Uncertainty quantification of borehole heat exchanger design length based on a global sensitivity analysis
Ground heat exchangers are essential components of ground-source heat pump systems. One of the most-used ground heat exchanger types is a borehole heat exchanger (BHE). Many parameters, such as the building thermal loads, ground thermal properties, and BHE components, influence the required BHE leng...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2023-01-01
|
| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/33/e3sconf_iaqvec2023_03013.pdf |
| _version_ | 1797799729600397312 |
|---|---|
| author | Shin Euntak Kim Yoonseong Kim Young-sang Choi Wonjun |
| author_facet | Shin Euntak Kim Yoonseong Kim Young-sang Choi Wonjun |
| author_sort | Shin Euntak |
| collection | DOAJ |
| description | Ground heat exchangers are essential components of ground-source heat pump systems. One of the most-used ground heat exchanger types is a borehole heat exchanger (BHE). Many parameters, such as the building thermal loads, ground thermal properties, and BHE components, influence the required BHE length. Therefore, understanding how individual parameter uncertainties are propagated to the output is counterintuitive. In this study, a global sensitivity analysis (GSA) was performed using the framework of the American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE) BHE design method. The GSA was conducted to identify the subparameters behind the input parameters of ASHRAE design method, which indirectly determine the BHE lengths by impacting the direct input parameters in the ASHRAE formula. The results reveal that the zone infiltration, heat pump efficiency, ground temperature, effective borehole thermal resistance, and electric equipment heat gain are the most influential parameters on the BHE design length. |
| first_indexed | 2024-03-13T04:23:20Z |
| format | Article |
| id | doaj.art-ee52661a5a914d5fbc107ea95eecf4db |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-03-13T04:23:20Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-ee52661a5a914d5fbc107ea95eecf4db2023-06-20T09:04:07ZengEDP SciencesE3S Web of Conferences2267-12422023-01-013960301310.1051/e3sconf/202339603013e3sconf_iaqvec2023_03013Uncertainty quantification of borehole heat exchanger design length based on a global sensitivity analysisShin Euntak0Kim Yoonseong1Kim Young-sang2Choi Wonjun3School of Architecture, Chonnam National UniversitySchool of Architecture, Chonnam National UniversityDepartment of Civil Engineering, Chonnam National UniversitySchool of Architecture, Chonnam National UniversityGround heat exchangers are essential components of ground-source heat pump systems. One of the most-used ground heat exchanger types is a borehole heat exchanger (BHE). Many parameters, such as the building thermal loads, ground thermal properties, and BHE components, influence the required BHE length. Therefore, understanding how individual parameter uncertainties are propagated to the output is counterintuitive. In this study, a global sensitivity analysis (GSA) was performed using the framework of the American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE) BHE design method. The GSA was conducted to identify the subparameters behind the input parameters of ASHRAE design method, which indirectly determine the BHE lengths by impacting the direct input parameters in the ASHRAE formula. The results reveal that the zone infiltration, heat pump efficiency, ground temperature, effective borehole thermal resistance, and electric equipment heat gain are the most influential parameters on the BHE design length.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/33/e3sconf_iaqvec2023_03013.pdf |
| spellingShingle | Shin Euntak Kim Yoonseong Kim Young-sang Choi Wonjun Uncertainty quantification of borehole heat exchanger design length based on a global sensitivity analysis E3S Web of Conferences |
| title | Uncertainty quantification of borehole heat exchanger design length based on a global sensitivity analysis |
| title_full | Uncertainty quantification of borehole heat exchanger design length based on a global sensitivity analysis |
| title_fullStr | Uncertainty quantification of borehole heat exchanger design length based on a global sensitivity analysis |
| title_full_unstemmed | Uncertainty quantification of borehole heat exchanger design length based on a global sensitivity analysis |
| title_short | Uncertainty quantification of borehole heat exchanger design length based on a global sensitivity analysis |
| title_sort | uncertainty quantification of borehole heat exchanger design length based on a global sensitivity analysis |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/33/e3sconf_iaqvec2023_03013.pdf |
| work_keys_str_mv | AT shineuntak uncertaintyquantificationofboreholeheatexchangerdesignlengthbasedonaglobalsensitivityanalysis AT kimyoonseong uncertaintyquantificationofboreholeheatexchangerdesignlengthbasedonaglobalsensitivityanalysis AT kimyoungsang uncertaintyquantificationofboreholeheatexchangerdesignlengthbasedonaglobalsensitivityanalysis AT choiwonjun uncertaintyquantificationofboreholeheatexchangerdesignlengthbasedonaglobalsensitivityanalysis |