New method of reducing contact heat transfer in vacuum-screen insulation

Journal Article · Thu Sep 01 00:00:00 EDT 1988 · J. Eng. Phys. (Engl. Transl.); (United States)

OSTI ID:5947334

Kurshaya, T A; Getmanets, V F; Grigorenko, B V

A new method of heat treatment is proposed for vacuum-screen insulation (VSI) for cryogenic pipelines that substantially reduces the contact heat transfer and halves the heat flux. The method consists of brief heating (0.5-1 h) in air for the VSI packet mounted on the item at the plasticity temperature (130-140/degree/C for polyethylene terephthalate PET film) of the VSI. The method was tested on one-component VSI consisting of corrugated one-sided aluminized PET films as well as VSI with inserts of SBSh-T glass cloth, NT-8 basalt cloth, and cloth composed of SNT-10 synthetic fiber. The method worked best for PET film inserts. The optimum temperature, time, and packing density were established based on the VSI thermal conductivity and thickness.

• Research Organization: Low Temperature Technical Physics Institute, Kharkov (USSR)
• OSTI ID: 5947334
• Journal Information: J. Eng. Phys. (Engl. Transl.); (United States), Vol. 54:3; Other Information: Translated from Inzh. Fiz. Zh.; 54: No. 3, 446-450 (Mar 1988)
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
COMPOSITE MATERIALS
HEAT TREATMENTS
PIPELINES
THERMAL EFFICIENCY
POLYESTERS
THERMAL INSULATION
THERMAL CONDUCTIVITY
ALUMINIUM
BASALT
CRYOGENICS
FIBERS
FILMS
GLASS
HEAT FLUX
HEAT TRANSFER
OPTIMIZATION
THICKNESS
TRANSITION TEMPERATURE
DIMENSIONS
EFFICIENCY
ELEMENTS
ENERGY TRANSFER
ESTERS
IGNEOUS ROCKS
MATERIALS
METALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PHYSICAL PROPERTIES
POLYMERS
ROCKS
THERMODYNAMIC PROPERTIES
VOLCANIC ROCKS
420201* - Engineering- Cryogenic Equipment & Devices
320302 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Materials