Abstract:The wick-concept for thermal insulation of cold piping is based on capillary suction of a fiber fabric to remove excess water from the pipe surface by transporting it to the outer surface of the insulation. From the surface of the insulation jacket, the water will evaporate to the ambient air. This will prevent long-term accumulation of moisture in the insulation material. The wick keeps the hydrophobic insulation dry, allowing it to maintain its thermal performance. The liquid moisture is kept only in the wic… Show more
“…The traditional solution has been to use rather vapour tight, closed foam insulation, but practice shows that it only delays, but do not eliminate the problem. Korsgaard invented the so-called HygroWick system [4] to alleviate such problems. A nonwoven fabric or glass-fibre felt with capabilities to function as a wick is wound around the cold pipe, see Fig.…”
The paper introduces prototypes of a new composite insulation product for interior application. The product consists of a standard mineral fibre insulation batt, which is wrapped in a combination of a thin fabric of moisture absorbing, capillary active material and vapour retarding membranes. The insulation composite has been tested with small samples in a laboratory setup and in an outdoor field test on a full-scale brick wall, and has so far shown promising results in comparison with other products. The paper describes the new insulation composite and the initial moisture tests that have been made with its constituents as well as results from the laboratory and field tests of its ability to prevent moisture accumulation.
“…The traditional solution has been to use rather vapour tight, closed foam insulation, but practice shows that it only delays, but do not eliminate the problem. Korsgaard invented the so-called HygroWick system [4] to alleviate such problems. A nonwoven fabric or glass-fibre felt with capabilities to function as a wick is wound around the cold pipe, see Fig.…”
The paper introduces prototypes of a new composite insulation product for interior application. The product consists of a standard mineral fibre insulation batt, which is wrapped in a combination of a thin fabric of moisture absorbing, capillary active material and vapour retarding membranes. The insulation composite has been tested with small samples in a laboratory setup and in an outdoor field test on a full-scale brick wall, and has so far shown promising results in comparison with other products. The paper describes the new insulation composite and the initial moisture tests that have been made with its constituents as well as results from the laboratory and field tests of its ability to prevent moisture accumulation.
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