Pipe Thermal Insulation Thickness Calculation

This calculator estimates the thickness of insulation required to avoid condensation on the outer surface of an insulated horizontal steel pipe.

Pipe thermal insulation thickness calculation.

Estimates heat loss from an insulated and bare horizontal steel pipe along with calculation of surface temperature. In many times pipe insulation additionally minimizes the effect of the temperature of the pipe at the instant environment. The pipe size is 8 and the maximum allowable temperature of outer wall of insulation is 50 0 c. It is typically used in process piping and chiller plants and performs best in applications below 50 f.

This very rigid insulation offers the lowest heat flow rate of our pipe insulation and restricts absorption of water air and gas. Data pipe size inch 0 5 0 75 1 1 25 1 5 2 2 5 3 3 5 4 5 6 8 10 12 14 16 18 20 24 26 28 30. Where δ t is the average difference between the internal and external temperatures in kelvin c1 is the thermal resistivity per unit thickness in kelvin meter per watt and t is the insulation thickness in meters. Calculate insulation thickness minimum value required for a pipe carrying steam at 180 0 c.

Hence insulation thickness ri rp 0 2302 0 1524 0 0777 insulation thickness 77 7 mm 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. δ t can be estimated from the historical data for temperatures in the region in which the tank is to be used. Download pipe insulation excel calculator for hvac thermal insulation pipe insulation is designed to assist keeping a suitable temperature for pipes and any fluid flowing via the pipes. To calculate the insulation thickness it is necessary to know or define the line and ambient temperatures and the relative humidity and to determine the thermal conductivity and heat transfer coefficient of both the insulation and the object pipe duct etc to be insulated.