The combination of deep learning and LDIWPSO can predict and optimize the maximum isentropic efficiency for vortex pump with high precision. It also provides a reference for the maximum value of vortex pump isentropic efficiency in theoretical analysis and numerical simulation.Xu Ping a...
We may use equation (17.67) to re-express the actual compression power in terms of isentropic specific work and isentropic efficiency: (17.69)P=−Wwsηs We may compare this expression with the expression for the power demanded by the pump, PD, found by combining equations (17.18) and (17....
A Machine Learning Framework With an Intelligent Algorithm for Predicting the Isentropic Efficiency of a Hydraulic Diaphragm Metering Pump in the Organic R... The pump provides the necessary pressure and flow for the organic Rankine cycle (ORC) system. The traditional methods have obvious limitations...
b) What is the isentropic efficiency of the nozzleSteam is compressed by an adiabatic compressor from 0.2 MPa and 150 C to 0.8 MPa and 350 C at a rate of 1.30 kg/s. The power input to the compressor is (a) 511 kW (b...
The heat loss from heat exchangers and expander losses contribute to the low efficiency of pumpless ORC. The experimental study and the performance of solar ORC for reverse osmosis desalination were studied by [155]. The expander had overall of 65% isentropic efficiency in the range of 1000–...
Advantageously, the use of a reciprocating piston compressor/expander can offer significantly improved efficiency over conventional aerodynamic rotary compressors/expanders. At least one of the first and second heat storage means may comprise a chamber for receiving gas, and particulate material (e.g. ...
piston compressorvolumetric efficiencyisentropic efficiencyTranslated from Khimicheskoe i Neftegazovoe Mashinostroenie, No. 12, pp. 25–26, December, 2017.A relationship that establishes a correlation between the isentropic efficiency and volumetric efficiency of a piston compressor and that takes into ...
The real compressorbehavior has been incorporated by the isentropic efficiency as a function of the pressure ratio. Then slightlylower optimal high pressures and lower COP are obtained. The correlations for the optimal high pressure aregiven for the ideal and real heat pump. The low temperature ...
The real compressor behavior has been incorporated by the isentropic efficiency as a function of the pressure ratio. Then slightly lower optimal high pressures and lower COP are obtained. The correlations for the optimal high pressure are given for the ideal and real heat pump. The low ...
The heat efficiency of different mode of drainage recycling is calculated and analyzed by heat balance method and equivalent enthalpy drop method in this paper,which provides the quantitative date for thermodynamic system energy. 本文通过热平衡法和等效热降法对不同疏水回收利方式的热效率进行了计算比较...