本文選題：空調(diào)能耗 + 大溫差�。� 參考：《大連海洋大學》2017年碩士論文

【摘要】：20世紀以來,能源問題一直是困擾我國乃至全世界的一個問題,各國都在積極的尋找解決這一問題的辦法,節(jié)能也隨之成為整個社會研究的焦點。作為占總能耗三分之一的建筑能耗,對其節(jié)能的研究從來沒有停止。本文正是基于建筑節(jié)能的大背景下,對建筑節(jié)能中的空調(diào)節(jié)能進行研究。本文對既有空調(diào)運行中出現(xiàn)的大流量,小溫差問題,結合室內(nèi)南北向負荷差異較大等現(xiàn)象,提出對空調(diào)冷凍水的冷量進行梯級利用,實現(xiàn)空調(diào)冷凍水系統(tǒng)的大溫差來解決這一問題,從而減少空調(diào)的能耗。主要研究的內(nèi)容有以下幾點:冷凍水大溫差對冷水機組、水泵、風機盤管等能耗部件的性能影響;提出多種空調(diào)水系統(tǒng)優(yōu)化方案來達到冷凍水冷量的梯級利用,通過計算分析各種方案的能耗情況,并與既有空調(diào)的能耗進行分析對比,最終優(yōu)化出一種最佳的大溫差水系統(tǒng)方案。本文得出的主要結論有:在使用大溫差的情況下,冷凍水泵的軸功率大幅下降,節(jié)約能耗;但是冷凍水的溫差變大,末端設備風機盤管的制冷能力和除濕能力隨著冷凍水溫度的升高而降低,隨著供回水溫差的增大而降低;而對于冷水機組,在供水溫度不變的情況下,溫差增大對于冷水機組的單位制冷量能耗的影響不大。設計優(yōu)化出一種新型空調(diào)大溫差水系統(tǒng),使南向室內(nèi)的回水作為北向室內(nèi)的供水,實現(xiàn)了冷凍水冷量的梯級利用。通過對優(yōu)化系統(tǒng)能耗的定量分析,發(fā)現(xiàn)其節(jié)能量能達到18.48%。新型空調(diào)大溫差水系統(tǒng)在實際工程中具有節(jié)能效果和應用前景。
[Abstract]:Since twentieth Century, energy problem has been a problem that plagued our country and even the whole world. All countries are actively looking for ways to solve this problem. Energy saving has also become the focus of the whole society. As a building energy consumption of 1/3 of total energy consumption, the research on energy saving has never stopped. This paper is based on building energy conservation. Under the big background, this paper studies the energy saving of air conditioning in building energy saving. In this paper, the large flow, small temperature difference in the existing air conditioning operation and the large difference in the north and South load of the indoor air are put forward in order to make the cascade utilization of the cooling capacity of the refrigerated water of the air conditioner and realize the large temperature difference between the cold and cold water system of the air conditioning to solve this problem and thus reduce the problem. The main contents of the research are as follows: the effects of the large temperature difference of the frozen water on the performance of the energy consumption components such as the chiller, the pump, the fan coil and so on, and the optimization of various air conditioning water systems to achieve the cascade utilization of the refrigerated water cooling capacity, and to analyze the energy consumption of various schemes by calculating and analyzing the energy consumption of the existing air conditioners. The main conclusions are as follows: in the case of large temperature difference, the shaft power of the frozen water pump decreases greatly and saves energy, but the temperature difference of the frozen water becomes larger and the cooling capacity and dehumidification ability of the fan coil in the terminal equipment increase with the temperature of the frozen water. The decrease is reduced with the increase of the temperature difference between the water supply and the water supply, and for the cold water chiller, when the water supply temperature is constant, the temperature difference has little effect on the energy consumption of the unit cooling capacity of the chiller. A new type of air conditioning large temperature difference water system is designed and optimized, and the backwater in the South chamber is used as the water supply in the North chamber, and the freezing water cooling is realized. According to the quantitative analysis of the energy consumption of the optimized system, it is found that the energy of the new type air conditioning system of 18.48%. has the energy saving effect and the application prospect in the actual project.
【學位授予單位】：大連海洋大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TU831

【引證文獻】

相關期刊論文 前1條

1 高興;高元;朱江;;建能專業(yè)本科畢業(yè)設計創(chuàng)新改革與實踐[J];價值工程;2018年08期

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本文編號：2065378