山东典型地区办公建筑地板辐射供冷系统分析  

Analysis of floor radiant cooling systems in office buildings in typical areas of Shandong Province

作　　者：崔梦颖 刘吉营 朱相源 周世玉 苗纪奎[3] CUI Mengying;LIU Jiying;ZHU Xiangyuan;ZHOU Shiyu;MIAO Jikui(School of Thermal Engineering,Shandong Jianzhu University,Jinan 250101,China;Built Environment Design and Research Institute,Shandong GRAD Group,Dezhou 253000,China;School of Architectural and Urban Planning,Shandong Jianzhu University,Jinan 250101,China)

机构地区：[1]山东建筑大学热能工程学院,山东济南250101 [2]山东格瑞德集团有限公司人工环境产业设计研究院,山东德州253000 [3]山东建筑大学建筑城规学院,山东济南250101

出　　处：《山东建筑大学学报》2023年第3期70-79,共10页Journal of Shandong Jianzhu University

基　　金：山东省重点研发计划项目(2018GSF121003);山东省自然科学基金项目(ZR2021ME199)。

摘　　要：辐射供冷系统具有较好的舒适性和节能性,尤其是地埋管直接供冷地板辐射系统,但其存在结露风险和不同地区适用性问题。选取山东省4个典型城市,构建5种不同地板辐射供冷与通风系统,分析其在办公楼建筑中的热舒适状况,以及辐射供冷系统结露风险、能耗和经济性。结果表明:建筑冷负荷较小时,地埋管直供系统具有一定优势,而在负荷较大时,通风系统可显著降低结露风险;地埋管直接供冷加新风系统,能保证室内较好的舒适性,在最小新风量运行下结露时间为83.5 h,占总供冷时间的3.8%,地埋管直接供冷系统比常规系统节能37.0%~38.1%;夜间开启水箱蓄冷的地埋管直供系统具有良好的经济效益,相比于未使用水箱蓄冷系统,可节约用电成本11.6%~15.0%,其中济南最为显著。Radiant cooling systems have good comfort and energy saving,especially those with the direct ground cooling system,but the condensation risk and applicability in different regions need to be further studied.This paper selects four typical cities in Shandong Province to construct five different floor radiant cooling and ventilation systems,and analyzes the thermal comfort in office buildings and their condensation risk,energy consumption and economy.The results show that when the building cooling load is small,the floor radiant system with direct ground cooling system has certain advantages;when the load is large,the ventilation system can reduce the condensation risk significantly.The direct ground cooling with fresh air system can ensure better indoor comfort,and the condensation time is 83.5 hours under the minimum fresh air volume,accounting for 3.8%of the total cooling time.The direct ground cooling system saves 37.0%~38.1%energy compared with conventional systems.The direct ground cooling system with the cold storage tank open at night has good economic benefits.Compared with the system without cold storage tank,it can save electricity cost by 11.6%~15.0%,among which Jinan is the most significant.

关 键 词：地埋管直供 辐射供冷 舒适性 能耗模拟 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]