hi
as you know the 45 deg. elbow looks like one quarter of a circle and you have two major radii ( Heel & Throat) ; so :
1st two surfaces( top&bottom) are equals to 0.25*(A1 - A2) where:
A1 = pi*Rh^2 ---- Rh : Heel Radius
A2 = pi * Rt^2 ----- Rt: Throat Radius
2nd Areas ( sides) are equals to rectangular areas ; so it's:
A3 = A4 = W*H ,, Now you have 4 surfaces ,,
Good Luck,,
Moath
(Pi*(Center of elbow - od/2)^2-(pi*(Center of elbow+od/2)^2)÷4)÷100000=0.221 Square Meter
9 aboveXP...
Well, calculating the area of a duct elbow is just like painting a happy little cloud. You start by finding the area of the two openings of the elbow, then add the area of the curved surface. Remember, there are no mistakes, just happy little accidents when you're working with numbers and shapes. Just take your time and enjoy the process.
Please provide contact surface area of multimill
Find the area of each face separately and then add them together for the total surface area.
The formula to calculate the surface area of a 90-degree elbow is A = πDL, where A is the surface area, D is the diameter of the elbow, and L is the centerline radius. The surface area of the elbow is essentially the curved surface area of the elbow pipe fitting. This formula is derived from the mathematical principles of geometry and calculus, specifically the surface area of a cylinder.
To calculate the area of a 90-degree elbow, you typically focus on the cross-sectional area of the pipe. The area can be found using the formula for the cross-sectional area of a circle: A = πr², where r is the radius of the pipe. Since the elbow maintains the same diameter, you can use the same radius for calculations. If you need the surface area of the elbow itself, you would need to account for its curvature and length, which can be more complex.
pai/4xdsquare
Lol at your life
To calculate the surface area of a pipe elbow, you can use the formula for the surface area of a curved surface plus the area of the circular ends. For a standard elbow, first, determine the radius (R) and the angle (θ) of the elbow (typically 90° or 45°). The curved surface area can be calculated using the formula: ( A_{curved} = (θ/360) \times 2\pi R \times L ), where ( L ) is the length of the elbow. Add the area of the two circular ends ( ( 2 \times \pi R^2 ) ) to get the total surface area.
(Pi*(Center of elbow - od/2)^2-(pi*(Center of elbow+od/2)^2)÷4)÷100000=0.221 Square Meter
A= 2*(w+h)*(l1+l2) W=width H=Height L1, L2 Length of Elbow
9 aboveXP...
To calculate the square meters of a duct you must add the total length of the straight duct work plus the loss of length from the elbows. A standard elbows measurement is 15 feet for each elbow with a 4 inch diameter or 20 feet for an elbow with a 6 inch diameter.
In order to calculate the area of HVAC duct offset and elbow, one must first measure the distance between the two. Then the elbow must be larger than any cross section to maintain airflow.
You need to:* Calculate the surface area * Calculate the volume * Divide the surface area by the volume
To calculate the pressure exerted on a surface, the force acting on the surface is divided by the surface area. Mathematically, pressure = force / area.