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基于Exergy研究的地源熱泵降溫系統(tǒng)性能分析
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Performance Analysis on Ground Source Heat Pump Cooling System Based on Exergy Research
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    摘要:

    以地下水式地源熱泵系統(tǒng)在農(nóng)業(yè)溫室和辦公樓中的夏季降溫研究為例，歸納出地源熱泵降溫系統(tǒng)的能量利用質(zhì)量模型——Exergy分析模型，以Exergy損失Edest和Exergy效率ε為評(píng)價(jià)指標(biāo)對(duì)降溫工況下系統(tǒng)及其組成單元的熱力學(xué)性能進(jìn)行分析和探討。分析結(jié)果表明：蒸發(fā)器的Exergy效率達(dá)到92.5%,，具有較高的能源利用質(zhì)量；冷凝器的Exergy效率相對(duì)較小,，Exergy損失較大,，不可逆性大,；總體來看,，系統(tǒng)的Exergy效率較低,。與此同時(shí)，試驗(yàn)期間地源熱泵機(jī)組和系統(tǒng)的制冷性能系數(shù)分別為

    Abstract:

    5.90和3.56,。The Exergy analytical method was adopted to analyze the performance of groundwater source heat pump (GSHP) system by applying Exergy destruction Edest and Exergy efficiency ε. Related Exergy analytical models have been put forward according to the cooling experiment carried out in an office building and a Chinese solar greenhouse in the summertime of 2007. Analytical results showed that the evaporator has a higher Exergy efficiency than other parts of the system, which reached 95%. However, the Exergy efficiency of condenser and total GSHP system was not very satisfying. Meanwhile, the coefficient of performance of GSHP unit and total system has reached 5.90 and 3.56 respectively. 

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柴立龍,馬承偉,袁小艷,張義,余飛.基于Exergy研究的地源熱泵降溫系統(tǒng)性能分析[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2009,40(2):146-150. Performance Analysis on Ground Source Heat Pump Cooling System Based on Exergy Research[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(2):146-150.

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