Prediction of heat losses from district heating twin pipes

• A method for calculation of long-term heat losses frompolyurethane foam insulated twin pipes is presented,accounting for the spatial dependence and timevariation of the insulating capacity of the foam. With aidof a coordinate transformation the cross-section of thetwin pipe is mapped onto a rectangular geometry, whichfacilitates the modeling. Preliminary results given by thenew model are compared to results given by a previousmodel.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Samhällsbyggnadsteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Civil Engineering (hsv//eng)

TEKNIK OCH TEKNOLOGIER  -- Samhällsbyggnadsteknik -- Husbyggnad (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Civil Engineering -- Building Technologies (hsv//eng)

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