scholarly journals DESIGN APPROACH OF AIR-CONDITIONING SYSTEM FOR A LARGE INDOOR STADIUM ADOPTING THE AIR DISTRIBUTION SYSTEM USING BACK SURFACE OF STADIUM SEATS

1995 ◽  
Vol 1 (1) ◽  
pp. 234-237
Author(s):  
Kazuhiro OTAKA ◽  
Naoki HASHIMOTO ◽  
Hiroshi IWANAMI ◽  
Satoru DOI
Keyword(s):  
Distribution System ◽  
Air Conditioning ◽  
Design Approach ◽  
Air Distribution ◽  
Back Surface ◽  
Air Conditioning System

Simulation analysis and thermal comfort assessment of indoor environment of the heritage building in gate tower

2020 ◽  
pp. 1420326X2090892
Author(s):  
Qunli Zhang ◽  
Hongbao Zhai ◽  
Xinchao Zhang ◽  
Fang Liu
Keyword(s):  
Thermal Comfort ◽  
Distribution System ◽  
Air Conditioning ◽  
Indoor Environment ◽  
Simulation Analysis ◽  
Heating System ◽  
Air Conditioning System ◽  
Heritage Buildings ◽  
Heritage Building ◽  
Air Control

The thermal comfort inside heritage buildings in China is mostly achieved with the use of split air conditioning and radiator heating system. Due to inefficiencies in the design of those systems, the regulation of air temperature is generally inadequate. To meet the thermal comfort requirements of the partial significant room, which is the meeting hall area, and to preserve the external walls and facade, this paper simulates and analyses typical working conditions of air control schemes in the gate tower and suggests the use of a floor-type fan coil air conditioning system. The results show that the proposed air distribution system can maintain a temperature of 295 K in the summer, which meets the thermal comfort requirements of the meeting hall. This method takes into account the requirement for thermal comfort, as well as the requirements of heritage preservation. Our proposal contributes to the growing literature, which studies methods of improving the thermal comfort of the indoor environment of heritage buildings.

scholarly journals Air-conditioning system with underfloor air distribution integrated solar chimney in data center

2017 ◽  
Vol 205 ◽  
pp. 3420-3427 ◽  
Author(s):  
Yang Gao ◽  
Jinxiang Liu ◽  
Xiaolei Yuan ◽  
Kai Zhang ◽  
Yujia Yang ◽  
...  
Keyword(s):  
Data Center ◽  
Air Conditioning ◽  
Air Distribution ◽  
Solar Chimney ◽  
Air Conditioning System ◽  
Underfloor Air Distribution

Numerical Simulation of UFAD Conditioned Space under Summer Part-Load Conditions

2014 ◽  
Vol 960-961 ◽  
pp. 625-630
Author(s):  
Qiao Yan Ma ◽  
Shu Xing Zhao ◽  
Long Huang ◽  
Cheng Deng
Keyword(s):  
Air Conditioning ◽  
Simulation Analysis ◽  
Energy Systems ◽  
Outdoor Environment ◽  
Air Distribution ◽  
Air Velocity ◽  
Air Conditioning System ◽  
Part Load ◽  
Load Rate ◽  
Load Conditions

The air conditioning system did not run as the design conditions in most of the time. Therefore, how to rationally adjust air parameters under part-load conditions caused by changes in the outdoor environment is an important issue, which is crucial to people’s comfort and energy systems. This paper introduces the part-load rate α to distinguish among different load-part conditions. And by taking the typical conditioned space of underfloor air distribution (UFAD) system in perimeter zone of New Tianjin Library as the object and using Fluent for simulation analysis, we get the conclusion that there is a maximum limit of supply air temperature and a minimum limit of supply air velocity under summer part-load conditions. For each condition, there is a set of optimal air parameters to make the indoor personnel achieve the most comfortable condition. Finally, we acquire this set of optimal air parameters by simulating and analyzing.

Discussion to Energy-Saving Design of the Air-Conditioning System

2013 ◽  
Vol 361-363 ◽  
pp. 444-447
Author(s):  
Qian Wang ◽  
Rui Li
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Saving ◽  
Distribution System ◽  
Air Conditioning ◽  
Building Energy ◽  
Design Parameters ◽  
Building Energy Efficiency ◽  
Air Conditioning System ◽  
Transmission And Distribution

Air conditioning energy saving is of great significance for building energy efficiency, reduce air conditioning energy consumption can reduce most of the building energy consumption, achieve the purpose of saving energy. This article analyzed and discussed the choice of indoor design parameters, the choice of cold and heat source and the design of the transmission and distribution system.

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