• Title/Summary/Keyword: Energy and Consumption

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An Analysis on the Characteristics of Energy and Water Consumption in Urban Rental Apartment (도심(都心) 임대(賃貸)아파트의 에너지 및 상수(上水) 소비(消費) 특성(特性) 분석(分析))

  • Seo, Youn-Kyu;Kim, Joo-Young;Hong, Won-Hwa
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2008.11a
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    • pp.261-265
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    • 2008
  • To solve the lack of housing, our country has supplied an enormous volume of apartments, and these days it occupies 75% of our buildings. As apartments occupy most of our housings, the rate of energy usage from them are also high. On this, setting apartment energy reduction as a target, by researching the actual conditions of energy consumption and drawing a basis data, we can apply this as a way of saving energy, rationalization of the scale of energy supply facilities and a standard when planning facilities. To grasp the present condition of energy usage of the urban rental apartment, this research analysed the use of electricity, gas and water monthly and annually of a rental apartment that is located in Daegu. The results showed that in 2003 the electricity usage was 1,198MWh but 1,315MWh in 2007, which means 9% of electricity usage increases every year. The average of water usage was $85,072m^2$ per year and they used $604.2MJ/m^2$ Typical energy consumption unit on $74.4m^2$ of area and $448.8MJ/m^2$ on $105.8m^2$. By showing the usage of energy and water of the urban rental apartment, understanding the tendency and preparing an Typical energy consumption unit standard through this research, apartments should use energy more efficiently.

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Analysis of City Gas Consumption by Borough and Usage in Busan (부산시 구별 용도별 도시가스 소비 특성 분석)

  • Park, Yool;Park, Jong-Il
    • Journal of the Korean Society for Geothermal and Hydrothermal Energy
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    • v.7 no.1
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    • pp.65-71
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    • 2011
  • Recently, central and local governments of Korea have established and implemented various energy policies such as making energy map of city level and establishment of environment friendly city plan to materialize low carbon green city. To implement effectively these policies, however, conditions of energy consumption by each administrative district and each usage have to be verified exactly. This study is aimed to suggest a basic data for planing energy policy and energy demand prediction of city level by analyzing energy consumption unit and conditions of city gas by borough and usage in Busan.

Oil consumption and economic growth: A panel data analysis

  • Lim, Kyoung-Min;Lim, Seul-Ye;Yoo, Seung-Hoon
    • Journal of Energy Engineering
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    • v.23 no.3
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    • pp.66-71
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    • 2014
  • Oil is obviously vital for economic growth and industry development. This paper attempts to explore whether or not there is a inverted-U relationship between oil consumption and economic growth. To this end, we employ a panel data analysis with fixed effect or random effect models using the set of data from 61 countries for the year 1990-2008. In conclusion, a statistically significant inverted-U relationship between per capita consumption of oil and per capita GDP is found. However, the level of per capita GDP at the peak point of per capita oil consumption is estimated to be 65,072 in 2005 international constant dollars, which is much larger than economic scales of sampled countries. Thus, as per capita GDP grows, per capita oil consumption is predicted to increase until eventually reaching the peak.

Development of Bottom-up model for Residential Energy Consumption by Use (생활행위 분류에 의한 가정부문 용도별 에너지소비 분석모형 개발)

  • Lim, Ki Choo
    • Journal of Energy Engineering
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    • v.22 no.1
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    • pp.38-43
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    • 2013
  • There was a dire need to compile data about energy consumption data by use to analyze residential energy consumption patterns relating to changes in lifestyles, or changes in life behavior. Accordingly, bottom-up model for residential energy consumption by residential use was developed by life behavior classification in an attempt to analyze energy consumption. This paper multiplied each appliance's running times by each appliance by life behavior and built a residential bottoms-up model to figure out the energy consumption of each household. The uses by life behavior were broken down into lighting, heating, cooling, entertainment, obtaining information, hygiene, and cooking.

Correlation Analysis Between Fenestration Energy Consumption Efficiency Rating System and Building Energy Consumption (창호 에너지 소비 효율 등급제와 건물 에너지 소비의 상관관계 분석)

  • Kwak, Hee-Jeong;Jang, Hyang-In;Lee, Hyun-Soo;Eom, Jae-Yong;Suh, Seung-Jik
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.25 no.6
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    • pp.338-345
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    • 2013
  • The purpose of this study is to analyze the correlation between the 'Fenestration Energy Consumption Efficiency Rating System' (hereafter referred to as FECERS) and building energy consumption. 'EnergyPlus' was used for the calculation of energy consumption in apartments and office buildings, according to FECERS's rating and SHGC. The result indicates that the FECERS has high correlation with apartments, but has low correlation with office buildings. Also, it indicates that office buildings have a large impact from SHGC, which is not reflected in the FECERS. Consequently, the FECERS needs to be improved, by adding optical properties to assessment items. Additional study is required to establish the fenestration rating system, which, on the basis of this work, has high relevance to building energy consumption.

Simultaneous water and energy saving of wet cooling towers, modeling for a sample building

  • Ataei, Abtin;Choi, Jun-Ki;Hamidzadeh, Zeinab;Bagheri, Navid
    • Advances in environmental research
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    • v.4 no.3
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    • pp.173-181
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    • 2015
  • This article outlines a case study of water and energy savings in a typical building through a modelling process and analysis of simultaneous water-energy saving measures. Wet cooling towers are one of the most important equipments in buildings with a considerable amount of water and energy consumption. A variety of methods are provided to reduce water and energy consumption in these facilities. In this paper, thorough the modeling of a typical building, water and energy consumption are measured. Then, After application of modern methods known to be effective in saving water and energy, including the ozone treatment for cooling towers and shade installation for windows, i.e. fins and overhangs, the amount of water and energy saving are compared with the base case using the Simergy model. The annual water consumption of the building, by more than 50% reduction, has been reached to 500 cubic meters from 1024 cubic meters. The annual electric energy consumption has been decreased from 405,178 kWh to 340,944 kWh, which is about 16%. After modeling, monthly peak of electrical energy consumption of 49,428 has dropped to 40,562 kWh. The reduction of 18% in the monthly peak can largely reduce the expenses of electricity consumption at peak.

Study on the elements affecting energy consumption of general hospitals in Korea (국내 종합병원의 에너지 사용량에 영향을 미치는 요인 도출)

  • Jeong, Dawoon;Kim, Sunsook;Kim, Hyegi;Kwon, Soonjung
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.26 no.1
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    • pp.63-71
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    • 2020
  • Purpose : The purpose of this study is to analyze the elements that affect the energy consumption of general hospitals in Korea. Methods : Factors affecting energy consumption in general hospitals include facility elements and operating elements. The effects of these elements on energy consumption of general hospitals were analyzed by statistical methods such as t-test, anova, correlation analysis, and regression analysis. Results : Total floor area, number of operating rooms, number of MRI, number of staffs, and number of outpatients can be said as useful variables that can explain energy consumption in general hospitals. Implication : It is possible to save energy consumption in general hospitals by adjusting major variables that affect the energy consumption of general hospitals.

A study on analysis of energy consumption of Detached house by U-value and SCs of windows and Building Orientation (창의 종류 및 차폐계수 변화와 건물 향에 따른 단독주택의 에너지요구량 분석)

  • Jeong, Su-Hui;Park, Hyo-Sun;Lee, Byung-Yun
    • Journal of the Korean Solar Energy Society
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    • v.32 no.3
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    • pp.96-103
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    • 2012
  • Annual energy consumption in detached houses are affected mainly by thermal performance of envelope. In particular the performance of glasses are critical due to global wanning and climatic change. Therefore, this research analyzes annual consumption of cooling and heating energy with various combination of U-value, shading coefficient and building orientation. The simulation results shows that shading coefficient of glazing contributes to the changes of proportion of heating and cooling energy demand and the optimized shading coefficient for minimizing energy consumption varies with buildings orientation.

A Study on Analysis of Domestic Energy Consumption and Reduction Greenhouse Gas in Building (에너지 소비분석과 건축분야에서의 온실가스 저감 방안)

  • Park, Jong-Il;Park, Ryul
    • Journal of the Korean Society for Geothermal and Hydrothermal Energy
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    • v.8 no.1
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    • pp.1-6
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    • 2012
  • This study aims to analysis domestic energy consumption in Korea and reduction greenhouse gas by building mechanical system. At this point be tormented the energy depletion and climate change of earth are big problems on the eatrh. In this paper we will find out best methods to reduction greenhouse gas and energy consumption by practical building mechanical system. Enlargement of greenhome and building adopt, greenhouse gas exhaust reduction in building, publication of energy consumption rate, publish building energy management manual, etc.