• Title/Summary/Keyword: 건물 에너지 시뮬레이션

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Development of Optimization Program for the Building Energy Efficiency Improvement (건물에너지 효율향상을 위한 최적화 툴의 개발)

  • Han, Soo-Gon;Ihm, Pyeong-Chan;Huh, Jung-Ho;Kwon, Han-Sol
    • Proceedings of the SAREK Conference
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    • 2005.11a
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    • pp.223-228
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    • 2005
  • This study develops an optimization program to use optimum design of building HVAC system reducing building energy use and cost. Doe20pt developed is an interface program between DOE2 and GenOpt to perform the optimization procedure more easily. The optimum results can be used to estimate the economical efficiency concerning the building management.

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A Study of renewable energy optimal design using the LCC analysis (LCC분석 기법을 활용한 신재생에너지 최적 설계 방안 연구)

  • Song, Ho-Yeol;Kim, Jeong-Uk
    • Journal of Energy Engineering
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    • v.24 no.2
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    • pp.45-50
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    • 2015
  • In Korea ranking sixth out of The world's greenhouse gas emissions, all Korean public buildings have to implement obligatorily renewable energy systems for energy production to reduce the greenhouse gas emissions from the energy consumed in operation, maintenance and management of buildings. The optimum combination and application rates for each energy source emerge from analyzing the trend of previous studies and the energy consumption is simulated by using a dynamic energy simulation program and the initial investment costs, the energy costs, the maintenance costs, the replacement costs emerge based on the calculated result. The result show that the total life cycle cost of 100% gerthermal is the lowest with \ 2,105,974,344 on the analysis results.

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%.

Interior Light Environment and Building Energy Performance Analysis of LED Lamp Installed in Office Building (LED램프를 적용한 사무소 건물의 실내조명환경 및 에너지 성능분석)

  • Kim, Byoung-Soo;Hong, Won-Pyo
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.24 no.5
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    • pp.77-85
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    • 2010
  • In this paper, A new integrated energy simulation results of LED lamp are presented to use it effectively in the office buildings. Generally LED lamp has many advantages in comparison with a general lamp such as long life and no pollution problem like the mercury. It also is excellent in color rendering and small consumption electric power. However LED lamp has some disadvantages to compare to general fluorescent lamp. It is small light flux about 50[%] and narrow light distribution than fluorescent lamp. Therefore, to apply LED lamp in an office building, the illuminance distribution with an environment analysis and cooling, heating and light energy has to be analyzed. The purpose of this study is to analyze light environment, light, cooling and heating energy simulation in office building.

Level of Detail (LOD) for Building Energy Conservation Measures (ECMs) (건물 에너지 절감조치의 시뮬레이션 모델링 상세수준)

  • Kim, Sean Hay
    • KIEAE Journal
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    • v.15 no.6
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    • pp.69-80
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    • 2015
  • Purpose: Since most simulation programs take the interface that lists up all the input variables representing all the functionalities, users must know where design variables of an Energy Conservation Measure (ECM) are located and also know what values are appropriate. This is why practitioner designers feel frustrated when they attempt to use simulation. The final objective of this study is to provide a building energy modeling guideline for practitioners in various fields such as architectural design and MEP. Method: As the first step of the modeling guideline, this study provides the Level of Detail (LOD) for simulation modeling of primary ECMs considering the design information available in each design phase. It is prepared by literature review, simulation functionality investigation, and field experts' survey. Result: The proposed simulation LOD offers a milestone at each design phases concerning what design variable and attributes need to be developed with how much of details in order to meet the project goal. Also each design team can set up a simulation usecase considering organizational characteristics based on the proposed LOD.

Optimal Capacity Determination of Hydrogen Fuel Cell Technology Based Trigeneration System And Prediction of Semi-closed Greenhouse Dynamic Energy Loads Using Building Energy Simulation (건물 에너지 시뮬레이션을 이용한 반밀폐형 온실의 동적 에너지 부하 예측 및 수소연료전지 3중 열병합 시스템 적정 용량 산정)

  • Seung-Hun Lee;Rack-Woo Kim;Chan-Min Kim;Hee-Woong Seok;Sungwook Yoon
    • Journal of Bio-Environment Control
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    • v.32 no.3
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    • pp.181-189
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    • 2023
  • Hydrogen has gained attention as an environmentally friendly energy source among various renewable options, however, its application in agriculture remains limited. This study aims to apply the hydrogen fuel cell triple heat-combining system, originally not designed for greenhouses, to greenhouses in order to save energy and reduce greenhouse gas emissions. This system can produce heating, cooling, and electricity from hydrogen while recovering waste heat. To implement a hydrogen fuel cell triple heat-combining system in a greenhouse, it is crucial to evaluate the greenhouse's heating and cooling load. Accurate analysis of these loads requires considering factors such as greenhouse configuration, existing heating and cooling systems, and specific crop types being cultivated. Consequently, this study aimed to estimate the cooling and heating load using building energy simulation (BES). This study collected and analyzed meteorological data from 2012 to 2021 for semi-enclosed greenhouses cultivating tomatoes in Jeonju City. The covering material and framework were modeled based on the greenhouse design, and crop energy and soil energy were taken into account. To verify the effectiveness of the building energy simulation, we conducted analyses with and without crops, as well as static and dynamic energy analyses. Furthermore, we calculated the average maximum heating capacity of 449,578 kJ·h-1 and the average cooling capacity of 431,187 kJ·h-1 from the monthly maximum cooling and heating load analyses.

A Study on Development of New Assessment Method for the Energy Performance in G-SEED using Dynamic Building Energy Simulation Programs (동적 건물에너지 시뮬레이션을 이용한 G-SEED 에너지성능 평가지침 도입 방안에 관한 기초연구)

  • Kim, Kee Han;Chae, Chang-U;Cho, Dongwoo
    • Journal of the Architectural Institute of Korea Structure & Construction
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    • v.34 no.10
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    • pp.27-35
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    • 2018
  • In this paper, a fundamental study for developing and introducing a new assessment method of the 'Energy Performance' in G-SEED that uses dynamic building energy simulations was conducted by comparing and analyzing the corresponding issues of domestic and foreign green building certification systems. The most significant part of the new assessment method to be developed was a development of a modeling guideline for a reference building using dynamic building energy simulations. In this paper, the composition and detailed contents of the guideline was created to comply with domestic energy codes. In addition, one of the most influential part of the result in the simulations, the 24-hour building operation schedule for a reference building, was created considering the equity with the ECO2 program that is the evaluation tool of one of the current assessment methods in the "Energy Performance". In order to improve the completeness of this guideline, it is necessary to continue the process of supplementation in the future, however, this paper is expected to be of great significance as the beginning of the research.

Measurement and Simulation of Interior Luminous Environment for the Decision Process of Building Remodeling (건물 개보수의 의사결정과정에서 필요한 실내의 빛환경 측정 및 시뮬레이션 -사례중심으로-)

  • 최안섭;성민기
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.15 no.5
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    • pp.8-13
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    • 2001
  • The make a decision for building remodeling, the economical value of the remodeled building should be analyzed and existing situation of the building system should be checked. For the energy issues related to the building remodeling process, careful diagnosis and re-designs of existing system should be proposed. In this research, the luminous environment for Seoul K Co. headquaters and Seoul S hotel were measured and then the re-design processes of building illumination systems were researched. With measured illuminance quantities of there cases, computer simulations for the existing situation and re-design were conducted.

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