An Energy Efficient Air Conditioning System using Displacement Ventilation and Chilled Ceiling for Modern Office Buildings

2010 ◽  
Vol 9 (1) ◽  
pp. 25-44 ◽  
Author(s):  
R. Parameshwaran ◽  
R. Karunakaran ◽  
S. Muthumariappan ◽  
S. Bipasha
Keyword(s):  
Energy Efficient ◽  
Air Conditioning ◽  
Office Buildings ◽  
Displacement Ventilation ◽  
Air Conditioning System ◽  
Chilled Ceiling

Effect of Air Conditioning Position on Thermal Comfort in the Floor Air Conditioning System

2014 ◽  
Vol 493 ◽  
pp. 74-79
Author(s):  
Y.A. Sabtalistia ◽  
S.N.N. Ekasiwi ◽  
B. Iskandriawan
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Energy Consumption ◽  
Thermal Comfort ◽  
Energy Efficient ◽  
Air Conditioning ◽  
Air Conditioning System ◽  
Air Supply ◽  
Air Conditioning Systems ◽  
Air Diffusion

Energy consumption for air conditioning systems (air conditioning system) increased along with the increasing need for fresh air and comfortable in the room especially apartments. FAC system (Floor Air Conditioning) is growing because it is more energy efficient than CAC (Ceiling Air Conditioning) system. However, the position of the AC supply is on the lower level at the FAC system causes draft discomfort becomes greater as air supply closer to the occupants so that thermal comfort can be reduced. Heat mixture of windows, exterior walls, kitchen, and occupants in the studio apartment affect thermal comfort in the room too.This study aims to determine the position of the AC supply which has the best thermal comfort of FAC system in the studio apartment. It can be done by analyzing ADPI (Air Diffusion Performance Index), the distribution of air temperature, wind speed, RH (Relative Humidity), and DR (Draft Risk) to change the position of the AC supply supported by CFD (Computational Fluid Dynamics) simulation.This result prove that AC position 2 (on wall near the kitchen) is more comfortable than AC position 1 (on the bathroom wall) because AC position 2 away from occupied areas, thereby reducing the occurrence of draught discomfort.

Parametric study of an energy efficient air conditioning system using liquid desiccant

1998 ◽  
Vol 18 (5) ◽  
pp. 327-335 ◽  
Author(s):  
Adnan A. Kinsara ◽  
Omar M. Al-Rabghi ◽  
Moustafa M. Elsayed
Keyword(s):  
Parametric Study ◽  
Energy Efficient ◽  
Air Conditioning ◽  
Liquid Desiccant ◽  
Air Conditioning System

An Experimental Research on Wall Radiant Cooling and Wall-Attached-Jet Air-Conditioning System

2014 ◽  
Vol 501-504 ◽  
pp. 2244-2251 ◽  
Author(s):  
Xiang Lei Kong ◽  
Xin Li Zi ◽  
Long Yun ◽  
Xiao Song Zhang
Keyword(s):  
Indoor Air ◽  
Air Conditioning ◽  
Stable Operation ◽  
Displacement Ventilation ◽  
Vertical Temperature ◽  
Vertical Temperature Profile ◽  
Air Conditioning System ◽  
Radiant Cooling ◽  
Operation Period ◽  
The Subject

Taking the radiant cooling combined with wall-attached-jet air-conditioning system as the subject in a laboratory of Jiangsu university, an experimental study was carried out on pre-dehumidifying period, stable operation period and system shutdown period, along with analysis. The objective is to analyze the pre-dehumidification of the system, indoor air temperature and humidification change, vertical temperature profile and condensation sensitivity. The results show that the hybrid air-conditioning can provide high thermal comfort and avoid condensation effectively, which shows the better performance compared to the system of radiant cooling combined with displacement ventilation to some extent.

Proposed energy-efficient air-conditioning system using liquid desiccant

1996 ◽  
Vol 16 (10) ◽  
pp. 791-806 ◽  
Author(s):  
Adnan A. Kinsara ◽  
Moustafa M. Elsayed ◽  
Omar M. Al-Rabghi
Keyword(s):  
Energy Efficient ◽  
Air Conditioning ◽  
Liquid Desiccant ◽  
Air Conditioning System
Sign in / Sign up

Export Citation Format

Share Document