Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/211831
Title: A COMPARATIVE STUDY OF INDOOR AIR QUALITY AND THERMAL COMFORT IN THE NEW AND OLD CANTEENS IN NUS
Authors: REENA LEUNG ZI YING
Keywords: Indoor Air Quality
Thermal Comfort
NUS
Canteens
Issue Date: 3-Dec-2021
Citation: REENA LEUNG ZI YING (2021-12-03). A COMPARATIVE STUDY OF INDOOR AIR QUALITY AND THERMAL COMFORT IN THE NEW AND OLD CANTEENS IN NUS. ScholarBank@NUS Repository.
Abstract: Indoor air quality and thermal comfort have been discussed as poor performance could cause health problems. Techno Edge and DECK in NUS have always been the first choice for FASS, FOE and SDE students due to their proximity. This study aims to determine which air-conditioned canteen can provide better indoor air quality and thermal comfort during lunchtime (11 am to 3 pm). This study uses subjective and objective measurements. Results are compared with SS 554:2016 and SS 553:2016 to determine if they are acceptable. Techno Edge and DECK failed to meet the standards on relative humidity and operative temperature. DECK also failed to meet the air velocity standard. Other variables such as formaldehyde, total volatile organic compounds, PM2.5, PM10, bacteria count, carbon dioxide and carbon monoxide are acceptable. Neither canteen has reached ASHRAE 55-2020 at some point. Nevertheless, the survey results showed that most participants were satisfied with the indoor air quality and thermal comfort of the two canteens. Several diners at DECK pointed out that the air velocity in the canteen may be too high and the temperature is too low for them. The p-value of thermal comfort is <0.001, indicating that the thermal comfort of the two canteens is vastly different. The p-value of air quality is 0.727, indicating that the indoor air quality of the two canteens is similar. It is recommended to relocate the air cooler and replace it with fans for DECK and install a dehumidifier for Techno Edge.
URI: https://scholarbank.nus.edu.sg/handle/10635/211831
Appears in Collections:Bachelor's Theses

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