|
|
|
| Analysis of Greenhouse Warming Effect in Winter based on Air Source Heat Pump |
| WANG Qiang1，YANG Yu-yao1，XIA Li-ru2，BAO En-cai2，CAO Kai2，WU De-lin1* |
| 1Technology School of Anhui Agricultural University，Hefei 230036，Anhui，China；2Institute of Agricultural Facilities and Equipments，Jiangsu Academy of Agricultural Science，Key Laboratory of Protected Agriculture Engineering in the Middle and Lower Reaches of the Yangtze River，Ministry of Agriculture and Rural Affairs，Nanjing 210014，Jiangsu，China |
|
|
|
|
Abstract This paper adopted air source heat pump combined with pipeline ventilation method to heat the solar greenhouse，test indoor thermal environment，calculate the COP of air source heat pump，and compared the energy saving rate with the traditional coal-fired boiler．The test results showed that the average COP value of a typical sunny air source heat pump was 1.76，saving 23.4% energy compared with coal-fired boiler．Adopting air source heat pump to heat the greenhouse，the temperature of day time could reach 23.09 ℃，and 8.68 ℃ at night，compared with that of the contrast greenhouse increasing 6.95 ℃ and 3.99 ℃，respectively．The calefacient effect was obvious．At day time，the relative humidity was 47.45%，and 70.02% at night，reducing by 18.56 and 18.75 percent Point，respectively．The dehumidification effect was also obvious．
|
|
Received: 08 August 2019
|
|
|
|
|
|
|
