Effect of water temperature and air stream velocity on performance of direct evaporative air cooler for thermal comfort

Aziz, Azridjal; Mainil, Rahmat Iman; Mainil, Afdhal Kurniawan; Listiono, Hendra '

doi:10.1063/1.4968277

Cited by 11 publications

(5 citation statements)

References 8 publications

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“…The first was the cooling pad which covers variables such as material specifications, area, and thickness (Elmsaad and Omran 2015;Warke and Deshmukh 2017;Abohorlu Doğramacı et al 2019;Susila, Wijaksana, and Suarnadwipa 2019;Abaranji, Panchabikesan, and Ramalingam 2020;Ahmad, Malek, and Rahman 2017;Esparza L. et al 2018). The second airstream velocity, air temperature, and water volume in the system (Aziz et al 2017;Warke and Deshmukh 2017;Susila, Wijaksana, and Suarnadwipa 2019), and the last integration with other techniques to improve the performance of DEC (Darmawan, Wijaksana, and Suarnadwipa 2021;Xu et al 2016). These studies focused mainly on developing technical aspects of the cooler system, and none of them was applied explicitly to housing units.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of evaporative cooler models using cotton-based fabric pads for tropical housing units

Antaryama¹,

Ekasiwi²,

Erwindi³

2022

ARTEKS J. Tek. Arsit.

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Direct evaporative cooling (DEC) is a passive cooling strategy adopted in predominantly hot regions to restore building thermal comfort with less energy consumption and minimum impact on the environment. The implementation and studies of DEC in tropical housing are limited. Although DEC can reduce air temperature, an increase in relative humidity can still be seen as a disadvantage. Many materials were introduced for the cooling pads, but none was explicitly proposed for use in the housing unit. The present study explores different cotton-based fabrics to be used in the proposed evaporative cooler of the public housing unit in Surabaya. It analyses its ability to reduce air temperature and identify the increase in air humidity that may occur. A small-scale model of the housing unit that incorporates an evaporative cooling system is set, and internal air temperature and humidity are recorded. Results of the analysis show that different fabric specifications can lead to various thermal performances. A cotton-based blanket is found to be suitable for the proposed strategy.

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Section: Introductionmentioning

confidence: 99%

Evaluation of evaporative cooler models using cotton-based fabric pads for tropical housing units

Antaryama¹,

Ekasiwi²,

Erwindi³

2022

ARTEKS J. Tek. Arsit.

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“…O comporamento distinto da umidade relativa nos dois aviários, apesar de apresentarem comportamento similar de temperatura, esteve diretamente relacionado a temperatura da água utilizada nos resfriadores evaporativos. Aziz, Mainil, Mainil & Listiono (2017) avaliando a influência da temperatura da água e da vazão de ar em um resfriador evaporadorativo direto, verificaram que a umidade relativa tendeu a aumentar com o aumento da temperatura e, que a eficiência de resfriamento aumentou com a redução da temperatura da água.…”

Section: Fonte: Autores (2020)unclassified

Resfriamento da água utilizada em sistema de climatização evaporativo e o desempenho de frangos de corte

Jordan

Garcia

Sgavioli

et al. 2021

RSD

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Dois aviários foram construídos em escala reduzida distorcida e equipados com climatizadores evaporativos. Em um dos aviários foi utilizado um sistema de refrigeração para resfriar a água utilizada no sistema evaporativo, enquanto no outro, foi utilizada água em condição ambiente. Cada aviário recebeu 125 pintainhos da linhagem Cobb com um dia de idade, as quais foram criadas até os 43 dias. Durante o período do experimento foram monitoradas as condições ambientais dos dois aviários: temperatura e umidade relativa do ar e, temperatura da cama. Também foi monitorada a temperatura superficial das aves. Foi avaliado o peso final, o ganho de peso das aves e a viabilidade criatória. Para a temperatura do ar, temperatura da cama, ganho de peso e peso final, não houve diferenças significativas entre os dois aviários. A umidade relativa foi menor para o aviário que operou com água resfriada no climatizador evaporativo, o qual apresentou viabilidade criatória de 90,4%, enquanto que no aviário que operou com água em condição ambiente, a viabilidade criatória foi de 86,4%.

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“…Also, the Perpendicular direction of airflow results in the highest cooling capacity compared with other directions. Aziz et al [16] experimentally investigated the effect of water temperature from 100C to 500C with the increment of 100 and airstream velocity for 2.9 m/s, 3.9 m/s, and 4.5 m/s on the performance of direct evaporative air cooler for thermal comfort. Results show that relative humidity increases with water temperature but is unaffected by the airstream velocity.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of air cooler using local palm tree waste

Almaneea

Alshammari

Aldhafeeri

et al. 2022

Heliyon

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Effect of water temperature and air stream velocity on performance of direct evaporative air cooler for thermal comfort

Cited by 11 publications

References 8 publications

Evaluation of evaporative cooler models using cotton-based fabric pads for tropical housing units

Evaluation of evaporative cooler models using cotton-based fabric pads for tropical housing units

Resfriamento da água utilizada em sistema de climatização evaporativo e o desempenho de frangos de corte

Experimental investigation of air cooler using local palm tree waste

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