Optimal Air-volume-demand Calculation of High-speed RailIntelligent Air-conditioning System Based on Passenger Distribution
Abstract
High-Speed Rail Train Technology has developed rapidly in recent years, playing an important role in modern transportation system. However, the growing amount of railway trains also brings about excessive energy consumption. Most of the consumption comes from air-conditioning systems. In order to solve the problem, this paper introduces a kind of intelligent air-conditioning system and a design method that intends to find out the exact value of demand at any moment in the carriage and build the air-volume-demand model using the Computational Fluid Dynamics (CFD), a simulation method applied to simulate inner heat production and heat exchange under different circumstances with different passenger distribution. According to the comparison of simulation results, the maximum value of energy-saving efficiency is 89.2% approximately. The results show that such intelligent air conditioning model is energy saving, while the saving efficiency decreases to lowest at about 10.5 percent when the carriage is nearly full.
Keywords
intelligent air-conditioning system, air-volume-demand, high-speed rail, passenger distribution, CFD
DOI
10.12783/dteees/iceee2018/27887
10.12783/dteees/iceee2018/27887
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