Results 31 to 40 of about 23,169 (217)
Experimental Study on Performance of Roots Steam Compressor
Zhileng xuebao, 2022 The compressor is the core equipment of a vapor compression system, which significantly affects the energy consumption and stability of the system. An experimental system was built for the vapor compression system driven by the roots compressor, in which
Zhang Huafu +6 more
doaj
Parameter Sensitivity Study for Typical Expander-Based Transcritical CO2 Refrigeration Cycles
Energies, 2018 A sensitivity study was conducted for three typical expander-based transcritical CO2 cycles with the developed simulation model, and the sensitivities of the maximum coefficient of performance (COP) to the key operating parameters, including the inlet ...
Bo Zhang +6 more
doaj +1 more source
Effects of isentropic efficiencies on the performance of combined cycle power plants
International Journal of Automotive and Mechanical Engineering, 2015 This study deals with modelling and performance enhancements of a combined cycle power plant. Several configurations of CCGT power plants are proposed by thermal analysis. The integrated model and simulation code for exploiting the performance of the CCGT power plant is developed utili zing MATLAB code.
Thamir K. Ibrahim, M.M. Rahman
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THERMODYNAMIC ANALYSIS OF DIFFERENT WORKING FLUIDS USED IN ORGANIC RANKINE CYCLE FOR RECOVERING WASTE HEAT FROM GT-MHR [PDF]
Journal of Engineering Science and Technology, 2016 In this paper, the performance of 13 working fluids in two Organic Rankine Cycles, which operate as the bottoming cycles for recovering waste heat from gas turbine modular helium reactor (GT-MHR), is investigated.
AMIN HABIBZADEH, MOHAMMAD MEHDI RASHIDI
doaj
IEEE Access, 2019 In an organic Rankine cycle (ORC), the study of the cycle efficiencies and the turbine is essential to know the performance in the generation of electrical energy.
J. M. Alvarez-Alvarado +4 more
doaj +1 more source
Design Optimization of 1.5-Stage Transonic Compressor Based on BPNN Surrogate Model and NSGA-II
Machines, 2023 To achieve multi-objective aerodynamics design optimization for a 1.5-stage transonic compressor, a design platform incorporating blade parameterization methods, a BPNN surrogate model, and the NSGA-II optimization method was developed. The stagger angle
Xinlong Li +5 more
doaj +1 more source
Isentropic Efficiency and Theoretical Analysis of the Planetary Rotor Expander [PDF]
, 2019 Expanders allow pressurized fluids to undergo a pressure decrease in a controlled environment via volumetric growth to extract fluid energy. There are many types of expanders, and the objective of this thesis is to model the efficiencies of the planetary rotor expander (PRE), a century-old design undeveloped due to insufficient manufacturing ...
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Direct Evaluation of Turbine Isentropic Efficiency in Turbochargers: CFD Assisted Design of an Innovative Measuring Technique [PDF]
SAE Technical Paper Series, 2019 <div class="section abstract"><div class="htmlview paragraph">Turbocharging is playing today a fundamental role not only to improve automotive engine performance, but also to reduce fuel consumption and exhaust emissions for both Spark Ignition and Diesel engines.
Marelli S. +5 more
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Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT This study proposes a novel integrated system (SDKC‐DORC) that combines a split‐flow dual‐pressure Kalina cycle with a secondary organic Rankine cycle for the synergistic utilization of solar energy and liquefied natural gas (LNG) cold energy.
Ke Xiao +6 more
wiley +1 more source
Experimental characterization of single screw expander performance under different testing conditions and working fluids [PDF]
, 2015 During the last years, one of the most popular ways to recover low-grade waste heat is the organic Rankine cycle (ORC). This technology is widely studied and continuously optimized and, as a result, there are many efficient installations available on the
Gusev, Sergei +2 more
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