A Case Study: Touch Screen Control for Air Conditioning Systems in the Electric Tram

Abstract

The air conditioning system in the railway system is a system that is designed to be suitable for the passenger compartment of the railway system, such as trains and electric trams. This air conditioning system is designed to adjust the temperature and air quality inside the train compartment to be of high quality even in hot and humid weather conditions. Most of the systems are installed on the roof or under the floor of the train to be able to cool a large amount and maintain the temperature inside the compartment conveniently. The design of this air conditioning system focuses on efficiency, energy saving, and low noise pollution to not disturb passengers. The research has tested and measured the efficiency of the air conditioning system by measuring various values such as temperature, electrical power, and operating time according to the set temperature. The experimental results showed that the air conditioning system in the electric tram can continuously reduce the temperature inside the passenger compartment from the initial temperature of 32^∘C to 16^∘C with in 1 hour and 30 minutes. It was found that the air conditioning system took longer time to cool down when the temperature was set at a significantly low level. This research result will help to understand the operation of the air conditioning system and can be used to design the air conditioning system in the electric tram to increase the efficiency of services to passengers.