Chilled Water Pipe Insulation Thickness Calculation Formula

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.

Chilled water pipe insulation thickness calculation formula.

Hence insulation thickness ri rp 0 2302 0 1524 0 0777. Cooling and heating load excel sheets free excel sheet for calculating pipe insulation thickness. Industrial insulation phase 2 8 insulation thickness thermal conductivity performance criteria revision 2 0 august 2014 3 0 calculation of material thickness to achieve heat loss values 3 1 heat loss calculations pipe insulation is thermal insulation used to prevent heat loss and gain from. Indoor chilled water cooling and chilled water insulation ducting renovation expansion new construction insulation.

This calculator can be used to calculate the weight of a pipe with or without liquid. The calculator is generic and can be used for both si and imperial units as long as the use of units are consistent. Heating cooling pro standard. D o outside diameter m in d i inside diameter m in ρ m density of piping material kg m 3 lb in 3.

For example 1 in. The pipe size is 8 and the maximum allowable temperature of outer wall of insulation is 50 0 c. For below ambient service by contrast the new pipe insulation thicknesses are not particularly noteworthy. Minumum insulation thickness preventing condensation for pipes parameters ambient temperature ta c 30 medium temperature t m c 6 to prevent condensation tube diameter mm 114 insulation material r flex st relative humidity 70 results thermal conductivity w mk 0 0375 dew point temperature t d c 23 9 minimum insulation.

Is sufficient thickness for all sizes on chilled water lines with an assumed operating temperature in the 40 f to 60 f range. Thermal conductivity of the insulation material for the temperature range of the pipe can be taken as 0 04 w m k. Chilled water pipes emit heat all the time so they must be insulated and this excel sheet calculates heat loss and insulation thickness. Weight of pipe calculator.

When piping and equipment. Calculate insulation thickness minimum value required for a pipe carrying steam at 180 0 c. Insulating chilled water systems requires special attention. The heat loss from steam per meter of pipe length has to be.