Numerical simulation of natural ventilation with passive cooling by diagonal solar chimneys and windcatcher and water spray system in a hot and dry climate

2021 ◽  
pp. 111714
Author(s):  
Sajedeh Jafari ◽  
Vali Kalantar
Keyword(s):  
Numerical Simulation ◽  
Natural Ventilation ◽  
Passive Cooling ◽  
Water Spray ◽  
Spray System

Numerical Simulation of Enclosed Gas Fire Extinguishment by a Water Spray

1995 ◽  
Vol 5 (2) ◽  
pp. 135-146 ◽  
Author(s):  
V. Novozhilov ◽  
B. Moghtaderi ◽  
D. F. Fletcher ◽  
J. H. Kent
Keyword(s):  
Numerical Simulation ◽  
Water Spray ◽  
Fire Extinguishment

Numerical Simulation of Temperature Distribution and Cooling Rate in Ship Profiles during Water Spray Cooling

1998 ◽  
Vol 284-286 ◽  
pp. 385-392 ◽  
Author(s):  
V. Olden ◽  
C. Thaulow ◽  
H. Hjerpetjønn ◽  
K. Sørli ◽  
V. Osen
Keyword(s):  
Numerical Simulation ◽  
Temperature Distribution ◽  
Cooling Rate ◽  
Spray Cooling ◽  
Water Spray ◽  
Water Spray Cooling

scholarly journals Experimental investigations of spray flow rate and angle in enhancing the performance of PV panels by steady and pulsating water spray system

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Mojtaba Nateqi ◽  
Mehran Rajabi Zargarabadi ◽  
Roohollah Rafee
Keyword(s):  
Cooling System ◽  
Spray Cooling ◽  
Spray Angle ◽  
Experimental Investigations ◽  
Water Spray ◽  
Maximum Increase ◽  
Photovoltaic Panel ◽  
Electrical Efficiency ◽  
Spray System ◽  
Pv Panel

AbstractIn this study, a spray cooling system is experimentally investigated to increase the photovoltaic panel efficiency. Cooling of photovoltaic panels is one of the important parameters that affects the PV panel performance. In this experiment the effects of spray angle, nozzles to PV panel distance, number of nozzles, and pulsating water spray on the PV panel performance are investigated. For this purpose, an experimental setup was made. The spray angles varied from 15° to 50°. The comparison between the spray angles shows that by decreasing the spray angle to 15° increases the electrical efficiency of PV panel to 19.78% and simultaneously the average PV panel temperature decreases from 64 (for non-cooled PV) to 24 °C. Also, nozzle to PV panel distance was changed from 10 to 50 cm. The best result was obtained for the lowest distance by 25.86% increase in power output. Study of various frequency also show that due to the surface evaporation and the intensity of the radiation, increasing the water spraying frequency can increase or decrease the electrical efficiency. The On–Off water spray system results show that the maximum increase in efficiency was obtained with frequency of 0.2 Hz which it was 16.84%. Water consumption also decreased to half.

Passive Cooling Method of Architecture Design in Shenzhen

2011 ◽  
Vol 374-377 ◽  
pp. 268-272
Author(s):  
Hai Yun Wang ◽  
Jing Shi
Keyword(s):  
Natural Ventilation ◽  
Design Space ◽  
Space Form ◽  
Passive Cooling ◽  
Shape Design ◽  
Architecture Design ◽  
Construction Design ◽  
Cooling Method ◽  
Shenzhen City ◽  
Passive Design

In this essay, the cooling method design was discussed from the perspective of architecture design using passive design based on the climate and geological environment of Shenzhen city. It concluded that shading and natural ventilation should be the major cooling method for this area, and design recommendations were put forward based on analysis from the perspective of plan layout, shape design, space form and detailed construction design.

Numerical Simulation of Wallboards Constructively Incorporated with Different PCM Content Solutions for Passive Cooling in Southern of Algeria

2015 ◽  
pp. 195-208
Author(s):  
R. Ghedamsi ◽  
N. Settou ◽  
N. Saifi ◽  
S. Rahmouni ◽  
B. Dokkar ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Passive Cooling

scholarly journals Study on Parameters of a New Gas–Water Spray in Ore Pass Dedusting Based on Experiment and Numerical Simulation

ACS Omega ◽  
2020 ◽  
Vol 5 (35) ◽  
pp. 21988-21998
Author(s):  
Yapeng Wang ◽  
Zhongan Jiang ◽  
Feng Xu ◽  
Jiuzhu Wang ◽  
Guoliang Zhang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Water Spray ◽  
Ore Pass
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