| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Ezekiel, Justin | - |
| dc.contributor.author | Ebigbo, Anozie | - |
| dc.contributor.author | Arifianto, Indra | - |
| dc.contributor.author | Daniilidis, Alexandros | - |
| dc.contributor.author | Finkbeiner, Thomas | - |
| dc.contributor.author | Mai, P. Martin | - |
| dc.date.accessioned | 2022-09-12T07:03:12Z | - |
| dc.date.available | 2022-09-12T07:03:12Z | - |
| dc.date.issued | 2022-11-01 | - |
| dc.identifier.issn | 0375-6505 | - |
| dc.description.abstract | The Kingdom of Saudi Arabia (KSA) has vast geothermal energy resources. When developed, these markedly strengthen the country's goals of achieving a carbon-neutral economy. To demonstrate the feasibility and techno-economic performance of small-scale, hydrothermal well doublet systems for direct use in KSA, we perform reservoir and wellbore flow and heat-transport simulations as well as an economic analysis. The maximum permissible flowrate is constrained to avoid thermoelastic fracturing in the near-wellbore region. Reservoir conditions of a sedimentary basin along the Red Sea coast (near Al Wajh) provide an ideal study case to which we add economic parameters considered representative for KSA. We derive a Levelized Cost of Heat (LCOH) ranging from 49 to 128 $/MWh for 50-mD hydrothermal doublet systems with an optimal well spacing of 600 m and a flowrate ranging from 110 kg/s to 50 kg/s. LCOH is strongly influenced by decreasing reservoir transmissivity. Also, a minimum injection temperature is required to avoid thermoelastic fracturing. Our economic analysis further highlights that capacity factor and well-drilling cost have the greatest impact on LCOH. Thus, this study provides a guide and workflow to conduct techno-economic investigations for decision-making, risk mitigation, optimizing geothermal-energy-extraction and economic-performance conditions of hydrothermal doublet systems. | - |
| dc.description.sponsorship | Hydromechanik | - |
| dc.language.iso | eng | - |
| dc.relation.ispartof | Geothermics | - |
| dc.subject | Hydrothermal systems | - |
| dc.subject | Levelized cost of heating (LCOH) | - |
| dc.subject | Techno-economic optimization | - |
| dc.subject | Thermoelastic fracture | - |
| dc.subject | Transmissivity | - |
| dc.subject | Western Saudi Arabia | - |
| dc.title | Techno-economic performance optimization of hydrothermal doublet systems: Application to the Al Wajh basin, Western Saudi Arabia | - |
| dc.type | Article | - |
| dc.identifier.doi | 10.1016/j.geothermics.2022.102532 | - |
| dc.identifier.scopus | 2-s2.0-85135136494 | - |
| dcterms.bibliographicCitation.volume | 105 | - |
| local.submission.type | only-metadata | - |
| dc.type.article | Scientific Article | - |
| hsu.peerReviewed | ✅ | - |
| item.grantfulltext | none | - |
| item.languageiso639-1 | en | - |
| item.fulltext_s | No Fulltext | - |
| item.openairetype | Article | - |
| item.fulltext | No Fulltext | - |
| crisitem.author.dept | Hydromechanik | - |
| crisitem.author.orcid | 0000-0003-3972-3786 | - |
| crisitem.author.parentorg | Fakultät für Maschinenbau und Bauingenieurwesen | - |
| Appears in Collections: | 3 - Publication references (without fulltext) | |
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