基于生命周期的土壤源热泵系统CO_2减排效果评价  

Evaluation of CO_2 Reductions Soil Source Heat Pump System based on Life Cycle

作　　者：杨从辉[1] 袁艳平[1] 雷波[1] 曹晓玲[1] 

机构地区：[1]西南交通大学机械工程学院

出　　处：《建筑热能通风空调》2011年第1期23-26,共4页Building Energy & Environment

基　　金：中国博士后面上资助项目(20080431241);四川省青年科技基金项目(09ZQ026-076);成都市"十一五"科技发展规划重大专项建筑节能分项;北京市重点实验室开放课题(2008K09);西南交通大学科学研究基金项目(2008B17)

摘　　要：基于生命周期理论,分别对土壤源热泵系统和溴化锂冷水机组/集中供热系统的CO2排放量进行计算,采用CO2回收期和减排量两个指标对土壤源热泵系统进行减排效果评价。计算结果表明,在建造阶段,管井钻探、热泵机组、聚乙烯管和置换土壤的CO2排放量分别占CO2排放总量的47%、31%、17%和5%。管井钻探过程在CO2排放总量中占主要地位,它具有减少CO2排放量的最大潜力。建造阶段土壤源热泵系统比溴化锂冷水机组/集中供热系统增加CO2排放量为224t,运行阶段土壤源热泵系统减少CO2排放量为237t/年。在整个生命周期(20年)内,土壤源热泵系统的CO2回收期为0.95年,减排量为4745t。Based on the life cycle theory, respectively calculate the CO2 emission reductions of soil source heat pump system and lithium bromide chiller units, and adopt the indexes of CO2 payback period and reductions to evaluate the reductions effects of soil source heat pump system. The results predict that, in the period of construction the percentage of CO2 emission reductions of tube well drilling, heat pump units, polyethylene pipes and replacement soil is 47%, 31%, 17% and 5% respectively. Tube well drilling takes the most proportion of CO2 emission reductions, as a matter of what, it has the biggest capability to reduce the CO2 emission reductions. In the period of construction the soil source heat pump system produces 224t CO2 emission reductions more than the lithium bromide chiller units, and in the period of operation it produces 237t less than the lithium bromide chiller units. Within the entire life cycle （20 years）, CO2 paybaek period of soil source heat pump system is 0.95 years, and emission reductions is 4745t.

关 键 词：生命周期 土壤源热泵 CO2 回收期 减排量 

分 类 号：TU831.6[建筑科学—供热、供燃气、通风及空调工程]