本文選題：地源熱泵系統(tǒng) + 節(jié)能性��； 參考：《湖南大學(xué)》2015年碩士論文

【摘要】：地源熱泵可利用較少量的高品位能源(如煤,油以及電等),實(shí)現(xiàn)低品位(地下淺層的能量)向高品位的轉(zhuǎn)化。相比于常規(guī)空調(diào)系統(tǒng),它提高了能源的使用率,節(jié)約了部分高品位能源,因此愈來愈受到人們的重視。目前,在我國(guó)大力倡導(dǎo)節(jié)能減排、走可持續(xù)發(fā)展道路的形勢(shì)下,地源熱泵充分展示了它節(jié)能、環(huán)保以及可持續(xù)的特性,具有很大的發(fā)展?jié)摿�。地源熱泵系統(tǒng)的性能與很多因素有關(guān),如地質(zhì)條件、設(shè)備狀況,以及后期的運(yùn)行控制策略等。所以研究地源熱泵系統(tǒng)的實(shí)際運(yùn)行特性,有助于更好地達(dá)到預(yù)期的節(jié)能效果。本文從節(jié)能的角度出發(fā),主要做了以下幾個(gè)方面的研究:1.在大量閱讀相關(guān)參考文獻(xiàn)的基礎(chǔ)上,作者詳細(xì)介紹了地源熱泵系統(tǒng)能效測(cè)評(píng)的主要理論內(nèi)容,總結(jié)出應(yīng)從機(jī)組的性能系數(shù)、設(shè)備的效率、空調(diào)水系統(tǒng)的能效比、熱泵系統(tǒng)的能效比這幾個(gè)方面對(duì)系統(tǒng)的節(jié)能性進(jìn)行判定。2.結(jié)合長(zhǎng)沙地區(qū)某地源熱泵—輻射頂板空調(diào)系統(tǒng),通過測(cè)量典型季節(jié)內(nèi)的室內(nèi)外的熱濕環(huán)境以及地源側(cè)和用戶側(cè)的供回水溫度、機(jī)組的耗電量等數(shù)據(jù)來計(jì)算該機(jī)組及系統(tǒng)的性能系數(shù)、系統(tǒng)的能效比以及泵的效率等,進(jìn)而綜合分析地源熱泵系統(tǒng)在該項(xiàng)目中是否真正達(dá)到了節(jié)能的要求。結(jié)果顯示,項(xiàng)目中運(yùn)用該地源熱泵系統(tǒng)是合理的,達(dá)到了節(jié)能的效果。3.若地源熱泵長(zhǎng)時(shí)間單獨(dú)運(yùn)行,容易產(chǎn)生一些問題,比如:地下熱不平衡性問題,機(jī)組性能下降,耗能量增多等。所以本文設(shè)定在夏季的特定時(shí)間內(nèi),進(jìn)行相應(yīng)的實(shí)驗(yàn),分析免費(fèi)供冷的特性及對(duì)系統(tǒng)節(jié)能性的影響。結(jié)果表明,實(shí)施免費(fèi)冷,可有效降低耗電量,同時(shí)在改善室內(nèi)舒適性的基礎(chǔ)上,有效減少了冬季的采暖能耗。
[Abstract]:Ground-source heat pump (GSHP) can use a small amount of high-grade energy (such as coal, oil and electricity) to realize the conversion from low-grade (energy in shallow underground layer) to high-grade. Compared with the conventional air conditioning system, it improves the utilization rate of energy and saves some high grade energy, so it is paid more and more attention to. At present, ground-source heat pump (GSHP) has shown its characteristics of energy saving, environmental protection and sustainability under the situation of energy saving and emission reduction and sustainable development. It has great potential for development. The performance of ground-source heat pump system is related to many factors, such as geological condition, equipment condition, and later operation control strategy. Therefore, the study of the actual operating characteristics of ground source heat pump system is helpful to achieve the expected energy-saving effect. This article from the point of view of energy conservation, mainly do the following aspects of research: 1. On the basis of reading a lot of related references, the author introduces in detail the main theoretical contents of the energy efficiency evaluation of ground-source heat pump system, and concludes that the performance coefficient of the unit, the efficiency of the equipment, the energy efficiency ratio of the air conditioning water system, and the energy efficiency ratio of the air conditioning water system should be taken into account. The energy efficiency ratio of the heat pump system determines the energy efficiency of the system. 2. 2. Combined with a ground source heat pump radiation roof air conditioning system in Changsha area, the indoor and outdoor heat and moisture environment and the temperature of backwater supply and return on the ground source side and the user side in typical seasons were measured. To calculate the performance coefficient of the unit and the system, the energy efficiency ratio of the system and the efficiency of the pump, etc., and to analyze comprehensively whether the ground-source heat pump system has really achieved the requirement of energy saving in the project. The results show that the application of the local source heat pump system in the project is reasonable, and the energy saving effect is achieved. 3. If the ground-source heat pump is operated alone for a long time, some problems will arise, such as the problem of underground thermal imbalance, the performance of the unit and the increase of energy consumption, etc. So this paper sets a special time in summer, carries on the corresponding experiment, analyzes the characteristic of the free cooling and its influence on the energy saving of the system. The results show that the free cooling can effectively reduce the power consumption and reduce the heating energy consumption in winter on the basis of improving indoor comfort.
【學(xué)位授予單位】：湖南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TU83

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