Prediction of saturated liquid enthalpy of refrigerant mixtures

来源 :Science in China(Series E:Technological Sciences) | 被引量 : 0次 | 上传用户:guansuwei9
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
New corresponding temperature and corresponding enthalpy of refrigerant mix- tures were defined. The relationship between saturated liquid corresponding en- thalpy and corresponding temperature of refrigerant mixtures accorded with that of pure components. The characteristic parameters of saturated liquid enthalpy dif- ference of refrigerant mixtures were calculated by three methods according to the different application conditions. The generalized equation of saturated liquid en- thalpy of refrigerant mixtures was presented. The calculated values were compared with the values in literature for five ternary and binary refrigerant mixtures, namely R404A, R407A, R407B, R32/R134a, and R410A. The overall average absolute devia- tion was less than 1.0%. New corresponding temperature and corresponding enthalpy of refrigerant mix- tures were defined. The relationship between saturated liquid corresponding en- thalpy and corresponding temperature of refrigerant mixtures accorded with that of pure components. The characteristic parameters of saturated liquid enthalpy dif- ference of refrigerant mixtures were calculated by three methods according to the different application conditions. The generalized equation of saturated liquid en- thalpy of refrigerant mixtures was presented. The calculated values ​​were compared with the values ​​in literature for five ternary and binary refrigerant mixtures, namely R404A, R407A, R407B , R32 / R134a, and R410A. The overall average absolute deviation was less than 1.0%.
其他文献
日前,在省地税局召开的“转变作风、优质服务、文明办税”活动月电视电话动员会上,省地税局局长赵江涛作了题为“转变作风,优化服务,努力营造良好的经济税收新环境”的重要讲话,这
本刊讯“中国税收征管信息系统”(CTAIS)元月1日在河南全省国税系统上线,进入试运行。 我省国税系统是国家税务总局确定的CTAIS试点单位之一。为了实现总局要求,确保今年元月1日 CTAIS在全省范围内
电影(包括故事片、纪录片、美术片、科教片等)和电视(包括电视剧及各种专题片)中的音乐,因其载体的特殊性和传播的广泛性,而使民族风格的重要性更为突出。在国际文化交流中,影视作品
背景:神经营养素-4(NT-4,Neurotrophin-4)在神经系统的发育和成体中均起重要作用,不仅对某些特定亚群神经元的存活、增殖、分化及轴突可塑性有一定的调节作用,而且对某些神经
期刊
龙岗区财政局以江总书记“三个代表”的重要思想和中央经济、财政工作会议精神为指导,紧密围绕市委、区委下达的中心工作,加强收入监管,确保财政收入持续稳定增长。 今年围
本刊讯:“转变作风、优质服务、文明办税”活动开展以来,安阳县地税局立足实际,文明服务于农村广大纳税人,为创造公平、公开、公正的税收环境,大胆推出了农村税收“阳光工程
有专家说,一部现代文学期刊发展史,在相当程度上折射出现代文学的发展脉络。研究新文学史料,文学老期刊不失为一种极为宝贵的钩沉与考据资料。其中文事更替、文人沧桑,都可追寻文
目的:建立同时测定红三叶中大豆苷元、染料木素、刺芒柄花素和鹰嘴豆芽素A的高效液相色谱方法。方法:采用Kromasil C18色谱柱(250mm×4.6mm,5μm),以乙腈-0.1%磷酸为流动相进
目的:建立一点红不同营养器官中鞣质和绿原酸含量测定方法。方法:以没食子酸为对照品,采用磷钼钨酸-干酪素比色法测定了鞣质含量;以绿原酸为对照品,采用高效液相色谱法测定了
我的艺术实践大多从叙事性的思考出发。在平日的生活中,许多“无用之物”不时跳入我的视线。从孩童时代起,我便收集生活中偶然邂逅的物什,对我来说,它们不经意的出现就如同上