【Mechanical Equipment Technology Exchange Edition】Mechanical Equipment 【Daily Question】20190826
Thread Content
Question: What is the physical meaning of the convective heat transfer coefficient α? There are no answers provided for this series of posts; fellow netizens are free to share their own opinions – just reply with what you understand. Replies earn rewards ranging from 5 to 15 points; all forum members are welcome to participate actively and support the development of the forum! ! ! Chemical Equipment and Machinery
In the process of convective heat transfer, the heat flux density q defined by Newton’s law of cooling is proportional to ΔT
In the process of convective heat transfer, the heat flux density q defined by Newton’s law of cooling is proportional to ΔT
The convective heat transfer coefficient reflects the ability of a system to transfer heat by convection; the higher this value, the faster the convective heat transfer rate. Its value equals the convective heat transfer rate per unit area of heat transfer per unit temperature difference.
It represents the amount of heat transferred per unit time by convection, when the temperature difference between the fluid and the wall surface is 1 K per unit area of heat transfer.
It indicates the strength of thermal conductivity, representing the heat flux per unit temperature gradient. The convective heat transfer coefficient reflects the ability of a system to transfer heat by convection; the higher this value, the faster the convective heat transfer rate. Its value equals the convective heat transfer rate per unit area of heat transfer per unit temperature difference.
The thermal conductivity indicates the strength of heat conduction, representing the heat flux per unit temperature gradient. The convective heat transfer coefficient reflects the ability of a system to transfer heat by convection; the higher this value, the faster the convective heat transfer rate. Its value equals the convective heat transfer rate per unit area of heat transfer per unit temperature difference.
The convective heat transfer coefficient reflects the ability of a system to transfer heat by convection; the higher this value, the faster the convective heat transfer rate. Its value equals the convective heat transfer rate per unit area of heat transfer per unit temperature difference.
The thermal conductivity indicates the strength of heat conduction, representing the heat flux per unit temperature gradient. The convective heat transfer coefficient reflects the ability of a system to transfer heat by convection; the higher this value, the faster the convective heat transfer rate. Its value equals the convective heat transfer rate per unit area of heat transfer per unit temperature difference.
In the process of convective heat transfer, the heat flux density q defined by Newton’s law of cooling is proportional to ΔT
The convective heat transfer coefficient reflects the ability of a system to transfer heat by convection; the higher this value, the faster the convective heat transfer rate. Its value equals the convective heat transfer rate per unit area of heat transfer per unit temperature difference.