Potential opportunities for energy conservation in existing buildings on university campus: A field survey in Korea

Chung, Min Hee; Rhee, Eon Ku

doi:10.1016/j.enbuild.2014.04.018

Cited by 149 publications

(93 citation statements)

References 23 publications

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“…The capital and replacement cost per kW is $700 each, with an annual operation and management cost of $10. The efficiency ratios of inverter and rectifier inputs are 90% and 85%, respectively [19,21]. The lifetime assumed is 15 years, with 100% capacity relative to inverter.…”

Section: Information On Cost Of Componentsmentioning

confidence: 99%

Economic Feasibility of Renewable Electricity Generation Systems for Local Government Office: Evaluation of the Jeju Special Self-Governing Province in South Korea

et al. 2017

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While environmental and energy concerns have become global issues, the government of South Korea has made notable efforts and formulated plans for the diffusion of renewable energy generation facilities for the nation's public and governmental institutions. Accordingly, Jeju Island has become one of the most promising locations for utilizing renewable energy resources. This study aims to propose potential configurations for renewable energy generation facilities (mainly solar and wind energy facilities) in response to the electricity demand of the main local governmental offices of Jeju Special Self-Governing Province. The study utilizes the hybrid optimization of multiple energy resources software to simulate two optimized configurations for generation at a cost of energy of $0.306 per kWh (independent) and $0.204 per kWh (grid-connected) with 100% renewable fraction for the island. The implications of the simulation results and limitations of the study are discussed.

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Section: Information On Cost Of Componentsmentioning

confidence: 99%

Economic Feasibility of Renewable Electricity Generation Systems for Local Government Office: Evaluation of the Jeju Special Self-Governing Province in South Korea

et al. 2017

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“…Therefore, in order to fulfil the aim of this paper, this information, it assists in finding the lean energy initiatives which are relevant to implement on campus. [7] √ b) University of Malaya [8] √ c) U.S colleges [9] √ √ √ d) College of Desert [10] √ √ e) Boston University [11] √ √ √ f) Rome Italy University Building [12] √ √ √ √ g) UC Berkeley's University [13] √ h) University of Mexico [14] √ √ √ i) Melbourne University [15] √ j) University of Seoul Korea [16] √ √ √ √ √ k) Curtin University Sarawak [17] √ √ l) Guangdong Colleges [18] √ √ √ m) Kingsville Texas University [19] √ √ n) University of Malaya [20] √ …”

Section: Retrofitting In Higher Learning Institutionmentioning

confidence: 99%

Factor Analysis on Criteria Affecting Lean Retrofit for Energy Efficient Initiatives in Higher Learning Institution Buildings

et al. 2017

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Abstract. The expansion of Higher Learning Institution (HLI) is a global concerns on energy demand due to campus act like a small city. Intensive mode of operation of a building is correlated to the energy utilization. Improvement in the current energy efficiency is crucial effort to minimize the environmental effect through minimisation of energy in operation by retrofitting and upgrade the existing building system or components to be more efficient. Basically, there are three recommended steps for the improvement known as lean initiatives, green technology and clean energy in response to becoming zero energy solutions for building. The deliberation of this paper is aimed to highlight the criteria affecting in retrofitting of existing building in HLI with lean initiatives in order to achieve energy efficiency and reduction of energy comsumption. Attention is devoted to reviewing the lean energy retrofitting initiatives criteria for daylighting (side lighting), daylighting (skylight) and glazing. The questionnaire survey was employed and distributed to the architects who has an expertise in green building design. Factor analysis was adopted as a method of analysis by using Principal Component with Varimax Rotation. The result is presented through summarizing the sub-criteria according to its importance with a factor loading 0.50 and above. The result found that majority of the criteria developed achieved the significant factor loading value and in accordance with the protocal of analysis. In conclusion the results from analysis of this paper assists the stakeholders in assessing the significant criteria based on the desired lean energy retrofitting initiatives and also provides a huge contribution for future planning improvement in existing buildings to become an energy efficient building. * Corresponding author: rozana@utm.my

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“…The adopted energy carriers are oil and electricity. EMS for Linyun Iron and Steel Group [20] EMS for fine chemistry industrial park [21] Energy management in Swedish iron and steel industry [22] EMS for electrical energy conservation of complex building in Saubi Arabia [23] EMS integrated design for sustainable buildings [24] Office equipment power management [25] EMS for complex buildings [26] EMS for university campus [27] Intelligent decision support tool for building energy saving [28] Home EMS [29] Home EMS for assessing overall lifecycle [30] Energy-consumption information system for home energy conservation [31] Home EMS based on automatic meter reading [32] Energy saving methodologies 1. Graphic tool; 2.…”

Section: Contents Of Ems Casesmentioning

confidence: 99%

The Development of Cloud Energy Management

et al. 2015

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Abstract:The energy management service (EMS) has been utilized for saving energy since 1982 by managing the energy usage of site or facilities through the microprocessor, computer, Ethernet, internet, and wireless sensor network. The development and represented function groups of EMS are illustrated in the supplementary file of this paper. Along with this tendency, a cloud EMS, named the intelligent energy management network (iEN), was launched by Chunghwa Telecom in 2011 and tested during a pilot run from 2012 to 2013. The cloud EMS integrated three service modes together, including infrastructure as a service (IaaS), platform as a service (PaaS), and software as a service (SaaS). This cloud EMS could reduce the facility cost and enable a continuously improved service for energy conservation. From the literature review, 32 selected EMS cases of whole site and single facility were chosen for calculating the energy savings and payback rate. According to the literature, the average energy savings by applying EMS are 11.6% and 21.4% for the whole site and single facility, respectively. The iEN was applied on 55 demo sites with the similar scale, the same kind of machines and approaching conditions. The testing sites include a factory, a complex building, and a residual building, 12 lighting systems and 8 air conditioning systems. According to the testing results, the average energy savings by applying iEN are 10% and 23.5% for the whole site and single facility, respectively. OPEN ACCESSEnergies 2015, 8 4358Comparing with the reported EMS cases, it was found that the energy savings by adopting the cloud EMS were only 70%-80% compared with those using the traditional EMS. Although the cloud EMS presented less energy savings, it revolutionized the traditional EMS by its innovative business model. Compared with the averaged 1.7 years payback period of the traditional EMS, more than 70% of the cloud EMS cases could pay back immediately for the service fees and without the equipment investment.Keywords: cloud energy management service (cloud EMS); intelligent energy management network (iEN); software as a service (SaaS); immediate payback

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Potential opportunities for energy conservation in existing buildings on university campus: A field survey in Korea

Cited by 149 publications

References 23 publications

Economic Feasibility of Renewable Electricity Generation Systems for Local Government Office: Evaluation of the Jeju Special Self-Governing Province in South Korea

Economic Feasibility of Renewable Electricity Generation Systems for Local Government Office: Evaluation of the Jeju Special Self-Governing Province in South Korea

Factor Analysis on Criteria Affecting Lean Retrofit for Energy Efficient Initiatives in Higher Learning Institution Buildings

The Development of Cloud Energy Management

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