• Research Article

    Analysis of Thermal Characteristics of Multi-use Shopping Space in Summer according to Thermal Comfort Index

    온열 쾌적 지표에 따른 하절기 다중 이용 쇼핑 공간의 열적 특성 분석

    Ryu, Ji-Hye, Hong, Won-Hwa, Won, An-Na

    류지혜, 홍원화, 원안나

    Through Thermal Sensation Vote (TSV), Comfort Sensation Vote (CSV), Thermal Preference (TP), Predicted Mean Vote (PMV), and discomfort rate, we tried to … + READ MORE
    Through Thermal Sensation Vote (TSV), Comfort Sensation Vote (CSV), Thermal Preference (TP), Predicted Mean Vote (PMV), and discomfort rate, we tried to quantitatively evaluate the thermal comfort of shopping space users in various aspects. The TSV by time period was affected by the indoor temperature, and the response rate to the feeling of coolness tended to increase toward the afternoon. Through the CSV, it was found that the 24-26°C section is advantageous for thermal comfort. The TP temperature was derived as 24.59°C. The comfort temperature derived through the actually investigated TSV was 25.08°C, and the comfort temperature derived through the measured PMV was 22.19°C. There was a big difference in the thermal acceptance range of users on each specific floor. In the case of the first basement floor, it is thought that a cooling strategy to reduce the user’s discomfort should be reflected, and in the case of the 5th floor, it was found that there is room for overcooling. It is thought that if the cooling strategy is specifically prepared by reflecting the thermal characteristics of these users, it will be possible to secure the comfort of the indoor thermal environment and promote optimal energy saving. - COLLAPSE
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    30 April 2023

  • Research Article

    Proposal of G-SEED Improvement for Small Buildings - Focusing on the Analysis of the Small Housing of G-SEED -

    소규모건축물 대응을 위한 녹색건축 인증제도 개선 방향 제안 - 단독주택 인증제도 분석을 중심으로 -

    Yun, Yo-Sun, Seo, Sung-Mo

    윤요선, 서성모

    The present study proposes improvement directions for responding to small buildings when revising the G-SEED (Green Standard for Energy and Environmental Design) … + READ MORE
    The present study proposes improvement directions for responding to small buildings when revising the G-SEED (Green Standard for Energy and Environmental Design) in the future through the analysis of the system and current status of certification standards for small housing. G-SEED, the small housing standard, was introduced in 2012. However, the certification standards for small buildings are not separately operated. As such, standards for small housing are regulated in terms of certification days, review personnel, reviews, fees, and items. To analyze the difficulties encountered with small housing standards, the present study compared the scores of certified small and general buildings. As a result of comparing certification items, 9 items out of 20 items for small housing are the same, 8 items are easy, 1 item is difficult, and 2 items are evaluated only in small housing. For comparison of certification acquisition scores, buildings certified as general housing were converted into small housing standard scores and compared. The present study noted that in terms of certification acquisition scores, the average score for small housing was 60.78 points, which was approximately 4.6 points higher than that for general housing. However, buildings that scored high in general housing were downgraded. Next, directions for the regulation of small buildings in the G-SEED were reviewed. It is to operate certification items without classification of use by integrating the existing use classification system. At this time, the certification items can be diversified and differentiated within the items. Furthermore, adjustments to the level of difficulty of certification items for small building use are essential. To reflect small buildings in the G-SEED, the most important adjustments to system operation include introducing guidelines for the use and characteristics of small buildings, clarifying the certification audit documents, and simplifying the process of certification. - COLLAPSE
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    30 April 2023

  • Research Article

    A Study on Development of Real-Time Monitoring Platform based on IoT for Building Fire Safety Management

    건물 소방안전관리를 위한 IoT 기반의 실시간 모니터링 플랫폼 개발에 관한 연구

    Joe, Goo-Sang, Park, Sang-Hoon

    조구상, 박상훈

    According to the government’s special fire investigation, the normal operation rate of fire- fighting equipment is only 40%. A remarkably low level … + READ MORE
    According to the government’s special fire investigation, the normal operation rate of fire- fighting equipment is only 40%. A remarkably low level of fire-fighting equipment’s operation rate is caused by intentional power off of equipment and absence of integrated management system. This conditions can cause delay the golden time of fire accidents and huge damage of human and property due to fire. As a first step to fundamentally solve these problems, this paper aims to detect malfunctions in firefighting equipment and build a real-time monitoring platform to reduce non-fire alarms and strengthen management systems. The platform developed in this study is a system capable of regular fire monitoring and state control of fire-fighting equipment, and can improve the safety management function of building fire-fighting equipment by providing fire alarm propagation and normal operating status information of fire-fighting equipment. In addition, it will be possible to provide a fire safety management environment that can collect/ analyze/report the cause of failure, rather than simply determining whether there is an abnormality in fire-fighting equipment and whether or not there is a system failure. - COLLAPSE
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    30 April 2023

  • Research Article

    Effects of Floor Impact Sound Reduction Performance according to Apartment Type

    공동주택 유형에 따른 바닥충격음 차단성능 영향

    Yeon, Jun-Oh, Moon, Soon-Seong, Kim, Yong-Hee

    연준오, 문순성, 김용희

    In this study analyzed the factors affecting the performance of floor impact sound in the Republic of Korea apartment house. In addition, … + READ MORE
    In this study analyzed the factors affecting the performance of floor impact sound in the Republic of Korea apartment house. In addition, the performance of Heavy-weight impact sound and Light-weight impact sound was analyzed according to the supply area among the analysis factors. Among the approximately 628 households surveyed, the ratio of 37 to 74 m2 was the highest at 40%. More than 99% of the architectural styles are wall structures apartments. In addition, the composition ratio of the type of room (living room and room) arranged in the front was high at about 44% in 4 Bays. Wooden flooring was found to be about 81% of the type of flooring installed on the finish mortar. In addition, in the case of the receive room ceiling structure, it was found that the well type sealing system was installed at a rate of about 75%. Among the analyzed apartment building elements, this paper examined the performance of reducing heavy-weight impact sound according to the supply area. As a result, depending on the supply area, the average single-number quality (SNQ) value was less than 50 dB, but many households exceeded the minimum standard of 50 dB. In the case of light-weight impact sound, it was found that most of the minimum standard 58 dB was met regardless of the supply area. - COLLAPSE
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    30 April 2023

  • Research Article

    A Study on Optimal Thermal Output Conditions for Radiant Ceiling Heating Panel in Perimeter Zone to Improve Thermal Comfort

    건물 외주부 열쾌적성 향상을 위한 천장복사난방패널의 방열 조건 설정에 관한 연구

    Joe, Goo-Sang, Park, Sang-Hoon

    조구상, 박상훈

    Due to COVID-19, in office buildings frequented by an unspecified number of people air currents discharged from convective heating systems installed near … + READ MORE
    Due to COVID-19, in office buildings frequented by an unspecified number of people air currents discharged from convective heating systems installed near the ceiling or windows to handle envelope load are believed to be the main cause of the spread of virus. Consequently, the need for radiant ceiling heating panel, which utilize the principle of natural convection, is becoming increasingly significant. To replace convective heating systems and apply radiant ceiling heating panel, it is necessary to examine whether they can promptly respond to changes in the envelope load and secure the thermal output required to handle the heating load without causing discomfort, such as downdraft. In this study, the applicability of radiant ceiling heating panel to the perimeter zone in terms of thermal comfort was evaluated. To achieve this, the thermal characteristics of radiant ceiling heating panel were examined, and a simulation model capable of evaluating the thermal comfort of radiant ceiling heating panel applied to the perimeter zone was constructed. Based on the results of the thermal comfort assessment, thermal output conditions for applying radiant ceiling heating panel to the perimeter zone were proposed. - COLLAPSE
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    30 April 2023
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