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Optimization of Design Parameters of a Fired Clay Plate Evaporative Heat Exchanger for Air Cooling in Hot and Dry Climates

Salifou CISSE, Benjamin KIEMA, Boureima KABORE, Germain Wende Pouire OUEDRAOGO, Sié KAM
DOI: http://dx.doi.org/10.21013/jas.v21.n2.p3
Abstract

This study focuses on the optimization of design parameters of an innovative evaporative heat exchanger based on fired clay plates, named “Argiclim,” with the aim of maximizing its air cooling performance in hot and dry climates, such as those prevailing in the Sahel region, where temperatures frequently exceed 40 °C with low relative humidity (74 %). By combining rigorous experimental data collected in the field and advanced numerical simulations performed using specialized software such as COMSOL Multiphysics and MATLAB, this research thoroughly investigates the influence of key parameters. These include the spacing between the plates (tested from 2 to 5.5 cm), the air flow velocity through the system (ranging from 0.2 to 4 m/s), as well as the inlet air temperature (35 to 45 °C) and relative humidity, reflecting local climatic conditions. The results reveal an optimal thermal effectiveness of 94 %, achieved with a plate spacing of 2 cm, enabling a significant air temperature reduction of 15 °C (from 44 °C to 29 °C), while the outlet relative humidity reaches 95 %. These performances position Argiclim as a sustainable and environmentally friendly solution to the climatic challenges faced by arid regions. Furthermore, the study provides practical recommendations for adapting the system, particularly by managing the high outlet humidity through devices such as ventilation or desiccation systems. This would broaden its potential applications, ranging from rural housing to public infrastructure, offering a viable alternative to conventional air conditioners in these demanding environments.

Keywords
Evaporative heat exchanger, fired clay, optimization, cooling, hot and dry climate.
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References

Cisse, Salifou, Abdoul Aziz Ouiminga, Arnaud Ouermi, Boureima Kabore, Sié Kam, and Dieudonné Joseph Bathiebo. (2025). “Experimental Study of Hygrothermal Exchanges in an Evaporative Heat Exchanger Based on Fired Clay Plates for Air Cooling in Hot and Dry Climates”. Physical Science International Journal 29 (4):123-32. https://doi.org/10.9734/psij/2025/v29i4894.

Ibrahim, Elfatih & Shao, Li & Riffat, Saffa. (2003). Performance of porous ceramic evaporators for building cooling application. Energy and Buildings. 35. 941-949. https://doi.org/10.1016/S0378-7788(03)00019-7.

Watt, J. R. (1963) Evaporative air conditioning. New York: The Industrial Press, p. 300.

He, J. and Hoyano, A. (2010) Experimental Study of Cooling Effects of a Passive Evaporative Cooling Wall Constructed of Porous Ceramics with High Water Soaking-Up Ability. Building and Environment, 45, 461-472.

https://doi.org/10.1016/j.buildenv.2009.07.002

Cisse, S., Kabore, B., Ouedraogo, G. W. P., Kam, S., Bathiebo, D. J. (2024). Numerical Study of an Evaporative Exchanger Based on Fired Clay. Science Research, 12(2), 20-27. https://doi.org/10.11648/j.sr.20241202.11

Cisse, S., Zoungrana, W., Nébié, J., Kaboré, B., Komi, N. B., et al. (2026). Modeling of Coupled Heat and Mass Transfer for the Optimization of Evaporative Cooling Using a Porous Clay Plate. American Journal of Modern Physics, 15(3), 86-95. https://doi.org/10.11648/j.ajmp.20261503.13

M. DAGUENET, (1985) “Séchoirs Solaires : Théorie et Pratique”, UNESCO, France.

Mojtabi, Abdelkader & PRAT, Marc & Quintard, Michel & Taine, Jean. (2019). Transferts de chaleur dans les milieux poreux - Conduction, convection, rayonnement. Physique énergétique. https://doi.org/10.51257/a-v2-be8250.

Whitaker, S. (1977) Simultaneous Heat Mass and Momentum Transfer in Porous Media: A Theory of Drying. In: Advances in Heat Transfer, Academic Press, Vol. 13, 119-203.

https://doi.org/10.1016/S0065-2717(08)70223-5

Cisse, Salifou, Abdoul Aziz Ouiminga, Arnaud Ouermi, Boureima Kabore, Sié Kam, and Dieudonné Joseph Bathiebo. (2025). “Experimental Study of Hygrothermal Exchanges in an Evaporative Heat Exchanger Based on Fired Clay Plates for Air Cooling in Hot and Dry Climates”. Physical Science International Journal 29 (4):123-32. https://doi.org/10.9734/psij/2025/v29i4894.

Ibrahim, Elfatih & Shao, Li & Riffat, Saffa. (2003). Performance of porous ceramic evaporators for building cooling application. Energy and Buildings. 35. 941-949. https://doi.org/10.1016/S0378-7788(03)00019-7.

Watt, J. R. (1963) Evaporative air conditioning. New York: The Industrial Press, p. 300.

He, J. and Hoyano, A. (2010) Experimental Study of Cooling Effects of a Passive Evaporative Cooling Wall Constructed of Porous Ceramics with High Water Soaking-Up Ability. Building and Environment, 45, 461-472.

https://doi.org/10.1016/j.buildenv.2009.07.002

Cisse, S., Kabore, B., Ouedraogo, G. W. P., Kam, S., Bathiebo, D. J. (2024). Numerical Study of an Evaporative Exchanger Based on Fired Clay. Science Research, 12(2), 20-27. https://doi.org/10.11648/j.sr.20241202.11

Cisse, S., Zoungrana, W., Nébié, J., Kaboré, B., Komi, N. B., et al. (2026). Modeling of Coupled Heat and Mass Transfer for the Optimization of Evaporative Cooling Using a Porous Clay Plate. American Journal of Modern Physics, 15(3), 86-95. https://doi.org/10.11648/j.ajmp.20261503.13

M. DAGUENET, (1985) “Séchoirs Solaires : Théorie et Pratique”, UNESCO, France.

Mojtabi, Abdelkader & PRAT, Marc & Quintard, Michel & Taine, Jean. (2019). Transferts de chaleur dans les milieux poreux - Conduction, convection, rayonnement. Physique énergétique. https://doi.org/10.51257/a-v2-be8250.

Whitaker, S. (1977) Simultaneous Heat Mass and Momentum Transfer in Porous Media: A Theory of Drying. In: Advances in Heat Transfer, Academic Press, Vol. 13, 119-203.

https://doi.org/10.1016/S0065-2717(08)70223-5

Mojtabi, Abdelkader & PRAT, Marc & Quintard, Michel & Taine, Jean. (2019). Transferts de chaleur dans les milieux poreux - Conduction, convection, rayonnement. Physique énergétique. https://doi.org/10.51257/a-v2-be8250

Daguenet, M. (1985) Généralités sur le séchage. In: Daguenet, M., Ed., Les séchoirs solaires: Théorie et pratique, UNESCO, Paris, 440-488.

Landis, Jay A., "Numerical Study of a Transpiration Cooled Rocket Nozzle" (1995). Theses and Dissertations. 6118. https://scholar.afit.edu/etd/6118

Heidarinejad, G., Bozorgmehr, M., Delfani, S., & Esmaeelian, J. (2009). Experimental investigation of two-stage indirect/direct evaporative cooling system in various climatic conditions. Building and Environment, 44, 2073–2079. https://doi.org/10.1016/j.buildenv.2009.02.017

Demis Pandelidis, Sergey Anisimov, (2015) Numerical analysis of the heat and mass transfer processes in selected M-Cycle heat exchangers for the dew point evaporative cooling, Energy Conversion and Management, vol 91 , PP. 63-83.

https://doi.org/10.1016/j.enconman.2014.11.008

Wu, J. M., Huang, X., & Zhang, H. (2009). Theoretical analysis on heat and mass transfer in a direct evaporative cooler. Applied Thermal Engineering, 29, 980 984. https://doi.org/10.1016/j.applthermaleng.20 08.05.016


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