A Field Measurement of Thermal Comfort in Semi Outdoor Space in Hot-Humid Climate

Abstract

Thermal comfort is still important in measuring the quality of a place. Many studies have been conducted to measure thermal comfort. In addition, other studies found that thermal comfort has improved user productivities. The last study resulted that thermal comfort in semi-outdoor space in the hot, humid climate, which case study was Canteen of Universitas Bandar Lampung (UBL) have not meet the human comfort standard based on user perception. Although this canteen is a semi-outdoor space, most of the users were feeling hot when fans were not using it. This paper aims to show a present study based on field measurement in that place. The measurement is carried out by thermometer, hygrometer, and anemometer. The thermometer used to measure temperature, hygrometer used to measure humidity, and anemometer used to measure air velocity. Field measurement was done in September and done every hour during work times in five days. The analysis method was done by using https://comfort.cbe.berkeley.edu/ to calculate Sensational, Predicted Mean Vote (PMV) and Predicted Percentage Dissatisfied (PPD). JMP statistics software is used to show the trend of PMV, PPD, and Sensational based on the calculation result. This study showed thermal sensation in Outdoor was nearly neutral, thermal sensation in Semi Outdoor D was nearest to slightly warm, at the same time it was also closer to neutral than other Semi Outdoor spots. In conclusion, thermal sensation in Semi Outdoor without a wall was accepted than in Semi Outdoor with a wall. If the manager wants to improve thermal comfort at that place, they must add fans as mechanical ventilation in Semi Outdoor A, B, and C. But, if they do not want to use that, they must renovate the place by omitting the wall.