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  • 主管单位:
  • 上海市教育委员会
  • 主办单位:
  • 上海理工大学
  • 主  编:
  • 庄松林
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  • 邮政编码:
  • 200093
  • 联系电话:
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  • xbzrb@usst.edu.cn
  • 国际标准刊号:
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  • 国内统一刊号:
  • 31-1739/T
  • 邮发代号:
  • 4-401
  • 单  价:
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  • 定  价:
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邵必林,杜星璇,任秦龙,徐洪涛,罗祝清.夏热冬冷地区绿色建筑外墙节能特性的LBM模拟及效益分析[J].上海理工大学学报,2019,41(5):469-478.
夏热冬冷地区绿色建筑外墙节能特性的LBM模拟及效益分析
Numerical Study of the Energy Saving Characteristic of Green Building's Insulated External Walls in Hot Summer and Cold Winter Areas Using LBM and the Benefit Analysis
投稿时间:2018-06-05  
DOI:10.13255/j.cnki.jusst.2019.05.010
中文关键词:  绿色建筑  保温外墙  增量综合效益  瞬态共轭传热  格子玻尔兹曼法
英文关键词:green building  insulated external wall  incremental comprehensive benefit  transient conjugate heat transfer  lattice Boltzmann method
基金项目:国家自然科学基金资助项目(51776145);住房与城乡建设部软科学项目(2016-R3-014);上海市科技创新行动计划(18160743600)
作者单位
邵必林 西安建筑科技大学 管理学院, 西安 710055 
杜星璇 西安建筑科技大学 管理学院, 西安 710055 
任秦龙 西安交通大学 能源与动力工程学院, 西安 710049 
徐洪涛 上海理工大学 能源与动力工程学院, 上海 200093 
罗祝清 上海理工大学 能源与动力工程学院, 上海 200093 
摘要点击次数: 121
全文下载次数: 237
中文摘要:
      针对夏热冬冷地区绿色建筑中外墙的典型保温方式和常见保温材料,采用多松弛时间格子玻尔兹曼方法建立瞬态共轭传热数值模型,分析间歇耗能条件下墙体的瞬态热传导过程,进而得出不同类型保温外墙的节能特性。在此基础上,发展保温墙体增量综合效益的计算方法,分析绿色建筑外墙的增量成本及其增量效益,进而建立外墙增量综合效益评价模型,获取保温外墙最优设计方案。研究数据表明,采取内保温方式的外墙在该地区具有最佳的节能特性,尽管采用不同保温方式和保温材料的外墙均具有一定的节能特性,然而,在其全生命周期内,使用外保温方式以及增量成本较高的保温材料的墙体的增量综合效益出现负值,因此,不适宜在工程实践中应用。此外,研究结果显示,尽管增加保温层厚度可以在一定程度上强化外墙的保温性能,然而,增加保温层厚度会产生额外的增量成本,因此,绿色建筑项目实践中应综合考虑墙体节能特性及其增量成本进而选取适宜的保温层厚度,从而实现其全生命周期内增量综合效益的最大化。
英文摘要:
      To investigate the green buidling's typical insulated external walls with common insulating materials in hot summer and cold winter areas, a multiple-relaxation-time lattice Boltzmann method (MRT-LBM) was developed for solving the conjugate heat transfer problem. The transient heat transfer process in the wall was analyzed under an intermittent energy consumption condition, and the energy saving characteristics of different insulated external walls were studied. Based on this, a computational approach for the incremental comprehensive benefit of the insulated wall was developed to analyze its incremental cost and incremental benefit. Under this circumstance, an evaluation model for the incremental comprehensive benefit was constructed to obtain the optimum design of insultated external walls. The results indicate that the walls with interior insulating layer have the best energy saving characteristic in this specific region. The whole lifetime incremental comprehensive benefit of the walls with exterior insulating layer or using expensive insulating materials is negative even though they could still save energy during the energy consumption period. Due to this reason, the walls with exterior insulating layer and expensive insulating materials should not be used in the real engineering applications. In addition, it is found that the energy saving amount of insulated external walls increases with the increment of the insulating layer thickness. However, the increased insulating layer could generate extra incremental cost. Hence, the optimum insulating layer thickness of external walls should be determined with fully considering their energy saving characteristic and incremental cost to achive a maximum incremental comprehensive benefit during the whole lifetime.
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