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Review on Effect in Closed Environment by Change in Design of the HVAC System

B Suresh, MD Azmatullah, Shyam Sunder


There has been a growing inclination towards intelligent HVAC systems in various indoor locations such as hospital rooms, patient wards, and reception halls. This report provides a comprehensive literature analysis on the utilisation of HVAC systems inside enclosed indoor environments. Firstly, we will examine the present condition of HVAC systems and prevalent concerns regarding ventilation. Next, we will explain the process of airflow modelling utilising computational fluid dynamics (CFD) within an enclosed setting. Next, we proceed to provide a clear definition of "HVAC systems" and explore into the various issues that occur in relation to their design and execution. Finally, this paper presents different possibilities for optimising HVAC systems and conserving energy.


HVAC, Indoor environment, Hospital, Patient ward, and temperature

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R. T. Wang, J. C. Wang, and S. L. Chen, “Investigations on Temperatures of the Flat Insert Mold Cavity Using VCRHCS with CFD Simulation,” Polymers (Basel)., vol. 14, no. 15, 2022, doi: 10.3390/polym14153181.

S. Saran et al., “Heating, ventilation and air conditioning (HVAC) in intensive care unit,” Crit. Care, vol. 24, no. 1, pp. 1–11, 2020, doi: 10.1186/s13054-020-02907-5.

C. Becchio, S. P. Corgnati, M. Vio, G. Crespi, L. Prendin, and M. Magagnini, “HVAC solutions for energy retrofitted hotel in Mediterranean area,” Energy Procedia, vol. 133, pp. 145–157, 2017, doi: 10.1016/j.egypro.2017.09.380.

L. Morales Escobar, J. Aguilar, A. Garces-Jimenez, J. A. Gutierrez De Mesa, and J. M. Gomez-Pulido, “Advanced fuzzy-logic-based context-driven control for HVAC management systems in buildings,” IEEE Access, vol. 8, pp. 16111–16126, 2020, doi: 10.1109/ACCESS.2020.2966545.

Y. D. Torres et al., “Heating ventilation and air-conditioned configurations for hotelsan approach review for the design and exploitation,” Energy Reports, vol. 6, no. April, pp. 487–497, 2020, doi: 10.1016/j.egyr.2020.09.026.

L. Li, Y. Wang, M. Wang, W. Hu, and Y. Sun, “Impacts of multiple factors on energy consumption of aging residential buildings based on a system dynamics model–Taking Northwest China as an example,” J. Build. Eng., vol. 44, no. April, p. 102595, 2021, doi: 10.1016/j.jobe.2021.102595.

M. G. Albayati, J. De Oliveira, P. Patil, R. Gorthala, and A. E. Thompson, “A market study of early adopters of fault detection and diagnosis tools for rooftop HVAC systems,” Energy Reports, vol. 8, pp. 14915–14933, 2022, doi: 10.1016/j.egyr.2022.11.017.

M. Sobhi, M. A. Fayad, A. M. Al Jubori, and T. Badawy, “Impact of spectators attendance on thermal ambience and water evaporation rate in an expansive competitive indoor swimming pool,” Case Stud. Therm. Eng., vol. 38, p. 102359, 2022, doi: 10.1016/j.csite.2022.102359.

F. Hou, J. Ma, H. H. L. Kwok, and J. C. P. Cheng, “Prediction and optimization of thermal comfort, IAQ and energy consumption of typical air-conditioned rooms based on a hybrid prediction model,” Build. Environ., vol. 225, no. November, 2022, doi: 10.1016/j.buildenv.2022.109576.

K. Sainath et al., “Overview of ‘HVAC Systems’ in General Aspects,” Int. J. Res. Appl. Sci. Eng. Technol., vol. 2, no. XII, pp. 558–569, 2014, [Online]. Available:

T. Lim and D. D. Kim, “Thermal Comfort Assessment of the Perimeter Zones by Using CFD Simulation,” Sustainability, vol. 14, no. 23, p. 15647, 2022, doi: 10.3390/su142315647.

F. N. Irani, M. Bakhtiaridoust, M. Yadegar, and N. Meskin, “A data-driven approach for fault diagnosis in multi-zone HVAC systems: Deep neural bilinear Koopman parity,” J. Build. Eng., vol. 76, no. April, p. 107127, 2023, doi: 10.1016/j.jobe.2023.107127.

N. C. Seong, J. H. Kim, and W. Choi, “Optimal control strategy for variable air volume air-conditioning systems using genetic algorithms,” Sustain., vol. 11, no. 18, pp. 1–12, 2019, doi: 10.3390/su11185122.

L. Lei, W. Chen, B. Wu, C. Chen, and W. Liu, “A building energy consumption prediction model based on rough set theory and deep learning algorithms,” Energy Build., vol. 240, p. 110886, 2021, doi: 10.1016/j.enbuild.2021.110886.

F. Ascione, R. F. De Masi, M. Mastellone, and G. P. Vanoli, “The design of safe classrooms of educational buildings for facing contagions and transmission of diseases: A novel approach combining audits, calibrated energy models, building performance (BPS) and computational fluid dynamic (CFD) simulations,” Energy Build., vol. 230, p. 110533, 2021, doi: 10.1016/j.enbuild.2020.110533.

H. Aulia, R. Budi, T. Faiz Dhiahaqi, and A. C. Ramadhani, “HVAC System Functionality with 3 Parameters such as Geometry Design,Duct Positions, and Cooling Time on Room Temperature Class III InpatientRoom at Bitung Hospital Based on Computational Fluid DynamicsSimulation,” no. January, 2023, [Online]. Available:

U. B. E. S. C. F. D. Co-simulation, “Case Study : Impacts of Air-Conditioner Air Supply Strategy on,” 2023.

P. Patel, R. Karmur, G. Choubey, and S. Tripathi, Recent Trends in Fluid Dynamics Research, no. January. 2022. doi: 10.1007/978-981-16-6928-6.

A. Surapaneni and H. Company, “HVAC Design Considerations and Indoor Environmental Optimizations for a Cannabis Flowering Room,” no. April, 2023.

S. O. D. Niaki, M. Pourfallah, and A. Z. Ghadi, “Feasibility and investigation of residential HVAC system with combined ground source heat pump and solar thermal collectors in different climates of Iran,” Int. J. Thermofluids, vol. 20, no. July, p. 100427, 2023, doi: 10.1016/j.ijft.2023.100427.

T. Tsoutsos, S. Tournaki, C. A. De Santos, and R. Vercellotti, “Nearly zero energy buildings application in mediterranean hotels,” Energy Procedia, vol. 42, pp. 230–238, 2013, doi: 10.1016/j.egypro.2013.11.023.

Q. Jiang, J. Chen, J. Hou, and Y. Liu, “Research on building energy management in HVAC control system for university library,” Energy Procedia, vol. 152, pp. 1164–1169, 2018, doi: 10.1016/j.egypro.2018.09.152.

L. Liang et al., “Comparative analysis of technical requirements for Heating, Ventilating, and Air Conditioning (HVAC) systems in high-biocontainment facility standards,” Biosaf. Heal., vol. 5, no. 1, pp. 1–7, 2023, doi: 10.1016/j.bsheal.2022.12.003.

A. Jahanbin and G. Semprini, “On the optimisation of age of the air in the breathing zone of floor heating systems: The role of ventilation design,” Energy Built Environ., no. July, 2022, doi: 10.1016/j.enbenv.2022.08.005.



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