Study on indoor comfort of floor radiant cooling and displacement ventilation system in large space

被引:7
|
作者
SiyuanCheng [1 ]
ZhenqianChen [2 ]
机构
[1] Southeast Univ, Sch Energy & Environm, Nanjing, Jiangsu, Peoples R China
[2] Minist Educ China, Jiangsu Prov Key Lab Solar Energy Sci & Technol, Key Lab Energy Thermal Convers & Control, Beijing, Peoples R China
基金
国家重点研发计划;
关键词
D O I
10.1088/1755-1315/238/1/012078
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Radiant cooling and displacement ventilation system has an extensive application in large space building where there has a significant stratification of heat and mass. This paper focuses on the effects of the floor cooling proportion on the indoor comfort under radiant cooling and displacement ventilation system in large space. By simplifying the building model according to a practical waiting hall in certain railway station, a three-dimensional space model describing the comfort distribution characteristics in working area with composite system is presented. The discrete ordinates radiation model and indoor zero equation model are used to describe the indoor temperature and humidity distribution law. Floor temperature, inlet parameters and the indoor comfort control conditions are researched. The indoor thermal and moist environment is analyzed based on CFD simulation. The simulation results provide that the temperature and velocity of supply air had similar influencing characteristic on the indoor comfort. Meanwhile, the cooling capacity of floor could be higher when the supply air temperature was higher and the air supply velocity was lower and the optimum cooling proportion of floor was 0.76 to 0.77 in this paper. More importantly, the compound system could be applicable in indoor comfort control in large space.
引用
收藏
页数:7
相关论文
共 50 条
  • [1] Thermal comfort and ventilation effectiveness in an office room with radiant floor cooling and displacement ventilation
    Krajcik, Michal
    Tomasi, Roberta
    Simone, Angela
    Olesen, Bjarne W.
    [J]. SCIENCE AND TECHNOLOGY FOR THE BUILT ENVIRONMENT, 2016, 22 (03) : 317 - 327
  • [2] Analysis of feasibility of floor radiant cooling system combined with displacement ventilation
    Li, DY
    Ren, YL
    Wang, ZJ
    [J]. 2ND ASIAN CONFERENCE ON REFRIGERATION AND AIR-CONDITIONING, PROCEEDINGS: NEW CONTRIBUTION TO ASIAN SUSTAINABLE DEVELOPMENT, 2004, : 634 - 637
  • [3] Study on Indoor Air Quality of Ceiling Radiant Cooling Panel System Integrated with Displacement Ventilation
    Du, Jing
    Li, Nianping
    [J]. PROCEEDINGS OF THE 8TH INTERNATIONAL SYMPOSIUM ON HEATING, VENTILATION AND AIR CONDITIONING, VOL 1: INDOOR AND OUTDOOR ENVIRONMENT, 2014, 261 : 497 - 505
  • [4] Performance analysis of a ductless personalized ventilation combined with radiant floor cooling system and displacement ventilation
    Jiying Liu
    Daniel Alejandro Dalgo
    Shengwei Zhu
    Hui Li
    Linhua Zhang
    Jelena Srebric
    [J]. Building Simulation, 2019, 12 : 905 - 919
  • [5] Performance analysis of a ductless personalized ventilation combined with radiant floor cooling system and displacement ventilation
    Liu, Jiying
    Dalgo, Daniel Alejandro
    Zhu, Shengwei
    Li, Hui
    Zhang, Linhua
    Srebric, Jelena
    [J]. BUILDING SIMULATION, 2019, 12 (05) : 905 - 919
  • [6] Impact of indoor heat load and natural ventilation on thermal comfort of radiant cooling system: An experimental study
    Dharmasastha, K.
    Samuel, D.G. Leo
    Nagendra, S.M. Shiva
    Maiya, M.P.
    [J]. Energy and Built Environment, 2023, 4 (05): : 543 - 556
  • [7] Numerical Simulation on Indoor Thermal Environment of Radiant Flooring Cooling System with Displacement Ventilation
    Cai, Wei
    Lv, Wen
    Zhu, Lexian
    Yang, Pengfeng
    [J]. BUILDING MATERIALS AND STRUCTURAL ENGINEERING II, 2013, 743 : 90 - +
  • [8] Experimental study including subjective evaluations of mixing and displacement ventilation combined with radiant floor heating/cooling system
    Krajcik, Michal
    Tomasi, Roberta
    Simone, Angela
    Olesen, Bjarne W.
    [J]. HVAC&R RESEARCH, 2013, 19 (08): : 1063 - 1072
  • [9] COMPUTATIONAL FLUID DYNAMICS CHARACTERIZATION OF A HYBRID COOLING SYSTEM COMPOSED OF A DISPLACEMENT VENTILATION UNIT AND A RADIANT COOLING FLOOR
    Pena-Suarez, J. M.
    Ortega-Casanova, J.
    [J]. COMPUTATIONAL THERMAL SCIENCES, 2013, 5 (02): : 127 - 141
  • [10] Energy consumption of a novel floor radiant cooling system in large space buildings
    Du, Haiyi
    Shi, Juan
    Chen, Shengpeng
    Cheng, Siyuan
    Chen, Zhenqian
    [J]. APPLIED THERMAL ENGINEERING, 2024, 257