Investigation On Indoor Environmental Quality Of Teaching Laboratory

Singaravelu, Karthigeyan (2016) Investigation On Indoor Environmental Quality Of Teaching Laboratory. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The main purpose of this study is to investigate the indoor environmental air quality and thermal comfort level in the laboratories located at Kompleks Makmal Kejuruteraan (KMK), Faculty of Mechanical Engineering, UTeM. The selected laboratories are CAE laboratory for the condition of air conditioned system and fabrication laboratory for the condition of naturally ventilated system. The experiments for physical parameters measurements were carried out with occupants and without occupants condition. A questionnaire survey form was also given to students at the both laboratories to compare the thermal comfort responses by the laboratory occupants. The results obtained were compared with the ASHRAE Standard 55 (2004) and Malaysia Standard MS 1525:2014. The analysis of this study were done by using DeltaLog10 software. This includes the results of Predicted Mean Vote (PMV) and Predicted Percentage of Dissatisfied (PPD) index for physical measurements and Thermal Sensation Vote (TSV) through subjective assessment. Besides that, carbon dioxide (CO2) concentration and dust level were also measured at CAE laboratory and fabrication laboratory in order to evaluate the amount of ventilation and general comfort. According to the results obtained, CAE laboratory satisfy the range of values set by the ASHRAE Standard 55 and MS1525:2014. However, the physical air parameters obtained in fabrication laboratory did not comply the range set by the standards. Besides that, the results obtained for PMV and PPD index for both of the laboratories were did not comply with the standards. Yet, the CO2 concentration and dust level are still in range and comply with the standards. Based on the findings, technical design improvements are recommended in this study in order to improve the indoor environmental condition and thermal comfort level in the laboratories.

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