Final equations Flashcards
(14 cards)
1
Q
deltaT for DFMUA
A
Btu divided by CFM X 1.08
2
Q
1 BHP is how many BTU
A
33475
3
Q
Volts equals
A
Amps X Ohms
4
Q
Watts equals
A
Amps X Volts
5
Q
Purge opening
A
SQUARE ROOTED D2/60
6
Q
Purge time (pipe)
A
(length/200)squared X 2
7
Q
DFMUA volume
A
(temp 1 plus 460) X V2 /
Temp 2 plus 460
8
Q
Clocking
A
3600/rotation X test dial X
inlet press plus sea level/ sea level X
stnd temp plus 460 / gas temp plus 460
9
Q
Velocity for DFMUA
A
Volume At low for max (or high for min) /
Area of profile plate
10
Q
How to find area of profile plate
A
L X W of opening minus L X W of burner
11
Q
PPM for DFMUA
A
(Ft co2 (x3 if propane) /
CFM max X 60 min ) X
1,000,000
then / temp change
12
Q
Area
A
D2 x .7854
13
Q
Variable change in orifice flow
A
Q2/Q1 = K2/K1 X A2/A1 X Squared P2/P1 X
Squared SG1/SG2
14
Q
turn down ratio
A
Max delta T / Min delta T
