PitotVelocityCalculatorsp23.xlsx

	A	B	C	E	F	G	H	J	K	L
1	Convert Pitot-Static Manometer Reading to Velocity
2	T	70	°F	Color Code				Tool to convert from in Hg to mm Hg and atm
3	hr	39%		Green	Inputs			29.92126	in Hg
4	P	0.95	atm	Blue	Constants			760.000004	mm Hg
5	∆P	4.02	in H2O	Black	Calculated (Don't change.)			1.000000005	atm
6	V	93.96	mph
7				Table of Velocities from Manometer Readings				Definition of inch of H2O
8	Method of Calculation			∆P (in. H2O)	V (mph)	V (ft/min)	V (m/s)	r	4	kg/m3
9	R	8.314462618	J/mol K		93.96			g	9.80665	m/s2
10	MW air	28.96	g/mol	0	0.00	0.0	0.000	h	0.54	m
11	MW H2O	18.0153	g/mol	0.03	8.12	714.3	3.629	P	249.08891	Pa
12	A	8.10765		0.06	11.48	1010.2	5.132
13	B	1750.286		0.07	12.40	1091.1	5.543
14	C	235		0.15	18.15	1597.3	8.114
15	T	21.11	°C	0.23	22.48	1977.8	10.047
16	T	294.26	K	0.34	27.33	2404.7	12.216
17	P	96258.75	Pa	0.49	32.81	2886.9	14.665
18	C	39.34	mol/m3	0.66	38.07	3350.4	17.020
19	p* H20	18.77	mm Hg	0.84	42.95	3779.8	19.201
20	p H20	7.32	mm Hg	1.03	47.56	4185.5	21.262
21		976.2	Pa	1.28	53.02	4665.9	23.703
22	p Air	95283	Pa	1.52	57.78	5084.5	25.829
23	MW mix	28.85	g/mol	1.79	62.70	5517.6	28.030
24	r	1.135	kg/m3	2.11	68.07	5990.6	30.432
25		0.07085707041	lb/ft3	2.43	73.05	6428.8	32.658
26	∆P	1001.3	Pa	2.8	78.42	6900.9	35.057
27	V	42.01	m/s	3.19	83.70	7365.8	37.419
28		137.81	ft/s	3.6	88.92	7824.9	39.750
29				4.02	93.96	8268.8	42.005
30				4.54	99.86	8787.3	44.639
31	Instructions: If available, enter the room
32	temperature, relative humidity, and
33	absolute pressure. Then enter the
34	manometer reading in inches of H2O.
35	The calculated velocity will be displayed.
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