Best Answer

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

Q: How do you calculate surface area of a duct elbow 45 degree?

Write your answer...

Submit

Still have questions?

Continue Learning about Geometry

(Pi*(Center of elbow - od/2)^2-(pi*(Center of elbow+od/2)^2)÷4)÷100000=0.221 Square Meter

9 aboveXP...

Please provide contact surface area of multimill

Area of Duct = (Weidth+Height) X 2 X (Length1+Length2)

To calculate the surface area of a sphere use the formula - 4pr2 r being the radius of the sphere. and 'p' being pi 3.14...

Related questions

The formula used to calculate the surface of a 90 degree elbow is pi^2 *. This formula is taught in geometry class.

pai/4xdsquare

Lol at your life

(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.

You need to:* Calculate the surface area * Calculate the volume * Divide the surface area by the volume

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.

surface area divided by volume

To calculate the surface area of a shape find the area of each side, and then, add all of the areas together. The sum of the areas is the surface area.

You measure or calculate the surface area; you measure or calculate the volume and then you divide the first by the second. The surface areas and volumes will, obviously, depend on the shape.