Study on indoor environment in air-conditioned trains
Citation
International journal on architectural science, v.4, no.2, 2003, pp. 60-72
Abstract
Indoor air quality (IAQ) is the problem that people increasingly pay attention to. With the development of Chinese railway undertaking, air-conditioned train is developing to the direction of higher speed and more comfortable. However, in China, people pay more attention to the temperature and the relatively humidity in train compartments, but do not care for IAQ, so it leads to poor IAQ in train compartments. This paper has investigated IAQ in train compartments in the form of questionnaire, and analyzed the result in different types of train compartments, with different load factor, different outdoor environmental parameters, different train speed, and windows opened or not. At last, we come to the conclusion that fresh air is the main factor that affects indoor environment. We put forward some measures to improve indoor environment in train compartments.
(1) Introduction
(2) The present situation of air-conditioned trains in China
(3) Investigation and study
(a) Formation of questionnaire for subjective assessment
(b) Statistics and analysis of subjective assessment
(i) Overall analysis of data
(ii) The contrast of three types of train compartment
(iii) The contrast of different load factors
(iv) The contrast between opened window and closed window
(v) The effect of outdoor environmental parameters on IAQ
(vi) The effect of train speed on IAQ
(4) Effect of indoor environmental parameters on the result of the investigation
(5) Methods of improving IAQ in train compartments
(a) Replacing traditional way of design of fresh air quantity
(b) Modification of designate parameters
(c) Airflow organization
(d) Adjust the quantity of fresh air according to the concentration of CO2
(e) Daily maintenance
(f) Strengthen management to passengers
(6) Conclusion
(7) References
(8) Appendix 1: A survey on indoor air quality in air-conditioned train in China
Description
Building Type(s): Railways
Notes: Ventilation
Subject
Type
Article
Format
Date
2003
Language
en