Abstract
The air-conditioning systems (ACSs) of urban rail vehicles account for a large proportion of their total operating energy consumption. Measuring and analyzing this consumption is, therefore, extremely important for developing energy-saving strategies. In this study, field measurements were conducted during real urban rail vehicle operation in the summer, collecting data for parameters such as fresh air, actual car passenger, and solar radiation intensity. These data were used as an input to establish a numerical model of the ACS using AMESim. The energy performance was analyzed for the proportion of each load, the proportion of time spent in operation mode, various influencing factors, and the impact of control strategies. The results indicate that the fresh air and passenger loads account for 66% and 24% of the load, respectively, and that the ACSs switch between half-cooling and ventilation throughout most of the operating time. Compared to a fixed fresh air system, a control mode for a variable fresh air system enabled 14.5% energy savings. Compared to on-off air-conditioning control, the proposed inverter control strategy produced 14.0–31.5% energy savings. The study not only can provide a basis for formulating energy consumption specifications, but also contribute to develop an effective ACS control strategy.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
