• Title/Summary/Keyword: 건물 에너지 절감조치

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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.

A Study on Methodology for Verifying Energy Saving and Activity in School (학교 건물에서의 에너지절감 성과 활동 검증을 위한 방법론 연구)

  • Lee, Hangju;Kim, Insoo
    • Journal of Energy Engineering
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    • v.29 no.1
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    • pp.25-33
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    • 2020
  • Recently, as the mandatory policy of zero energy building is promoted, policies / systems for transition to Zero Energy School are being promoted, but there is no method to systematically analyze and verify the results of energy saving activities for school buildings. For the study of energy performance verification methodology, the current status of related standards was referred to, and the case study of other methodologies was conducted to examine the tools that can analyze the performance in the field. In addition, this study analyzed the current status and characteristics of energy management through domestic school visits. In this paper, we presented various energy saving projects such as air conditioning and heating facilities, lighting, insulation, change operation behavior, and improve operation methods in new and existing school buildings, and M & V methods for verifying energy savings before and after implementation of energy conservation projects.

A Study on Development of Independent Low Power IoT Sensor Module for Zero Energy Buildings (제로 에너지 건축물을 위한 자립형 저전력 IoT 센서 모듈 개발에 대한 연구)

  • Kang, Ja-Yoon;Cho, Young-Chan;Kim, Hee-Jun
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.12 no.3
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    • pp.273-281
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    • 2019
  • The energy consumed by buildings among the total national energy consumption is more than 10% of the total. For this reason, Korea has adopted the zero energy building policy since 2025, and research on the energy saving technology of buildings has been demanded. Analysis of buildings' energy consumption patterns shows that lighting, heating and cooling energy account for more than 60% of total energy consumption, which is directly related to solar power acquisition and window opening and closing operation. In this paper, we have developed a low - power IoT sensor module for window system to transfer acquired information to building energy management system. This module transmits the external environment and window opening / closing status information to the building energy management system in real time, and constructs the network to actively take energy saving measures. The power used in the module is designed as an independent power source using solar power among the harvest energy. The topology of the power supply is a Buck converter, which is charged at 4V to the lithium ion battery through MPPT control, and the efficiency is about 85.87%. Communication is configured to be able to transmit in real time by applying WiFi. In order to reduce the power consumption of the module, we analyzed the hardware and software aspects and implemented a low power IoT sensor module.

A Comparative Study on Domestic and International Evaluation Criteria of Commissioning for Sustainable Building Certification (국내외 녹색건축인증에서의 커미셔닝 평가기준에 대한 비교 연구)

  • Jeong, Dahun;Jung, Chanwoo
    • Korean Journal of Construction Engineering and Management
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    • v.18 no.1
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    • pp.27-36
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    • 2017
  • Ministry of Land, Infrastructure and Transport established Heating and cooling energy conservation plan of apartment for 2017, reducing 90% compared to energy consumption of 1990. Also, at 2015 United Nations Climate Change Conference, the Ministry announced to reduce 37% of estimated $CO^2$ emission(850 million ton) at 2030. To satisfy this, it is urgent to reduce $CO^2$ emission due to the building, which takes majority amount of total $CO^2$ emission, and public interest for the commissioning of intensified building performance is uprising. However, the building commissioning at construction is not enacted, and not activated due to the lackness of promotion and will of general contractor. Furthermore, commissioning is not mandatory for obtaining G-SEED certification. Therefore, this paper describes effectiveness of commissioning with comparison of commissioning evaluation criteria of G-SEED with LEED and BREEAM, to propose making commissioning as mandatory process and drive changes in perception among stakeholders for activation of domestic building commissioning.