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Physical property measurement and computer simulated performance prediction of rigid polyisocyanurate foam at cryogenic temperatures

Physical property measurement and computer simulated performance prediction of rigid polyisocyanurate foam at cryogenic temperatures
Physical property measurement and computer simulated performance prediction of rigid polyisocyanurate foam at cryogenic temperatures
The use of rigid polyisocyanurate (PIR) foam for the insulation of pipework, vessels, equipment, etc., running at cryogenic temperatures has increased slowly over recent years as the advantages of polyisocyanurate (e.g., ease of installation, low thermal conductivity, light weight, etc.) over traditional methods such as cellular glass have become apparent. A major drawback preventing a more rapid acceptance of PIR is that it has not been possible to accurately test key cryogenic properties such as Poisson's ratio and tensile modulus. As a result, accurate modeling of stresses at cryogenic temperatures has not been possible, and some inservice failures have taken place.
This paper presents cryogenic test data on PIR foam, including tensile modulus and Poisson's ratio data which has been measured using a novel technique that allows the precise measurement of these key physical properties. The stresses expected in operation at cryogenic temperatures have been modeled with a view to confirming the technical performance of the PIR foam. The paper focuses on the use of PIR for LNG (liquified natural gas) projects operating at -160°C.
It is believed that this work will give users/specifiers the confidence in the suitability of PIR foams to withstand stresses at cryogenic temperatures. It also gives the foam manufacturer a method of evaluating and optimizing different foam formulations.
1530-7999
412-429
Harris, M.S.
8126f354-0313-4807-abc2-e4504362867c
Nightingale, C.
7d9a64c4-f481-4d9b-9591-a938c10e323b
McDonald, P.C.
0e6a4b1d-2a8d-4c9e-9254-48a6f1a7eb37
Keary, A.
fc180476-695b-47ed-b5e4-279df1c73b3d
Harris, M.S.
8126f354-0313-4807-abc2-e4504362867c
Nightingale, C.
7d9a64c4-f481-4d9b-9591-a938c10e323b
McDonald, P.C.
0e6a4b1d-2a8d-4c9e-9254-48a6f1a7eb37
Keary, A.
fc180476-695b-47ed-b5e4-279df1c73b3d

Harris, M.S., Nightingale, C., McDonald, P.C. and Keary, A. (1998) Physical property measurement and computer simulated performance prediction of rigid polyisocyanurate foam at cryogenic temperatures. Journal of Cellular Plastics, 34 (5), 412-429. (doi:10.1177/0021955X9803400503).

Record type: Article

Abstract

The use of rigid polyisocyanurate (PIR) foam for the insulation of pipework, vessels, equipment, etc., running at cryogenic temperatures has increased slowly over recent years as the advantages of polyisocyanurate (e.g., ease of installation, low thermal conductivity, light weight, etc.) over traditional methods such as cellular glass have become apparent. A major drawback preventing a more rapid acceptance of PIR is that it has not been possible to accurately test key cryogenic properties such as Poisson's ratio and tensile modulus. As a result, accurate modeling of stresses at cryogenic temperatures has not been possible, and some inservice failures have taken place.
This paper presents cryogenic test data on PIR foam, including tensile modulus and Poisson's ratio data which has been measured using a novel technique that allows the precise measurement of these key physical properties. The stresses expected in operation at cryogenic temperatures have been modeled with a view to confirming the technical performance of the PIR foam. The paper focuses on the use of PIR for LNG (liquified natural gas) projects operating at -160°C.
It is believed that this work will give users/specifiers the confidence in the suitability of PIR foams to withstand stresses at cryogenic temperatures. It also gives the foam manufacturer a method of evaluating and optimizing different foam formulations.

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Published date: 1998

Identifiers

Local EPrints ID: 21210
URI: http://eprints.soton.ac.uk/id/eprint/21210
ISSN: 1530-7999
PURE UUID: 7442e9e0-02f8-4c27-ba1b-a5e803004c83

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Date deposited: 10 Nov 2006
Last modified: 15 Jul 2019 19:24

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Contributors

Author: M.S. Harris
Author: C. Nightingale
Author: P.C. McDonald
Author: A. Keary

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