ow a uniformity of
results by hours. A summary of the results secured is given in Table 26,
which shows the water rate per indicated horse power and the heat
consumption. The latter figures are computed on the basis of the heat
imparted to the steam above the actual temperature of the feed water
and, as stated, these are the results that are directly comparable.
TABLE 26
RESULTS OF "IDALIA" TESTS
_______________________________________________________________________
| | | | | | |
|Date 1909 |Oct. 11|Oct. 14|Oct. 14|Oct. 12|Oct. 13|
|_______________________________|_______|_______|_______|_______|_______|
|Degrees of superheat Fahrenheit| 0 | 57 | 88 | 96 | 105 |
|Pressures, pounds per} Throttle| 190 | 196 | 201 | 198 | 203 |
|square inch above } First | | | | | |
|Atmospheric Pressure } Receiver| 68.4 | 66.0 | 64.3 | 61.9 | 63.0 |
| } Second | | | | | |
| } Receiver| 9.7 | 9.2 | 8.7 | 7.8 | 8.4 |
|Vacuum, inches | 25.5 | 25.9 | 25.9 | 25.4 | 25.2 |
|Temperature, Degrees Fahrenheit| | | | | |
| } Feed | 201 | 206 | 205 | 202 | 200 |
| } Hot Well | 116 | 109.5 | 115 | 111.5 | 111 |
| | | | | | |
|Revolutions per minute | | | | | |
| {Air Pump | 57 | 56 | 53 | 54 | 45 |
| {Circulating Pump| 196 | 198 | 196 | 198 | 197 |
| {Main Engine | 194.3 | 191.5 | 195.1 | 191.5 | 193.1 |
|Indicated Horse Power, | | | | | |
| Main Engine | 512.3 | 495.2 | 521.1 | 498.3 | 502.2 |
|Water per hour, total pounds |9397 |8430 |8234 |7902 |7790 |
|Water per indicated | | | | | |
| Horse Power, pounds | 18.3 | 17.0 | 15.8 | 15.8 | 15.5 |
|B. t. u. per minute per | | | | | |
| indicated Horse Power | 314 | 300 | 284 | 286 | 283 |
|Per cent Saving of Steam | ... | 7.1 | 13.7 | 13.7 | 15.3 |
|Percent
|