Application of Taguchi and ANOVA methods in the optimisation of a direct evaporative cooling pad

Laknizi, Azzeddine; Abdellah, Abdellatif Ben; Mahdaoui, Mustapha; Anoune, Kamal

doi:10.1080/19397038.2020.1866707

Cited by 9 publications

(9 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They concluded that the water evaporated rate was only slightly affected by the pad type, being mainly influenced by the air velocity. Laknizi et al [43] studied corrugated cellulose pads with three different flute angles, obtaining the best results for the CELdek® 7090-15. Malli et al [53] study the pressure drop for three thicknesses of two commercial corrugated cellulose pads, whose distance between two adjacent layers was 50 and 70 mm, respectively.…”

Section: Pad Geometric Characteristics and Configurationmentioning

confidence: 99%

Optimal operation of evaporative cooling pads: A review

Tejero‐González

Franco-Salas

2021

Renewable and Sustainable Energy Reviews

View full text Add to dashboard Cite

Direct evaporative cooling is widely known for being an energy efficient air conditioning solution for arid and/or semi-arid climates. Commercialized evaporative cooling pads vary in material and construction characteristics, while existing research proposes several alternative wetted media and configurations. The most studied factors on the evaporative cooling pads operation are the air velocity or air mass flow rate, air psychrometric conditions; the pad thickness, its geometric characteristics and configuration, and the water flow rate supplied. The pads performance is commonly characterized through its saturation effectiveness, pressure drop, temperature drop and humidity increase achieved in the treated air, water evaporation and consumption, cooling capacity, coefficient of performance and the heat and mass transfer coefficients. Present work conducts a critical review on the existing experimental and theoretical research on commercial and alternative wetted media, identifies the gaps in the literature, proposes uniform nomenclature and methodologies, and provides a critical view on the optimal operating conditions from wetted-surface evaporative coolers.

show abstract

Section: Pad Geometric Characteristics and Configurationmentioning

confidence: 99%

Optimal operation of evaporative cooling pads: A review

Tejero‐González

Franco-Salas

2021

Renewable and Sustainable Energy Reviews

View full text Add to dashboard Cite

show abstract

“…In corrugated, rigid media, flute size, and angles would also play a role in pressure drop, which increases for flute sizes that yield a smaller separation between layers (Barzegar et al, 2012;Beshkani & Hosseini, 2006;A. Franco et al, 2010;Laknizi et al, 2021;Malli et al, 2011).…”

Section: Pressure Dropmentioning

confidence: 99%

“…In the experiments performed by Zeitoun et al (2014), it took 15-35 min to reach steady conditions in ceramic tubes. Laknizi et al (2021) recorded data for periods of over 3 h and found that outlet temperature and relative humidity remained constant. X.…”

Section: Transient and Steady-state Operationmentioning

confidence: 99%

“…Results available in the literature provide evidence on the effect of air velocity and pad thickness on the pressure drop for rigid media (A. Franco et al, 2010, 2011; Malli et al, 2011; Nada et al, 2019; Yan, He, Gao, et al, 2020), fiber pads (Doğramacı et al, 2019; Liao et al, 1998; Soponpongpipat & Kositchaimongkol, 2011), and fill pads (Gunhan et al, 2007; S. He, Guan, Gurgenci, Hooman, Lu, & Alkhedhair, 2014; P. Martínez et al, ; Rosa et al, 2011). In corrugated, rigid media, flute size, and angles would also play a role in pressure drop, which increases for flute sizes that yield a smaller separation between layers (Barzegar et al, 2012; Beshkani & Hosseini, 2006; A. Franco et al, 2010; Laknizi et al, 2021; Malli et al, 2011).…”

Section: Evaporative Cooling Performancementioning

confidence: 99%

“…In the experiments performed by Zeitoun et al (2014), it took 15–35 min to reach steady conditions in ceramic tubes. Laknizi et al (2021) recorded data for periods of over 3 h and found that outlet temperature and relative humidity remained constant. X. Chen et al (2018) started recording data each 20 s until their temperature and humidity sensors provided steady measurements.…”

Section: Evaporative Cooling Performancementioning

confidence: 99%

See 2 more Smart Citations

Direct evaporative cooling from wetted surfaces: Challenges for a clean air conditioning solution

Tejero‐González

Franco-Salas

2021

WIREs Energy & Environment

View full text Add to dashboard Cite

Evaporative cooling has a major role to play in fighting climate change and in achieving a low‐carbon economy. As it helps to reduce energy demand for air conditioning, it is gaining attention in terms of improving energy efficiency in buildings. Evaporative cooling from wetted media can enhance water–air contact, thereby improving heat and mass transfer further and avoiding aerosols. Wetted media are commonly called evaporative cooling pads and are widely used in greenhouses, intensive livestock farming, and industrial facilities. However, a deep understanding of evaporative cooling pad performance can enhance their application to indoor occupied spaces such as residential or commercial cooling, or in hybrid air conditioning systems. Most studies analyze pad performance mainly in terms of pressure drop and saturation effectiveness. However, some studies propose alternative cooling efficiency parameters and others provide insights into key aspects such as power requirements and the coefficient of performance, water consumption, risk of water entrainment, material decay, and air quality, as well as the effect of water temperature and salinity, solar radiation, or wind speed. Existing results on these less studied performance issues are reviewed, and we identify the gaps in the literature in addition to highlighting the main challenges encountered, in an effort to guide future researchers in the field and enhance the application of direct evaporative cooling. This article is categorized under: Energy Efficiency > Systems and Infrastructure Energy Systems Analysis > Systems and Infrastructure

show abstract