WANG LIHUI, DU ZHIPING, SUN YUNLEI, et al. Temperature Theory Model and Characteristics Analysis on Non-isothermal Coupling between Subway Platform Piston Wind and Air Jet. [J]. Journal of refrigeration, 2016, 37(6).
WANG LIHUI, DU ZHIPING, SUN YUNLEI, et al. Temperature Theory Model and Characteristics Analysis on Non-isothermal Coupling between Subway Platform Piston Wind and Air Jet. [J]. Journal of refrigeration, 2016, 37(6). DOI: 10.3969/j.issn.0253-4339.2016.06.043.
As to the typical air-distributions in subway platforms without screen doors
the temperature mathematical model of non-isothermal coupling airflows between the platform piston wind and air-conditioning jet is established. The dynamic natures of the mass average temperature and the axial temperature of the two coupling airflows are deduced. Both of them at some horizontal offset decrease at first(10-30 s)
keep minimal value(40-70 s)
and increase gradually later with train-in dynamic process(80-105 s). And the axial temperatures of the coupling airflows are lower than their mass average temperatures. Compared with the experimental results of the liquid scale model test
the maximum error between the theoretical value and the test results are within 5%. This is a good validation to support the correctness of the theory model.
关键词
空调送风射流站台活塞风非等温耦合温度场
Keywords
air-conditioning supply jetplatform piston windnon-isothermal couplingtemperature field