pressure time diagram 压力时间曲线图 相似单词 enthalpy n. 焓 diagram n.[C] 1.图解,图表,简图 pressure n. [U] 1.压力,挤压 2.【物】大气压 3.催促,要求,呼吁,强迫 4.心理压力,紧张 5.困扰,艰难 [U,C] 1.压力,压强 v.[T] 1.对……施加压力( moment diagram 力矩图 f diagram 【机...
The pressure-enthalpy (P-H) diagram is a useful tool for refrigeration engineers and designers. It is also useful for service technicians. The P-H diagram is a graphical representation of the refrigerant as it travels through the refrigeration system. It can be used to predict several system ...
6) enthalpy-entropy diagram 焓熵图,焓-熵图,H-S图(I-S图)补充资料:压焓图 分子式:CAS号:性质:常简称p-H图,在热力循环,特别在冷冻循环中得到广泛应用。它也是Mollier图中的一种。在两相区中的水平线长度代表蒸发潜热。随着温度的升高,水平线的长度减小,到达临界点时,蒸发潜热缩减到零。因为压力对液相焓...
An enthalpy-concentration diagram of the binary system hydrogen peroxide-water was constructed at 50 mm Hg total pressure. Lack of information on heat capacities of the solutions at different temperatures necessitated the author assuming that the excess heat capacity of mixing remains constant in the ...
The enthalpy and entropy change associated with a phase transition to be calculated according to Eqs. (1) and (2). Sign in to download full-size image Fig. 2. (a) DSC and (b) PPC scans of the gel–fluid transition in DPPC/water. Note the tilted gel to ripple gel transition at ...
The role of pressure is not taken into account when using composite curves on a temperature/enthalpy flow rate (TI) diagram to predict minimum utility requirement in a chemical process. Usually, pressure effects are neglected by assuming small pressure drops through the process. However, sometimes,...
Psychrometric table with humid air properties like saturation pressure, specific volume, enthalpy and entropy. Moist Air - Weight of Water Vapor Weight of water vapor in air Pressure Introduction to pressure - online pressure units converter. Solubility of Air in Water The amount of air that ...
Suction line Heat exchanger 3' Expasion valve 3 1 Gas cooler T = const P 3' 3 2 Evaporator 4 Accumulator 1' 2 Compressor 4 1 1' Enthalpy Figure and Pressure Pressure – - Enthalpy Enthalpy diagram ofof the Transcritical Cycle Figure 1 1 Process Process Path Path and Diagram the ...
At the atmospheric boiling point, the entropy of vaporisation per mole is roughly constant for all fluids (Trouton’s rule). Since the enthalpy of vaporisation hfg = T· sfg, it follows that fluids with a low molecular weight, such as water, have a large enthalpy of vaporisation and, cons...
The symbol h with superscript L denotes liquid enthalpy, with superscript s denotes superheated vapor enthalpy, and no superscript corresponds to saturated vapor enthalpy. Various processes are indicated in the p-h diagram also (Fig. 9.7). Energy balance for the flash cooler gives a relationship ...