多功能空氣源熱泵空調熱水機組性能實驗研究
發(fā)布時間:2018-04-11 10:48
本文選題:多功能熱泵 + 空調。 參考:《太原理工大學》2013年碩士論文
【摘要】:夏季家庭、辦公場所和公共場所都需要制冷和生活用熱水。從能量利用的角度來講,空調能實現(xiàn)制冷。由于空調裝置在夏季制冷時,將冷凝熱直接排放到了環(huán)境中,既浪費了能源,也造成了城市的熱污染,本文針對這一問題設計了一種新型的多功能空氣源熱泵空調熱水系統(tǒng),對系統(tǒng)中的壓縮機、室內換熱器、室外換熱器、冷凝器和節(jié)流機構等主要部件進行了詳細的熱力設計和設備選型計算,根據(jù)計算結果和系統(tǒng)圖搭建了相應的實驗裝置。該系統(tǒng)有三種運行模式,分別是單獨制熱水模式、單獨制冷模式和制冷兼制熱水模式。本文實驗研究了機組在三種運行模式下的運行性能。研究結果表明:在單獨制熱水模式下,進口水溫增加,系統(tǒng)COP降低,室外溫度增加,系統(tǒng)COP增加。當進口水溫為45℃,室外環(huán)境溫度為35℃時,系統(tǒng)的制熱系數(shù)COP為3。制冷模式下,室內溫度增加,系統(tǒng)COP增加,在室內外環(huán)境溫度均為35℃時,系統(tǒng)的制冷系數(shù)COP為2.03。在制冷兼制熱水模式下,室內溫度增加,系統(tǒng)COP增加,在夏季制冷的時候,我們同時又能免費獲得熱量,節(jié)能效果明顯,當進口水溫為45℃,室外環(huán)境溫度為35℃時,其綜合能效比可達到4.7。該系統(tǒng)將熱泵熱水器與空調聯(lián)合在一起,使壓縮機一機多用,投資比單獨熱水器和單獨空調的總投資費用要少,并且節(jié)能。本文實驗結果可為開發(fā)一種新型的多功能熱泵空調熱水機組提供技術依據(jù)。
[Abstract]:Summer homes, offices and public places need cooling and hot water for living.From the point of view of energy utilization, air conditioning can achieve refrigeration.As the air conditioning unit releases condensate heat directly into the environment during summer refrigeration, it not only wastes energy but also causes urban heat pollution. In this paper, a new type of multi-function air source heat pump air conditioning hot water system is designed to solve this problem.The main components of the system, such as compressor, indoor heat exchanger, outdoor heat exchanger, condenser and throttling mechanism, are designed and calculated in detail. According to the calculation results and the system diagram, the corresponding experimental equipment is built.There are three operation modes of the system, which are single hot water model, single refrigeration mode and refrigeration / hot water mode.In this paper, the operating performance of the unit in three operation modes is studied experimentally.The results show that the inlet water temperature increases, the system COP decreases, the outdoor temperature increases and the system COP increases.When the inlet water temperature is 45 鈩,
本文編號:1735699
本文鏈接:http://www.sikaile.net/kejilunwen/sgjslw/1735699.html
教材專著