由王胜文、成家豪等撰写的论文Enhancing dedicated outdoor air system heating performance in cold climates with integrated enthalpy heat exchanger and heat pump在Energy and Buildings 2025年第345卷在线发表。对于独立新风系统（DOAS），论文研究了排风热回收热泵与全热交换器相结合的系统构型，并探讨了如何提升其在寒冷地区的冬季制热性能。论文研究表明在排风热回收热泵与全热交换器相结合的系统中，应以排风热回收热泵为主、全热交换器为辅，打破了传统的全热交换器为主、热泵为辅的设计理念。

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论文摘要：

The dedicated outdoor air system (DOAS) integrated with enthalpy heat exchanger (EHX) is widely used in buildings due to its cost-effective exhaust air energy recovery. Adding a heat pump can enhance heating capacity and heat recovery, but the conventional configuration (DOAS_EHX+EAHP), with the heat pump evaporator downstream of the EHX, faces challenges like frosting and instability in sub-zero temperatures. This study proposes an innovative configuration, DOAS_EHX+RA-EAHP, which introduces a return air coil upstream of the EHX to establish a stable heat source for heat pump, reducing frosting risks. The conventional mode is retained for switchable operation to enhance flexibility and performance. Simulations reveal that DOAS_EHX+RA-EAHP extends the frost-free region to temperatures approximately 10 °C lower than DOAS_EHX+EAHP. Additionally, the impacts of heating capacity and EHX effectiveness on frost-free region are systematically analyzed. A strategy is developed to balance heating efficiency and operational reliability. Heating seasonal performance evaluation reveals significant improvements: the proposed system increases the target temperature compliance ratio (TTCR) by 10.7 %∼67.7 % and improves the heating seasonal performance factor (HSPF) by 1.4 %∼29.9 % compared to the conventional system.