Formula for the total driving force of natural circulation in the waste heat boiler and drum room
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This post was last edited by yunzhongzi112 on 2011-8-16 at 11:26. The driving force for natural circulation between the waste heat boiler and the steam drum is the density difference of the fluid between the downcomer and the upcomer; this can be expressed by the formula: P=H*g*（ρL-ρGL）*φ. Could anyone help me find out where this formula comes from, or indicate which literature it can be found in? Thank you!
What does φ represent in the formula? . . . . . . . . . . . . . . . . . . . . . .
The pressure P can be calculated using the formula P=ρgH; thus, △P=(ρ1-ρ2)*g*△H, and φ represents the drag coefficient.