{"title":"日光温室北墙效应的计算机辅助评估：室内环境的多物理场建模","authors":"L. Zhao , Z. Shui , X. Liu , T. Yang , G. Duan","doi":"10.1016/j.csite.2024.105361","DOIUrl":null,"url":null,"abstract":"<div><div>The north wall (NW) of a solar greenhouse (SG), oriented away from direct sunlight, plays a crucial role in thermal insulation; however, impacts of the NW internal surface structure (ISS) on the SG indoor environment remains underexplored. Driven by in situ measurements, the temperature (<span><math><msub><mrow><mi>T</mi></mrow><mrow><mi>i</mi></mrow></msub></math></span>) and relative humidity (<span><math><mrow><mi>R</mi><msub><mrow><mi>H</mi></mrow><mrow><mi>i</mi></mrow></msub></mrow></math></span>) of a SG are evaluated for three typical NW designs: flat wall (FW), striped wall (SW) and alveolate/honeycombed wall (AW). In both sunny and cloudy scenarios, the AW setup ensures a more favourable thermal environment, well aligned with the power spectral analysis indicating enhanced thermal energy capture. The time-lagged cross correlation highlights solar radiation as the primary driver of SG internal thermal variability, with outdoor temperature being of secondary relevance. Additionally, the AW setup consistently maintains the lowest <span><math><mrow><mi>R</mi><msub><mrow><mi>H</mi></mrow><mrow><mi>i</mi></mrow></msub></mrow></math></span> on sunny days, promoting optimal conditions for plant growth, and ensures more stable humidity levels during cloudy nights. The revealed response of SG internal environments to modified NW ISS should offer some insights into SG design, particularly in optimising conditions for plant growth through modifications to the NW structure.</div></div>","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"64 ","pages":"Article 105361"},"PeriodicalIF":6.4000,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Computer-aiding evaluation of north wall effects of a solar greenhouse: Multiphysics modelling of the indoor environment\",\"authors\":\"L. Zhao , Z. Shui , X. Liu , T. Yang , G. Duan\",\"doi\":\"10.1016/j.csite.2024.105361\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The north wall (NW) of a solar greenhouse (SG), oriented away from direct sunlight, plays a crucial role in thermal insulation; however, impacts of the NW internal surface structure (ISS) on the SG indoor environment remains underexplored. Driven by in situ measurements, the temperature (<span><math><msub><mrow><mi>T</mi></mrow><mrow><mi>i</mi></mrow></msub></math></span>) and relative humidity (<span><math><mrow><mi>R</mi><msub><mrow><mi>H</mi></mrow><mrow><mi>i</mi></mrow></msub></mrow></math></span>) of a SG are evaluated for three typical NW designs: flat wall (FW), striped wall (SW) and alveolate/honeycombed wall (AW). In both sunny and cloudy scenarios, the AW setup ensures a more favourable thermal environment, well aligned with the power spectral analysis indicating enhanced thermal energy capture. The time-lagged cross correlation highlights solar radiation as the primary driver of SG internal thermal variability, with outdoor temperature being of secondary relevance. Additionally, the AW setup consistently maintains the lowest <span><math><mrow><mi>R</mi><msub><mrow><mi>H</mi></mrow><mrow><mi>i</mi></mrow></msub></mrow></math></span> on sunny days, promoting optimal conditions for plant growth, and ensures more stable humidity levels during cloudy nights. The revealed response of SG internal environments to modified NW ISS should offer some insights into SG design, particularly in optimising conditions for plant growth through modifications to the NW structure.</div></div>\",\"PeriodicalId\":9658,\"journal\":{\"name\":\"Case Studies in Thermal Engineering\",\"volume\":\"64 \",\"pages\":\"Article 105361\"},\"PeriodicalIF\":6.4000,\"publicationDate\":\"2024-11-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Case Studies in Thermal Engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2214157X24013923\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"THERMODYNAMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Case Studies in Thermal Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214157X24013923","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"THERMODYNAMICS","Score":null,"Total":0}
Computer-aiding evaluation of north wall effects of a solar greenhouse: Multiphysics modelling of the indoor environment
The north wall (NW) of a solar greenhouse (SG), oriented away from direct sunlight, plays a crucial role in thermal insulation; however, impacts of the NW internal surface structure (ISS) on the SG indoor environment remains underexplored. Driven by in situ measurements, the temperature () and relative humidity () of a SG are evaluated for three typical NW designs: flat wall (FW), striped wall (SW) and alveolate/honeycombed wall (AW). In both sunny and cloudy scenarios, the AW setup ensures a more favourable thermal environment, well aligned with the power spectral analysis indicating enhanced thermal energy capture. The time-lagged cross correlation highlights solar radiation as the primary driver of SG internal thermal variability, with outdoor temperature being of secondary relevance. Additionally, the AW setup consistently maintains the lowest on sunny days, promoting optimal conditions for plant growth, and ensures more stable humidity levels during cloudy nights. The revealed response of SG internal environments to modified NW ISS should offer some insights into SG design, particularly in optimising conditions for plant growth through modifications to the NW structure.
期刊介绍：
Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.
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