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Psychrometri c char t, Er vbbl h a – Bryant ERVBBLHA A07619 User Manual

Page 5

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5

P

SYCHROMETRI

C

CHAR

T

.025

.024

.023

.022

.021

.020

.019

.018

.017

.016

.015

.014

.013

.012

.95

.90

.85

.80

.75

.70

.65

.60

.55

.50

.45

.40

.35

.011

.010

.009

.008

.007

.006

.005

.004

.003

.002

.001

0

Sensible

heat

factor

P

o

unds of moisture

per pound of dry air

7

8

9

10

11

12

32

33

34

35

36

37

38

39

40

41

42

43

44

45

47

48

49

46

27

28

29

30

31

19

20

21

22

23

24

25

26

12

13

14

15

16

17

18

W

e

t Bulb,

Dewpoint or Saturation Te

mperature F

Dry Bulb Te

mperature F

20

Below 32ûF

, properties and enthalpy deviation lines are for ice.

25

25

30

35

40

45

50

55

60

65

70

75

80

30

35

40

85

90

95

100

105

180

170

160

150

140

130

120

110

100

90

80

70

60

50

40

30

20

10

0

45

50

55

60

65

70

75

80

85

90

95

100

105

110

Enthalpy at saturation, Btu per pound of dry air

Grains of moisture

per pound of dry air

14.0 cu ft

14.5 cu ft per pound of dry air

13.5 cu ft

13.0 cu ft

12.5 cu ft

90% Relative Humidity

80%

70%

60%

50%

40%

30%

20%

10%

-.02 BTU

-.01 BTU

-.02 Btu

-.04 Btu

-.06 Btu

-.08 Btu

+0.1 Btu

+0.2 Btu

+0.3 Btu

+0.4 Btu

+0.5 Btu

80%

60%

40%

20%

Btu per pound of

dry air -0.3 Btu

Enthalpy deviation

A

98394

ER

VBBL

H

A