近零能耗建筑作为节能建筑的再发展，是解决建筑能耗过大问题的主要策略，可助力实现“双碳”目标。近零能耗建筑可以通过被动式技术显著降低建筑的显热负荷，但仅依靠被动式技术不能调节建筑的潜热负荷，还需使用主动的独立新风系统来调节建筑潜热负荷。转轮除湿空调系统具有除湿能力强、水为制冷剂以及利用太阳能等低品位热源驱动等突出优点。因此，提出并优化一种热管型转轮新风系统以满足夏热冬暖地区近零能耗建筑的热舒适性要求，实现近零能耗建筑新风系统高效率和低能耗。
提出了热管型转轮新风系统的三种模式。对三种模式下的热管型转轮新风系统的热力学过程及性能进行了分析，以获得适用于夏热冬暖地区近零能耗建筑热管型转轮新风系统的最优配置模式。热力学分析表明在满足近零能耗建筑温湿度要求的情况下，模式Ⅰ（湿膜加湿器置于热管换热器蒸发段后）的㶲效率最高，可达43.3%。
建立了热管型转轮新风系统实验台，实验研究了主要运行参数对热管型转轮新风系统性能的影响。实验结果表明：当处理温度增加时，㶲效率降低，热力性能系数（TCOP）增加；当处理含湿量增加时，㶲效率（η）降低，TCOP增加；当处理风量增加时，㶲效率和TCOP增加；当再生温度增加时，㶲效率和TCOP降低。其中再生温度对系统性能的影响最显著，当再生温度从60 ℃升高到110 ℃时，TCOP值从1.30降低到0.52，η值从0.76降低到0.18。
利用TRNbuild软件仿真研究了典型夏热冬暖地区近零能耗建筑全年温湿度和负荷变化情况。仿真结果表明：在夏热冬暖地区依靠被动措施的近零能耗建筑全年具有较好的保温性，但近零能耗建筑在夏季仍然有2883 h出现过热的情况，在冬季有2097 h出现过冷的情况。除此以外，夏热冬暖地区近零能耗建筑内相对湿度较高，全年相对湿度不满足率在60%以上。
通过TRNSYS软件仿真研究了太阳能驱动热管型转轮新风系统性能，并分析了应用于夏热冬暖地区近零能耗建筑的可行性。仿真结果表明：太阳能驱动热管型转轮新风系统全年运行性能良好，室内全年有90%以上的时间使温湿度维持在人体热舒适区间内，具有良好的室内热舒适环境。在典型夏热冬暖地区，利用太阳能热水系统、光伏系统和光伏/光热系统均能降低热管型转轮新风系统能耗，但利用光伏/光热系统驱动的热管型转轮新风系统性能最佳。利用光伏光热系统驱动的热管型转轮新风系统TCOP最高达到了2.3，相较于传统转轮除湿空调系统提高了2.29倍，全年平均能耗最低达到了54.98 kWh/m2，相较于传统转轮除湿空调系统降低了35.32%。

Nearly zero energy buildings have been identified as the main strategy to solve the problem of excessive building energy consumption, as the redevelopment of energy-saving buildings，, which can assist the realization of the goal of "double carbon". Nearly zero energy buildings can significantly reduce the sensible heat load of buildings by using passive technology. But only relying on passive technology cannot adjust the latent heat load of buildings. Active dedicated outdoor air system is also needed to adjust the latent heat load of buildings. Desiccant cooling system can significantly reduce the latent heat load of buildings by using solar energy. Therefore, a desiccant cooling system with heat pipe is proposed, which combines the desiccant wheel, heat pipe and wet membrane humidifier to meet the thermal comfort requirements of nearly zero energy buildings in high humidity areas.
Three modes of desiccant cooling system with heat pipe are proposed. The thermodynamic analysis under three modes which are thermodynamic process and exergy analysis, in order to obtain the desiccant cooling system with heat pipe mode which is most suitable for nearly zero energy buildings in hot summer and warm winter areas.  The results show that under the condition of meeting the temperature and humidity requirements of nearly zero energy buildings, the exergy efficiency of mode I is up to 43.3%, which is the most suitable for nearly zero energy buildings.
The experimental platform of desiccant cooling system with heat pipe is established. The main working parameters affecting the performance are studied through experiments. The experimental results show that when the process temperature increases, the efficiency decreases and the coefficient of thermal performance (TCOP) increases; when the moisture increases, the efficiency decreases and TCOP increases; when the process air volume increases, the efficiency and TCOP increase; when the regeneration temperature increases, the efficiency and TCOP decrease. The regeneration temperature has the most significant impact on the system performance. When the regeneration temperature increases from 60 ℃ to 110 ℃, the TCOP decreased from 1.30 to 0.52, η decreased from 0.76 to 0.18.
The temperature, humidity and load changes of nearly zero energy buildings in hot summer and warm winter areas are simulated and studied by TRNbuild. The simulation results show that the nearly zero energy buildings relying on passive measures have significantly thermal insulation in hot summer and warm winter areas, but 33% and 24% of the nearly zero energy buildings are still overheated in summer and supercooled in winter respectively. In addition, the relative humidity in nearly zero energy buildings in hot summer and warm winter areas is high, and the annual relative humidity dissatisfaction rate is more than 60%.
The performance of solar driven desiccant cooling system with heat pipe is studied through TRNSYS, and the feasibility of applying it to nearly zero energy buildings in hot summer and warm winter areas is analyzed. The simulation results show that the solar driven desiccant cooling system with heat pipe has significantly operation performance all year round, and the indoor temperature and humidity are maintained within the thermal comfort range of human for more than 90% of the year, which has a great indoor thermal comfort environment. In hot summer and warm winter areas, the use of solar thermal system, photovoltaic system and photovoltaic/thermal system can reduce the energy consumption of desiccant cooling system with heat pipe, but the performance of desiccant cooling system with heat pipe driven by photovoltaic/thermal system is the best. The highest TCOP of the desiccant cooling system with heat pipe driven by the photovoltaic/thermal system is 2.3, which is 2.29 times higher than the traditional desiccant cooling system, and the lowest annual average energy consumption is 54.98 kWh/m2, which is 35.32% lower than the traditional desiccant cooling system.