Investigation of combined ventilation in the comfort conditions of an isolated room
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Abstract
An air conditioning system is characterized as a device that controls the air's temperature, flow, and humidity within a specific space. If an air conditioning system can guarantee that a room is comfortable, then it functions well. This investigation has assessed the properties of air dispersion and evaluated the factors and conditions outside the classroom. These variables include temperature, relative humidity, air speed, and CO2 content. The average relative humidity of the air exhibits a similar pattern to that of the average CO2 concentration, beginning to decline as air input via the valve increases. Furthermore, CO2 content is a primary determinant of indoor air quality; numerical simulation results are used to assess its value in relation to people's mouths and noses. Because of its distance from the flow source, the air velocity distribution near the ground is minimal and falls within the advised thermal comfort range. The room's air temperature is managed by the existing ceiling air conditioner, which enters the space at a 45-degree angle. An excellent combination of appropriate room air quality conditions and energy conservation can be accomplished by utilizing the ceiling cooler and the ventilation system's airflow rate.
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References
J. Sundell, “On the history of indoor air quality and health,” Indoor Air, Suppl., vol. 14, no. SUPPL. 7, pp. 51–58, 2004, doi: 10.1111/j.1600-0668.2004.00273.x.
K. Gungor, M. Airah, and N. Disney, “Guide to air change effectiveness,” no. Figure 1.Ecolibrium, pp.33-39, 2013.
S. C. Turner et al., “ASHRAE STANDARD Thermal Environmental Conditions for Human Occupancy,” vol. 2010, 2011.
E. Bash, “Ashrae HOF 2001,” PhD Propos., vol. 1, 2015, doi: 10.1017/CBO9781107415324.004.
D. Bp, J. Continental, D. Hydrochloride, G. Simone, and D. Tpo, “Carbon Dioxide MSDS,” Carbon N. Y., vol. 1173, no. i, pp. 1–8, 2005.
R. Prill, “Why Measure Carbon Dioxide Inside Buildings?,” Washingt. State Univ. Ext. Energy …, pp. 1–5, 2000, [Online]. Available: http://68.179.221.23/Documents/CO2inbuildings.pdf.
D. Yang, “(12) United States Patent,” vol. 2, no. 12, 2016.
O. Bamodu, T. Yang, and D. Halim, “True Smart and Green City ? International Forum on Urbanism Numerical Investigation of Thermal Comfort in an Office Room With 4-Way Cassette Air-Conditioner,” doi: 10.3390/ifou-E009.True.
J. Lim, S. Chong, A. Husain, and T. B. Tuan, “Simulation of Airflow in Lecture Rooms.”
S. J. Emmerich, A. K. Persily, S. J. Emmerich, and A. K. Persily, “State-of-the-Art Review of CO 2 Demand Controlled Ventilation Technology and Application State-of-the-Art Review of CO 2 Demand Controlled Ventilation Technology and Application.”
E. Procedia, “(2017) A numerical simulation of air distribution in an office room ventilated by 4-way cassette air-conditioner,” Energy Procedia, vol. 105, pp. 2506–2511, 2017, doi: 10.1016/j.egypro.2017.03.722.
D. Houri, Y. Kanazawa, I. Morioka, and K. Matsumoto, “Indoor air quality of Tottori University lecture rooms and measures for decreasing carbon dioxide concentrations,” Yonago Acta Med., vol. 52, no. 2, pp. 77–84, 2009.
A. Simone and B. W. Olesen, “Experimental evaluation of air distribution in mechanically ventilated residential rooms : Thermal comfort and ventilation effectiveness,” vol. 60, pp. 28–37, 2013, doi: 10.1016/j.enbuild.2013.01.003.
N. Mahyuddin, H. B. Awbi, and M. Alshitawi, “The spatial distribution of carbon dioxide in rooms with particular application to classrooms,” Indoor Built Environ., vol. 23, no. 3, pp. 433–448, 2014, doi: 10.1177/1420326X13512142.
G. Cao et al., “A review of the performance of different ventilation and airflow distribution systems in buildings”, “SC,” Build. Environ. 2014.