Xi’an Bei Railway Station Waiting Room Thermal Environment And Air-conditioning Energy Research

Along with the development of our country economy and the improving of people’s living standards, passenger flow growing rapidly year by year in our country. In order to solve the problem of people’s travel hard more better, the high-speed railway has a vigorous developed. "Long-term railway network plan" to determined to2020, China’s high-speed railway construction will more than 16,000 kilometers. And When the "16 + 1 cooperation" meeting with China’s high-speed railway, The high-speed railway has becoming a shining "China card." At the same time, the size of high-speed rail station is also growing. Energy of the air conditioning system in waiting room is also increasing. To ensure a comfortable thermal environment of the waiting hall, and also to minimize the energy consumption of air conditioning systems, rational way air distribution and air-conditioning control strategies is essential.Taking Xi’an Bei railway station for the study of thermal environment in all seasons waiting room on-site tests and questionnaires. Simulation study on the winter air conditioning system airflow based on available thermal environmental conditions, and the summer air conditioning energy gives ordinary workday Control Strategy.1. Test the summer of 2014 to the spring of 2015 waiting room indoor and outdoor thermal environment, the test includes: indoor dry bulb temperature, relative humidity,mean radiant temperature and air flow rate, the outdoor dry bulb temperature, relative humidity. And indoor waiting passengers questionnaire, including: background information on the subject, waiting time, feeling hot, wet feeling, as well as indoor environment satisfaction.2. Statistical thermal environment test data and analysis results of the survey, found that the summer season and the transition has comfortable indoor thermal environment and higher passenger satisfaction. Although in winter the indoor temperature in the "Railway Passenger Transport Station Design" regulatory requirements, but the visitors’ has lower interior satisfaction, and generally considered indoor environment is a little cool.3. For colder winter indoor thermal environment, the establishment of the station CFD model according to the actual size and structure of the station air conditioning design parameters. Using Airpak airflow simulation under different organizational forms ofindoor thermal environment. Expecting find better meet human thermal comfort in winter of organizational forms airflow though comparative analysis.4. Researching Xi’an Bei Railway Station passenger’s waiting time and passenger waiting distribution research. Proposed the air condition controling by the number of waiting passenger’s lines change law based on distribution of passengers. Raising the indoor temperature setting program on air condition based on thermal adaptation model which getting from thermal comfort survey. Finally, two recommendations on air conditioning system based on the characteristics of the air conditioning system, when indoor load changing.Research on this topic initially mastered the hot environmental conditions of Xi’an Bei passenger station waiting room; the winter simulation studies suggest that the oblique angle of the air supply at 30 °can creating indoor thermal environment to better meet the requirements of thermal comfort; Air conditioning in summer. It can save a lot of energy when you press the change number of the waiting room.