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In view of the problem that data center evaporative cooling technology limited by the ambient wet bulb temperature, a solar energy and heat pump complementary drive the desiccant wheel evaporative cooling air conditioning system in data center was proposed. The system uses the waste heat of photovoltaic modules to provide thermal energy complementary heat pump system to drive the dehumidification regeneration. According to the outdoor meteorological conditions, the system can realize three operation modes: fresh air, evaporative cooling and dehumidification & evaporative cooling. The TRNSYS software is used to simulate the thermal, power and energy consumption characteristics of the three typical regional data centers in Shanghai, Guangzhou and Kunming. The results show that in the typical daily dehumidification +evaporative cooling mode in Shanghai, Guangzhou and Kunming area, the desiccant wheel pretreatment reduced the air wet bulb temperature by 10.9 °C, 11.6 °C and 10.3 °C on average compared with the outdoor wet bulb temperature. The average typical monthly system COP values in Shanghai, Guangzhou and Kunming were 4.9, 5.1 and 3.6, respectively, and the maximum instantaneous COP value was 12.1, 11.4 and 8.1.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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