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Installation Design User Answers Industry Standard Technical Topics Calculation of heat dissipation of tank and container electric heating cable

Information source: Anhui Cable Group Views: 10247 Release time: 2014-07-07

When the tank or container is insulated by the electric heating cable, its surface area must be calculated first, and then according to a certain type of insulation material, thickness and the temperature to be maintained by the heat-tracing pipe, see the table below. The heat output of the container. Multiply by the surface area of the tank or container to get the total heat dissipation required for heat tracing. Formula: Q = 1.6 × q × s; 1.6 is the insulation coefficient; q is the unit heat dissipation (W / m²); s The surface area of the tank or container m².
Calculation example: The storage tank is 6 meters high and 5 meters in diameter. The minimum ambient temperature for use is -40 ° C, the maximum wind speed is 15 m / S, and the insulation material is glass fiber cotton with a thickness of 5 cm. The temperature to be maintained is 20 ° C. According to the above parameters, it can be found from the table below that the heat dissipation of the tank or container is q = 38.14w / m²). In the formula: Q = 1.6 × q × s = 1.6 × q × (2Ω R 2 + ΩDh) = 1.6 × 38.14 × (2 × 3.14 × 1.5 2 + 3.14 × 5 × 6) = 6610.73W, the heat dissipation capacity of the oil storage tank is calculated to be 6610.73W, and the total power of the heating cable must be greater than the calculated value Out of heat. Enquiry form for heat dissipation of tank or container during electric heating