Metal Heat Transfer Coefficient Table
Calculate conductive heat transfer.
Metal heat transfer coefficient table. Light hydrocarbons viscosity 0 5 cp 100 200. The tables below provide examples of film coefficients values for various applications. The overall heat transfer coefficient for a multi layered wall pipe or heat exchanger with fluid flow on each side of the wall can be calculated as 1 u a 1 hci ai σ sn kn an 1 hco ao 2. 200 700.
Heat transfer coefficient w m 2 k. All values should be regarded as typical since these properties are dependent on the particular type of alloy heat treatment and other factors. Properties of metals thermal conductivity density specific heat. 200 700.
Medium hydrocarbons 0 5 cp viscosity 1 cp 50 100. Q heat transfer w btu h a surface area m 2 ft 2 q a heat transfer per unit area w m 2 btu h ft 2 k thermal conductivity w mk btu hr ft f dt t 1 t 2 temperature difference o c o f s wall thickness m ft conductive heat transfer calculator. 250 750. Overall heat transfer coefficient table chart.
Calculate overall heat transfer coefficient. Cold fluid btu hr ft 2 f steam. Amount of heat required heat flux w m2 i e thermal power per unit area q d dot q da h. K thermal conductivity w mk btu hr ft f s wall thickness m ft a surface area m 2 ft 2.
Heaters no phase change heat transfer coefficients. 10 20. Thermal conductivity k is used in the fourier s equation. Film coefficients just like overall coefficients are influenced by many parameters such as nature of the fluid type of heat exchanger fluid velocity transport properties and temperature.
In order to use the equation above values for the film heat transfer coefficients must be determined. This table gives typical values of thermal several common commercial metals and alloys. Values refer to ambient temperature 0 to 25 c. 100 700.
Heat transfer table of content. Thermal conductivity k is the quantity of heat transmitted due to an unit temperature gradient in unit time under steady conditions in a direction normal to a surface of the unit area. The overall heat transfer rate for combined modes is usually expressed in terms of an overall conductance or heat transfer.