Ruian Tian , Erlin Meng , Yue Shu, Jun Li, Bo Zhou, Haiqian Zhao
{"title":"新型光伏屋顶热性能实验研究","authors":"Ruian Tian , Erlin Meng , Yue Shu, Jun Li, Bo Zhou, Haiqian Zhao","doi":"10.1016/j.icheatmasstransfer.2024.107768","DOIUrl":null,"url":null,"abstract":"<div><p>The high temperature of PV panels during power generation not only reduces their efficiency but also leads to increased heat transfer to the room. The impact of using PV panels on the indoor thermal environment should not be overlooked. A novel roof structure is proposed in this paper, which is composed of PV panels, phase change materials (PCMs) and ventilation layer from top to bottom. The thermal performance of PV-PCM- ventilation roof room is compared with that of PV roof room and PV-PCM roof room under active and passive conditions respectively. Results show that under passive conditions: Compared to PV roof, the PV-PCM-ventilation roof internal surface temperature fluctuation decreases by 44.12%, the correlation coefficient between the back surface temperature of PV panel and outdoor air temperature decreases from 0.79 to 0.69, and the correlation coefficient with solar radiation decreases from 0.66 to 0.60. Compared to PV-PCM roof, the back surface temperature of the PV panel decreases by 3.31 °C during the day. Under active conditions, when the set temperature is 26 °C and 28 °C, the energy consumption of the PV-PCM-ventilation roof room decreases by 15.61% compared to the PV roof room. In summary, the new roof demonstrates good insulation and energy-saving performance.</p></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":null,"pages":null},"PeriodicalIF":6.4000,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Experimental study of the thermal performance of a new type of PV roof\",\"authors\":\"Ruian Tian , Erlin Meng , Yue Shu, Jun Li, Bo Zhou, Haiqian Zhao\",\"doi\":\"10.1016/j.icheatmasstransfer.2024.107768\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The high temperature of PV panels during power generation not only reduces their efficiency but also leads to increased heat transfer to the room. The impact of using PV panels on the indoor thermal environment should not be overlooked. A novel roof structure is proposed in this paper, which is composed of PV panels, phase change materials (PCMs) and ventilation layer from top to bottom. The thermal performance of PV-PCM- ventilation roof room is compared with that of PV roof room and PV-PCM roof room under active and passive conditions respectively. Results show that under passive conditions: Compared to PV roof, the PV-PCM-ventilation roof internal surface temperature fluctuation decreases by 44.12%, the correlation coefficient between the back surface temperature of PV panel and outdoor air temperature decreases from 0.79 to 0.69, and the correlation coefficient with solar radiation decreases from 0.66 to 0.60. Compared to PV-PCM roof, the back surface temperature of the PV panel decreases by 3.31 °C during the day. Under active conditions, when the set temperature is 26 °C and 28 °C, the energy consumption of the PV-PCM-ventilation roof room decreases by 15.61% compared to the PV roof room. In summary, the new roof demonstrates good insulation and energy-saving performance.</p></div>\",\"PeriodicalId\":332,\"journal\":{\"name\":\"International Communications in Heat and Mass Transfer\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":6.4000,\"publicationDate\":\"2024-07-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Communications in Heat and Mass Transfer\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S073519332400530X\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MECHANICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Communications in Heat and Mass Transfer","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S073519332400530X","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MECHANICS","Score":null,"Total":0}
Experimental study of the thermal performance of a new type of PV roof
The high temperature of PV panels during power generation not only reduces their efficiency but also leads to increased heat transfer to the room. The impact of using PV panels on the indoor thermal environment should not be overlooked. A novel roof structure is proposed in this paper, which is composed of PV panels, phase change materials (PCMs) and ventilation layer from top to bottom. The thermal performance of PV-PCM- ventilation roof room is compared with that of PV roof room and PV-PCM roof room under active and passive conditions respectively. Results show that under passive conditions: Compared to PV roof, the PV-PCM-ventilation roof internal surface temperature fluctuation decreases by 44.12%, the correlation coefficient between the back surface temperature of PV panel and outdoor air temperature decreases from 0.79 to 0.69, and the correlation coefficient with solar radiation decreases from 0.66 to 0.60. Compared to PV-PCM roof, the back surface temperature of the PV panel decreases by 3.31 °C during the day. Under active conditions, when the set temperature is 26 °C and 28 °C, the energy consumption of the PV-PCM-ventilation roof room decreases by 15.61% compared to the PV roof room. In summary, the new roof demonstrates good insulation and energy-saving performance.
期刊介绍：
International Communications in Heat and Mass Transfer serves as a world forum for the rapid dissemination of new ideas, new measurement techniques, preliminary findings of ongoing investigations, discussions, and criticisms in the field of heat and mass transfer. Two types of manuscript will be considered for publication: communications (short reports of new work or discussions of work which has already been published) and summaries (abstracts of reports, theses or manuscripts which are too long for publication in full). Together with its companion publication, International Journal of Heat and Mass Transfer, with which it shares the same Board of Editors, this journal is read by research workers and engineers throughout the world.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
