Indoor environment analysis for new laboratories block of FKM

Dhanabalan, Suntaresan (2021) Indoor environment analysis for new laboratories block of FKM. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Thermal comfort condition features, which are indicators of user’s satisfaction in an environment. There are few environmental factors in thermal comfort such as air temperature, radian temperature, air velocity and relative humidity. The main purpose of this study is to investigate the thermal comfort level in the UTeM FKM laboratories block and compare with ASHRAE Standard 62.1-2016 and Malaysian Standard MS 1525-2019. The physical measurement carried out with occupants and without occupants condition in two selected laboratory which is HVAC and IDP laboratory. Two different session which is morning and evening selected for physical measurement to compare the indoor air quality (IAQ) parameters. IAQ parameters such as air temperature, relative humidity, air velocity, carbon dioxide level and air particles was recorded and compared with standard requirement. The average air temperature of HVAC and IDP laboratory was found 24.37 ºC and 28.78 ºC respectively which is air temperature of HVAC laboratory within the MS 1525-2019 standard requirement but IDP laboratory not acceptable. The analysis of this study included the Predicted Mean Vote (PMV) and Predicted Percentage of Dissatisfied (PPD) for physical measurement and also the clothing value and metabolic rate estimated using Delta-log software. Thermal Sensation Vote (TSV) was analysed in this study through subjective assessment which questionnaire survey among laboratory occupants. Based on findings, technical design suggestion such as RCI system, mechanical ventilation and exhaust fan are recommended in this study in order to improve thermal comfort in HVAC and IDP laboratory.

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