ASME Standard Carbon Steel Boiler Fin Tube Heat Exchanger Using​

Fin Tube Description

Finned tubes are used in applications involving the transfer of heat from a hot fluid to a colder fluid through a tube wall.

The rate at which such heat transfer can occur depends on three factors:

• the temperature difference between the two fluids;
• the heat transfer coefficient between each of the fluids and the tube wall;
• the surface area to which each fluid is exposed.

In the case of a bare (un-finned) tubes, where the outside surface area is not significantly greater than the inside surface area, the fluid with the lowest heat transfer coefficient will dictate the overall heat transfer rate. When the heat transfer coefficient of the fluid inside the tube is several times larger than that of fluid outside the tube (for example steam inside and oil outside), the overall heat transfer rate can be greatly improved by increasing the outside surface of the tube. In mathematical terms, the product of heat transfer coefficient for the outside fluid multiplied by the outside surface area is made to more closely match the product of the inside fluid heat transfer coefficient multiplied by the inside surface area.

“The whole concept of finned tubes is to increase the outside surface area of the tube.”

Advantages

1.Anti-corrosion

2.Anti-wear

3.Lower contact resistance

4.Higher Stability

5.Anti - ash ability

Company Information

HD Boiler established in 1985, Zhangjiagang Hua Dong Boiler Co., Ltd. (trading as HD Boiler), is a professional industrial manufacturer, producing utility boiler,industrial boiler,HRSG boiler and all kinds of boiler parts, such as waterwall panels, economizers, air preheaters, superheaters, headers, spiral fin tubes, H-fin tubes, heat pipes etc. HD Boiler is located in Dong Lai Industrial Park, east suburb of Zhang Jia Gang City. The plant’s location is around 150km Expressway to Shanghai Port or 60km State Road to Suzhou or Wuxi, with transportation extending in all directions conveniently and quickly.