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Record W2070048151 · doi:10.4043/15297-ms

CNG Transportation Utilizing Composite Pressure Vessels

2003· article· en· W2070048151 on OpenAlexaboutno aff
S. Campbell

Bibliographic record

VenueOffshore Technology Conference · 2003
Typearticle
Languageen
FieldEngineering
TopicSpacecraft and Cryogenic Technologies
Canadian institutionsnot available
Fundersnot available
KeywordsCompressed natural gasContainment (computer programming)Modular designNatural gasMarine engineeringSubmarine pipelinePetroleum engineeringEngineeringEnvironmental scienceWaste managementComputer scienceMechanical engineering

Abstract

fetched live from OpenAlex

Abstract The Trans Ocean Gas CNG transportation method, which utilizes composite pressure vessels and modular cassettes to store natural gas, overcomes the safety, corrosion, excessive weight, and cost deficiencies of all other proposed CNG trans-portation methods. The method also has the ability to extract NGL's while on route, removing the requirement of stripping gas on an offshore structure. Introduction The following paper describes an innovative method of CNG transportation. The method utilizes composite pressure vessels which are derived from the national defense / aero-space, and natural gas vehicle industries. The method over-comes all of the deficiencies anticipated from other proposed methods of CNG transportation that propose to use steel based gas containment systems. Existing container ships may be optimized through the use of the cassette gas containment system. The cassette system also isolates composite gas pressure vessels from ship-induced forces. Being modular, installation and removal of cassettes would be relatively easy. The cassette storage system will provide significant economic advantage over potential com-petitors commencing with a pilot project. This paper will conclude that The Trans Ocean Gas CNG Transportation Method, offers a high level of safety, reliabil-ity, and economic feasibility. Background. The first Compressed Natural Gas (CNG) pilot project using steel pressure vessels mounted on the deck of a ship was conducted off the coast of New Jersey in 1966. It was concluded as not being feasible since the weight of steel pressure vessels required would be too heavy for the host ship to carry. CNG development then stagnated for thirty years. Over the past decade, the increased lucrative potential of CNG has renewed interest and spawned several innovative concepts. All but one proposed method use steel containment systems, which still have issues of safety, corrosion, excessive weight, and cost. All of the proposed methods using steel con-tainment systems are requesting factors of safety less than that of the ASME code. In 1999, author, Mr. Steven Campbell developed a method of CNG transportation that overcomes all of these deficien-cies. This method, licensed exclusively to Trans Ocean Gas Inc. of St. John's Newfoundland, proposes to use composite pressure vessels (CPVs) to safely and cost effectively trans-port up to 1.7 Bcf of natural gas by ship. CPVs have been successfully used in the national defense / aerospace industry since the early 1970's. About 10 years ago, the natural gas vehicle industry started using CPVs for busses, fleet vehicles, and automobiles. CPVs are also used as accumulator bottles for riser tensioning systems on oil and gas TLPs. The CPVs proposed for a ship-based CNG transporta-tion method are similar, but larger than those currently used for natural gas driven buses. Since CPVs have been success-fully used to store natural gas for fuel on public busses, they are well justified for use in a ship-based CNG transportation system.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.511
Threshold uncertainty score0.933

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.014
GPT teacher head0.216
Teacher spread0.202 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations2
Published2003
Admission routes1
Has abstractyes

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