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- W4385662851 abstract "Passive ventilated building envelope (PVBE) is increasingly gained interest in passive cooling due to its structural simplicity and zero energy consumption. Considering the energy conversion and thermal management of thermoelectric module (TEM), PVBE is integrated with the hot side of TEM to meet its functional requirements. However, the previous study has focused on the building waste heat recovery and improving the cooling performance of this system, while the impact of TEM on PVBE has rarely been explored. In this work, a thermoelectric ventilated building envelope (TVBE) is presented to strengthen natural ventilation in the passive ventilated building envelope and further improving passive cooling performance. The coupled model jointly with flow heat transfer, thermoelectric process and dimensionless factor analysis is proposed to evaluate the passive cooling performance and its energy savings. First of all, based on the energy transfer process of the system, environmental parameters and structural parameters are explored from multi-index, including indoor temperature, equivalent cooling load and power generation. Furthermore, the dimensionless factor analysis is further conducted to explore the cooling performance of TVBE compared with the selected reference systems, and the energy saving potential is quantified by the energy saving rate. The study results indicate that the cooling performance and power generation of TVBE is considerably related to structural parameters (the arrangement of TEMs, window height and aspect ratio) and environmental parameters (solar radiation and ambient temperature). Of these, PVBE with three TEMs occur to maximum cooling performance and power generation at solar radiation of 900 W/m2, which indicates that PVBE have the potential of cooling and energy saving by using TEMs. Additionally, the dimensionless factor analysis results show that the dimensionless factor of temperature and dimensionless factor of equivalent cooling load of Type B reach 1.54 and 4.15 at solar radiation of 300 W/m2, which is more than 4 times higher than the cooling performance of conventional building. And then the quantization results of energy saving of PVBE and TVBE show that TVBE has more advantages than PVBE, which the energy saving rate is increased by 4.4% 13.1% and 9.0% respectively related to Type A without TEMs, Type B without TEMs and Type C without TEMs. This study will help to understand the cooling performance and power generation of TVBE." @default.
- W4385662851 created "2023-08-09" @default.
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- W4385662851 date "2023-10-01" @default.
- W4385662851 modified "2023-09-25" @default.
- W4385662851 title "Investigation of thermoelectric ventilated building envelope for simultaneously passive cooling and energy savings: Critical analysis and parametric characteristics" @default.
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- W4385662851 doi "https://doi.org/10.1016/j.enbuild.2023.113421" @default.
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