• Title/Summary/Keyword: 연간 건물 부하

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Comparative Studies on Heating and Cooling Loads' of a Building Varied by Annual Weather Data (연도별 기상데이터를 활용한 건물의 냉.난방부하 특성 비교)

  • Lee, Ji-Hoon;Hwang, Kwang-Il
    • Journal of Navigation and Port Research
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    • v.35 no.3
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    • pp.265-270
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    • 2011
  • The purpose of this study is to compare and analyze the differences of a building's heating and cooling loads depending on the weather variation. Followings are the results. The temperature, humidity and wind speeds of standard year are bigger than those of 2006~2009. The 2006~2009's total horizontal solar irradiance is greater than that of standard year, and the direct solar irradiance of standard year is bigger in winter and vice versa in summer. As results of simulation on heating and cooling loads, it is difficult to find out the bilateral influences between maximum thermal loads and annual's. The equivalent-time operating ratio(EOR) is defined on this study to estimate the differences between year and year, and the EOR of standard year shows low value comparing to 2006~2009 years'.

A Survey on the Co-Generation Load for Large Commercial Buildings (대형상업건물의 열병합발전 부하조사)

  • 한승호;권순우;정상원;정재혁
    • Journal of Energy Engineering
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    • v.7 no.2
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    • pp.223-230
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    • 1998
  • Energy consumption statistics have been surveyed for 50 large commercial buildings with high energy consumption records in Seoul City. The buildings were classified into three different groups for data analysis: hospitals, hotels, and department stores/office buildings. The analysis was focused on identifying installed boiler and refrigerator data, energy consumption rates, and energy load distribution throughout the year. Refrigerating electricity was confirmed again to affect most on the formation of the summer electricity load peak as expected. Replacing the refrigerator electricity peak in the summer with co-generation in large commercial buildings. However, overall heat load distribution in a single building is still considered not large enough for economically feasible co-generation and thus joint co-generation for multiple neighboring buildings are preferred and the Electric Power Law and LNG pricing policy should be revised favorably for co-generation in advance.

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Recommended Practice for a Reasonable Power Density end Analysis of Power Consumption Capacity for the year in Large-scale Buildings (대형 건물의 연간 전기에너지 사용총량 및 전력원단위 분석에 관한 연구)

  • Kim, Se-Doug;Yoo, Sang-Bong
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.23 no.6
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    • pp.85-88
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    • 2009
  • This paper shows a reasonable power density, that was made by the systematic and statistical way considering actual conditions, such as investigated power consumption capacity for the year and peak power, contract power for the last 5 years of each customer for 23 general customers all data obtained by AMR. In this dissertation, it is necessary to analyze the key features from the investigated data. It made an analysis of the feature parameters, such as average, standard deviation, median, maximum, minimun and load factor.

Applied Technologies and Effects for the Carbon Zero Office Building (업무용 탄소제로건물의 적용기술 및 효과)

  • Lee, Jae-Bum;Hong, Sung-Chul;Beak, Name-Choon;Choi, Jin-Young;Hong, You-Deog;Lee, Suk-Jo;Lee, Dong-won
    • Journal of Climate Change Research
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    • v.2 no.4
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    • pp.283-295
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    • 2011
  • Many actions against climate change have been taken to reduce greenhouse gases (GHGs) emissions at home and abroad. As of 2007, the GHGs emitted from buildings accounted for about 23 % of Korea's total GHGs emission, which is the second largest GHG reduction potential following industry. In this study, we introduced Carbon Zero Building (CZB), which was constructed by the National Institute of Environmental Research to cut down GHGs from buildings in Korea, and evaluated the main applied technologies, the amount of energy load and reduced energy, and economic values for CZB to provide data that could be a basis in the future construction of this kind of carbon-neutral buildings. A total of 66 technologies were applied for this building in order to achieve carbon zero emissions. Applied technologies include 30 energy consumption reduction technologies, 18 energy efficiency technologies, and 5 eco-friendly technologies. Out of total annual energy load ($123.8kWh/m^2$), about 40% of energy load ($49kWh/m^2$) was reduced by using passive technologies such as super insulation and use of high efficiency equipments and the other 60% ($74.8kWh/m^2$) was reduced by using active technologies such as solar voltaic, solar thermal, and geothermal energy. The construction cost of CZB was 1.4 times higher than ordinary buildings. However, if active technologies are excluded, the construction cost is similar to that of ordinary buildings. It was estimated that we could save annually about 102 million won directly from energy saving and about 2.2 million won indirectly from additional saving by the reduction in GHGs and atmospheric pollutants. In terms of carbon, we could reduce 100 ton of $CO_2$ emissions per year. In our Life Cycle Cost (LCC) analysis, the Break Even Point (BEP) for the additional construction cost was estimated to be around 20.6 years.

Standard Weather Data for Seoul (동적열부하계산용 서울의 표준기상데이터)

  • Kim, Doo-Chun
    • The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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    • v.13 no.4
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    • pp.254-267
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    • 1984
  • 이 자료는 건물의 연간 에너지소요량의 산정을 위한 동적열부하계산용 전산프로그램의 입력자료인 서울의 평균년 기상데이터로서, 한국과학재단 연구보고서인 "서울지방의 표준기상데이터에 관한 연구"로 부터 발췌한 것이다.

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COMPARISON OF THE EFFECTS OF THERMAL MASS EXTERIOR WALLS ON HEATING AND COOLING LOADS IN COMMERCIAL BUILDINGS - Evaluation of Delta Load Concept Used in The Draft Standard ASHRAE 90. 1 - (상업용 건물에 있어서 외벽의 축열용량이 난방부하에 미치는 영향 연구 - ASHRAE Standard 90. 1안에서 사용된 Delta Load 개념의 평가 -)

  • Park, Sang-Dong;Kusuda, Tamami
    • The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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    • v.15 no.4
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    • pp.372-379
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    • 1986
  • 본고는 상업용 건물에 있어서의 냉난방부하에 대한 외벽의 축열(열용량)효과를 비교$\cdot$분석하는데 그 목적이 있다. 가장 최근에 발표된 에너지 해석 프로그램인 DOE-2.1C를 이용하여 Berkeley Solar Group (BSG) 이 제안한 축열효과를 분석하였다. 본 고에서의 축열효과는 "delta load"로서 표현되어 있으며 "delta load"는 전형적인 나무구조 건물과 벽돌조 건물의 연간 냉난방부하의 차이로서 표시된다. BSG 보고서에 의하면 delta load는 (1)구조물의 위치와 관련한 단열방법 (2)벽의 열용량 (3)벽의 열관류을 (4)기후조건에 따라 달라진다고 되어 있다. 본 고에서의 delta load 계산은 중규모 사무소 건물을 대상으로 하였으며 Lake Charles, LA와 Madison, WI 기후 데이터를 사용하였는데 DOE-2.1C 사용에 의한 delta load는 BSG의 결과와 일반적으로 잘 조화가 되는 것으로 나타났으나 외주부의 방향에 따른 dalta load와 난방에 있어서는 다소 큰 차이를 보여 주고 있으며, 외단열과 중간열의 효과는 BSG의 결과와 마찬가지로 비슷하였다.

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Study on the Annual Building Load Predicting Method using a Polynomial Function (다항함수를 이용한 건물의 연간부하 예측 방법에 관한 연구)

  • Yun, Hi-won;Choi, Seung-Hyuck;Ryu, Hyung-Kyou
    • Journal of the Korean Society for Geothermal and Hydrothermal Energy
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    • v.13 no.1
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    • pp.7-13
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    • 2017
  • In order to use and manage the building energy efficiently, it is necessary to minimize building energy consumptions, and establish operation plans of various equipment. The maximum heating and cooling load calculation is an essential way in various equipment selections, and the annual building load calculation is used in forecasting & evaluating the LCC required for operation plan. In this study, noting that the annual building load changes depending on outside temperature around year, we propose a predicting method of annual building load. By using the $4^{th}$ polynomial function that have two double radix and a feature the $f(x)=a^4$ in x = 0 condition, we can calculate annual building load very easily only with the two result (maximum heating and cooling load) and a minimum parameters.

Quantitation of n-Hexane Extractable Material (HEM) and Estimation of Annual Pollutant Loading Rate by Sewage Sludge Applicated to Land (하수슬러지 중 노말헥산추출물질 (HEM) 함량 분석 및 토양 시용시 연간 오염부하량 추정)

  • Nam, Jae-Jak;Park, Woo-Kyun;Lim, Dong-Kyu;Lee, Sang-Hak
    • Korean Journal of Environmental Agriculture
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    • v.21 no.1
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    • pp.45-49
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    • 2002
  • To estimate annual pollutant loading rate of n-hexane extractable material (HEM) to soil 84 sewage sludge samples were analyzed. The average content of HEM was 27.7$\pm$26.5 g/kg, and ranged from 1.05 to maximum 194 g/kg. According to the number of population of the city the areas were classified as five regions, i.e. big, large, middle, small, and rural area in which the waste water treated plants were grown. The contents of HEM were 22.7$\pm$16.7, 33.3$\pm$25.8, 22.0$\pm$8.7, 31.0$\pm$38.8, 27.7$\pm$25.1 g/kg, in big, large, middle, small, and rural area, respectively. The applicated areas with sewage sludge to land also were divided as 4 sites by US EPA criteria such as agricultural, forest, public contact sites, and reclamation site. The quantitation of annual pollutant loading rate was estimated using a function (99 percentile concentration = $\bar{X}$ + 3$\sigma$) when the application amounts were in dosages of 7,000, 26,000, 18,000, 74,000 kg/ha in 5 regions, respectively. The annual pollutant loading rate of HEM to soil by sewage sludge application was maximum 1,032, 3,832, 2,653, and 10,908 kg/ha in agricultural, forest, public contact sites, and reclamation site, respectively.

A Study on Standard Heating and Cooling Load according to Design Factors using Prototypical Load Model (표준부하모델을 이용한 설계 변수에 따른 표준부하량 분석)

  • Kim, Kwonye;Bae, Sangmu;Nam, Yujin
    • Journal of the Korean Society for Geothermal and Hydrothermal Energy
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    • v.17 no.1
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    • pp.1-13
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    • 2021
  • Before newly-built building and building remodeling, it is important to predict and analyze building energy performance through energy simulation programs. Nevertheless, simulation results widely vary depending on individual user experience and input values. Therefore, this study uses prototypical building model, a versatile tool in building energy modeling, simulation and research for researchers and policy-makers, and ASHRAE standards. Then, it analyzed the changes in design type (roof type, number of floors) for the base case. As the result, it was found that the gap of annual energy demand per between them is maximally 9.1%.

Heat Consumption Pattern Analysis by the Component Ratio of District Heating Users (지역난방 사용자 구성비에 따른 열소비 패턴 분석)

  • Lee, Hoon;Lee, Min-Kyun;Kim, Lae Hyun
    • Journal of Energy Engineering
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    • v.22 no.2
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    • pp.211-225
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    • 2013
  • To run an optimal operation of Integrated energy supply facilities, we need to analyze heat consumption patterns of District heating users and derive optimum and maximum load ratio of heat production facilities unit. This study selects three District heat production facilities. It also classifies District heating users into residential apartment buildings and eight non-residential buildings and analyzes heat consumption results for an year. Finally it carries out the analysis of how the ratio change of each type affects maximum load ratio, facility utilization ratio, heat supply range. According to this study, three different District heat facilities of residential apartment building show similar daily and annual heat consumption patterns. Annual average load ratio, maximum load ratio and annual heat demand increase as outdoor temperatures decrease. Non-residential buildings in urban District focused on apartment buildings display similar by the daily and annual heat consumption patterns. Yet their daily and annual maximum load ratio differ according to outdoor temperature, District, building types and their composition ratio. In the case of urban District focused on apartment buildings reach optimum and maximum load ratio when apartment buildings reaches 60-70% of the total. At that point heat supply range becomes maximized and the most economic efficiency is obtained.