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为改善空气源热泵及三套管蓄能换热器的低温适应性,对太阳能辅助三套管蓄能器供热模式进行实验研究。结果表明,升高太阳能热水温度或增大热水流量皆可提升系统的供热能效,在相同供热水流量和供热水温度条件下,相比空气源热泵或三套管蓄能器供热,新模式的制热功率可分别提高57%和13%,功耗可分别降低42%和41%。太阳能辅助三套管蓄能器供热模式可有效改善空气源热泵及三套管蓄能换热器的低温适应性,且运行过程稳定,能效较高。
In order to improve the low temperature adaptability of the air source heat pump and the three-tube accumulator heat exchanger, an experiment was conducted on the heating mode of the solar assisted three-tube accumulator. The results show that increasing the solar hot water temperature or increasing the hot water flow can improve the heating efficiency of the system. Compared with the air source heat pump or the three-bushing accumulator at the same hot water flow rate and hot water supply temperature, Heating, the new model heating power can be increased by 57% and 13%, respectively, power consumption can be reduced by 42% and 41%. The solar assisted three-tube accumulator heating mode can effectively improve the low temperature adaptability of the air source heat pump and the three-tube accumulator heat exchanger, and the operation process is stable and the energy efficiency is high.