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Environmental Design

2020

Thermal comfort

Articles 1 - 3 of 3

Full-Text Articles in Architecture

Experimental Study On Thermal Comfort Towards Increasing Temperature Set-Points In Air-Conditioned Office Spaces In A Tropical Region: A Case Study In Thailand, Tanadej Sikram, Masayuki Ichinose, Rumiko Sasaki Jan 2020

Experimental Study On Thermal Comfort Towards Increasing Temperature Set-Points In Air-Conditioned Office Spaces In A Tropical Region: A Case Study In Thailand, Tanadej Sikram, Masayuki Ichinose, Rumiko Sasaki

NAKHARA (Journal of Environmental Design and Planning)

Many countries propose indoor temperature set-points of air-conditioned offices to be comfortably sustainable and to reduce energy consumption. Even though there are recommendations for the optimum temperature-set-points, it is questionable how those values could be applied to the actual situation in a tropical region. This study aims to survey thermal performance and estimate thermal comfort in different set-points. In 2019, two air-conditioned office buildings were tested by increasing set-points from the actual value between 23 °C and 25 °C. Data loggers measuring thermal variables were installed in the offices and the questionnaire was distributed to evaluate human response. Considering the …


Development Of Guidelines For Enhancement Of Thermal Comfort And Energy Efficiency During Winter For Thailand's Senior Centers Using Surveys And Computer Simulation, Chorpech Panraluk, Atch Sreshthaputra Jan 2020

Development Of Guidelines For Enhancement Of Thermal Comfort And Energy Efficiency During Winter For Thailand's Senior Centers Using Surveys And Computer Simulation, Chorpech Panraluk, Atch Sreshthaputra

NAKHARA (Journal of Environmental Design and Planning)

The objective of this study is to develop guidelines for thermal comfort and energy efficiency for senior centers during winter. The study was conducted in Phitsanulok, Thailand and it three methods were applied in development of the guidelines: field survey, laboratory study, and simulation in scSTREAM - a CFD program -- and Visual DOE 4.0 program. With a temperature set-point of 25.0 °C in the existing air-conditioned senior centers, the study shows that occupants feel "Slightly cool". These feelings change to "Neutral" when natural ventilation and fans are used to generate air speed of 0.57 - 0.60 m/s during the …


The Correlation Between Occupant Thermal Comfort And Discomfort Glare In Office Buildings In The Tropics:A Case Study In Thailand, Kittiwoot Chaloeytoy, Masayuki Ichinose Jan 2020

The Correlation Between Occupant Thermal Comfort And Discomfort Glare In Office Buildings In The Tropics:A Case Study In Thailand, Kittiwoot Chaloeytoy, Masayuki Ichinose

NAKHARA (Journal of Environmental Design and Planning)

A buildings' glazed facades influence their inhabited occupants in terms of thermal comfort and discomfort glare. This study aims to clarify the correlation between them in a tropical context. The field study was performed in office spaces in Thailand using comfort indices evaluation, i.e. the predicted mean vote (PMV) and daylight glare probability (DGP), and questionnaire surveys to investigate local occupants' feedback. The statistical approaches indicated that the agreement between thermal comfort and discomfort glare variables could be observed with a glazing performance rating of the buildings and the occupants' sensation level. However, the usability of comfort indices must be …