The sound velocity of gaseous R134a has been measured at low temperatures and low pressures. The specific heat was then calculated from the results. The experimental results corrected for various dispersions for the sound velocity of gaseous R134a match well with an earlier publication, with a ...
Specific heat capacity (C) is a crucial thermodynamic property of a material which entails the amount of heat required per unit mass to raise the temperature of one-degree Celsius. From: International Journal of Thermofluids, 2021 About this pageSet alert Discover other topics On this page Defini...
The heat transfer characteristics of horizontal nucleate flow boiling of R12, R134a, and R134a/Ester Lubricant mixtures were investigated both visually and... MA Kedzierski,MP Kaul - International Symposium on Transport Phenomena in Thermal Engineering 被引量: 26发表: 1993年 Orientationally ordered ...
The present invention aims to achieve a discharge system for a massive-core storage heater (1) in which system the water flow via the heater (1) and the condenser (4) is controlled in such a manner that the water recirculation rate depends only on the heat output extracted via the condens...
Environmentally benign adsorption heat pump (AHP) and desalination (AD) systems have already attracted considerable attention for space cooling/heating and potable water production since they require no electricity and are driven by solar or waste heat.
使用实际气体模型对R134a在半开式离心压缩机叶轮内部三维湍流进行了数值计算,比较了比容比相等情况下实际及理想气体模型对压缩过程的差异。2) specific heat ratio 比热容比 1. Nonadiabaticity in the experiment of specific heat ratio for air; 空气比热容比实验的非绝热问题 2. In this paper,by using me...
Bilinear fit for the enthalpy and density of superheated steam; 过热蒸汽比焓和密度的双线性拟合 2. The thermodynamic properties include temperature, pressure, density, enthalpy, entropy, specific volume and boiling latent heat. 建立了包括湿空气、R22、R21、R12、R11、R134a、NH3、H2O的热力性质计算数...
There is an urgent demand for a task-level energy efficiency evaluation method to guide energy and heat sink scheduling. This paper takes the F22 Raptor fighter jet as the research object and analyzes the influence of bleed air and electric power on the thrust and thrust-specific fuel ...
Bilinear fit for the enthalpy and density of superheated steam;过热蒸汽比焓和密度的双线性拟合2.The thermodynamic properties include temperature, pressure, density, enthalpy, entropy, specific volume and boiling latent heat.建立了包括湿空气、R22、R21、R12、R11、R134a、NH3、H2O的热力性质计算数据库系统...
The liquids investigated are binary or ternary mixtures of R134a, R152a, R125, R32 and R143a. Empirical functional relations in polynomial forms between the temperature, specific heat capacity and concentration are established and the coefficients of the polynomial correlations are presented. These ...