Temperature control method for air-conditioning system in metro train based on passenger capacity

Abstract

The invention relates to a technology for controlling the temperature in a metro compartment with an air-conditioning system, in particular to a temperature control method for the air-conditioning system in a metro train based on the passenger capacity. A metro exterior environment temperature signal and an interior passenger capacity signal are collected and guided into a temperature control model based on the passenger capacity to obtain a metro compartment control temperature; at the same time, an actual metro compartment temperature signal is collected, and when the actual temperature is not equal to the control temperature, the air-conditioning system in the metro train is used for automatically adjusting the actual compartment temperature to reach the control temperature; a temperature sensing device is mounted in a position where the height of a metro armrest is 1.1-1.3 m, and as the armrest is generally of a hollow design, the temperature sensing device is attractive and difficult to discover and can be prevented from being touched by a passenger; and the control temperature meets the comfort requirement of the passenger, and the temperature at the 1.1-1.3 m part of the metro compartment can accurately reflect the actual temperature of the passenger range.

Description

technical field [0001] The invention relates to the temperature control technology in the compartment of a subway air-conditioning system. Background technique [0002] The design temperature in the subway car is the most important factor affecting the thermal comfort of passengers, which directly affects the convection and radiation heat exchange of the human body. So far, my country has no relevant standards for the setting of temperature control in subway cars, and most of them refer to the standards of the European Union of Railways. Initially, the design temperature in the compartment in UIC553-1990 was used, and its formula is expressed as: [0003] t in =22+0.25×(t out -19) = 0.25t out +17.25 [0004] In the formula, t in - Air temperature inside the car, °C; [0005] t out - outside air temperature, °C. [0006] The UIC553 temperature control method that I have learned from now only controls the temperature difference between the inside and outside of the ca...

AI Technical Summary

Problems solved by technology

In vehicles with severe short-circuit of the return air flow, it is more likely that the return air temperature is already very low, but the passengers still respond to the phenomenon of overheating

Therefore, the commonly used return air temperature control method cannot guarantee the thermal comfort of passengers, and the present invention considers adopting a new temperature control point within the range of passengers

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