建筑节能
建築節能
건축절능
CONSTRUCTION CONSERVES ENERGY
2015年
1期
1-5,9
,共6页
贾智强%李科群%孙浩琳%汪春宇%李续
賈智彊%李科群%孫浩琳%汪春宇%李續
가지강%리과군%손호림%왕춘우%리속
土壤平均温度%换热效率%温升幅度%热不平衡率%数值分析
土壤平均溫度%換熱效率%溫升幅度%熱不平衡率%數值分析
토양평균온도%환열효솔%온승폭도%열불평형솔%수치분석
average soil temperature%heat exchange efficiency%the rising rate of temperature%thermal imbalance ratio%numerical simulation
结合工程实例，用完全均摊恒定热流法和分段均摊恒定热流法分别分析了不同热不平衡率下，埋地管群换热器运行25年内土壤的平均温度变化；提出了评价长期运行的埋地管群换热器的两大指标：换热效率、温升幅度；并用这两大指标分析出此工程的合理热不平衡率区间为0.05～0.10，可为以后工程设计提供参考。
結閤工程實例，用完全均攤恆定熱流法和分段均攤恆定熱流法分彆分析瞭不同熱不平衡率下，埋地管群換熱器運行25年內土壤的平均溫度變化；提齣瞭評價長期運行的埋地管群換熱器的兩大指標：換熱效率、溫升幅度；併用這兩大指標分析齣此工程的閤理熱不平衡率區間為0.05～0.10，可為以後工程設計提供參攷。
결합공정실례，용완전균탄항정열류법화분단균탄항정열류법분별분석료불동열불평형솔하，매지관군환열기운행25년내토양적평균온도변화；제출료평개장기운행적매지관군환열기적량대지표：환열효솔、온승폭도；병용저량대지표분석출차공정적합리열불평형솔구간위0.05～0.10，가위이후공정설계제공삼고。
Combined with engineering cases, based on different thermal imbalance ratio, the complete average constant heat flux method and the section average constant heat flux method were proposed to study the change of average soil temperature in 25 years respectively. Two indexes were proposed, includ-ing the heat exchange efficiency and the rising rate of temperature, which are used to evaluate the buried pipelines heat exchangers running for long time. Furthermore, the two indexes were used to analyze the rea-sonable interval of thermal imbalance ratio, and the range of 0.05~0.10 was obtained. The conclusion could provide references for the later engineering design.
