Building-integrated photovoltaics (BIPV) have become a promising technology due to the urgent demand for sustainable energy supplies. Effective thermal regulation of BIPV is of great importance because the undesirable heat produced by photovoltaic (PV) modules will not only decrease the energy conversion efficiency, but also increase the building cooling load. The photovoltaic double skin façade (PV-DSF), regarded as one of the most feasible approaches to mitigate these problems, has been widely adopted and constructed globally. This paper presents a comprehensive literature review on PV-DSFs in terms of both energy performance and heat transfer characteristics. The energy performance of PV-DSFs involves a combination of energy supply from PV systems and energy demand for indoor heating, cooling and lighting. Investigations on the air flow and heat transfer characteristics in PV-DSFs are essential for understanding the heat transfer mechanisms and optimizing the system configurations. Based on the literature review, an outlook for future research is provided. This review article is expected to serve as a useful reference for future research and development of the PV-DSF technology.

中文翻译：

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光伏双层蒙皮外墙（PV-DSF）的能量性能和传热特性：综述

由于对可持续能源供应的迫切需求，建筑集成光伏（BIPV）已成为一种有前途的技术。BIPV的有效热调节至关重要，因为光伏（PV）模块产生的不良热量不仅会降低能量转换效率，还会增加建筑物的制冷负荷。光伏双层外墙（PV-DSF）被认为是缓解这些问题的最可行方法之一，已在全球范围内广泛采用和建造。本文从能量性能和传热特性两方面对PV-DSF进行了全面的文献综述。PV-DSF的能源性能涉及PV系统的能源供应与室内供暖，制冷和照明的能源需求的结合。对PV-DSF中的空气流动和传热特性进行研究对于理解传热机理和优化系统配置至关重要。基于文献综述，提供了未来研究的前景。预期该评论文章将为PV-DSF技术的未来研究和开发提供有用的参考。