Feasibility Study of Atmospheric Water Harvesting Augmented through Evaporative Cooling

The water harvesting potential of atmospheric water generators (AWGs) in high-altitude semiarid regions can be diminutive relative to the water generation capacity. Operational parameters for the dehumidification process can be augmented to increase atmospheric water in the defined zone available fo...
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Autor*in:	Lesedi Kgatla [verfasserIn] Brian Gidudu [verfasserIn] Evans M. Nkhalambayausi Chirwa [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	atmospheric water generators atmospheric water harvesting capacity utilisation evaporative cooling system water yield energy consumption

Übergeordnetes Werk:	In: Water - MDPI AG, 2010, 14(2022), 19, p 2983
Übergeordnetes Werk:	volume:14 ; year:2022 ; number:19, p 2983

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/w14192983

Katalog-ID:	DOAJ021269297

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520			\|a The water harvesting potential of atmospheric water generators (AWGs) in high-altitude semiarid regions can be diminutive relative to the water generation capacity. Operational parameters for the dehumidification process can be augmented to increase atmospheric water in the defined zone available for harvesting. In this paper, the feasibility of augmenting the microclimates of AWGs at the point of air extraction through an evaporative cooling system (ECS) was investigated. Water yield and capacity utilisation were measured from two AWGs piloted on a plant in Ga-Rankuwa, South Africa. This was implemented between December 2019 and May 2021. The study revealed that although the ECS did impact the operating parameters through decreasing temperature and increasing relative humidity (<i<p</i< < 0.05), variance in water yield was not significant (<i<p</i< < 0.05). Capacity utilisation of the AWGs remained below 50% after augmentation. Cooling efficiency of the ECS ranged between 1.4–74.5%. Energy expenditures of 0.926 kWh/L and 0.576 kWh/L for AWGs 1 and 2 were required under pristine conditions, respectively. Under the modified conditions, energy expenditure decreased to 0.855 kWh/L for AWG 1, but increased/L to 0.676 kWh for AWG 2. ECS is deduced to not be a feasible intervention for augmenting water harvesting potential for AWGs in this semiarid zone.
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allfieldsSound	10.3390/w14192983 doi (DE-627)DOAJ021269297 (DE-599)DOAJ3c6b78fd5f83423ca99653c0f0727bfb DE-627 ger DE-627 rakwb eng TC1-978 TD201-500 Lesedi Kgatla verfasserin aut Feasibility Study of Atmospheric Water Harvesting Augmented through Evaporative Cooling 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The water harvesting potential of atmospheric water generators (AWGs) in high-altitude semiarid regions can be diminutive relative to the water generation capacity. Operational parameters for the dehumidification process can be augmented to increase atmospheric water in the defined zone available for harvesting. In this paper, the feasibility of augmenting the microclimates of AWGs at the point of air extraction through an evaporative cooling system (ECS) was investigated. Water yield and capacity utilisation were measured from two AWGs piloted on a plant in Ga-Rankuwa, South Africa. This was implemented between December 2019 and May 2021. The study revealed that although the ECS did impact the operating parameters through decreasing temperature and increasing relative humidity (<i<p</i< < 0.05), variance in water yield was not significant (<i<p</i< < 0.05). Capacity utilisation of the AWGs remained below 50% after augmentation. Cooling efficiency of the ECS ranged between 1.4–74.5%. Energy expenditures of 0.926 kWh/L and 0.576 kWh/L for AWGs 1 and 2 were required under pristine conditions, respectively. Under the modified conditions, energy expenditure decreased to 0.855 kWh/L for AWG 1, but increased/L to 0.676 kWh for AWG 2. ECS is deduced to not be a feasible intervention for augmenting water harvesting potential for AWGs in this semiarid zone. atmospheric water generators atmospheric water harvesting capacity utilisation evaporative cooling system water yield energy consumption Hydraulic engineering Water supply for domestic and industrial purposes Brian Gidudu verfasserin aut Evans M. Nkhalambayausi Chirwa verfasserin aut In Water MDPI AG, 2010 14(2022), 19, p 2983 (DE-627)611729008 (DE-600)2521238-2 20734441 nnns volume:14 year:2022 number:19, p 2983 https://doi.org/10.3390/w14192983 kostenfrei https://doaj.org/article/3c6b78fd5f83423ca99653c0f0727bfb kostenfrei https://www.mdpi.com/2073-4441/14/19/2983 kostenfrei https://doaj.org/toc/2073-4441 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 14 2022 19, p 2983
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callnumber-first	T - Technology
author	Lesedi Kgatla
spellingShingle	Lesedi Kgatla misc TC1-978 misc TD201-500 misc atmospheric water generators misc atmospheric water harvesting misc capacity utilisation misc evaporative cooling system misc water yield misc energy consumption misc Hydraulic engineering misc Water supply for domestic and industrial purposes Feasibility Study of Atmospheric Water Harvesting Augmented through Evaporative Cooling
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topic_title	TC1-978 TD201-500 Feasibility Study of Atmospheric Water Harvesting Augmented through Evaporative Cooling atmospheric water generators atmospheric water harvesting capacity utilisation evaporative cooling system water yield energy consumption
topic	misc TC1-978 misc TD201-500 misc atmospheric water generators misc atmospheric water harvesting misc capacity utilisation misc evaporative cooling system misc water yield misc energy consumption misc Hydraulic engineering misc Water supply for domestic and industrial purposes
topic_unstemmed	misc TC1-978 misc TD201-500 misc atmospheric water generators misc atmospheric water harvesting misc capacity utilisation misc evaporative cooling system misc water yield misc energy consumption misc Hydraulic engineering misc Water supply for domestic and industrial purposes
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title	Feasibility Study of Atmospheric Water Harvesting Augmented through Evaporative Cooling
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title_full	Feasibility Study of Atmospheric Water Harvesting Augmented through Evaporative Cooling
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title_sort	feasibility study of atmospheric water harvesting augmented through evaporative cooling
callnumber	TC1-978
title_auth	Feasibility Study of Atmospheric Water Harvesting Augmented through Evaporative Cooling
abstract	The water harvesting potential of atmospheric water generators (AWGs) in high-altitude semiarid regions can be diminutive relative to the water generation capacity. Operational parameters for the dehumidification process can be augmented to increase atmospheric water in the defined zone available for harvesting. In this paper, the feasibility of augmenting the microclimates of AWGs at the point of air extraction through an evaporative cooling system (ECS) was investigated. Water yield and capacity utilisation were measured from two AWGs piloted on a plant in Ga-Rankuwa, South Africa. This was implemented between December 2019 and May 2021. The study revealed that although the ECS did impact the operating parameters through decreasing temperature and increasing relative humidity (<i<p</i< < 0.05), variance in water yield was not significant (<i<p</i< < 0.05). Capacity utilisation of the AWGs remained below 50% after augmentation. Cooling efficiency of the ECS ranged between 1.4–74.5%. Energy expenditures of 0.926 kWh/L and 0.576 kWh/L for AWGs 1 and 2 were required under pristine conditions, respectively. Under the modified conditions, energy expenditure decreased to 0.855 kWh/L for AWG 1, but increased/L to 0.676 kWh for AWG 2. ECS is deduced to not be a feasible intervention for augmenting water harvesting potential for AWGs in this semiarid zone.
abstractGer	The water harvesting potential of atmospheric water generators (AWGs) in high-altitude semiarid regions can be diminutive relative to the water generation capacity. Operational parameters for the dehumidification process can be augmented to increase atmospheric water in the defined zone available for harvesting. In this paper, the feasibility of augmenting the microclimates of AWGs at the point of air extraction through an evaporative cooling system (ECS) was investigated. Water yield and capacity utilisation were measured from two AWGs piloted on a plant in Ga-Rankuwa, South Africa. This was implemented between December 2019 and May 2021. The study revealed that although the ECS did impact the operating parameters through decreasing temperature and increasing relative humidity (<i<p</i< < 0.05), variance in water yield was not significant (<i<p</i< < 0.05). Capacity utilisation of the AWGs remained below 50% after augmentation. Cooling efficiency of the ECS ranged between 1.4–74.5%. Energy expenditures of 0.926 kWh/L and 0.576 kWh/L for AWGs 1 and 2 were required under pristine conditions, respectively. Under the modified conditions, energy expenditure decreased to 0.855 kWh/L for AWG 1, but increased/L to 0.676 kWh for AWG 2. ECS is deduced to not be a feasible intervention for augmenting water harvesting potential for AWGs in this semiarid zone.
abstract_unstemmed	The water harvesting potential of atmospheric water generators (AWGs) in high-altitude semiarid regions can be diminutive relative to the water generation capacity. Operational parameters for the dehumidification process can be augmented to increase atmospheric water in the defined zone available for harvesting. In this paper, the feasibility of augmenting the microclimates of AWGs at the point of air extraction through an evaporative cooling system (ECS) was investigated. Water yield and capacity utilisation were measured from two AWGs piloted on a plant in Ga-Rankuwa, South Africa. This was implemented between December 2019 and May 2021. The study revealed that although the ECS did impact the operating parameters through decreasing temperature and increasing relative humidity (<i<p</i< < 0.05), variance in water yield was not significant (<i<p</i< < 0.05). Capacity utilisation of the AWGs remained below 50% after augmentation. Cooling efficiency of the ECS ranged between 1.4–74.5%. Energy expenditures of 0.926 kWh/L and 0.576 kWh/L for AWGs 1 and 2 were required under pristine conditions, respectively. Under the modified conditions, energy expenditure decreased to 0.855 kWh/L for AWG 1, but increased/L to 0.676 kWh for AWG 2. ECS is deduced to not be a feasible intervention for augmenting water harvesting potential for AWGs in this semiarid zone.
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title_short	Feasibility Study of Atmospheric Water Harvesting Augmented through Evaporative Cooling
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author2	Brian Gidudu Evans M. Nkhalambayausi Chirwa
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Feasibility Study of Atmospheric Water Harvesting Augmented through Evaporative Cooling

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