What is the minimum cross sectional area of the flue for a 14 ft tall fireplace with an opening 20 in x 24 in?
To start, we will find the cross sectional area of the pipes. Pipe with radius of 2 inches Cross sectional area = PI x radius2 = 12.56 inches2 Pipe with radius of 3 inches Cross sectional area = PI x radius2 = 28.26 inches2 Pipe with radius of 5 inches Cross sectional area = PI x radius2 = 78.5 inches2 As the cross sectional area of the pipe with a radius of 5 inches (78.5 inches2) is greater than the sum of the cross sectional areas of the pipes with radii of 2 inches and 3 inches (40.82 inches2), it can be concluded that the pipe with a radius of 5 inches will be able to carry the most water. (Assuming that all three pipes are the same length).
It is approx 0.003068 square inches.
It depends on the cross sectional area of the pipe.
An equilateral 1 inch triangle is a plane figure and it does not have a cross-sectional area in any meaningful sense, just an area. Its area is 0.43 = sqrt(3)/4 square inches.
0.03125 = 1/32 inches.
Fireplace screen should be bigger than your hearth opening by 2-3 inches on all the sides
The average size of a fireplace is 54 inches from each side of the mantel piece.
To start, we will find the cross sectional area of the pipes. Pipe with radius of 2 inches Cross sectional area = PI x radius2 = 12.56 inches2 Pipe with radius of 3 inches Cross sectional area = PI x radius2 = 28.26 inches2 Pipe with radius of 5 inches Cross sectional area = PI x radius2 = 78.5 inches2 As the cross sectional area of the pipe with a radius of 5 inches (78.5 inches2) is greater than the sum of the cross sectional areas of the pipes with radii of 2 inches and 3 inches (40.82 inches2), it can be concluded that the pipe with a radius of 5 inches will be able to carry the most water. (Assuming that all three pipes are the same length).
Although there really isn't a standard size for fireplace mantels, anywhere in the 20 inches seems to be about average. They can be anywhere from 15-50 inches and maybe more.
two square inches
If the rain gauge has a 10:1 ratio as described, then the funnel on top has an area that is 10 times the cross-sectional area of the glass tube. Suppose you had a can, that has the same area opening as the funnel, then if it rains 0.5 inch that day, there will be 0.5 inches of water in the can, but if you take the water in that can and pour it into the rain gauge (with cross sectional area 1/10 of the can), that same volume of water will fill up the gauge by 5 inches. They do this so that it is easier to read the amount of rain. If you did not have the funnel on top, it'd be harder to read how much rain there was (was it 0.1 inches or 0.15 inches for example), plus statistically a smaller opening has less of a chance of 'catching' a raindrop than the wider opening.
at least 16 inches
You need the cross sectional area, not simply the width.
3.1416"Answer:3.1416 square inches.
Most building codes require that the firebox be at least 20 inches deep (except for a different style of fireplace, called a Rumsford, which can be 12 inches) Check YOUR local building codes. Also, make sure that the chimney extends the proper height above your roof or the fireplace won't draw.
3600 inches
What capacity would you like? I all depends upon the cross sectional area of the bottle (along with the shape of the bottle).For example, assuming a cylindrical bottle:if the bottle has a cross sectional area of 1 in² then its capacity is 8 cubic inches (about 130 ml);If the bottle has a cross sectional areas of 3 13/16 in² = 3.8125 in² then its capacity is 30.5 cubic inches (about 500 ml or ½ litre);if the bottle has a cross sectional area of 7 5/8 in² = 7.625 in² then its capacity is 61 cubic inches (about 1 litre).