Development of Hybrid Solar -Wind Power Generatiog System

Authors: Garry Maya Anole, Malson Andaja and Ma. Fatima B. Zuñiga

Abstract: This study was conducted to develop a hybrid solarwind power generating system intended for the instructors and students of Bachelor of Industrial Technology. The design considered the intermittent natural energy resources for photovoltaic-wind hybrid electrical power supply system. The hybrid solar-wind generating system accommodated and satisfied the needs of people living in remote locations where a conventional grid connection is inconvenient and expensive.  Solar and wind power generating system simply means to generate an electricity from two or more power sources. It rely on two or more sources of energy for electrical generation and are configured so that the loads can be served directly or indirectly by one or more of these sources.The project was tested using the multi tester and electrical load such as light bulbs with 6 watts, 9 watts 12, watts and industrial funs in front of the participants.During the evaluation, thirty (30) participants were chosen randomly to evaluate the questionnaires using the criteria of functionality, workability, safety, durability, sale ability and aesthetic of the study. The participants were students, employees of (PPS) and professors of the Department of Industrial Engineering and Technology. Based on the evaluation, the total means average was 4.6 which was higher than the numerical rating of very satisfactory. Therefore, the project of hybrid solar - wind power generating systems was excellent.  

Keywords: Solar energy, Wind energy, Renewable Energy, PV Cell, Hybrid Power System  

Development of a Microcontroller-Based Ventilation System

Authors: Vincentson M. Reales, Raymond James P. , Torres and Danielito R.  Escaño

Abstract: Microcontroller-based ventilation system role is for the users to be more comfortable. Though the aid of microcontroller we can operate the system from a certain distance. The remote control transmits a tone using a radio frequency. This tone is decoded by a receiver, since the receiver only switches when the tone is receive and the system will function according to its program. This project aimed to develop a microcontroller-based ventilation system in one of the room in the Department of Industrial Engineering and Technology (DIET).The development will include the operation of a multiple electric fans simultaneously and separately with same microcontroller device. This will make the system more convenient to use by removing the problem of having multiple remote controllers. The design project was developed from January 2017 to March 2017 in Brgy. Alulod, Indang, Cavite. The project was evaluated by the student and instructor in Electrical Technology Section of the Department of Industrial Engineering and Technology under the College of Engineering and Information Technology. This project design composed of Gizduino Microcontroller, RF module 4 relays, single relay switch, Terminals and 4 single switches. These components are mounted in the fiber glass base using screws and knots for easy assemble and disassemble in case of replacing some device .These components are covered by a fiber glass frame and cover, so you can see all the components inside the housing. It has a good wirings and tagging’s so it is easy to determine where the wires were connected. The microcontroller-based ventilation system can operate and control the power of the orbit fans but cannot control the speed of each fans, however it can still change the speed in the conventional switches. In case of malfunction of the system the orbit fan can be used through manual operation if the single switches were turned on. The added feature of the design project is the automatically power down of appliance. If the user forgot to turn off the orbit fans, the system will automatically shut down after two hours to prevent power consumptions. However if the system shut down it can be easily reset. The reset button is placed beside the lighting switch.  

Keywords: Microcontroller-based ventilation system, Electrical Technology

Development of a Dual Purpose Alternator Tester With Battery Charger

Authors: Charlie I. Toledo,  Jeffrey O. Paderan, and Emerson C. Lascano

Abstract: The project design was conducted at Tres Cruses, Tanza, Cavite and was evaluated at Cavite State University, College of Engineering and Information Technology under the Department of Industrial Engineering and Technology by the instructors and students of Electrical Section of the Department of Industrial Engineering and Technology.The project design was proven useful for the students to test an alternator and charge a battery.The project aimed to design a dual purpose alternator tester and battery charger, construct a dual purpose alternator tester with battery charger, test and evaluate the efficiency of the dual purpose alternator tester and battery charger. When the tester connected the battery to the battery clamp the indicator light turned on if the alternator are still on a good condition and the voltmeter show the battery volts output and once the tester turn on the circuit breaker it started to charge the battery and the indicator light will turn off. The voltmeter can indicate the battery supply and it can indicate if the battery are charging or not.

Keywords:  Alternator Tester, Electrical Technology

Improvement of the Security Features of the Light Driving Vehicle

Authors: Dino Harold G. Soria, Judell B. Tardaguela, and Danielito R. Escaño

Abstract: The available car in the Department of Engineering and Technology, in the automotive shop was successfully installed with the security features as follows; parking sensors, power lock, car alarm system, dash camera, rearview camera, rearview monitor and GPS/GSM shield. The study focused on the security features of the vehicle, and the way these features maximized the security of the vehicle. The improvement of the security features of the light driving vehicle was constructed following different methods and strategies. These methods include: canvassing and purchasing the security features, installing the car alarm system, power lock, parking sensors, rearview camera, and rearview monitor. The researchers programmed the microcontroller Genuino Uno with its function that, when the microcontroller was triggered, it would send the coordinates of the location of the microcontroller. Then it was installed as the last part of the security features in the light driving vehicle. The study also helped the instructor, and electronics and automotive students, as well to learn the installation of the security features in the light driving vehicle. The user manual of the design project will serve as a guide to further enhance the knowledge and skills of the current and upcoming electronics and automotive students. The design project costs a total amount of P25, 045.00.

Keywords: Safety, Light Driving Vehicle  

Improvement of Microcontroller Based Fire Alarm Monitoring System in the Department of Industrial Engineering and Technology

Authors: Sanmer A. Santorias, Rholland R. Rosarda, and Emerson C. Lascano

Abstract: The designed project was developed and constructed at the Department of Industrial Engineering and Technology, College of Engineering and Information Technology, Cavite State University, Indang, Cavite from August 2016 to February 2017. Generally, the study aimed at the improvement of microcontroller based fire alarm monitoring system in the Department of Industrial Engineering and Technology for the safety and security of the students and faculty occupying the building. This study was a great contribution for the fire alarm systems’ improvement of the department as well as to the whole college. The Improvement of Microcontroller Based Fire Alarm Monitoring System in the Department of Industrial Engineering and Technology was a project design conduct to help in the major rehabilitation of electrical supply in fire alarm system of the department. It also provides an opportunity to the researchers to fully conducted rewiring, installing and improving such system that gave knowledge and hands-on experiences to the operations in fire alarm system. The design project system in terms of its functionality, workability, durability and safety were computed. The study met all the objectives and was confirmed as a successful one.

Keywords: Microcontroller Based Fire Alarm, Safety

Development of a Linear Motor Trainer

Author: Mark Wincent B. Nicol, Rex S.  Palermo, and Garry M. Cahibaybayan

Abstract: The study was conducted from September to April 2017, located at the Cavite State University, Indang Campus at the Department of Industrial Engineering and Technology. The study aimed to: design a linear motor trainer; construct a linear motor trainer, test and evaluate the linear motor trainer, and conduct cost and analysis.Once the model was calibrated, it was evaluated and estimates the theoretical efficiency of the motor under other conditions. With this information, the different parameter of the motor for different applications was optimized. This small prototype demonstrates how the linear motor works. The system developed was a low cost for versatile education and teaching environment in order to facilitate hands-on education of undergraduate electrical students.Testing and evaluation of the system were done to determine the strength and the weaknesses of the trainer and for the students to know how the system works. The participants in evaluating the system included 20 students and 5 professors. The system assured that the students could be globally competitive and skilled in this kind of course. It is also allowed the student to apply their theoretical knowledge of electromagnetism.

Keywords: Linear Motor, Trainer

Development of Automatic Water Levelmotor Control System

Authors: Gian Eldreen A. Marinduque, Ronnie Ferrera and Garry Cahibaybayan

Abstract: One of the core field of study of Bachelor of Industrial Technology major in Electrical Technology student is motor control. Motor control topic is difficult to learn and to teach when there is lack of equipments and facilities to be used for demonstration. In this project, Motor Control with the used of safety devices also plays an important role in academic growth and excellence of the students. Materials that used in the project design was canvassed and checked through online shopping. The researchers research for the needed materials and checked its availability for the design project. The materials to be used were considered and analyzed where to buy the needed materials. Electrical supplies are bought directly from Raon St. Quiapo and Sta. Cruz, Manila. The electrical supplies were generated from the cheaper but respectable suppliers. The frame of the prototype was constructed in Brgy. Luciano, Trece Martires City, Cavite. Angular bars was used of different dimension for the frame and marine plywood for the electrical components of the design project. Screw, bolts and nuts was used in the installation of the electrical devices. Wiring connections and proper placing of the sensors for the project was properly installed to function correctly.

Keywords: Control System, Automatic Water Levelmotor

Development of an Electric Roll Up Door in the Department in Industrial Engineering and Technology

Authors: Mark Alexis L. Manlogon,  Merven C. Marasigan, and Danielito R. Escaño

Abstract: The study entitled “ Development of an Electric Roll Up Door in the Department of Industrial Engineering and Technology” was conducted  to develop an electric roll up door for the department from February 2016 up to March 2017.Specifically, it aimed to design an electric roll-up door that can easily move up and down and can be controlled automatically and manually; construct an electric roll-up door using a remote control and push button; test and evaluate the functionality of the electric roll-up door; and to conduct a cost analysis for an electric roll-up door. The  electric roll-up door with a dimension of 178 cm by 350 cm featured two functions; electrical driven and manually operated. Switch, remote control and chain block is used to control the operation to “up” and “down” the rolling door. In case of black out or change power of electricity supply, this design project can be operated manually using metal chain. The door had also a provision of manipulating the roll-up door with the use of remote control; the device was designed to operate within a range of 50 meters. The researchers had evaluated the design project specifically with 30 participants including students and faculty members in the Department of Industrial Engineering and Technology with a result of  an overall average mean of 4.86 (Outstanding). Based from the results of an evaluation the designed project was found beneficial to the participants including the user, students and the instructors. The design project had a total cost of P34,645.00.

Keywords: Roll Up Door, Industrial Engineering and Technology

Development of Electric Motor Controller Trainer

Authors: Ferrer, Clifford John P., Sabinada Jr., Leonito D And Garry M. Cahibaybayan

Abstract: The project aimed to develop an electric motor controller trainer. Specifically, this aimed to design and develop an electric motor controller trainer which would help the students to be familiarized with the basics and the different functions of electric motor controller trainer, test and evaluate the functionality and efficiency of the electric motor controller trainer and conduct cost analysis. An electric motor controller trainer was designed and developed. After installation, the designed project was evaluated by the students and faculty members of College of Engineering and Information Technology. The social acceptability of the designed project was evaluated in accordance to its functionality, workability, durability and safety. The electric motor controller trainer was installed at the Department of Industrial engineering and Technology was found to be efficient, economical and lessen electrical consumption. The total mean of the entire criteria was 4.61 or “Excellent”, which implies that the designed project is socially functional, workable, durable and safe.

Keywords: Electric Motor Controller, Trainer

Development of an Electrical Installation and Maintenance Trainer

Authors: Romeo V. Digo Jr., Roland Zyrel O. Uy, and Garry M. Cahibaybayan

Abstract: The study was conducted to help the Electrical student easy to install actual activity in the electrical laboratory and also could help the trainers who are taking up national certificate (NCII) and other related standardization and assessment tests. The Development of an Electrical installation and maintenance trainer was tested and evaluated in terms of efficiency, workability, economy and safety. The study was conducted from September 2016 to March 2017 at the Department of Industrial Engineering and Technology Building, Cavite State University, Indang, Cavite. The main objective of the study is to develop electrical Installation and maintenance trainer specifically, this study aimed to: 1. Design an electrical installation and maintenance trainer; 2. Develop useful electrical installation and maintenance trainer for students who will take NCII Assessment; 3 Test the effectiveness of the module and trainer; 4. Conduct cost analysis of the overall materials and equipment needed; After construction and installation the project was evaluated beside the Department of Industrial Engineering and Technology (DIET) building, CvSU, Indang, Cavite. It was composed of of rectangular tube, plywood and flat bar. The components are mounted of frame which is 1 inch x 2 inches rectangular tube that is strongly supported by # 1 flat bars. attached the following materials such as; meter base, panel board, circuit breaker, metal conduit and plastic conduit, three way switches, convenience outlet, A.C.U., utility box, junction box, receptacles and bulb. The design project is provided with tools including pliers (long nose and flat), screw driver, electrical tape, side cutter helmet and gloves for the safety of the trainee. The project was installed in the DIET Electrical Laboratory and constructing for the improvement of an instructional wiring board with the proper installation of three way connection, convenience outlet, air conditioning unit and etc. provided with tools and electrical equipment. . The social acceptability of the designed project was evaluated in accordance to its functionality, workability, durability and safety. The total mean of the entire criteria was 4.87, which is interpreted as “Outstanding”. The total cost of the study amounted to P15,442.00.

Keywords: Trainer,  Electrical Installation and Maintenance

Development of an Automated Sensored Tool Cabinet

Authors: Ricky F. Rivera, Rafael T. Delos Reyes, and Garry M. Cahibaybayan

Abstract: The project aimed to design automated sensored tool cabinet. Specifically, this aimed to (a) determine how effective the design project compare to the common tool cabinet; (b) design an automated sensored tool cabinet as the safeties tool cabinet in the (DIET) Department of Industrial Engineering and Technology; (c) construct an automated sensored tool cabinet. A prototype of an automated sensored tool cabinet was designed and developed. After installation, the designed project was evaluated by the students and faculty members of Department of Industrial Engineering and Technology. The social acceptability of the designed project was evaluated in accordance to its functionality, workability, durability and safety. The automated sensored tool cabinet installed at the Department of industrial engineering and Technology (Display Room)  was found to be efficient, economical and safety.  The total mean of the entire criteria was 4.82 or “Excellent”, which implies that the designed project is socially functional, workable, durable and safe.

Keywords: Automated Sensored Tool Cabinet, Smart Cabinet

Improvement of a Solar Powered Carbureted Gasoline Engine Trainer

Authors: Kimberly Anne E. Cresido, Yuri Bernardo B. Da Silva, and Danielito R. Escaño

Abstract: An average car battery has a capacity of around 48 amp hours which means that fully charged, it delivers 1 amp for 48 hours, 2 amps for 24 hours, 8 amps for 6 hours and so on. A basic charger usually charges at around 2 amps - and so needs 24 hours to deliver the 48 amps needed to fully charge a flat, 48 amp hour batteries. But there is a wide range of chargers with different charge rates on the market - from 2 to 10 amps. The higher the charge output, the faster a flat battery is recharged. Fast charging, however, is undesirable as it can buckle the battery plates. The loads imposed on a battery may be gauged from the amount of current used by the various electrical components: headlights take about 8 to 10 amps and a heated rear window about the same. Theoretically, a fully charged battery, without taking in current from the generator, should work the starter for about ten minutes, or the headlights for eight hours, and a heated rear window for 12 hours. As the battery nears full discharge, the lights gradually grow dimmer and finally go out altogether. There are also causes other than short trips and cold weather which can affect the state of the battery. Failure is more common on cars equipped with a dynamo rather than an alternator, because the alternator produces more electricity and charges better at low engine speeds. The study focused on charging battery and engine starter to cope up the needs of the department in lacking of battery charger. The improvement of a solar powered carbureted gasoline engine trainer was conducted following the different methods and strategies which includes: canvassing and purchasing of materials used in the design project; fabrication of the frame of the solar panel; fabrication of the charge controller cabinet; wiring connections of the components; testing and evaluations

The two major parts of the design project were installed in a different frames made up of angular bar that could  hold the component, the two major part of the project is put in different frame and placed in different location. The solar panel is placed in the 3rd floor of the Department of Industrial Engineering and Technology building and fixed using bolts and knots, while the charge controller is placed at automotive laboratory and fixed in the frame using bolts and knots. The design project was operated with charge controller, solar panel, starter circuit, and circuit breaker for safety purposes. The design project was proven to be useful for the instructor, students and tool keeper. The design project serves as a battery charger and engine starter that could be use in the automotive laboratory. The design project costs a total amount of Php 42,559.50.

Keywords: Solar Powered Carbureted Gasoline Engine, Renewable Energy

Development of a Single Phase Motor Control Instructional Trainer

Authors: Joshua P. Constante, Nikko Bryan L. Mercado, and Danielito R. Escaño

Abstract: One of the core field studies of Bachelor of Industrial Technology major in electrical technology students is the motor control, it is practiced in industries nowadays. Motor control topic is hard to learn and teach when there is lack of equipment and facilities to be used in demonstration. In this case learning process can be limited in this field. Motor winding also plays an important role in academic growth and excellence of the students. This study aimed to create solution on the lack of equipment and facilities in the Electrical Technology Section of the Department of Industrial Engineering and Technology (DIET), to help instructors to deliver their lessons easy, to satisfy the needs of the student in information and give a practical demonstration and explanation of how motor control and winding works together. The study was constructed and developed in Sabang, Dasmariñas City, Cavite and Department of Industrial Engineering and Technology from February to March 2017 and evaluated at Electrical Technology Section under the College of Engineering and Information Technology. The materials that used in the project design was canvassed and checked through online shopping. The researchers do search for the needed materials, and check its availability for the design project. The materials to be used were considered and analyzed where to buy the needed materials. Electrical and electronics supplies was bought directly from Raon St. Quiapo and Soler St.  Sta. Cruz, Manila for a much cheaper cost. Electrical supplies were generated from other cheaper but reputable suppliers. 

Keywords: Single Phase Motor Control Instructional Trainer

Development of an Automatic Fire Escape Ladder

Authors: Arjie B. Codera, Jerico N. Chavez, and Emerson C. Lascano

Abstract: The project was prepared in the Department of Industrial Engineering and Technology he used as an escape route to the people inside the building incase of the disaster. The fire escape ladder was used to make another route to escape the building when the primary exit was blocked, the ladder was placed to the back of the building of Department of Industrial Engineering and Technology. The control panel of the ladder was placed at the second floor of the building beside of display room. The control has “up” and “down” push button used to operate the ladder up and down. The control panel was connected to the fire alarm so that incase  the fire alarm  rang the ladder will work automatically. The materials  used in the controls was procured from  Raon St. Quiapo, Manila. It included the  push button, indicator light, 12vdc relay, and terminal block. For the materials used on the ladder, it was fabricated to Joel Steels and Fabrication. The development of an automatic fire escape ladder was made in order to help the people inside the building when a disaster occurs. It could be used as a means of learning about motor, specifically the  roller shutter motor.

Keywords: Safety, Fire Escape Ladder

Development of a Three Phase Motor Control Instructional Trainer with Wye-Delta Wiring Connection

Authors: Kim Joshua R. Cerdenia, Jeffrey D. Gargarita,  and Garry M. Cahibaybayan

Abstract: Motor control is one of the core field studies of Bachelor of industrial technology major in electrical technology students, it always exercise in industries. Lack of equipment and facilities make the motor control topic is hard to learn and teach used in demonstration. In this situation the learning procedure can be limited in this field. The motor winding also plays an important role in academic growth and excellence of the students. This project aimed to generate solution on not having of equipment and facilities in the Electrical Technology Section of the Department of Industrial technology (DIET), to help out the instructors easy to deliver their lessons, to satisfy the needs of the student in information and provide a practical demonstration and description of how the control and windings of motor works together. The proposed design project was assembled and developed from the month of September 2016 to March 2017 in Brgy. Alulod, Indang, Cavite and in the building of Department of Industrial Engineering and Technology. 

Keywords: Three Phase Motor Control, Instructional Trainer

Development of a Phase Converter Trainer

Authors: John Patrick P. Dinlasan, Jao Paul M. Camit, and Garry M. Cahibaybayan

Abstract: The Phase Converter Trainer was designed to develop a training device that will be used by Electrical students and the instructors of Batchelor of Industrial Technology major in Electrical Technology.The materials that use in the project design was canvassed and checked through online shopping. The researchers do search for he needed materials, and check its availability for the design project. The materials to be used were considered and analyzed were to buy the needed materials. The supplies was bought directly from Raon St. Quiapo, Manila, and the other supplies from Caloocan, Valenzuela. Electrical Supplies were generated from the other cheaper but resutable suppliers. The frame of the prototype was constructed in Matagbac, Alfonso, Cavite.The Phase Converter Trainer is composed of: circuit breakers, three phase outlet, power supply, ammeter, voltmeters, overload relay, push buttons, running capacitor, start capacitor, magnetic contactors, timer, induction motor, banana jack and plugs, terminals, emergency stop, pilot lights and wires. The components are mounted on a frame made of 1/2 size ply wood supported by 1/4 size angle bar frame. The ply wood are fastened on the on the angle bar frame by wood screws. The components are fixed on the ply wood. The prototype mini conveyor is not fix on the trainer so that it can be easily de-atache on the trainer for demonstrations. 

Keyword:  Phase Converter Trainer

Development of an Electrical Circuit Board Instructional Trainer with Common Tools

Authors: Cedie A. Caldona, Bryan Rick P. Peñalba, and Danielito R. Escaño

Abstract: The Electrical Circuit Board Instructional Trainer was designed to develop a training device that will be used by students and the instructors. One of the field of study of Bachelor of Industrial Technology major in Electrical Technology is the building wiring installation. The problem nowadays is the lack of equipment and limited knowledge in the field especially on the freshmen students that no knowledge about the connection and basic theory. The building wiring connection also plays an important role in academic role and to enhance the skills of the students. The materials used in the design project was canvassed and checked through internet research because it has no idea on the price of the component and devices. The researchers do search for the needed materials, and check its availability for the design project. The materials to be used were considered and analyzed to choose were to buy the needed materials. Electrical and electronics supplies was bought directly from Raon St. Quiapo Manila. The frame of the prototype was constructed in Brgy. Harasan Indang Cavite using mainly of marine plywood for the different dimensions of the frame that is to be installed with electrical components and devices. Installation of the binding post, circuit breaker, pilot lamps, single switch, three way switch, four way switch and other related components installed through soldering, and use of bolts and knots for the durability of the components. Wiring connection of the switch devices and lights will be properly installed for the correct function and operation of the circuit in the system. The operation of the project is based on the basic connections of Building Wiring Installation, These are; Three way switch connection and Four way switch connection with one LED bulb and the theory of Series and Parallel connections with four Pilot lamps, using banana jack and banana plug to connect the terminals of the switches through the supply to make it functioning. it also have a indicator lamp when the circuit board trainer is energized to identify whenever the supply is on.

Keywords: Electrical Circuit Board Instructional Trainer

Development of a Remote Controlled Light Switching System

Authors: Jesus Jr. P. Bañadera, Jake A. Venus, and Danielito R. Escaño

Abstract: Lighting system are widely used both indoor and outdoor area in a commercial, industrial, and residential spaces. The lighting control systems serve to provide the right amount of light where and when it is needed in a certain area. In recent decades technological development is increasingly automated function and allows integration of device into larger, more flexible system. Remote control is a device that process or a system that makes it possible to control something by distance using electric signals. Remote Controlled lighting system, it has role in lighting system that provides function of turning the light on and off. The study was conducted from January 2017 to March 2017 at City of Dasmariñas, Cavite and constructed at Department of Industrial Engineering and Technology Building, Cavite State University, Indang, Cavite. The main objective of the study is to develop a remote controlled light switching system. Specifically, this study aimed to: 1.this is repair and replace the existing lighting system in the Automotive Technology section. 2. This is upgrade the control switching Technology using remote control for the lighting system of the Automotive technology section. 3. this is improve the lighting system using remote controls. 4. this is provide a diagram and schedule of loads showing the principles and system of technology to be used as reference for future electrical technology and engineering students. 5. test and evaluate the developed remote controlled light switching system for acceptability, functionality; and 6. conduct cost analysis. After construction and installation the project was evaluated inside the Automotive Technology Section, Department of Industrial Engineering and Technology (DIET) building, CvSU, Indang, Cavite. It was composed of modem that serve as an receiver of command, remote control  as an transmitter of command to light switching system.The social acceptability of the designed project was evaluated in accordance to its functionality, workability, durability and safety. The total mean of the entire criteria was 4.87, which is interpreted as “Outstanding”. The total cost of the study amounted to P9,601.

Keywords: Light Switching System, Electrical

Development of Programmable Logic Controller Trainer

Authors: Renz Yvan S. Avizola, Jonrique F. Cueto, and Garry M. Cahibaybayan 

Abstract: The programmable logic controller trainer (PLC) was designed to develop a training device that will be used by students and the instructors of Electrical Technology. The system was installed with a push buttons, toggle switch (inputs), relays, mini conveyor prototype (outputs) to demonstrate the program that is written in the PLC. A power supply having 24V DC output is used for the supply of the PLC. A cellphone charger having 5V DC output is used for the supply of the prototype mini conveyor and 220V AC is used for the supply of the indicator lights. The conveyor uses a 5V DC-7.5V DC dynamo motor. The programmable logic controller trainer (PLC) is composed of: circuit breaker, extension outlet, power supply, charger, Programmable Logic Controller (PLC), relays, toggle switch, push buttons, indicator lights, prototype mini conveyor wires. The components are mounted on a frame made of 1/2 size ply wood supported by 1/4 size angle bar frame. The ply wood are fastened on the on the angle bar frame by wood screws. The components are fixed on the ply wood. The prototype mini conveyor is not fix on the trainer so that it can be easily detached on the trainer for demonstrations. The conveyor and indicator lights are connected in the relays they will operate depends in the operations of the relay.

Keywords: PLC, Trainer

Development of a Solar Powered Grass Cutter

Authors: John Patrick M. Martin, Arjay V.  Ardiza and Danielito R. Escaño

Abstract: Nowadays pollution is a major issue for the whole world. Pollution is manmade and can be seen in our own houses. In the case of a gas powered grass cutter, the emission of gases emitted by it is responsible for pollution. Also the cost of fuel is increasing hence it is not efficient. Some gardener use hand scissors to cut and maintain grass regularly which also takes more time, so the solar powered grass cutters are introduced. The study was conducted from September 2016 to March 2017 at Brgy. Agus-os Indang, Cavite and at Department of Industrial Engineering and Technology Building, Cavite State University, Indang, Cavite. The main objective of the study is to develop a solar powered grass cutter. Specifically, this study aimed to: 1. design construct develop a solar powered grass cutter; 2. that is economic and environmental friendly; 3. test and evaluate the developed solar powered grass cutter for acceptability, functionality; and 4. conduct cost analysis. After construction and installation the project was evaluated beside the Department of Industrial Engineering and Technology (DIET) building, CvSU, Indang, Cavite. It was composed of solar panel that serve as an energy source, battery as an energy storage, switch as a control for the system and dc motor that was connected in battery to perform grass cutting. Technology takes 6.2 hours to charge completely from drained battery, but it depends when sunlight is clear and good. The technology can run and operate for 5 hours.  The prepared cart fabrication has a length of 81cm including the handle, width of 69cm including two wheels in front and a height of 105cm including 4 wheels up to handle. The social acceptability of the designed project was evaluated in accordance to its functionality, workability, durability and safety. The total mean of the entire criteria was 4.79, which is interpreted as “Outstanding”. The total cost of the study amounted to P16,380.

Keywords: Grass-Cutter, Renewable Energy

Development of a Three-Phase Power System Trainer

Authors: Efren Jingbo IV A. De Castro, Carl Ivan H. Amulong, and Garry C. Cahibaybayan

Abstract: The study was conducted to enhance a present Three Phase Power System trainer. The study also used to evaluate the performance of the design through actual testing, The Three Phase Power System Trainer is a device that could turn on and off using three phase power supply. At the construction of the design, it was found that the project used a transformer with 220 volts input to 48 volts output to make it safe to use, so that it only allows using a loads with 48 volts. Finally, the design project demonstrated an innovation of enhanced three phase power system trainer. It handles easier task than existing three phase power system trainer. The study met all objectives and confirmed that this study was successful. The Development of a Three phase power system trainer was made to help the students to learn on how to balance the voltage of a single or three phase load and get its exact measurements, And to help the professors for their instructional activities. The Trainer is composed  of  frame using an angle bar, transformer with 220 volts input stepping down to 48 volts, capacitor, resistor, induction coil, binding post, three pole circuit breaker, banana male jack, automotive wire gauge 14, and pilot lamp with 48 volts The frame serves as the body of the trainer and it holds every single components of the trainer. It has a dimension of 56” length and 36” width.

Keywords: Trainer, Three-Phase Power System

Ergonomic Assessment on the Intensity of Musculoskeletal Disorders Among Dental Practitioners in Cavite

Authors: Jaygielyn S. Aguilar, Cathalene Dominique J. Lim, & Willie C. Buclatin

Abstract: The study was conducted to determine the prevalence and distribution of MSDs among dental practitioners. Through Cornell Musculoskeletal Disorder Questionnaire, ergonomic risk factors in dental operations were then identified. Rapid Entire Body Assessment was utilized to determine the work related MSDs triggered by the awkward working positions and poor work practices. The result of the study showed that majority of the dental practitioners said that the parts of the body that were significantly affected are the neck, right and left shoulders, upper and lower back, right wrist, and certain parts of the right hand such as the index, middle, ring, and thumb finger. The study also classified the MSDs in terms of age and gender. The REBA result showed that dental operations should be investigated and must be changed immediately. Recommendations were made in order to alleviate the ergonomics risk factors present in dental operations and were categorized based on the following: to the dental practitioners, and to the future researchers.

Keywords: Dental Practitioners; Musculoskeletal Disorders (MSDs); Rapid Entire Body Assessment (REBA)