两种轻型木结构建筑在不同运行模式下的湿热性能比较

Wanqing Xu, Yucong Xue, Jiang Lu, Yifan Fan, Xiaoyu Luo
{"title":"两种轻型木结构建筑在不同运行模式下的湿热性能比较","authors":"Wanqing Xu, Yucong Xue, Jiang Lu, Yifan Fan, Xiaoyu Luo","doi":"10.1631/jzus.A2200536","DOIUrl":null,"url":null,"abstract":"目 的 夏热冬冷地区气候全年高湿且居民采用间歇用能辅以通风的方式调节环境, 由于建筑室内外环境条件复杂多变, 轻型木结构建筑在该区的适用性尚有待研究. 本文旨在研究用能季典型气象日及相应间歇用能工况下的室内环境及围护结构热湿传递特征, 并探究在不同条件下围护结构不同朝向及不同位置热湿传递的差异, 明确墙体冷凝霉变的关键位置, 为工程运用提供参考. 创新点 1. 建立轻型木结构建筑足尺模型, 并在墙体不同位置设置温湿度监测点进行实验与比较; 2. 以夏热冬冷地区间隙用能工况作为实验条件, 研究更加贴近真实情况. 方 法 1. 通过文献调研梳理夏热冬冷地区居民用能及通风习惯, 选择典型间歇工况作为实验条件. 2. 运用温湿度自记仪、 传感器对室内及墙体内部温湿度进行监测, 通过对比不同时刻、 位置的温湿度差异, 总结轻型木结构建筑室内环境及围护结构材料在典型工况下的热湿特征. 结 论 1. 一号建筑的总传热阻略高于二号建筑, 总传湿阻大大高于二号建筑, 其外墙对温湿度的变化具有更强的抵抗能力, 在室内外环境不理想时能较好地保持与调节室内环境; 而二号建筑在间歇用能和通风时相应较快. 2. 岩棉层两侧的材料容易出现相对湿度较高的状况, 夏季靠室内侧的石膏板具有高湿风险, 而冬季靠室外侧的定向刨花板(OSB(层具有高湿风险. Light-framed timber structure (LTS) buildings have been highly valued in recent years due to their low-carbon characteristics. However, the applicability of the building envelope is closely related to indoor and outdoor conditions. The hot summer and cold winter (HSCW) climate zone in China has high humidity and great temperature variation throughout the year, resulting in distinct outdoor environments in different seasons. The indoor environment is greatly affected by energy-consumption patterns and window-opening habits, which largely depend upon the regulation operations of occupants. All these interrelated factors lead to extremely complex boundary conditions on each side of the building envelope. Whether the structures of LTS buildings are applicable in this climate zone, therefore, needs to be carefully considered. In this study, two LTS buildings with different envelopes were established in Haining, China, situated in the HSCW climate zone, and selected as the study objects. Different operation modes were adopted to create a variety of indoor environments. Under each condition, the processes of heat and moisture transfer within the building envelopes and the indoor environment were monitored and compared. The comparison indicated that the building envelope with high moisture storage and insulation ability maintained a relatively stable indoor environment, especially when the environment changed abruptly. Conversely, if the outdoor environment was equable (e.g., relative humidity within the range of 30%–60%) or intermittent energy consumption modes were adopted, the building envelope with a low thermal inertia index and weak moisture-buffering ability performed better because it enabled a faster response of the indoor environment to air conditioning. Moreover, a high risk of moisture accumulation between the thermal insulation layer and other materials with a large water vapour transfer resistance factor was also identified, suggesting a higher requirement for the vapour insulation of the envelopes of LTS buildings.","PeriodicalId":508023,"journal":{"name":"Journal of Zhejiang University-SCIENCE A","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Comparison of the hygrothermal performance of two light-framed timber structure buildings under different operation modes\",\"authors\":\"Wanqing Xu, Yucong Xue, Jiang Lu, Yifan Fan, Xiaoyu Luo\",\"doi\":\"10.1631/jzus.A2200536\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"目 的 夏热冬冷地区气候全年高湿且居民采用间歇用能辅以通风的方式调节环境, 由于建筑室内外环境条件复杂多变, 轻型木结构建筑在该区的适用性尚有待研究. 本文旨在研究用能季典型气象日及相应间歇用能工况下的室内环境及围护结构热湿传递特征, 并探究在不同条件下围护结构不同朝向及不同位置热湿传递的差异, 明确墙体冷凝霉变的关键位置, 为工程运用提供参考. 创新点 1. 建立轻型木结构建筑足尺模型, 并在墙体不同位置设置温湿度监测点进行实验与比较; 2. 以夏热冬冷地区间隙用能工况作为实验条件, 研究更加贴近真实情况. 方 法 1. 通过文献调研梳理夏热冬冷地区居民用能及通风习惯, 选择典型间歇工况作为实验条件. 2. 运用温湿度自记仪、 传感器对室内及墙体内部温湿度进行监测, 通过对比不同时刻、 位置的温湿度差异, 总结轻型木结构建筑室内环境及围护结构材料在典型工况下的热湿特征. 结 论 1. 一号建筑的总传热阻略高于二号建筑, 总传湿阻大大高于二号建筑, 其外墙对温湿度的变化具有更强的抵抗能力, 在室内外环境不理想时能较好地保持与调节室内环境; 而二号建筑在间歇用能和通风时相应较快. 2. 岩棉层两侧的材料容易出现相对湿度较高的状况, 夏季靠室内侧的石膏板具有高湿风险, 而冬季靠室外侧的定向刨花板(OSB(层具有高湿风险. Light-framed timber structure (LTS) buildings have been highly valued in recent years due to their low-carbon characteristics. However, the applicability of the building envelope is closely related to indoor and outdoor conditions. The hot summer and cold winter (HSCW) climate zone in China has high humidity and great temperature variation throughout the year, resulting in distinct outdoor environments in different seasons. The indoor environment is greatly affected by energy-consumption patterns and window-opening habits, which largely depend upon the regulation operations of occupants. All these interrelated factors lead to extremely complex boundary conditions on each side of the building envelope. Whether the structures of LTS buildings are applicable in this climate zone, therefore, needs to be carefully considered. In this study, two LTS buildings with different envelopes were established in Haining, China, situated in the HSCW climate zone, and selected as the study objects. Different operation modes were adopted to create a variety of indoor environments. Under each condition, the processes of heat and moisture transfer within the building envelopes and the indoor environment were monitored and compared. The comparison indicated that the building envelope with high moisture storage and insulation ability maintained a relatively stable indoor environment, especially when the environment changed abruptly. Conversely, if the outdoor environment was equable (e.g., relative humidity within the range of 30%–60%) or intermittent energy consumption modes were adopted, the building envelope with a low thermal inertia index and weak moisture-buffering ability performed better because it enabled a faster response of the indoor environment to air conditioning. Moreover, a high risk of moisture accumulation between the thermal insulation layer and other materials with a large water vapour transfer resistance factor was also identified, suggesting a higher requirement for the vapour insulation of the envelopes of LTS buildings.\",\"PeriodicalId\":508023,\"journal\":{\"name\":\"Journal of Zhejiang University-SCIENCE A\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Zhejiang University-SCIENCE A\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1631/jzus.A2200536\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Zhejiang University-SCIENCE A","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1631/jzus.A2200536","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

目 的 夏热冬冷地区气候全年高湿且居民采用间歇用能辅以通风的方式调节环境, 由于建筑室内外环境条件复杂多变, 轻型木结构建筑在该区的适用性尚有待研究.本文旨在研究用季典型气象日及相应间歇用能工况下的室内环境及围护结构热湿传递特征, 并探究在不同条件下围护结构不同朝向及不同位置热湿传递的差异, 明确墙体冷凝霉变的关键位置, 为工程运用提供参考。创新点 1. 建立轻型木结构建筑足尺模型, 并在墙体不同位置设置温湿度监测点进行实验与比较; 2. 以夏热冬冷地区间隙用能工况作为实验条件, 研究更加贴近真实情况。方 1. 通过文献调研梳理夏热冬冷地区居民用能及通风习惯,选择典型间歇工况作为实验条件。2. 运用温湿度自记仪、 传感器对室内及墙体内部温湿度进行监测, 通过对比不同时刻、 位置的温湿度差异, 总结轻型木结构建筑室内环境及围护结构材料在典型工况下的热湿特征。结 论 1. 一号建筑的总传热阻略高于二号建筑, 总传热湿阻大大高于二号建筑, 其外墙对温湿度的变化具有更强的抵抗能力, 在室内外环境不理想时能较好地保持与调节室内环境; 而二号建筑在间歇用能和通风时相应较快。2. 岩棉层两侧的材料容易出现相对湿度较高的状况, 夏季靠室内侧的石膏板具有高湿风险, 而冬季靠室外侧的定向刨花板(osb(层具有高湿风险.近年来,轻型木结构(LTS)建筑因其低碳特性而备受推崇。然而,建筑围护结构的适用性与室内外条件密切相关。中国地处夏热冬冷(HSCW)气候区,全年湿度大、温差大,室外环境四季分明。室内环境受能源消耗模式和开窗习惯的影响很大,而这在很大程度上取决于居住者的调节操作。所有这些相互关联的因素都会导致建筑围护结构每一侧的边界条件极其复杂。因此,需要仔细考虑 LTS 建筑的结构是否适用于该气候区。本研究在中国海宁(位于 HSCW 气候区)建立了两座不同围护结构的 LTS 建筑作为研究对象。采用不同的运行模式来创造各种室内环境。在每种条件下,对建筑围护结构和室内环境的传热和传湿过程进行了监测和比较。比较结果表明,储湿和隔热能力强的建筑围护结构能保持相对稳定的室内环境,尤其是当环境发生突然变化时。相反,如果室外环境比较稳定(如相对湿度在 30%-60% 范围内),或采用间歇性能源消耗模式,热惯性指数低、湿气缓冲能力弱的建筑围护结构表现更好,因为它能使室内环境对空调做出更快的反应。此外,研究还发现,隔热层与其他水蒸气传导阻力系数较大的材料之间积聚湿气的风险很高,这表明对 LTS 建筑围护结构的隔汽要求更高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Comparison of the hygrothermal performance of two light-framed timber structure buildings under different operation modes
目 的 夏热冬冷地区气候全年高湿且居民采用间歇用能辅以通风的方式调节环境, 由于建筑室内外环境条件复杂多变, 轻型木结构建筑在该区的适用性尚有待研究. 本文旨在研究用能季典型气象日及相应间歇用能工况下的室内环境及围护结构热湿传递特征, 并探究在不同条件下围护结构不同朝向及不同位置热湿传递的差异, 明确墙体冷凝霉变的关键位置, 为工程运用提供参考. 创新点 1. 建立轻型木结构建筑足尺模型, 并在墙体不同位置设置温湿度监测点进行实验与比较; 2. 以夏热冬冷地区间隙用能工况作为实验条件, 研究更加贴近真实情况. 方 法 1. 通过文献调研梳理夏热冬冷地区居民用能及通风习惯, 选择典型间歇工况作为实验条件. 2. 运用温湿度自记仪、 传感器对室内及墙体内部温湿度进行监测, 通过对比不同时刻、 位置的温湿度差异, 总结轻型木结构建筑室内环境及围护结构材料在典型工况下的热湿特征. 结 论 1. 一号建筑的总传热阻略高于二号建筑, 总传湿阻大大高于二号建筑, 其外墙对温湿度的变化具有更强的抵抗能力, 在室内外环境不理想时能较好地保持与调节室内环境; 而二号建筑在间歇用能和通风时相应较快. 2. 岩棉层两侧的材料容易出现相对湿度较高的状况, 夏季靠室内侧的石膏板具有高湿风险, 而冬季靠室外侧的定向刨花板(OSB(层具有高湿风险. Light-framed timber structure (LTS) buildings have been highly valued in recent years due to their low-carbon characteristics. However, the applicability of the building envelope is closely related to indoor and outdoor conditions. The hot summer and cold winter (HSCW) climate zone in China has high humidity and great temperature variation throughout the year, resulting in distinct outdoor environments in different seasons. The indoor environment is greatly affected by energy-consumption patterns and window-opening habits, which largely depend upon the regulation operations of occupants. All these interrelated factors lead to extremely complex boundary conditions on each side of the building envelope. Whether the structures of LTS buildings are applicable in this climate zone, therefore, needs to be carefully considered. In this study, two LTS buildings with different envelopes were established in Haining, China, situated in the HSCW climate zone, and selected as the study objects. Different operation modes were adopted to create a variety of indoor environments. Under each condition, the processes of heat and moisture transfer within the building envelopes and the indoor environment were monitored and compared. The comparison indicated that the building envelope with high moisture storage and insulation ability maintained a relatively stable indoor environment, especially when the environment changed abruptly. Conversely, if the outdoor environment was equable (e.g., relative humidity within the range of 30%–60%) or intermittent energy consumption modes were adopted, the building envelope with a low thermal inertia index and weak moisture-buffering ability performed better because it enabled a faster response of the indoor environment to air conditioning. Moreover, a high risk of moisture accumulation between the thermal insulation layer and other materials with a large water vapour transfer resistance factor was also identified, suggesting a higher requirement for the vapour insulation of the envelopes of LTS buildings.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信