Enhancement of thermal comfort in a large space building

Kamar, Haslinda Mohamed; Kamsah, Nazri; Ghaleb, Fuad A.; Alhamid, Muhammad Idrus

doi:10.1016/j.aej.2018.12.011

Cited by 43 publications

(13 citation statements)

References 26 publications

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“…The study of Noman et al [10] directed the installation of the four exhaust fan on the wall of the workplace to help enhance thermal comfort. Another researcher Kamar et al [41], informed that thermal comfort can increase by installing ten exhaust fans on the wall with different air supplies of the normal/typical wall fan because these implementations are convenient and can implement immediately. While it also does not consume much power.…”

Section: Conservation Of Momentummentioning

confidence: 99%

Enhancement of Thermal Comfort Inside the Kitchen of Non-Airconditioned Railway Pantry Car

Alam¹,

Salve²

2021

IJHT

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There are ample literature studies available, focusing on hot-humid built environment, which have achieved an increase in thermal comfort conditions by proper installation of ventilation-systems. The present thermal comfort study has been carried out in the kitchen environment of a non-air-conditioned railway pantry car in Indian Railways. The purpose is to enhance thermal comfort level under the currently applied ventilation system inside the kitchen of pantry car by determining the standard effective temperature (SET) index. During the summer and winter seasons, a field study was carried out to obtain the value of air temperature, globe temperature, relative humidity, and air velocity inside the pantry car for estimation of the SET index. A computational fluid dynamics (CFD) analysis was used to obtain a better-modified case model of the pantry car kitchen for the improvement of thermal comfort. The design interventions for the pantry car kitchen were created, with emphasis on increasing energy efficiency based on low-power consumption air ventilation system. The study results indicated that, modified case-I model has a better ventilation design concept as compare to the existing and other models, which increased the air velocity and significantly decreased the air temperature inside the kitchen of pantry car at all cooking periods. A value of SET (28.6–30℃) was found with a comfortable thermal sensation within all cooking periods, which is better for the pantry car workers. This finding suggests a sustainable improvement in the thermal environment of the "non-air-conditioned" pantry car kitchen in the Indian Railways, which can be applied immediately.

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Section: Conservation Of Momentummentioning

confidence: 99%

Enhancement of Thermal Comfort Inside the Kitchen of Non-Airconditioned Railway Pantry Car

Alam¹,

Salve²

2021

IJHT

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“…wearing lighter clothes). Kamar et al [17] developed a simple strategy for improving thermal comfort inside a mosque building in Malaysia. The authors suggested installing exhaust fans which have a potential of reducing the percentage of dissatisfied people by 87-91%.…”

Section: Introductionmentioning

confidence: 99%

Data Acquisition Technologies for Assessing Thermal Comfort in the Built Environment

Kuru¹,

Çalış²

2021

Pol. J. Environ. Stud.

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Nowadays, many buildings are equipped with sensors that acquire large amounts of data, which can be useful to monitor, to understand and to identify thermal comfort conditions in buildings. The studies on thermal comfort of building interior spaces are not only numerical analysis based on program outcomes, but also experimental studies to confirm the results of the analysis. However, the most important factor in achieving the correct result in experimental analysis is to plan the data, to select the technology and to determine the test procedure. This study aims at providing an important source for experimental researchers working on thermal comfort by identifying data acquisition technologies that are utilized for capturing thermal comfort related data. Within this context, the study presents existing instruments utilized for monitoring thermal comfort conditions and provides a guideline with respect to technical properties, deployment strategies and time intervals. The findings of this study will be beneficial to practitioners and researchers for selecting and utilizing the most appropriate data acquisition technology for assessing thermal comfort in indoor environments.

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“…Several studies have been performed to evaluate the IAQ and ventilation effectiveness when different ventilation types are installed in large indoor spaces. Although mixing ventilation dominates in large indoor spaces, in the literature studies considering alternative ventilation solutions are also found, including natural and mechanical ventilation [1,[6][7][8], displacement ventilation [8,9], and changing of the position of extract fans [10,11]. The use of mechanical ventilation with the contributions of different heat-gain sources [12] are also reported in the literature.…”

Section: Introductionmentioning

confidence: 99%

“…Computational fluid dynamics (CFD) methods are usually employed to further expand the investigated cases; however, in some cases studies are based merely on computational analysis [14,15]. Indoor thermal conditions indicators, such as the predicted mean vote (PMV) and the predicted percentage of dissatisfaction (PPD), introduced by Fanger in 1970 [16] and adopted by ISO Standard 7730:1994 [17], were also extracted in some cases [8,14].…”

Section: Introductionmentioning

confidence: 99%

“…The results showed that for those periods that the hall was occupied, the CO 2 concentration in the hall was below 800 ppm, which is an indication of good ventilation and IAQ. According to Kamar et al [8], installing exhaust fans with a 1 m diameter, at the height of 6 m from the floor, has the potential to reduce the PMV index by 75-95% and the PPD index by 87-91%. Another important aspect that significantly affects the indoor thermal conditions of sport halls concerns air recirculation.…”

Section: Introductionmentioning

confidence: 99%

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Field Measurements and Numerical Simulation for the Definition of the Thermal Stratification and Ventilation Performance in a Mechanically Ventilated Sports Hall

et al. 2019

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Sports halls must meet strict requirements for energy and indoor air quality (IAQ); therefore, there is a great challenge in the design of the heating, ventilation, and air conditioning (HVAC) systems of such buildings. IAQ in sports halls may be affected by thermal stratification, pollutants from different sources, the maintenance of building, and the HVAC system of the building, as well as by the activities performed inside the building. The aim of this study is to investigate thermal stratification conditions in accordance with the performance of the HVAC systems in the basketball training hall of Žalgirio Arena, Kaunas in Lithuania. Field measurements including temperature, relative humidity, and CO2 concentration were implemented between January and February in 2017. The temperature and relative humidity were measured at different heights (0.1, 1.7, 2.5, 3.9, 5.4, and 6.9 m) and at five different locations in the arena. Experimental results show that mixing the ventilation application together with air heating results in higher temperatures in the occupied zone than in the case of air heating without ventilation. Computational fluid dynamics (CFD) simulations revealed that using the same heating output as for warm air heating and underfloor heating, combined with mechanical mixing or displacement ventilation, ensures higher temperatures in the occupied zone, creating a potential for energy saving. An increase of air temperature was noticed from 3.9 m upwards. Since CO2 concentration near the ceiling was permissible, the study concluded that it is possible to recycle the air from the mentioned zone and use it again by mixing with the air of lower layers, thus saving energy for air heating.

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Enhancement of thermal comfort in a large space building

Cited by 43 publications

References 26 publications

Enhancement of Thermal Comfort Inside the Kitchen of Non-Airconditioned Railway Pantry Car

Enhancement of Thermal Comfort Inside the Kitchen of Non-Airconditioned Railway Pantry Car

Data Acquisition Technologies for Assessing Thermal Comfort in the Built Environment

Field Measurements and Numerical Simulation for the Definition of the Thermal Stratification and Ventilation Performance in a Mechanically Ventilated Sports Hall

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