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Development of an Energy Saving Strategy Model for Retrofitting Existing Buildings: A Korean Case Study

Title
Development of an Energy Saving Strategy Model for Retrofitting Existing Buildings: A Korean Case Study
Author
안용한
Keywords
energy retrofit; building energy saving; life cycle cost; genetic algorithm
Issue Date
2019-04
Publisher
MDPI
Citation
ENERGIES, v. 12, No. 9, Article no. 1626
Abstract
The building sector accounts for approximately 40% of national energy consumption, contributing to the environmental crisis of global warming. Using energy saving measures (e.g., improved thermal insulation, highly energy-efficient electrical and mechanical systems) provides opportunities to reduce energy consumption in existing buildings. Furthermore, if the life cycle cost (i.e., installation, operation and maintenance cost) of the measures is considered with their energy saving potential, it is possible to establish a cost-effective energy retrofit plan. Therefore, this research develops an energy saving strategy model considering its saving potential and life cycle cost of the measures for reducing energy consumption in existing buildings. To test the validity of the proposed model, a case study is carried out on an educational facility in South Korea, in response to its overconsumption of energy. The results demonstrate that in terms of energy saving and life cycle cost, the optimal energy retrofit plan is more cost-effective than the existing plan. Also, the break-even point for the optimal energy retrofit plan is within five years, and then revenue from energy saving continually occurs until 2052. For energy retrofit of existing buildings, using the proposed model would enable building owners to maximize energy savings while minimizing the life cycle cost.
URI
https://www.mdpi.com/1996-1073/12/9/1626http://repository.hanyang.ac.kr/handle/20.500.11754/113076
ISSN
1996-1073
DOI
10.3390/en12091626
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ARCHITECTURE(건축학부) > Articles
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