Study on the heating effect of a solar-air source heat pump combined system with direct supply of hot air
The development of solar composite heat pump technology can effectively overcome the shortcomings of large fluctuations in the heating performance of solar heating devices caused by spatial changes at any time,thus realizing a more stable,low energy-consuming heating.However,different forms of composite heating systems all have some degree of advantages and disadvantages.Combined with the heat demand in rural areas in the north,a solar composite heat pump heating system combining solar air collector and air source heat pump with dual-mode operation is proposed,the operation mode and control strategy of the system are also given,and the composition structure and energy consumption of the system are analyzed.The system utilizes solar through-tube collectors to heat the air and then send it directly to the load room,solar-assisted heat pumps,and setting up water tanks to store solar heat to bear the heat load at night,making full use of solar energy resources to replace other types of energy for heating,and the system also uses solar energy to replace other types of energy for heating,green and low-carbon heating is realized.The indoor heating effect of the heating system was simulated using Airpak software.The results indicate that the indoor temperature is generally above 20℃,the wind speed is less than 0.2m/s in most areas,and the indoor PMV is around-0.1 on average,personnel thermal comfort is fine.
solar energyair-source heat pumpcombined heating systemairpak simulationanalysis of energy consumption
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