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L = length of coil D = diameter of coil N = number of turns P = pitch L^2 = (pi*D*N)^2 + (P*N)^2 using AUTOCAD make sure view mode in isometric - type command HELIX - input base diameter - input top diameter - right click mouse, select turn height - input turn height (pitch) - input height of coil you can see length of coil by clicking picture twice to see length in property of helix the different result between formula above and using autocad is 0.23 %
COOLING COIL CONDENSATE CAN BE CALCULATED BY THE FOLLOWING FORMULA" CC CONDENSATE (GPM)=(4.5/500)*CFM*CHANGE IN HUMIDITY RATIO OF THE AIR(LB/MOISTER/LB OF DRY AIR)
RSH=240000 RLH=70000 DB room=76f rh r=50% bf=10% ts coil=? v=?cfm use gaseous cooler
Typically needs "A" coil atop furnace in ductwork, large vapor and small liquid copper lines running between a-coil and external (outside) condensor/compressor unit, 220 V at compressor end, and a professional to silver braze the commpr connections, evacuate the system, and install the refrigerant.The all you need is a thermostat.
It depends on the size of the coil and the burn rate.
you have to measure the diameter of the coil and then multiply the diamter by pi
You're essentially trying to calculate the diameter of a cylinder with a hole in the middle. There are two formulas for volume which you need. Volume= Pi * r2 * h (where Pi=3.142, r = radius of the coil, h = width of the coil) Volume= Weight/Density Since both these formula equal Volume: Weight/Density= Pi * r2 * h Since the weight you have is for a cylinder with a hole in it, you need to calculate the volume of the whole cylinder (without the hole) and subtract the volume of the hole. So for a steel coil Weight/Density = (Pi * rc2 * h)-(Pi * rh2 * h) where rc= the radius of the coil and rh = the radius of the hole (Radius=diameter/2) you're trying to calculate the radius of the coil, so rearrange the formula to get: ((Weight/Density)/Pi*h) + rh2 = rc2 The diameter of the coil = 2 *rc NOTE:- It's important to keep your units of measure consistent throughout the calculation. Density is generally represented by kilograms per cubic metre (kg/m3) - for us metric users ;-) Therefore keep your coil weight in kgs and your radius / width measures in metres.
kg = 6.16546 x width mm x OD2 x bore2 ---- 1000000
It is put there to help prevent wear from vibration.
Weight divided by 3.399, divided by gauge. Divided by width.
You know that each 'wrap' or turn of wire in the coil has to go all the way around the coil-form, and you know how to calculate the distance around a circle. So all you have to do is count the number of times the wire goes around the coil, measure the coil's diameter, calculate its circumference, and multiply that by the number of turns in the coil.
density=mass/volume 7.850=2500kg/(0.47*L*0.914) Ravindra
0.7854*r*r*h where r- radius of coil h is height of coil for 3" coil volume is 0.7854*1.5*1.5*2.54*2.54*1.7/10000=2lts
The diameter of the coil affects the amount of electricity as longer the coil longer the electricity.
Keeping the rest characteristics of a coil the same, increasing coil diameter the spring constant decreases.
Solenoid has a longer length compared to its diameter. The Distance between two loops in a solenoid is longer. while Coil has the bigger diameter. The distance between two loops in a coil is shorter compared to its diameter.
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