Performance rating of glass windows and glass windows with films in aspect of thermal comfort and heat transmission

Chaiyapinunt, Somsak; Phueakphongsuriya, Bunyarit; Mongkornsaksit, Khemmachart; Khomporn, Nopparat

doi:10.1016/j.enbuild.2004.10.008

Cited by 80 publications

(61 citation statements)

References 3 publications

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“…This means that less than 15% of workers in G Building will be thermally satisfi ed and it shows 13.8% increasement from existing models. In sort, the modifi cation of building material, especially replace glass ceiling to refl ective clear glass 6 mm with transmittance 23% (Chaiyapinunt, Phueakphongsuriya, Mongkornsaksit & Khomporn, 2004) was successfully reduce PPD level.…”

Section: Thermal Comfort Calculation Of Modifi Cation Conditionsmentioning

confidence: 99%

Thermal comfort study of plastics manufacturing industry in converting process

Sugiono

Fardian

Novareza

2017

Przegląd Naukowy Inżynieria I Kształtowanie Środowiska

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Thermal comfort is one of ergonomics factors that can create a significant impact to workers performance. For a better thermal comfort, several environment factors (air temperature, wind speed and relative humidity) should be considered in this research. The object of the study is a building for converting process of plastics manufacturing industry located in Malang, Indonesia. The maximum air temperature inside the building can reach as high as 36°C. The result of this study shows that heat stress is dominantly caused by heat source from machine and wall building. The computational fluid dynamics (CFD) simulation is used to show the air characteristic through inside the building. By using the CFD simulation, some scenarios of solution are successfully presented. Employees thermal comfort was investigated based on predicted mean vote model (PMV) and predicted percentage of dissatisfied model (PPD). Existing condition gives PMV in range from 1.83 to 2.82 and PPD in range from 68.9 to 98%. Meanwhile, modification of ventilation and replacing ceiling material from clear glass into reflective clear glass gave significant impact to reduce PMV into range from 1.63 to 2.18 and PPD into range from 58.2 to 84.2%. In sort, new design converting building process has more comfortable for workers.

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Section: Thermal Comfort Calculation Of Modifi Cation Conditionsmentioning

confidence: 99%

Thermal comfort study of plastics manufacturing industry in converting process

Sugiono

Fardian

Novareza

2017

Przegląd Naukowy Inżynieria I Kształtowanie Środowiska

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“…Chaiyapinunt et al [10] have shown that the PPD value for the person who sits near the glass window can be classified as the PPD due to surface temperature and the PPD due to solar radiation. This relationship can be written as PPD(total) = PPD(surface temperature) + PPD(solar radiation) (6) where PPD(total) = PPD that accounted for the effect of solar radiation and the effect of surface temperature; PPD(surface temperature) = PPD that accounted for the effect of surface temperature.…”

Section: Thermal Comfort Indexmentioning

confidence: 99%

“…Sullivan [8] and Lyons et al [9] have developed the relation to calculate the PMV that accounted for the solar radiation effect. Chaiyapinunt et al [10] have done the performance rating on the glass windows and glass windows with films in term of thermal comfort and heat transmission. They have shown that the optical properties of the glass windows and glass windows with films have significantly impacted on the thermal performance both in term of thermal comfort and heat transmission.…”

Section: Introductionmentioning

confidence: 99%

An Investigation on the Human Thermal Comfort from a Glass Window

Khamporn¹,

Chaiyapinunt²

2014

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Abstract. The effect of the glass window on the thermal comfort of a person sitting near the glass window is investigated by performing the experiment in a test room. A clear glass window and a tinted glass window are chosen to be the test windows in this study. The index chosen to describe the thermal comfort is the predicted percentage of dissatisfied (PPD). The important parameter for evaluating the human thermal comfort condition is the mean radiant temperature. The mathematical model for predicting the mean radiant temperature is presented. The predicted mean radiant temperature and the mean radiant temperature evaluated from the operative temperature are compared. The agreement is good. It is found that the mean radiant temperature, the predicted mean vote (PMV) and the PPD are all dependent on the transmitted solar radiation and the surface temperature of the glass window. Higher value of the mean radiant temperature yields higher value of the PMV and the PPD. The room with a clear glass window installed has a high thermal discomfort condition which is mainly come from the solar radiation. The amount of the thermal discomfort is directly varied with the amount of the transmitted solar radiation. For a high transmittance glass window, the thermal discomfort due to solar radiation is greater than the thermal discomfort due to surface temperature. For a low transmittance (high absorptance) glass window, the thermal discomfort due to surface temperature becomes important when compared to the thermal discomfort in the part of solar radiation.

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“…Referring to field survey performed by Steward [19] , visual comfort may have certain level of influence towards general comfort of students and amount of daylight as a possible influence upon behavior was notified. Natural lighting is available via windows in the location being surveyed, as solar emission into buildings is normally encountered in the tropical countries [20] . The enclosed lift lobby is installed with artificial lighting, as required by local building standards.…”

Section: Visual Comfort Evaluation In Enclosed Lift Lobbymentioning

confidence: 99%

“…Slight majority of the respondents preferred to have lower illuminance level in the enclosed lift lobby during the survey being performed. As luminous comfort without artificial lighting is often based on the brightness of environment and emission from external daylight [20] , the luminous acceptability of respondents was based on the preference vote, where subjects who prefer darker and no-change to the existing environment were termed to be satisfied.…”

Section: Visual Comfort Evaluation In Enclosed Lift Lobbymentioning

confidence: 99%

Effect of Environmental Comfort Factors in Enclosed Transitional Space toward Work Productivity

Kwong¹,

Adam²,

Tang³

2009

American J. of Environmental Sciences

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Problem statement:The investigated area in this study was the enclosed lift lobby, which distinguishes itself as a unique form of region categorized under building transitional spaces. Such region may act upon on the work performance of occupants, as occupants are sensitive towards the conditions of immediate surroundings. The objective of this study was to investigate the occupants' perceptions of environmental comfort in the enclosed transitional region with identification of current thermal, visual and acoustic conditions, as well as the effect of the environmental conditions towards work performance. Approach: This survey was performed using both objective and subjective assessments, where comfort related parameters were measured using electronic sensors and the outcomes were analyzed concurrently with results from questionnaire. Results: The results showed that thermal comfort prevails over other two parameters in defining human comfort in the enclosed building area and presumed by most respondents to have more significant impact on work performance. Besides, the environmental factors of the enclosed transitional space exert different level of influences towards work productivity of building occupants. Conclusion: It was necessary to maintain the environmental conditions in the enclosed transitional space, similar to the commonly occupied areas within a building. Further investigation on the individual behavior of occupants in the enclosed region of a building was suggested.

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Performance rating of glass windows and glass windows with films in aspect of thermal comfort and heat transmission

Cited by 80 publications

References 3 publications

Thermal comfort study of plastics manufacturing industry in converting process

Thermal comfort study of plastics manufacturing industry in converting process

An Investigation on the Human Thermal Comfort from a Glass Window

Effect of Environmental Comfort Factors in Enclosed Transitional Space toward Work Productivity

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