Modeling and thermal calculation of a pipeline insulation system
The energy efficiency of heating systems depends on the cost of manufacturing insulation materials and components, their installation and operation of the insulation shell. As insulation materials for the insulation of heating networks, products based on stone wool, polyurethane foam, extruded polystyrene foam, foam rubber and polyethylene foam are used. The basic principles of calculating the thickness of the thermal insulation of the pipeline based on the value of the standard heat flow density are given on the example of using products based on polyethylene foam. The calculation of the heat flow from the surface of the thermal insulation structure is carried out at a given thickness of the thermal insulation layer, if it is necessary to determine the heat loss (or cold loss). The basis for the calculation is a mathematical model of heat transfer, a developed calculation algorithm and a computer program. Insulation cylinders or cylinders in combination with thermal insulation coils are used for small diameter pipelines. Rolled materials are used for insulation of large diameters.