一種回熱回質(zhì)循環(huán)吸附式制冷系統(tǒng)的仿真
發(fā)布時間:2018-03-23 04:21
本文選題:回熱回質(zhì) 切入點:吸附 出處:《化工學報》2016年S2期 論文類型:期刊論文
【摘要】:吸附式制冷常采用回熱回質(zhì)循環(huán)來提升系統(tǒng)性能。研究了一種采用串聯(lián)回熱和類回質(zhì)方式的回熱回質(zhì)循環(huán)吸附式制冷系統(tǒng),并對其進行仿真。系統(tǒng)的主要部件(含作為儲液器的蒸發(fā)器)采用3層換熱法建立數(shù)學模型。仿真結(jié)果表明,隨著制冷時間的延長,系統(tǒng)性能系數(shù)(COP)單調(diào)增大,單位質(zhì)量制冷量(SCP)單調(diào)減小。隨著回熱時間的延長,COP和SCP是先增大后減小,最佳的回熱時間為10s。隨著回質(zhì)時間的延長,COP和SCP波動性下降,回質(zhì)過程未提高系統(tǒng)性能。COP和SCP隨著熱水、冷凍水溫度的升高以及冷卻水溫度的下降而增大。熱水溫度對SCP以及冷凍水、冷卻水溫度對COP和SCP的影響,呈現(xiàn)線性變化,而熱水溫度對COP的影響呈現(xiàn)二次變化。
[Abstract]:Adsorption refrigeration often uses regenerative regenerative cycle to improve the performance of the system. A series regenerative and similar regenerative cycle adsorption refrigeration system is studied. The main components of the system (including the evaporator used as a liquid-storage unit) are modeled by a three-layer heat transfer method. The simulation results show that the system performance coefficient increases monotonously with the increase of the refrigeration time. The cop and SCP increased first and then decreased with the increase of the regenerative time, and the optimal regenerative time was 10 s. The volatility of cop and SCP decreased with the prolongation of the regenerative time. The performance of the system. Cop and SCP increased with the increase of hot water, the increase of chilled water temperature and the decrease of cooling water temperature. The effects of hot water temperature on SCP and chilled water, cooling water temperature on COP and SCP showed linear change. The influence of hot water temperature on COP showed a secondary change.
【作者單位】: 上海交通大學機械與動力工程學院;
【基金】:上海市科委科研計劃項目(15DZ1201802)~~
【分類號】:TB657
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1 繆德林;二次熱能回熱理論的數(shù)學論證[J];華中工學院學報;1979年03期
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