Vert, EllipticalSubject :Wetted Surface Area For Partially Filled VERTICAL Elliptical Head VesselSubscribe FREE MagazineRev.0.1Author :KennySubscribe FREE News LetterChecked :JoeWongwebwormcpt.wwcpt@gmail.comReference :"Accurate Wetted Areas for Partially Filled Vessels", by Richard C. Doane"Chemical Engineering, December 2007WebBlog :Chemical & Process TechnologyDisclaimer: The information and methods included within this spreadsheet are presented for common sharing and intended to be used by technically skilled persons at their own discretion. I do not warrant the suitability or accuracy of these methods.Equation for the wetted surface area of a VERTICAL vessel with 2:1 Ellipsoidal headsThe Wetted surface area of a partially filled VERTICAL vessel is the sum of two components: a) partial wetted surface area of the cylinder and b) partial wetted surface area of the heads.A. Equation for wetted surface area cylindrical part of the vessel:InputsVessel Inside Diameter, d1mLiquid depth, l1mB. Equation for the wetted surface area of an elliptical headCalculationsWetted Surface Area of Cylinder, AWet, Cyl3.14m2Wetted Surface Area of One Head, AWet,Head1.08m2where:Total Wetted Surface Area of Vessel4.23m2AWet,Cyl. = wetted surface area of the cylindrical portion of vessel, m2AWet,Head = wetted surface area of elliptical head, m2l = height of the cylindrical section of the vessel, md = vessel diameter, m

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Horiz, EllipticalSubject :Wetted Surface Area For Partially Filled Horizontal Elliptical Head VesselSubscribe FREE MagazineRev.0.1Author :Ankur Srivastava (Chemical Engineer)ankur_2061@hotmail.comSubscribe FREE News LetterChecked :JoeWongwebwormcpt.wwcpt@gmail.comReference :"Accurate Wetted Areas for Partially Filled Vessels", by Richard C. Doane"Chemical Engineering, December 2007WebBlog :Chemical & Process TechnologyDisclaimer: The information and methods included within this spreadsheet are presented for common sharing and intended to be used by technically skilled persons at their own discretion. I do not warrant the suitability or accuracy of these methods.Equation for the wetted surface area of a HORIZONTAL vessel with 2:1 Ellipsoidal headsThe Wetted surface area of a partially filled horizontal vessel is the sum of two components: a) The partial wetted surface area of the cylinder and b) Twice the partial wetted surface area of the heads.

In the oil and gas industry, horizontal vessels with 2:1 ellipsoidal heads are very common and the calculation specifically addresses a horizontal vessel with 2:1 ellipsoidal headA. Equation for wetted surface area cylindrical part of the vessel:where:3.1415926536AWet,CYL = wetted surface area of the cylindrical portion of vessel, m2L = tangent-to-tangent length of the cylindrical section of the vessel, mR = vessel inside radius, m (also equal to D/2 where D is the vessel inside diameter)H = maximum liquid depth, mNote: Angles are measured in radiansB. Equation for the wetted surface area of an elliptical headwhere:AWet,Head = wetted surface area of one elliptical head, m2F = Fractional liquid level = H / 2Re = eccentricity of the elliptical vessel head = 0.866 for the common 2:1 ellipsoidal headWe will simplify the equation by substituting A and B for the factors "F-0.5" and "Sqrt (1+(12*(F-0.5)^2)"InputsVessel Inside Diameter, D3mVessel Length, L6mMaximum liquid depth, H1mEccentricity (Elliptical head),e0.866CalculationsVessel Inside Radius, R1.5mFractional liquid level, F0.333Factor A-0.167Factor B1.1547Wetted Surface Area of Cylinder, AWet, Cyl22.16m2Wetted Surface Area of One Head, AWet,Head3.64m2Wetted Surface Area of two heads7.27m2Total Wetted Surface Area of Vessel29.43m2

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Horiz, Elliptical-SimplifiedSubject :Wetted Surface Area For Partially Filled Horizontal Elliptical Head Vessel (Simplified)Subscribe FREE MagazineRev.0.1Author :KennySubscribe FREE News LetterChecked :JoeWongwebwormcpt.wwcpt@gmail.comReference :"Fire, Vessel and The Pressure Relief Valve", WY, Wong"Chemical Engineering, May 2000WebBlog :Chemical & Process TechnologyDisclaimer: The information and methods included within this spreadsheet are presented for common sharing and intended to be used by technically skilled persons at their own discretion. I do not warrant the suitability or accuracy of these methods.Equation for the wetted surface area of a HORIZONTAL vessel with 2:1 Ellipsoidal headsThe Wetted surface area of a partially filled horizontal vessel is the sum of two components: a) The partial wetted surface area of the cylinder and b) Twice the partial wetted surface area of the heads.

In the oil and gas industry, horizontal vessels with 2:1 ellipsoidal heads are very common and the calculation specifically addresses a horizontal vessel with 2:1 ellipsoidal headA. Equation for wetted surface area cylindrical part of the vessel:where:AWet,CYL = wetted surface area of the cylindrical portion of vessel, m2L = tangent-to-tangent length of the cylindrical section of the vessel, mR = vessel inside radius, m (also equal to D/2 where D is the vessel inside diameter)H = maximum liquid depth, mNote: Angles are measured in radiansB. Equation for the wetted surface area of an elliptical headwhere:AWet,Head = wetted surface area of one elliptical head, m2F = Fractional liquid level = H / 2Re = eccentricity of the elliptical vessel head = 0.866 for the common 2:1 ellipsoidal headInputsVessel Inside Diameter, D3mVessel Length, L6mMaximum liquid depth, H1mEccentricity (Elliptical head),e0.866CalculationsVessel Inside Radius, R1.5mFractional liquid level, F0.333Factor A-0.167Factor B1.1547Wetted Surface Area of Cylinder, AWet, Cyl22.16m2Wetted Surface Area of One Head, AWet,Head3.84m2Wetted Surface Area of two heads7.68m2Total Wetted Surface Area of Vessel29.84m2

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