Abstract
Nowadays, the Heat pump water heater is mostly used in commercial applications because it saves up to 2–3 times the energy of ordinary water heaters. The heat pump makes use of a refrigerant for its operation. The low-temperature refrigerant absorbs free heat from the atmospheric air in the evaporator is compressed by a highly efficient electrical compressor to a high-temperature and high-pressure vapor refrigerant. This vapor is then passed through a heat exchanger (condenser) to transfer the heat to the water available in the tank to produce hot water. Further, the refrigerant then passes through an expansion valve and goes back to the evaporator for absorbing the free heat from the atmospheric air again and the cycle is repeated. In this research work, the IoT based automation of heat pump water heater is proposed to control its process automatically and also through mobile app based on the user requirement. So that users can operate the smart heat pump system anywhere and it will create eco-friendly environment for commercial applications.
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