Measurement of polyethylene pipe parameters during an ocean deployment. Final report

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Description

Data were acquired on the behavior of the polyethylene upwelling pipe for the GRI/DOE Marine Biomass Biological Test Farm during several phases of pipe assembly and ocean towing and deployment. The pipe is nominally 28 in O.D., 1400 feet long with wall thicknesses of 0.9 and 1.75 inches. The entire effort was conducted over a period of six weeks and was implemented on a strictly non-interference basis with the main Biomass Program. Three types of data were acquired during shore and ocean based operations conducted in the southern California area during the period from 15 September-27 September 1978. Axial strain ... continued below

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Pages: 71

Creation Information

Hoppmann, R. F. & Ritchie, P. L. November 15, 1978.

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Description

Data were acquired on the behavior of the polyethylene upwelling pipe for the GRI/DOE Marine Biomass Biological Test Farm during several phases of pipe assembly and ocean towing and deployment. The pipe is nominally 28 in O.D., 1400 feet long with wall thicknesses of 0.9 and 1.75 inches. The entire effort was conducted over a period of six weeks and was implemented on a strictly non-interference basis with the main Biomass Program. Three types of data were acquired during shore and ocean based operations conducted in the southern California area during the period from 15 September-27 September 1978. Axial strain data were obtained from two rows of 15 transducers each, separated circumferentially by 90/sup 0/ and distributed along the entire length of the pipe. Photographic data were also acquired from helicopter, boat and shore stationed cameras. The third type of data acquired were lowering line tension measurements made during the second successful deployment operation.

Physical Description

Pages: 71

Notes

NTIS, PC A04/MF A01.

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  • Report No.: DOE/NOAA/OTEC-20
  • Grant Number: EG-77-A-29-1078
  • DOI: 10.2172/5415640 | External Link
  • Office of Scientific & Technical Information Report Number: 5415640
  • Archival Resource Key: ark:/67531/metadc1072422

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • November 15, 1978

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

Description Last Updated

  • March 20, 2018, 5:45 p.m.

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Hoppmann, R. F. & Ritchie, P. L. Measurement of polyethylene pipe parameters during an ocean deployment. Final report, report, November 15, 1978; United States. (digital.library.unt.edu/ark:/67531/metadc1072422/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.