Furnace Insulation Thickness Calculation

Piping recommended insulation thickness.

Furnace insulation thickness calculation.

The wall of a furnace comprises three layers as shown in the figure. Extra margin must be taken on insulation thickness as sometimes conducting heat transfer through insulation may become higher than convective heat transfer due to air on outside wall of insulation. This calculation determines the ideal thickness of water piping insulation for efficiently and economically preventing a heat transfer from outside to inside and keeping the water transported within cool it does not determine the thickness of insulation designed to keep condensate or other fluids from losing heat. Recommended insulation thickness of heating systems like hot water low medium or high pressure steam systems.

Thermal conductivity of the insulation material for the temperature range of the pipe can be taken as 0 04 w m k. Thermal conductivity of perlite insulation temperature and k values. The pipe size is 8 and the maximum allowable temperature of outer wall of insulation is 50 0 c. Calculate overall heat transfer coefficients for walls or heat exchangers.

I a layer of heat resistant or refractory brick ii a layer of insulating brick and iii a steel plate 0 25 in. A furnace wall consists of three layers. General formula to calculate minimum insulation thickness required to prevent condensation t k r t1 t2 t3 t1 where t insulation thickness in k thermal conductivity r surface temperature resistance t1 dew point temperature. Hence insulation thickness ri rp 0 2302 0 1524 0 0777.

Thick for mechanical protection as shown in fig. Very hot systems like hot water and steam systems should also be insulated to avoid potential personal. Check list information required for the design of cold insulations information to be provided by client or contractor. Recommended insulation thickness of heating systems like hot water low medium or high pressure steam systems.

To avoid heat loss and reduced system efficiency pipe work in heating systems should always be insulated. Calculate the thickness of each layer of brick to give minimum total wall thickness if. The first layer is refractory whose maximum allowable temperature is 1400 o c while the second layer is insulation whose maximum allowable temperature is 1093 o c. Insulation thickness 77 7 mm.

The heat loss from steam per meter of pipe length has to be. Insulation thickness for a furnace wall. 3 2sufficient thermal insulation thickness tm 6 c φ 65 td 22 8 c ta 30 c r flex st kalınlık 9 mm ts 23 6 c td 22 8 c thermal insulation material with a high µ value no condensation. The third layer is a plate of 6 35 mm thickness of steel thermal conductivity 45 w m k.