Sustainable Hybrid Design to Ensure Efficiency and Air Quality of Solar Air Conditioning
Received: 3 April 2023 | Revised: 29 April 2023 | Accepted: 8 May 2023 | Online: 2 June 2023
Corresponding author: Mohamed Alquraish
Abstract
This research work aims to investigate and subsequently optimize the operating parameters that affect thermal comfort and indoor air quality in the school environment. The proposed design uses a coupling between solar ventilation and the absorption chiller-air conditioning. The heating tower of an adsorption chiller connected to an air conditioning system can be driven by the waste heat from a solar ventilation (exhausted hot air) system thank to this linkage. In order to simulate variables like the velocity magnitude distribution in the air-conditioned room, mathematical modeling is numerically executed. Air temperature evolution along the height of the conditioned room in the mid-length and the air velocity evolution along the length of the conditioned room in the mid-height are studied. According to the numerical simulation results, the inlet air temperature soars as the inlet air velocity rises. Inlet air velocities of 0.05m/s, 0.5m/s, and 1m/s are correlated with inlet air temperatures of 20.7°C, 21.2°C, and 21.3°C, respectively. We conclude that an inlet air velocity in the order of 1m/s (in relation to a maximized air change rate) is in agreement with the general ASHRAE standards for indoor air quality in the case of the school environment, coupled with the essential need to limit as much as possible the spread of viruses.
Keywords:
human comfort, solar air conditioning absorption, ventilationDownloads
References
G. Papadopoulos, "IEQ assessment in free-running university classrooms," Science and Technology for the Built Environment:, vol. 28, no. 7, pp. 823–842. DOI: https://doi.org/10.1080/23744731.2022.2052519
P. Rajagopalan, M. A. Andamon, and J. Woo, "Full article: Year long monitoring of indoor air quality and ventilation in school classrooms in Victoria, Australia," Architectural Science Review, vol. 65, no. 1, pp. 1–13, Oct. 2021. DOI: https://doi.org/10.1080/00038628.2021.1988892
R. Rabeharivelo, M. Kavraz, and C. Aygün, "Thermal comfort in classrooms considering a traditional wind tower in Trabzon through simulation," Building Simulation, vol. 15, pp. 401–418, 2022. DOI: https://doi.org/10.1007/s12273-021-0804-9
F. Babich, G. Torriani, J. Corona, and I. Lara-Ibeas, "Comparison of indoor air quality and thermal comfort standards and variations in exceedance for school buildings," Journal of Building Engineering, vol. 71, Jul. 2023, Art. no. 106405. DOI: https://doi.org/10.1016/j.jobe.2023.106405
E. Ding et al., "Ventilation and thermal conditions in secondary schools in the Netherlands: Effects of COVID-19 pandemic control and prevention measures," Building and Environment, vol. 229, Feb. 2023, Art. no. 109922. DOI: https://doi.org/10.1016/j.buildenv.2022.109922
A. Vignolo, A. P. Gómez, M. Draper, and M. Mendina, "Quantitative Assessment of Natural Ventilation in an Elementary School Classroom in the Context of COVID-19 and Its Impact in Airborne Transmission," Applied Sciences, vol. 12, no. 18, Jan. 2022, Art. no. 9261. DOI: https://doi.org/10.3390/app12189261
F. Nasri, F. Alqurashi, R. Nciri, and C. Ali, "Design and simulation of a novel solar air-conditioning system coupled with solar chimney," Sustainable Cities and Society, vol. 40, pp. 667–676, Jul. 2018. DOI: https://doi.org/10.1016/j.scs.2018.04.012
J. Shaeri, M. Mahdavinejad, and M. H. Pourghasemian, "A new design to create natural ventilation in buildings: Wind chimney," Journal of Building Engineering, vol. 59, Nov. 2022, Art. no. 105041. DOI: https://doi.org/10.1016/j.jobe.2022.105041
A. Oudrane, B. Aour, B. Zeghmati, X. Chesneau, and H. Massaoud, "Study and Simulation of the Density of the Incident Solar Flux on the Walls of a Building in Adrar, Algeria," Engineering, Technology & Applied Science Research, vol. 7, no. 5, pp. 1940–1945, Oct. 2017. DOI: https://doi.org/10.48084/etasr.1337
J. Yau, J. J. Wei, H. Wang, O. Eniola, and F. P. Ibitoye, "Modeling of the Internal Temperature for an Energy Saving Chinese Solar Greenhouse," Engineering, Technology & Applied Science Research, vol. 10, no. 5, pp. 6276–6281, Oct. 2020. DOI: https://doi.org/10.48084/etasr.3728
Y. Kassem, H. Gokcekus, and F. A. R. Agila, "Techno-Economic Feasibility Assessment for the promotion of Grid-Connected Rooftop PV Systems in Botswana: A Case Study," Engineering, Technology & Applied Science Research, vol. 13, no. 2, pp. 10328–10337, Apr. 2023. DOI: https://doi.org/10.48084/etasr.5668
A. Fouda, H. Elattar, S. Rubaiee, A. S. B. Mahfouz, and A. M. Alharbi, "Thermodynamic and Performance Assessment of an Innovative Solar-Assisted Tri-Generation System for Water Desalination, Air-Conditioning, and Power Generation," Engineering, Technology & Applied Science Research, vol. 12, no. 5, pp. 9316–9328, Oct. 2022. DOI: https://doi.org/10.48084/etasr.5237
2016 ASHRAE Handbook—HVAC Systems and Equipment. ASHRAE, 2008.
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