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The purpose of this study is to use water cooler and water heater to improve the convenience of the user so that they can use the water cooler and mobile water heater properly and comfortably. This study focuses on how refrigeration and water heaters use thermoelectric pads as a cooling and heating medium. Peltier works when the voltage is flowing from the power bank. The temperature difference on the surface of the processor allows the heat to occur at a fast rate. Arduino uno is used as a voltage regulator and temperature sensor to improve product performance. concept designs are designed, created and evaluated. The final prototype will include some markers that will be used as temperature readings by cooling and heating. Based on the results shown, the prototype can achieve the desired result with optimized energy consumption. When the temperature supplier produces a good temperature, the amount of water temperature will rise and the heat in the water will reach thermal equilibrium until the cold and hot temperatures reach a better minimum. Therefore, the temperatures in the cold and hot areas are more efficient in achieving thermal equilibrium in rising water.

One of the basic problems in the development and production process of molds for injection molding is the control of temperature conditions in the mold. Mold temperature control is one of the most important parameters in injection molding process of thermoplastics. Mold temperature should be controlled so that the mold temperature is in the right accordance with the standard specifications of plastic to ensure the quality of plastic produced is consistent. This project is focused on designing and developing thermoelectric cooler for controlling mold temperature in injection molding using Arduino UNO. The design for this project is selected by using Pugh Method. This project is done by clamping thermoelectric peltier between the water-cooling block. Arduino UNO and relay that are used to control temperature sensor and water pump at the hot and cold side. Testing data is obtained from the Arduino UNO that is connected to the temperature sensor. Based on the testing result, this project is working well but it needs some modifications for improvement before it can be used in the injection molding machine.

The purpose of this research project is to design thermoelectric air cooling using peltier with a portable load factor and reasonable price. This new design is based on ideas obtained from existing mobile air conditioning and designs available in the market. The final idea of concept design for thermoelectric air conditioning is based on the concept chosen based on the best features. From the analysis, these thermoelectric cold airs can produce cool air up to 16°C. In conclusion, the designs can solve the problem for large-scale air conditioner installations in addition to producing cool air up to 16°C.

A study has been developed on water cooling products where using a thermoelectric system of peltier which produces cold and heat for learning and also it needs for the Final Year Project, in Diploma of Manufacturing Engineering. This study is aimed at improving the use of the system in the water cooling as well as adding convenience for consumers to use the water cooler well and comfortably. This is in line with the needs of users who need the convenience of any water cooling and easy to use in line with the development of technology developed through existing products in the market. This study focuses on how to develop a water-cooled product system so that this product can provide the user with the convenience. To develop the system, thermoelectric peltier and arduino uno are used to provide improvements to existing products. The peltier thermoelectric, also often called the Peltier coolant that utilizes the Peltier effect when passed through the current, this device will transfer heat from one side to the other, typically producing a heat difference of about 40° C - 70° C. Arduino is a microcontroller based ATmega328 board. Arduino has 14 input pin/ output which 6 pins can be used as PWM output, 6 analog input, 16 MHz crystal oscillator, USB connection, power jack and reset button. Arduino is capable of supporting microcontroller; can be connected to a computer using USB. Arduino cable is also programmed using a special software called ARDUINO GENUINO which program the cooling temperature of the peltier thermoelectric. In conclusion, this system has been successful in helping to increase knowledge and convenience to consumers and will probably be one of the obligatory products in every home in the future.

A study has been developed on mini fridge products where using a thermoelectric system of peltier which produces cold and heat for learning and it needs for the final year project, in Diploma of Manufacturing Engineering. This study is aimed at improving the use of the system in the fridge as well as adding convenience for consumers to use the fridge well and comfortably. This is in line with the needs of users who need the convenience of any fridge and easy to use in line with the development of technology developed through existing products in the market. This study focuses on how to develop a fridge product system so that this product can provide the user with the convenience. To develop the system, thermoelectric peltier and Arduino UNO are used to provide improvements to existing products. The thermoelectric, also often called as peltier coolant that utilizes the peltier effect when passed through the current, this device will transfer heat from one side to the other, typically producing a heat difference of about 40 ° C - 70 ° C. Arduino is a microcontroller based ATmega328 board. Arduino has 14 input pin/output which 6 pin can be used as PWM output, 6 analog input, 16 MHz crystal oscillator, USB connection, power jack and reset button. Arduino is capable of supporting microcontroller; can be connected to a computer using USB. Arduino cable is also programmed using a special software called Arduino GENUINO which program the cooling temperature of the peltier thermoelectric. In conclusion, this system has been successful in helping to increase knowledge and convenience to consumers and will probably be one of the obligatory products in every home in the future.

Main objective of this research is to study the performance of thermoelectric cooler for application in cooling system of injection molding machine in order to improve the cooling system and cooling cycle time of injection molding machine nowadays. The project is done by using thermoelectric devices, water block, Arduino UNO, relay module and water pump. With the testing and experiment rig carried out, it is discovered that the thermoelectric devices could also being applied into the injection molding cooling system. The testing was carried out by clamping thermoelectric devices with two water block and regulating water in both water block. Arduino UNO microcontroller and relay module was used to control the temperature sensors and water pumps in the hot-side and cool-side of the water block. Both temperature of water is being measured and recorded by the temperature sensors and Arduino software. Hence, the data and graph of result could be gained while the experiment is being carried out. From the result of experiment, the thermoelectric devices can be said as an effective cooling system as long as the heat produced at the hot side of the thermoelectric could be removed all the time. However, for the real environment injection molding machine applying, this system will need modification and adjustment on design of the cooling system.