Method, system and equipment for determining heating power of heater for heat absorption structure and medium

Abstract

The invention belongs to the technical field of heater heating, and particularly relates to a method for determining the heating power of a heater for a heat absorption structure. Calculating the surface convective heat loss rate of the heat absorption structure; calculating the surface radiation heat loss rate of the heat absorption structure; integrating the surface temperature rise heat absorption rate, the surface convection heat loss rate and the surface radiation heat loss rate of the heat absorption structure to obtain the surface heat flux density of the heat absorption structure; and calculating the heating power of the heater based on the surface heat flux density of the heat absorption structure. In addition, the invention relates to a heater heating power determining system for a heat absorption structure, equipment and a medium thereof.

Description

technical field [0001] The present application belongs to the technical field of heater heating, and in particular relates to a method, system, equipment, and medium for determining the heating power of a heater used in an endothermic structure. Background technique [0002] Quartz lamps have small thermal inertia, are easy to control, and are very suitable for the transient characteristics of pneumatic heating. They are small in size and high in power. They can be assembled into heaters of different sizes and shapes. In a large area, 1.2MW / m2 can be obtained. The heat flux density is widely used in the thermal strength test of large full-scale structures and small structures, and it also has good adaptability to the thermal strength test of small plate structures with complex shapes and structures. [0003] In the structural heat strength test, the heating power of the heater is mostly determined according to the surface temperature rise and heat absorption rate of the heat...

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Problems solved by technology

[0003] In the structural thermal strength test, the heating power of the heater is mostly determined according to the heat absorption rate of the surface temperature rise of the heat-absorbing structure. However, in practice, the surface of the heat-absorbing structure will conduct convective heat exchange with the surrounding air and radiate heat to the surrounding space. , so that there are convective heat loss and radiation heat loss, the convective heat loss and radiation heat loss on the surface of the endothermic structure will be ignored, and the heating power of the heater will be determined only according to the surface temperature rise and heat absorption rate of the endothermic structure. There is a heater The heating power cannot meet the demand of the surface temperature rise of the heat-absorbing structure, resulting in the failure of the test

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