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Indoor Air Quality Improvement by Simple Ventilated Practice and Sansevieria Trifasciata

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Environmental Science and Technology Program, Faculty of Science and Technology, Valaya Alongkorn Rajabhat University under the Royal Patronage, 1 Moo 20 Paholyothin Road, Klong Nueng, Khlong Luang, Pathum Thani 13180, Thailand
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Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus 83120, Thailand
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Andaman Environment and Natural Disaster Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus 83120, Thailand
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Authors to whom correspondence should be addressed.
Atmosphere 2020, 11(3), 271; https://doi.org/10.3390/atmos11030271
Received: 21 January 2020 / Revised: 28 February 2020 / Accepted: 3 March 2020 / Published: 9 March 2020
Optimum thermal comfort and good indoor air quality (IAQ) is important for occupants. In tropical region offices, an air conditioner is indispensable due to extreme high temperatures. However, the poor ventilation causes health issues. Therefore, the purpose of this study was to propose an improving IAQ method with low energy consumption. Temperature, relative humidity, and CO2 and CO concentration were monitored in a poorly ventilated office for one year to observe seasonal variation. The results showed that the maximum CO2 concentration was above the recommended level for comfort. Simple ventilated practices and placing a number of Sansevieria trifasciata (S. trifasciata) plants were applied to improve the IAQ with the focus on decreasing CO2 concentration as well as achieving energy saving. Reductions of 19.9%, 22.5%, and 58.2% of the CO2 concentration were achieved by ventilation through the door during lunchtime, morning, and full working period, respectively. Placing S. trifasciata in the office could reduce the CO2 concentration by 10.47%–19.29%. A computer simulation was created to observe the efficiency of simple practices to find the optimum conditions. An electricity cost saving of 24.3% was projected for the most feasible option with a consequent reduction in global warming potential, which also resulted in improved IAQ. View Full-Text
Keywords: computational fluid dynamics; CO2 concentration; indoor air quality; Sansevieria trifasciata; ventilation computational fluid dynamics; CO2 concentration; indoor air quality; Sansevieria trifasciata; ventilation
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Pamonpol, K.; Areerob, T.; Prueksakorn, K. Indoor Air Quality Improvement by Simple Ventilated Practice and Sansevieria Trifasciata. Atmosphere 2020, 11, 271.

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