• Title/Summary/Keyword: Thermal Environment

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A Study on the Convergence of Renovation Measures for Urban Ecological Park Considering the Thermal Environment in Summer - With a Case of Gildong Ecological Park - (여름철 열환경을 고려한 도시생태공원 리노베이션 방안 융합 연구 - 길동생태공원을 사례로 -)

  • Kwon, Ki Uk
    • Korea Science and Art Forum
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    • v.36
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    • pp.11-22
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    • 2018
  • This study recent changes in urban thermal environment caused by climate change generate diverse problems such as urban heat island effects, heat wave, and drought. Under this condition, with the increased perception and expectation of the quality of life, the urban citizens' desire for outdoor activities is increasing. This study conducted the thermal environment analysis focusing on the urban ecological park used by many urban citizens, and also suggested the renovation measures for urban ecological park considering the thermal environment. As the research site, the ecologically-favorable Gildong Ecological Pak with diverse space composition was selected. The measuring items were measured and analyzed by dividing them into thermal environment index and thermal comfort index. In the results of analysis in each type of park space, the forest zone showed the most favorable result. Based on such results, total three kinds of renovation measures for urban ecological park considering the thermal environment were suggested. Through this, the urban ecology park renovation plans were presented in three ways. The results of this study are meaningful in that it can be used as a base material for creating an ecological park considering the thermal environment.

A Study on the Improvement of Thermal Environment by a method using thermometers and computer simulations on the Atrium (실측 분석기법과 시뮬레이션 분석 기법에 의한 아트리움 열환경 개선에 관한 연구)

  • Lee, So-Yeun;An, Jung-Soo;Kim, Kang-Soo
    • Journal of the Korean Solar Energy Society
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    • v.29 no.5
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    • pp.28-34
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    • 2009
  • The atrium in the building has many advantages including its aesthetic and functional effect. But the upper part of the atrium has the thermal problem of overheating due to insolation through the window. But natural ventilation aided buoyancy effect can be a solution to make comfortable indoor environment. Proper design of openings is very important to improve thermal environment in the atrium. In this study, thermal evaluations were performed to improve thermal environment in the atrium. Indoor thermal environment of an atrium at Seoul was measured in the field and simulated with Computational Fluid Dynamics( CFD) code. The turbulent flow model adopted is $K-{\varepsilon}$ model. The results of computer simulations are compared with the measurements at the point in the atrium. In order to improve the indoor ventilation environment of the atrium, thermal environment evaluations of six alternatives were conducted. After evaluations of the results, the design guidelines of an atrium are suggested.

Granger Causality between Thermal Environment and PM10 of Seoul's 25 Districts (서울특별시 25개 자치구의 열환경과 미세먼지 간 Granger 인과관계)

  • Youn, Jee Min;Kim, Hyungkyoo
    • Journal of Environmental Science International
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    • v.31 no.1
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    • pp.9-21
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    • 2022
  • Today's cities require deeper understanding of the thermal environment and PM10 as their management becomes more critical. Based on these circumstances, this study investigated the Granger causality between the thermal environment and PM10 of the 25 districts of Seoul, the most populous and urbanized city in Korea. The results of the Granger causality test on the thermal environment and PM10 were classified into 12 types. Except for type 12, the temperature and urban island heat intensity of the other 11 types operated as a Granger-cause to each other in both directions. Temperature operates as a Granger-cause of urban island heat intensity in type 12. The PM10 level and urban pollution island intensity operated as a Granger-cause to each other in all districts. For types 1 and 2, thermal environment operated as a Granger-cause to PM10 in one direction, and type 3-type 12 confirmed that thermal environment and PM10 operated as a Granger-cause in both directions. Findings reveal the intricate causalities between thermal environment and PM10 at the district level and suggest mitigation strategies that are more location based.

Characteristics of Thermal Environment and Evaluation of Thermal Comfort in Task Area with Personal Air-Conditioning System(PACS) (개별공조시스템(PACA)을 적용한 작업공간에서의 온열환경 특성 및 쾌적성 평가)

  • 최익순;정광섭;박영철;한화택;이정재
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.13 no.2
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    • pp.106-114
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    • 2001
  • The office environment of the building has been significantly changed and the office automation(OA) for productivity improvement and efficiency has proceeded. According to thee trends, the concept of office environment was transferred from conventional \"working space\" to \"living space\" or \"creative space\". Thus, occupants in office building have demanded more comfortable and advanced task environment. The objective of this paper is to evaluate the indoor environment of working space with personal air conditioning system using the measurements of environmental comfort parameters and the questionnaire survey of occupants、 thermal sensation response to the environment.n response to the environment.

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A Study on the Analysis of Indoor Thermal Environment in Large Enclosure through Actual Measurement (실측을 통한 대규모 실내경기장의 온열환경 분석에 관한 연구)

  • Chae, Mun-Byoung;Yang, Jeong-Hoon;Choi, Dong-Ho;Seok, Ho-Tae
    • Proceedings of the SAREK Conference
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    • 2007.11a
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    • pp.3-8
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    • 2007
  • The purpose of this study is to grasp the characteristic of indoor thermal environment from large enclosures in connection with heating and cooling condition. This study has measured indoor thermal environment in winter and summer season. We examined indoor thermal environment of the large enclosures in this study which include vertical, horizontal temperature distribution and thermal comfort environment.

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The Effect of Plants and Waterscape Facilities on the Thermal Indoor Environment (실내에서 식물과 수경시설이 온열환경에 미치는 영향)

  • 정연승;박인환
    • Journal of the Korean Institute of Landscape Architecture
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    • v.27 no.1
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    • pp.19-28
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    • 1999
  • This survey is to investigate the effect of plants and waterscape facilities on the thermal indoor environment and to provide basic data for proper plant cultivation to enhance indoor landscape. The survey of the measure of comfort on the indoor environment for the residents of Taegu shows that the measure of comfort on the thermal-environment, which consist of temperature and humidity, has more negative responses than the measure on lighting . are . sound environment, which consists of air freshness, lighting condition and sound environment. The experiments on the effect of the amount of leaves and the distance of plants on the indoor thermal-environment are made. The experimental results illustrate that, as the capacity of a plant becomes greater and the distance from the plant shorter, the falling effect of temperature and the rising effect of humidity on the top of the plant are taken higher than on the side of the plant. When the same amount of leaves is set up, the distance range of the rising effect of humidity becomes wider than that of the falling effect of temperature. The investigation of the effect of waterscape facilities on the indoor thermal-environment shows that temperature and humidity of the space with installed waterscape facilities are lower and higher than without facilities, respectively.

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Analysis of Thermal Comfort Factor′s Distribution in Convective Heating Space (대류난방공간에서 온열쾌적조건의 분포상태 분석에 관한 연구)

  • 공성훈
    • Journal of the Korean housing association
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    • v.6 no.1
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    • pp.31-37
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    • 1995
  • The purpose of this study is to analyse the distribution of thermal sensation response and thermal environment condition in convective heating space. The contents of this study are as follows: 1)the spatial distributions of thermal conditions are measured 2)the thermal sensation vote of residents is taken in order to investigate the relation between thermal condition and human thermal sensation in sedentary condition 3)to analyse the distribution of subject's thermal sensation vote and thermal environment condition by two methods-regression method and graph method.

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The Experimental Study on Thermal Characteristics of PEM(Personal Environment Module) System (개별환경제어(PEM)시스템의 열적 특성 및 성능개선에 관한 연구)

  • 조성환;장철용;태춘섭
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.12 no.5
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    • pp.439-447
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    • 2000
  • The PEM(Personal Environment Module) system is an individual air conditioning system developed in order to improve thermal comfort in office buildings. In this study, thermal characteristics of a PEM system have measured experimentally and compared with UFAC(Under Floor hir Conditioning) system in the EC(Environment Chamber) constructed in KIER. Results showed that the PEM system was better than UFAC system for thermal comfort and energy conservation.

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The Analysis of Indoor Thermal Environment at the Korean Traditional House in the Winter (실측을 통한 동절기 전통가옥의 실내온열환경 분석)

  • Hwang, Hyo-Keun;Lim, Jong-Yeon;Song, Doo-Sam
    • 한국태양에너지학회:학술대회논문집
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    • 2008.04a
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    • pp.324-329
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    • 2008
  • Recently with the demand of well-being is increased, the demand for indoor thermal environment and air quality is increased. According to this circumstance, many people in Korea note the traditional architecture that is made by natural materials, such as a soil, stone and wood. However, few researches regarding the indoor thermal environmental characteristics of the Korean traditional houses is reported. In this study we analyzed the indoor thermal environment for Han-ok through field measurement. Moreover, based on the field measurement results. indoor thermal comfort in Han-ok is analyzed.

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