Principle of water source heat pump

Shallow water sources on the Earth's surface (usually within 1000 meters), such as groundwater, surface rivers, lakes, and oceans, absorb considerable radiation energy from the sun entering the Earth, and the temperature of the water sources is generally very stable. The working principle of water source heat pump technology is to transfer low-temperature thermal energy to high-temperature energy by inputting a small amount of high-grade energy (such as electricity). The water body serves as the heat source for winter heat pump heating and the cold source for summer air conditioning. In summer, the heat in the building is "extracted" and released into the water body. Due to the low temperature of the water source, it can efficiently carry away the heat to achieve the goal of cooling the indoor buildings in summer; In winter, heat energy is extracted from the water source through a water source heat pump unit and sent to the building for heating.