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For the lack of process data of the Gas-Steam combined cycle power plant in initial operating stage, this article presents a method for the output power prediction of CCPP using the Fuzzy Analytical Hierarchy Process (FAHP). Firstly, based on the analysis of the main factors that affect the CCPP output, a hierarchical structure for the prediction of CCPP output is established by combining with Analytical...
Peak power load in summer usually occurs in high temperature and high humidity days when the cooling load of air conditioning system is large, in order to prevent the impact of peak load on power network, the research about the variation law of cooling load of air conditioning system with the climate change is necessary. Used the meteorological data of Tianjin from 1961 to 2010, this study simulated...
Five parts including environment air supply duct, air supply structure, display cabinet, air return structure and environment air return duct were integrated and the modified two fluid model was employed to simulate the air flow and heat transfer in a vertical display cabinet with environment air supply. The temperature field characteristics were analyzed and the predicted temperatures were compared...
This article analyses the temperature environment of air source heat pump using the air in underground tunnel as cold and heat sources, then models tunnel heat transfer and numerically computes, compares with experiment data and gets the result. It can provide some practically help on tunnel wind cooling technology and tunnel heat transfer calculating.
A kinetics model and a experimental rig for high temperature air coal gasification(HTAG) research were set up. The effects of important operation parameters, such as air-coal ratio, steam-coal ratio and specific gasification rate, on gasification indexes were studied through the kinetics model and gasifier. The results show that: the model can accurately predict the gas composition. And when air-coal...
The reynolds-averaged navier-stokes (RANS) method nowadays still is the major tool for gas turbine chamber (GTC) designers, but there is not a universal method in RANS GTC spray combustion simulation at present especially for the two- phase turbulent combustion. Usually there are two main steps in two-phase combustion: the liquid fuel evaporation and the gas mixture combustion. Thus, two widely used...
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