• Title/Summary/Keyword: Electric Facilities

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Economic Analysis of Heating and Cooling System Corresponding to the Energy Cost of University Building (대학건물에서 에너지비용 변화에 따른 히트펌프 냉난방시스템에 대한 경제성 분석)

  • Kim, Dong-Wan
    • Journal of the Korean Institute of Educational Facilities
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    • v.16 no.1
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    • pp.43-50
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    • 2009

  • This research is to analyze LCC of Heat Pump system in university building by reduction of electric power costs for education and incentive system for gas. Produced details item different expense of EHP and GHP equipment construction step and preservation administration step. Analysis result is as following. 1) Executed LCC analysis for target system after lowering whole curriculum reduction of electric power costs for education. Analysis result, energy cost-cutting effect of EHP appears greatly than GHP unlike existent study finding, EHP decided by economical system. 2) Sensitivity analysis executed by incentive 500,000 won per units and geometrical ration of gas expense by 1%. As a result, because lowering effect of electric charges appears greatly, EHP decided by more economical system than GHP. As research result of front is different from existent study finding, EHP by lowering of electric charges for alteration and education of governmental frequent volunteer system was decided by more economical system than GHP.

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Report on VE & LCC (Value Engineering, Life Cycle Cost) Technics Introduction about the Electric Power Equipment (전력시설물에 대한 VE 와 LCC기법 도입에 관한 연구)

  • 김상직;장우진
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2003.11a
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    • pp.81-86
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    • 2003

  • Recently the introduction of VE & LCC techniques for large size electric power facilities be achieved in various kinds form, of and tends to evaluate to the beginning investment cost when think about cost of electric power facilities usually, but must consider all life cycle cost (maintenance cost, repair cost, improvement cost, operation cost, electric power cost etc.). This treatise applies design techniques that consider copper loss related by voltage drop at power supply of long distance in trunk design and all life cycle cost techniques

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Development of Operation and Control Technology of Energy Storage System for Frequency Regulation and Operation by Grid Connected Automatic Control (주파수조정용 에너지저장장치 운전제어 기술의 개발과 계통연계 자동제어 운전)

  • Lim, Geon-Pyo;Choi, Yo-Han;Im, Ji-Hoon
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.65 no.4
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    • pp.235-241
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    • 2016

  • Grid-connected, large-capacity energy storage systems (ESS) can be used for peak load supply, frequency regulation, and renewable energy output smoothing. In order to confirm the capability of battery ESS to provide such services, 4MW/ 8MWh battery ESS demonstration facility was built in the Jocheon substation on Jeju Island. The frequency regulation technology developed for the Jocheon demonstration facility then became the basis for the 28MW and 24MW frequency regulation ESS facilities installed in 2014 at the Seo-Anseong and Shin-Yongin substations, respectively. The operation control systems at these two facilities were continuously improved, and their successful commercialization led to the construction of additional ESS facilities all over Korea in 2015. In seven (7) locations nationwide (e.g., Shin-Gimje and Shin-Gyeryeong), a total of 184 MW of ESS had been commercialized in 2016. The trial run for the new ESS facilities had been completed between April and May in 2016. In this paper, results of the trial run from each of the ESS facilities are presented. The results obtained from the Seo-Anseong and Shin-Yongin substations during a transient event by a nuclear power plant trip are also presented in this paper. The results show that the frequency regulation battery ESS facilities were able to quickly respond to the transient event and trial run of ESS is necessary before it is commercialized.

  • https://doi.org/10.5370/KIEEP.2016.65.4.235 인용 PDF KSCI

A Study on the Estimation of Electric Equipment Capacity in Office Buildings (사무소건물(事務所建物)의 전기설비용양(電氣設備容量) 산정(算定)에 관한 연구(硏究))

  • Kim, Se-Dong;Choi, Do-Hyuk
    • Proceedings of the KIEE Conference
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    • 1992.07b
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    • pp.666-668
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    • 1992

  • This paper shows a reasonable design standard of electric equipment capacity for office buildings, that was made by the systematic and statistical way considering actual conditions, such as investigated electric equipment capacity, electric power consumption, etc for 121 buildings. The saving of electric equiment investment, the decrease of power loss, the improvement of facilities utilization and the decreasse of electric power rates can be contributed by the application of the design standard.

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