【摘 要】
:
Absorption refrigeration using R22 as refrigerant and organic solution as absorbent has been widely studied and has even found its application in some cases. Bu
论文部分内容阅读
Absorption refrigeration using R22 as refrigerant and organic solution as absorbent has been widely studied and has even found its application in some cases. But with the forthcoming phasing out date of R22, the research on alternative of R22 in absorption refrigeration is becoming more and more important. In this paper, the characteristics of the cycle using R134a+R32/DMF and R22/DMF respectively under different working conditions were calculated and analyzed. The comparison shows that the new working pair will not only avoid the depletion of the ozone, but also have a higher COP and refrigeration capacity.
其他文献
该文根据分形理论,对多孔介质几何结构进行了描述,计算出了不同孔隙率多孔介质简化模型的剖面面积分布分形维数d,并利用分形维数结合土壤导热模型推出了土壤的有效导热系数表
因为尚处在康复中,刘翔未能参赛,男、女竞走和马拉松比赛已经提前赛过,2013年9月7~11日在沈阳举行的12运会田径赛,少了一些高潮,但运动员还是创造了不少值得一提的好成绩。全
An experimental investigation on a new Axial Cyclone Dust Collector(ACDC) has been carried out in this paper. According to the characteristics of particle movem
很多女性朋友在常规的妇科防癌筛查中,都曾做过一项叫 “子宫颈液基细胞学(TCT)”的检查.面对报告中的专业术语,很多人感到一头雾水,百思不得其解.那么这些报告中的结果 描述
该文在自行设计的小型外热式回转窑试验装置上进行了污泥热解试验,考察了污泥在不同热解连温下三种形态热解产物的产率,分析了污泥在热解过程中热解气体的成分和热值的变化特
手术室的护理是确保手术治疗及医疗安全的重要保障,手术室正确的护理管理对于防止差错或医疗事故的发生起到了良好的作用.那么,今天就让我们一起来了解下手术室具体的护理过
A new novel adsorption air-conditioning system is developed, in which activated carbon -methanol has been used as working pair. With a heat source temperatuxe o
冠状动脉粥样硬化是什么,人的心脏就是相当于汽车的发动机,冠状动脉粥样硬化,冠状动脉就相当于发动机的油路,冠状动脉粥样硬化堵掉了以后,就相当于供应发动机油的管道堵掉了,
该文提出一种基于改进遗传算法的随机及演方法,该方法具有更强的全局收敛性,同时也具有对粒径分布形状不敏感、抗噪声能力强等优点,适合于工业现场应用.“,”In this paper a
急性心梗,即急性心肌梗死是指由于冠动脉出现急性、连续性的缺血以及缺氧,而致使患者出现的心肌坏死.急性心梗的发病率在欧美国家是比较高的,据有关数据统计,美国平均每一年