• 제목/요약/키워드: micro climate

검색결과 169건 처리시간 0.021초

다목적 그린하우스의 동절기 실내온열환경 특성에 관한 실측 연구 (A Study on the Thermal Environment in the Multipurpose Greenhouse in Winter)

  • 김순주;나수연
    • 한국태양에너지학회 논문집
    • /
    • 제27권3호
    • /
    • pp.15-21
    • /
    • 2007
  • The purpose of this study is to provide the basic data for passive control and energy conservation strategies of multipurpose greenhouse. Passive design strategies which are appropriate to Jeju environmental circumstance were applied in the multipurpose greenhouse. The field measurement were conducted to examine relationship of micro climate and indoor thermal environment in the multipurpose greenhouse. The result of this study can be summarized as follow ; (1) The indoor temperature was ranged from 5 to $21^{\circ}C$ without a heating system, when the exterior temperature was -1 to $19^{\circ}C$. (2) The multi-purpose greenhouse requires almost no heating energy in winter, when it is used as a greenhouse, an exhibition hall or a cafeteria.

Thermal Distribution of Size-resolved Carbonaceous Aerosols and Water Soluble Organic Carbon in Emissions from Biomass Burning

  • Bae, Min-Suk;Park, Seung-Shik
    • Asian Journal of Atmospheric Environment
    • /
    • 제7권2호
    • /
    • pp.95-104
    • /
    • 2013
  • The study of carbonaceous aerosols in the atmosphere is critical to understand the role of aerosols in human health and climate. Using standardized thermal optical transmittance methods, organic carbon (OC), elemental carbon (EC), and water soluble organic carbon (WSOC) were determined using a combustion sampling system for four types of agricultural crop residues (rice straw, red pepper stems, soybean stems, and green perilla stems) and eight types of forest trees (pine stems, pine needles, ginkgo stems, ginkgo leaves, maple stems, maple leaves, cherry stems, and cherry leaves). The aerosol particles between 0.056 and $5.6{\mu}m$ in size were analyzed using a Micro-Orifice Uniform Deposit Impactor (MOUDI). In the current study, the Carbonaceous Thermal Distribution (CTD) by carbon analyzer was discussed in order to understand the carbon fractions from the twelve types of biomass burning. Also, the concentration of OC, EC, WSOC, and water insoluble organic carbon (WIOC) detected in the emissions were described.

The Current Distribution and Habitat Preferences of Hibernating Myotis formosus in Korea

  • Kim, Sun-Sook;Choi, Yu-Seong;Kim, Bong-Hyeon;Yoo, Jeong-Chil
    • Journal of Ecology and Environment
    • /
    • 제32권3호
    • /
    • pp.191-195
    • /
    • 2009
  • We monitored 38 hibernation sites of Myotis formosus in South Korea and recorded the number of bats occupying each site and assessed the micro-climate at the sites during four winters from 2005 to 2009 at. The mean rock temperature of the bat roosting sites was $13.2{\pm}1.4^{\circ}C$ and the mean body temperature of the hibernating bats was $13.3{\pm}1.3^{\circ}C$. The number of hibernating bats was negatively related to the size of the entrance and positively related to the minimum ambient temperature and humidity in the site interior. More bats hibernated in roosts with smaller entrances and higher minimum ambient temperatures, and more bats selected sites presenting a narrow temperature range. This study showed that the internal environments of hibernacula of M. formosus were highly stable despite dramatic variation in the external environment.

여름철 도시의 일상생활에서 경험하는 환경온도와 온냉감 평가 (24 hours' Exposed Temperature and Thermal Comfort in Summer)

  • 전정윤;이민정
    • 한국주거학회논문집
    • /
    • 제14권3호
    • /
    • pp.51-56
    • /
    • 2003
  • All the outdoor and indoor spaces are connected with each other. The human being moves toward those spaces with temperature fluctuation between the natural and artificial temperature. We conducted an experiment which subjects were wearing the data logger in urban life, and measured 24 hours' exposed temperature and thermal comfort in summer. Results were as follows. 1. Subjects controls their micro climate like this. Most of them(84.6%) get weather information. Fashion(46.2%) and weather(30.8%) are the reasons to select clothes. They spend their time in indoor environment for 84.92% hours of a day and have an air-conditioner(61.5%) in their houses. 2. Temperature fluctuation which subjects were exposed for 24 hours were from 15.6$^{\circ}C$ to 33.8$^{\circ}C$ and average fluctuation was 9.02$^{\circ}C$. The median value of experienced temperature were 26-26.5$^{\circ}C$ and average temperature was 26.18$^{\circ}C$. They experienced cold shock of 3.96 times in a day.

주거환경개선을 위한 주거지가로공간의 환경친화적 조성방안에 관한 연구 (A Study on the environmental friendly Construction of the Residential Street for Improvement Residential Environment)

  • 정응호
    • 한국주거학회논문집
    • /
    • 제8권3호
    • /
    • pp.209-218
    • /
    • 1997
  • The residential street is an area in which the residential function clearly predominates over any provisions for traffic. Therefore schoud it serve as a living space for the inhabitants. But in reccent times have motorists become lord and master through development and use according to the measure of automobile. As a result is being falling-off in the quality of residential environment particularly serious. This study have illustrated specially the environmental pollution (air pollution, micro climate. water balance and soil pollution) which the analysis of research data in foreign countrys. With that have this study proposed on the measures of the environmental friendly construction in residental street.

  • PDF

통기성 들뜨게가 고추 군락 내 미기상 및 생육에 미치는 효과 (Effect of Non-Woven Fabrics Covered above Canopy on Micro-Climate and Growth in Hot Pepper)

  • 전희;김현환;이시영;김경제
    • 한국생물환경조절학회:학술대회논문집
    • /
    • 한국생물환경조절학회 2002년도 학술발표논문집
    • /
    • pp.70-73
    • /
    • 2002
  • 노지고추는 재배면적이 2001년도에 74,471 ha 로서 원예작물 가운데 가장 많은 재배 면적을 가지고 있으며, 국민 식생활에 필수적인 양념채소이다. 이러한 고추는 최근 중국과 동남아 일대에서 값싼 노동력을 이용하여 국내 반입을 목적으로 재배되고 있다. 따라서 이들과 경쟁하기 위해서는 단위면적당 수량을 올리거나 고품질의 고추를 생산하지 않으면 재배와 판매 차원에서 어렵게 되어가고 있다. (중략)

  • PDF

새송이버섯 재배사의 환경인자 계측(III) -영구재배사를 중심으로- (Analysis of Environmental Factors in Pleurotus eryngii Cultivation House(III) -Based on Panel Type Structure-)

  • 서원명;윤용철
    • 한국농공학회:학술대회논문집
    • /
    • 한국농공학회 2005년도 학술발표논문집
    • /
    • pp.187-192
    • /
    • 2005
  • Pleurotus eryngii(King oyster) is one of the most promising mushrooms being produced on the domestic farms. The quality as well as quantity of Eryngii is sensitively affected by micro climate factors. To safely produce high-quality Eryngii all the year round, it is required that the environmental factors be carefully controlled by well designed structures equipped with various facilities and control systems. This study was carried out at the commercial mushroom cultivation houses to find out reasonable range of each environmental factor and yield together with economic and safe structures influencing on the optimal productivity of Eryngii. This experiment was conducted from Nov. 10, 2004 to Aug. 27, 2005 in Eryngii. cultivation houses. The environmental factors measured for this study were inside/outside temperature, relative humidity and $CO_2$ concentration in Pleurotus eryngii medium. In addition, the yield and quality of mushroom were made investigation. But the optimal productivity will be evaluated by considering the quality and quantity of mushroom production, energy requirements, facility construction and management cost, etc.

  • PDF

인공습지의 수질개선 효과 분석모델 개발 (Development of Pollutant Removal Model in the Artificial Wetland)

  • 최지용
    • 한국습지학회지
    • /
    • 제4권1호
    • /
    • pp.51-61
    • /
    • 2002
  • The wetland is a biologically integrated system consisting of water, soil, bacteria, plants, and animals. The wetland helps sustain the ecosystem, control the micro-climate and flood, maintain the ground water level, and provide fishing grounds. From the environmental standpoint, the wetland plays a vital role in reducing water pollution by filtering out sand and other polluted matters, producing oxygen, absorbing chemicals and nutrients. For these reasons, interest in restoring the wetlands has been steadily increasing. Artificial wetland, which is also referred to as created wetland or constructed wetland, is an alternative to natural wetland. Like natural wetland, artificial wetland is environmentally friendly and can effectively lower pollutant levels. The Korea government is actively reviewing the construction of artificial wetlands in mining and water supply areas to decrease nonpoint pollutant sources. This paper attempts to develop a pollutant removal model for the water quality improvement function of artificial wetlands. Artificial wetland can improve the quality of the water; however, depending on the type of water inflow, vegetation and hydrology, its effect can be different.

  • PDF

혹서기(酷暑期) 환경요인(環境要因)에 의한 전통주거건축(傳統住居建築)의 공간구성(空間構成)에 관한 연구 - 전북지방 농촌주택(農村住宅)을 중심으로 - (A Study on the Chracter of Spatial Organization in traditional House by hot Weather environmental Factors - Focused on the rural house in Chonbuk province -)

  • 김용집
    • 건축역사연구
    • /
    • 제7권2호
    • /
    • pp.49-62
    • /
    • 1998
  • The character of spatial organization in rtaditional house is found through the analysis of field survey and measure of its micro climate in hot weather period of summer. The mean temperature of interior space is higher than outside space of the house. In the point of structural conditions, inside of Choga in caustal and mountain area is cooler than any other houses. In inland area, slate roof house is cooler than Choga. In mountain area, the thermal difference of inside and outside in Kyubjib is higher than Hotjib. In the point of spatial conditions, kitchen is the coolest space and very suitable for spatial organization. Anbang is the hottest space because of its centeral position in the house. In wind condition, mountain area is windy and caustal area is calm. Around the house the rear side of the house is windy and left side is calm.

  • PDF

단열성능 향상 콘크리트의 현장 적용성 평가에 관한 연구 (Study on the Field Application of Insulation Performance Improvement Concrete)

  • 강성혁;김정호;추경남;박영신
    • 한국건축시공학회:학술대회논문집
    • /
    • 한국건축시공학회 2014년도 추계 학술논문 발표대회
    • /
    • pp.17-18
    • /
    • 2014
  • Recently, climate change have increased consumption of building heating and cooling energy. Therefore, various actions to reduce greenhouse gas and energy consumption have been prepared by world developed countries. The energy consumption by buildings approximately reaches 25% of total korea energy consumption. The greatest part in the buildings of the energy consumption is building facade. Especially the outer covering of the building has been made of concrete more than 70%. But a few research projects on concrete comprising more than 70% of outsider of buildings has been tried. This research is structural insulation concrete what improved insulation performance using Micro Form Admixture and Calcined Diatomite Powder and Lightweight Aggregate.

  • PDF