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            暖通空調雜志社>期刊目次>2017年>第12期

            地埋管地源熱泵系統運行能耗分析

            Operation energy consumption of ground-source heat pump systems

            徐衛榮 夏卓平 邱建中 陳 震
            江蘇省建筑設計研究院有限公司

            摘要:

            建立了地埋管地源熱泵系統運行的數學模型,以某綜合樓為例,分析了空調水溫、地埋管長度、土壤初始溫度、土壤導熱系數對系統運行能耗的影響,以及地埋管運行對土壤溫度的影響。結果表明:空調冷水溫度每提高1 ℃,制冷耗電量約減小3.5%;空調熱水溫度每提高1 ℃,供熱耗電量約增加2.3%;地埋管長度每增加10%,制冷耗電量約減小0.43%,供熱耗電量約減小0.56%;土壤初始溫度每提高1 ℃,制冷耗電量約增加1.9%,供熱耗電量約減小2.4%;土壤導熱系數每增加0.1 W/(m·K),制冷耗電量約減小0.22%,供熱耗電量約減小0.20%。

            關鍵詞:地埋管地源熱泵,運行能耗,空調水溫,地埋管長度,土壤溫度,導熱系數,耗電量

            Abstract:

            Establishes a mathematical model for ground-source heat pump systems. Taking a complex building as the example, analyses the influences of air conditioning water temperature, length of buried pipes, initial soil temperature and soil thermal conductivity on the operation energy consumption, and the influence of buried pipe operation on the soil temperature. The results show that increasing 1 of the chilled water temperature could reduce about 3.5% of the cooling electricity consumption. Increasing 1 of the hot water temperature could increase about 2.3% of the heating electricity consumption. Increasing 10% of the length of buried pipes could reduce about 0.43% of the cooling electricity consumption and 0.56% of the heating electricity consumption. Increasing 1 of the initial soil temperature could increase about 1.9% of the cooling electricity consumption and reduce about 2.4% of the heating electricity consumption. Increasing 0.1 W/(m·K) of the soil thermal conductivity could reduce about 0.22% of the cooling electricity consumption and 0.20% of the heating electricity consumption.

            Keywords:ground-sourceheatpump,operationenergyconsumption,airconditioningwatertemperature,lengthofburiedpipe,soiltemperature,thermalconductivity,electricityconsumption

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