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Full text of "The Flow Of Gases In Furnaces"

332                                   APPENDIX IX

WEIGHT OF WATER AND STEAM AT VARIOUS TEMPERATURES


	Steam Pressure
		Weights of
				


	
	
	
	Water,
	
	
	

Temperature, Degrees C.
	Kilograms per Square Centimeters
	Pounds per Square Inch
	Water Pounds per Cubic Feet.
	Kilograms per Cubic Meter. Ounces per Cubic
	Steam, Kilograms per Cubic Meter
	Steam, Pounds per Cubic Feet
	Ratio
 of Weights, W+S.


	
	
	
	Feet
	
	
	

0
	0.00623
	0.0886
	62.492
	999.87
	0.00485
	0.000303
	206,158

4
	
	....
	62.500
	1000.00
	
	
	

20
	0.0238
	0.338
	62.389
	998.23
	0.0173
	0.00108
	57,701

40
	0.0749
	1.066
	62.016
	992.25
	0.0511
	0.00319
	19,517

60
	0.2028
	2.885
	61.453
	983.24
	0.1305
	0.00815
	7,534

80
	0.4828
	6.867
	60.739
	971.83
	0.2938
	0.0183
	3,307

100
	1.0330
	14.690
	59.899
	958.38
	0.5980
	0.0373
	1,602

120
	2.0240
	28.790
	58.963
	943.40
	1.1220
	0.0700
	841

140
	3.6840
	52.390
	57.900
	926.40
	1.9680
	0.123
	471

160
	6.3000
	89.590
	56.719
	907.50
	3.2650
	0.204
	278

180
	10.2160
	145.30
	55.413
	886.60
	5.1500
	0.322
	173

200
	15.8400
	225.20
	53.925
	862.80
	7.8400
	0.489
	110

coefficient and for the viscosity of the hot water the steam bubble
will rise above any moving stream of water circulating through a
tube before it can be carried any great distance horizontally. A
simple experiment will permit the verification of this. A glass
test-tube is nearly filled with water and a smaller tube is used to
blow air so it will bubble up through the water. A cork with a
vent on one side and a hole for the smaller tube permits the test-
tube to be inclined at various degrees. The ratio between the
weights of equal volumes of air and water is 1 to 774. (When the
tube is inclined the vent should be at the upper side, otherwise
the apparatus will " backfire.73) Upon blowing through the small
tube it will be found that at the vertical position and at slight,
inclinations from the vertical, the air will rise in bubbles. This
action is utilized in the air lift used in raising water from deep
driven wells. When the degree of inclination approaches the
horizontal there will be a tendency for the stream of bubbles to