Saturday, April 11, 2009
Recommended :
Tips on Succession in FREE Subscription
Subscribes to FREE Hydrocarbon Processing
Earlier post "Calculate Wetted Surface Area For Horizontal Vessel With Elliptical Head" has presented an accurate equation may be used to calculate wetted surface area for Horizontal Vessel with Elliptical Head. This post will presented a simplified equation to calculate the wetted surface area. Compare to accurate presented earlier, the difference is within 2%.
Let take the same sketch and example used in earlier post... :
A horizontal pressure vessel with radius R and length L (tan-tan) with liquid height of H, the wetted surface area can be the total wetted surface area of cylindrical section and elliptical head (2 heads).
Tips on Succession in FREE Subscription
Subscribes to FREE Hydrocarbon Processing
Earlier post "Calculate Wetted Surface Area For Horizontal Vessel With Elliptical Head" has presented an accurate equation may be used to calculate wetted surface area for Horizontal Vessel with Elliptical Head. This post will presented a simplified equation to calculate the wetted surface area. Compare to accurate presented earlier, the difference is within 2%.
Let take the same sketch and example used in earlier post... :
A horizontal pressure vessel with radius R and length L (tan-tan) with liquid height of H, the wetted surface area can be the total wetted surface area of cylindrical section and elliptical head (2 heads).
Wetted Surface Area (Cylindrical section)
Wetted Surface Area for Cylindrical section can be calculated with following equation :
Wetted Surface Area (Elliptical head)
Wetted Surface Area for Elliptical head (one head) can be calculated with following equation :
Example
L = 6m
R = D / 2 = 1.5m
Awet,Cyl = 2LRxAcos[(R-H)/R]
Awet,Cyl = 2x6x1.5xAcos[(1.5-1)/1.5]= 22.16 m2
Awet,Head = [2.178 / (2 x 3.141592654)]x(2x1.5)^2 x Acos[(1.5-1)/1.5] = 3.84 m2
Total wetted surface area, S = Scyl + 2 x Shd = 29.84 m2
Above equations have been programmed by Ankur & Kenny, share with readers of Chemical and Process Technology. You may download here.
Thanks to Ankur & Kenny
Download
*If you have any useful program and would like to share within our community, please send to me.
Related Post
Wetted Surface Area for Cylindrical section can be calculated with following equation :
Wetted Surface Area (Elliptical head)
Wetted Surface Area for Elliptical head (one head) can be calculated with following equation :
where
R = Vessel inside radius (m)
H = Liquid height from bottom (m)
L = Vessel tangent-to-tangent length (m)
R = Vessel inside radius (m)
H = Liquid height from bottom (m)
L = Vessel tangent-to-tangent length (m)
Example
An ellipsoidal heads horizontal vessel with internal diameter (D) of 3m and tangent-tangent length is 6m. Determine wetted surface area when maximum liquid level is at 1m above vessel bottom.
L = 6m
R = D / 2 = 1.5m
Awet,Cyl = 2LRxAcos[(R-H)/R]
Awet,Cyl = 2x6x1.5xAcos[(1.5-1)/1.5]= 22.16 m2
Awet,Head = [2.178 / (2 x 3.141592654)]x(2x1.5)^2 x Acos[(1.5-1)/1.5] = 3.84 m2
Total wetted surface area, S = Scyl + 2 x Shd = 29.84 m2
**********************************
Above equations have been programmed by Ankur & Kenny, share with readers of Chemical and Process Technology. You may download here.
Thanks to Ankur & Kenny
Download
*If you have any useful program and would like to share within our community, please send to me.
Related Post
- Calculate Wetted Surface Area For VERTICAL Cylindrical vessel with Elliptical Head
- Calculate Wetted Surface Area For Horizontal Vessel With Elliptical Head
- PSV for Shell-and-Tube HEX Tube Side Overpressure Protection against External Fire Attack ?
- Should we consider JET FIRE for Pressure Relief Valve (PSV) load determination ?
- Protective Measures against FIRE other than Pressure Relief Device (PRD)
- Extend of Pool Fire...
- Extra Caution When Eliminating Overpressure by Fire Attacks
0 Comments:
Post a Comment
Let us know your opinion !!! You can use some HTML tags, such as <b>, <i>, <a>
Subscribe to Post Comments [Atom]
Home:
<< Home