制冷与空调(四川)
製冷與空調(四川)
제랭여공조(사천)
REFRIGERATION & AIR-CONDITION
2013年
6期
535-539
,共5页
夏热冬冷地区%土壤源热泵%大地蓄能失调%温度限值
夏熱鼕冷地區%土壤源熱泵%大地蓄能失調%溫度限值
하열동랭지구%토양원열빙%대지축능실조%온도한치
hot summer and cold winter zone%ground source heat pump%ground energy storage imbalance%limit temperature
夏热冬冷地区土壤源热泵在全寿命周期运行过程中,冬夏季土壤吸放热不相等,可能导致大地蓄能失调进而引起系统运行效率下降。而目前关于土壤源热泵系统大地蓄能失调的判定仅停留在冬、夏季负荷比例上的估算,还没有形成一个评价大地蓄能失调的理论计算方法。针对夏热冬冷地区土壤源热泵全寿命周期运行过程中的大地蓄能失调评价方法,提出了以运行费用现值比较为评价参数的土壤源热泵系统的岩土温度限值的理论以及蓄能失调判断依据。
夏熱鼕冷地區土壤源熱泵在全壽命週期運行過程中,鼕夏季土壤吸放熱不相等,可能導緻大地蓄能失調進而引起繫統運行效率下降。而目前關于土壤源熱泵繫統大地蓄能失調的判定僅停留在鼕、夏季負荷比例上的估算,還沒有形成一箇評價大地蓄能失調的理論計算方法。針對夏熱鼕冷地區土壤源熱泵全壽命週期運行過程中的大地蓄能失調評價方法,提齣瞭以運行費用現值比較為評價參數的土壤源熱泵繫統的巖土溫度限值的理論以及蓄能失調判斷依據。
하열동랭지구토양원열빙재전수명주기운행과정중,동하계토양흡방열불상등,가능도치대지축능실조진이인기계통운행효솔하강。이목전관우토양원열빙계통대지축능실조적판정부정류재동、하계부하비례상적고산,환몰유형성일개평개대지축능실조적이론계산방법。침대하열동랭지구토양원열빙전수명주기운행과정중적대지축능실조평개방법,제출료이운행비용현치비교위평개삼수적토양원열빙계통적암토온도한치적이론이급축능실조판단의거。
The ground source heat pumps operated in hot summer and cold winter area absorb heat from soil in winter and pump heat into source in summer, the heat the GSHP absorb is not equal to the heat the system release, which will lead to storage disorders of soil and decrease the efficiency of the GSHP. Recently, the ground energy storage imbalance of the ground source heat pump systems is just judged by the estimate of the cooling load in summer and the heating load in winter rather than any theoretical calculation methods. This paper aimed to propose a principle and theoretical method to judge the ground energy storage imbalance of the ground source heat pump systems and calculate the limit temperature of the ground which based on the comparison of the present value of operating costs.