It is well-known that the so-called heat pump is an energy-saving device that uses high energy to flow heat from a low heat source to a high heat source. As the name implies, heat pumps, like pumps, can convert low-level heat energy (such as air, soil, water, solar energy, life and production waste heat) that can not be used directly into high heat energy that can be utilized to save some of the high energy (Such as coal, gas, oil, electricity, etc.) purposes. Thus, the heat pump in the role of science in the role of: 1. Heat pump technology is the application of low-level renewable energy is one of the important technical measures. A very important point in using energy scientifically is to use all available energy sources to effectively reduce the rate of resource consumption. Based on this philosophy, people are increasingly concerned about how natural energy such as solar energy stored in soil, groundwater, surface water or air, as well as waste heat from living and production, can be used for building heating and hot water by heat pump technology Supply, which effectively reduce the high energy consumption speed. 2 heat pump is a reasonable use of high energy model. High-end heat pump can be used as a driving energy, to promote the power machine (such as motor, gas engine, fuel engine, steam turbine, etc.), and then driven by the power machine working machine (such as refrigerators, ejectors) operation. The working machine, like a pump, conveys the low heat to high levels to heat the user and enables the scientific deployment of energy. Heat pump heating technology fully reflects: 1. The high to meet the needs of high-end, the low to meet the needs of low-end, rational and effective use of energy to control the rate of entropy increase; 2. To be able to use waste energy, do not use high-quality energy . Therefore, heat pump heating technology is an efficiency and efficiency of the most ideal system, which is a good example of the scientific configuration of energy sources. Harbin Institute of Technology School of Municipal and Environmental Engineering professor, doctoral tutor Ma Liang
