The Effect of Wind Direction on the Cooling Capacity of Short Dry Natural Draft Cooling Towers Operating in Close ProximitySource: Journal of Solar Energy Engineering:;2023:;volume( 146 ):;issue: 002::page 21004-1DOI: 10.1115/1.4063333Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The layout of multiple natural draft dry cooling towers could have a significant influence on the performance of the cooling system in concentrated solar power (CSP) plants; however, this has never been quantified. Hence, this work used computational fluid dynamics (CFD) modeling to analyze the cooling capacity of two short natural draft dry cooling towers (NDDCTs) on a common site for a range of tower spacings, wind-speeds, and wind incidence angles. The results show that the cooling performance of the towers is a strong function of tower spacing and their orientation with respect to the wind direction. It was found that when the wind came at a 90-deg wind incidence angle (i.e., normal to a line drawn between the two towers), their cooling capacity was improved at tower spacings of less than 1.8 tower diameters (1.8D), though for the other tower spacings, there was no interaction between the towers. However, with the wind at 45 deg to the towers, the flow around the towers resulted in a decrease in their cooling capacity at tower spacings of 1.8D and 2.6D. Most interestingly, it was found that orienting the towers in line with the prevailing wind direction delivered improvements in the cooling capacity of up to 30%. This is due to the windward tower acting as a passive windbreak. Hence, as CSP plant capacity is increased, and additional cooling towers are required, these should be placed close to any existing tower and oriented along the line of the prevailing winds.
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contributor author | Khamooshi, Mehrdad | |
contributor author | Anderson, Timothy | |
contributor author | Nates, Roy | |
date accessioned | 2024-04-24T22:45:37Z | |
date available | 2024-04-24T22:45:37Z | |
date copyright | 9/27/2023 12:00:00 AM | |
date issued | 2023 | |
identifier issn | 0199-6231 | |
identifier other | sol_146_2_021004.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4295824 | |
description abstract | The layout of multiple natural draft dry cooling towers could have a significant influence on the performance of the cooling system in concentrated solar power (CSP) plants; however, this has never been quantified. Hence, this work used computational fluid dynamics (CFD) modeling to analyze the cooling capacity of two short natural draft dry cooling towers (NDDCTs) on a common site for a range of tower spacings, wind-speeds, and wind incidence angles. The results show that the cooling performance of the towers is a strong function of tower spacing and their orientation with respect to the wind direction. It was found that when the wind came at a 90-deg wind incidence angle (i.e., normal to a line drawn between the two towers), their cooling capacity was improved at tower spacings of less than 1.8 tower diameters (1.8D), though for the other tower spacings, there was no interaction between the towers. However, with the wind at 45 deg to the towers, the flow around the towers resulted in a decrease in their cooling capacity at tower spacings of 1.8D and 2.6D. Most interestingly, it was found that orienting the towers in line with the prevailing wind direction delivered improvements in the cooling capacity of up to 30%. This is due to the windward tower acting as a passive windbreak. Hence, as CSP plant capacity is increased, and additional cooling towers are required, these should be placed close to any existing tower and oriented along the line of the prevailing winds. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | The Effect of Wind Direction on the Cooling Capacity of Short Dry Natural Draft Cooling Towers Operating in Close Proximity | |
type | Journal Paper | |
journal volume | 146 | |
journal issue | 2 | |
journal title | Journal of Solar Energy Engineering | |
identifier doi | 10.1115/1.4063333 | |
journal fristpage | 21004-1 | |
journal lastpage | 21004-19 | |
page | 19 | |
tree | Journal of Solar Energy Engineering:;2023:;volume( 146 ):;issue: 002 | |
contenttype | Fulltext |