Development of an Energy Saving Strategy Model for Retrofitting Existing Buildings: A Korean Case Study
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...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2019-04-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/12/9/1626 |
| _version_ | 1818013802577264640 |
|---|---|
| author | Kwonsik Song Yonghan Ahn Joseph Ahn Nahyun Kwon |
| author_facet | Kwonsik Song Yonghan Ahn Joseph Ahn Nahyun Kwon |
| author_sort | Kwonsik Song |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-14T06:37:43Z |
| format | Article |
| id | doaj.art-c393b0a9e85046a389b73efbb9db1509 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T06:37:43Z |
| publishDate | 2019-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-c393b0a9e85046a389b73efbb9db15092022-12-22T02:07:25ZengMDPI AGEnergies1996-10732019-04-01129162610.3390/en12091626en12091626Development of an Energy Saving Strategy Model for Retrofitting Existing Buildings: A Korean Case StudyKwonsik Song0Yonghan Ahn1Joseph Ahn2Nahyun Kwon3Department of Civil and Environmental Engineering, University of Michigan, Ann Arbor, MI 48109, USADepartment of Architectural Engineering, Hanyang University, Ansan 15588, KoreaDivision of Architecture, Civil and Environmental Engineering, Hoseo University, Asan 31499, KoreaDepartment of Architectural Engineering, Hanyang University, Ansan 15588, KoreaThe 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.https://www.mdpi.com/1996-1073/12/9/1626energy retrofitbuilding energy savinglife cycle costgenetic algorithm |
| spellingShingle | Kwonsik Song Yonghan Ahn Joseph Ahn Nahyun Kwon Development of an Energy Saving Strategy Model for Retrofitting Existing Buildings: A Korean Case Study Energies energy retrofit building energy saving life cycle cost genetic algorithm |
| title | Development of an Energy Saving Strategy Model for Retrofitting Existing Buildings: A Korean Case Study |
| title_full | Development of an Energy Saving Strategy Model for Retrofitting Existing Buildings: A Korean Case Study |
| title_fullStr | Development of an Energy Saving Strategy Model for Retrofitting Existing Buildings: A Korean Case Study |
| title_full_unstemmed | Development of an Energy Saving Strategy Model for Retrofitting Existing Buildings: A Korean Case Study |
| title_short | Development of an Energy Saving Strategy Model for Retrofitting Existing Buildings: A Korean Case Study |
| title_sort | development of an energy saving strategy model for retrofitting existing buildings a korean case study |
| topic | energy retrofit building energy saving life cycle cost genetic algorithm |
| url | https://www.mdpi.com/1996-1073/12/9/1626 |
| work_keys_str_mv | AT kwonsiksong developmentofanenergysavingstrategymodelforretrofittingexistingbuildingsakoreancasestudy AT yonghanahn developmentofanenergysavingstrategymodelforretrofittingexistingbuildingsakoreancasestudy AT josephahn developmentofanenergysavingstrategymodelforretrofittingexistingbuildingsakoreancasestudy AT nahyunkwon developmentofanenergysavingstrategymodelforretrofittingexistingbuildingsakoreancasestudy |