基于燃气机驱动的太阳能热泵供热仿真性能研究

Simulation Study on Performance of Heating System with Solar Heat Pump Driven by Gas Engine

目的为缓解能源危机，利用可再生能源太阳能和天然气供热，减轻环境污染和电网的压力，提出一种基于燃气机驱动的太阳能热泵的新型的供热系统，并研究其供热性能．方法利用TRNSYS及Simulink模拟仿真，分析不同参数的变化对系统供热性能影响的变化趋势和规律．结果模拟得到系统的制热能效比可达到4．76，一次能源利用率可达到1．96，当燃气压缩机转数取1600—2000r／min时，系统供热性能和舒适性最好．结论基于燃气机驱动的太阳能热泵和已有的传统电驱动的太阳能热泵系统、空气源燃气热泵系统相比，在系统供热稳定性、节能及经济性方面具有明显优势．

Using renewable solar energy and natural gas for heating can not only alleviate energy crisis and decease environmental pollution, but also reduce the pressure of power grid. The author proposed a new type of heating system, based on solar heat pump driven by gas engine. Using TRNSYS and SIMULINK simulation, study on heating performance of the system was carried out. Influences of different parameters on system heating performance were also analyzed. Results show that the coefficient of performance（COP） of system is 4. 76. The first usable energy efficiency can reach 1.96. When the RPM of gas compressor is 1 600 N 2 000 r/min, the heating system performance and the comfort are the best. It indicates that the solar energy heat pump driven by gas engine has obvious advantages in heating system stability, energy saving and economical effects compared with the traditional system of solar heat pump driven by electric motor.