Energy Return on Energy Invested (EROI) for the Electrical Heating of Methane Hydrate Reservoirs
We model the low frequency electrical heating of submarine methane hydrate deposits located at depths between 1000 and 1500 m, and determine the energy return on energy invested (EROI) for this process. By means of the enthalpy method, we calculate the time-dependent heating of these deposits under...
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2011
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Online Access: | https://doi.org/10.3390/su3112105 https://doaj.org/article/6df4b53f010d4695827c6c4ab486ba86 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:6df4b53f010d4695827c6c4ab486ba86 2023-05-15T17:11:42+02:00 Energy Return on Energy Invested (EROI) for the Electrical Heating of Methane Hydrate Reservoirs Roberto Cesare Callarotti 2011-11-01 https://doi.org/10.3390/su3112105 https://doaj.org/article/6df4b53f010d4695827c6c4ab486ba86 en eng MDPI AG doi:10.3390/su3112105 2071-1050 https://doaj.org/article/6df4b53f010d4695827c6c4ab486ba86 undefined Sustainability, Vol 3, Iss 11, Pp 2105-2114 (2011) EROI methane hydrates electrical heating electromagnetic heating moving boundary problems enthalpy method envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2011 fttriple https://doi.org/10.3390/su3112105 2023-01-22T17:50:08Z We model the low frequency electrical heating of submarine methane hydrate deposits located at depths between 1000 and 1500 m, and determine the energy return on energy invested (EROI) for this process. By means of the enthalpy method, we calculate the time-dependent heating of these deposits under applied electrical power supplied to a cylindrical heater located at the center of the reservoir and at variable depths. The conversion of the produced water to steam is avoided by limiting the heater temperature. We calculate the volume of methane hydrate that will melt and the energy equivalent of the gas thus generated. The partial energy efficiency of this heating process is obtained as the ratio of the gas equivalent energy to the applied electrical energy. We obtain EROI values in the range of 4 to 5, depending on the location of the heater. If the methane gas is used to generate the electrical energy required in the heating (in processes with a 33% efficiency), the effective EROI of the process falls in the range of 4/3 to 5/3. Article in Journal/Newspaper Methane hydrate Unknown Sustainability 3 11 2105 2114 |
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Open Polar |
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language |
English |
topic |
EROI methane hydrates electrical heating electromagnetic heating moving boundary problems enthalpy method envir geo |
spellingShingle |
EROI methane hydrates electrical heating electromagnetic heating moving boundary problems enthalpy method envir geo Roberto Cesare Callarotti Energy Return on Energy Invested (EROI) for the Electrical Heating of Methane Hydrate Reservoirs |
topic_facet |
EROI methane hydrates electrical heating electromagnetic heating moving boundary problems enthalpy method envir geo |
description |
We model the low frequency electrical heating of submarine methane hydrate deposits located at depths between 1000 and 1500 m, and determine the energy return on energy invested (EROI) for this process. By means of the enthalpy method, we calculate the time-dependent heating of these deposits under applied electrical power supplied to a cylindrical heater located at the center of the reservoir and at variable depths. The conversion of the produced water to steam is avoided by limiting the heater temperature. We calculate the volume of methane hydrate that will melt and the energy equivalent of the gas thus generated. The partial energy efficiency of this heating process is obtained as the ratio of the gas equivalent energy to the applied electrical energy. We obtain EROI values in the range of 4 to 5, depending on the location of the heater. If the methane gas is used to generate the electrical energy required in the heating (in processes with a 33% efficiency), the effective EROI of the process falls in the range of 4/3 to 5/3. |
format |
Article in Journal/Newspaper |
author |
Roberto Cesare Callarotti |
author_facet |
Roberto Cesare Callarotti |
author_sort |
Roberto Cesare Callarotti |
title |
Energy Return on Energy Invested (EROI) for the Electrical Heating of Methane Hydrate Reservoirs |
title_short |
Energy Return on Energy Invested (EROI) for the Electrical Heating of Methane Hydrate Reservoirs |
title_full |
Energy Return on Energy Invested (EROI) for the Electrical Heating of Methane Hydrate Reservoirs |
title_fullStr |
Energy Return on Energy Invested (EROI) for the Electrical Heating of Methane Hydrate Reservoirs |
title_full_unstemmed |
Energy Return on Energy Invested (EROI) for the Electrical Heating of Methane Hydrate Reservoirs |
title_sort |
energy return on energy invested (eroi) for the electrical heating of methane hydrate reservoirs |
publisher |
MDPI AG |
publishDate |
2011 |
url |
https://doi.org/10.3390/su3112105 https://doaj.org/article/6df4b53f010d4695827c6c4ab486ba86 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_source |
Sustainability, Vol 3, Iss 11, Pp 2105-2114 (2011) |
op_relation |
doi:10.3390/su3112105 2071-1050 https://doaj.org/article/6df4b53f010d4695827c6c4ab486ba86 |
op_rights |
undefined |
op_doi |
https://doi.org/10.3390/su3112105 |
container_title |
Sustainability |
container_volume |
3 |
container_issue |
11 |
container_start_page |
2105 |
op_container_end_page |
2114 |
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1766068478451646464 |