制冷劑R1234yf水合物的試驗(yàn)研究
發(fā)布時(shí)間:2018-05-15 13:21
本文選題:蓄冷技術(shù) + 新型蓄冷工質(zhì); 參考:《流體機(jī)械》2017年04期
【摘要】:蓄冷技術(shù)是為了面對(duì)能源緊張匱乏的形勢(shì)而興起的一門新型節(jié)能優(yōu)化技術(shù)。由于環(huán)保等一系列原因,研究新型蓄冷工質(zhì)尤為重要,新一代制冷劑R1234yf因其環(huán)保特性及良好的系統(tǒng)性能而受到廣泛關(guān)注。本文采用圖像法在反應(yīng)釜內(nèi)通過控制反應(yīng)體系溫度對(duì)R1234yf水合物進(jìn)行了相平衡測(cè)試,并與R134a水合物的蓄冷特性進(jìn)行比較分析。結(jié)果表明:R1234yf比R134a的蓄冷速率快、誘導(dǎo)時(shí)間短、蓄冷特性強(qiáng);設(shè)定溫度在5~10℃范圍內(nèi),R1234yf水合物的相變壓力略高于R134a水合物的相變壓力;R1234yf水合物生成驅(qū)動(dòng)力的絕對(duì)值隨反應(yīng)體系壓力升高和溫度降低而增大。
[Abstract]:Cold storage technology is a new energy-saving optimization technology rising in the face of energy shortage. Due to a series of reasons such as environmental protection, it is particularly important to study the new refrigerant, R1234yf, which is widely concerned because of its environmental protection characteristics and good system performance. In this paper, the phase equilibrium of R1234yf hydrate was measured by controlling the reaction system temperature in the reactor by image method, and compared with that of R134a hydrate. The results show that the cold storage rate of 1: R1234yf is faster than that of R134a, the induction time is shorter, and the characteristic of cold storage is stronger than that of R134a. The phase transition pressure of R1234yf hydrate is slightly higher than that of R134a hydrate at 5 ~ 10 鈩,
本文編號(hào):1892632
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