Table of coal evaporation statistics




68

TABLE III.

Showing the QUANTITY of WATER evaporated by an equal Quantity of different kinds of COAL, calculated from Tables I. and II., on the following basis, viz.—A given quantity (represented by 100) of Average North of England Coal will evaporate 4700 cubic feet of Water in an hour, and its value for steam-producing is represented by 100 per cent.

EXAMPLE OF CALCULATION—BULLER.

Coal lbs. Water Cub. ft. Coal lbs. Water Cub. ft. % cent. Time m. s. Water Cub. ft. Time m. s. Water Cub. ft. % cent.
As 83·93 : 4700 : 100 : 5599 = 119·12 As 64' 12" : 5599 : 60' 00" : 5232 = 111·31
Kind of Coal. Quantity of Coal used. Water evaporated. Per centage of Water evaporated. Time required. Water evaporated per hour. Per cent of Water evaporated per hour.
Cub. ft. m. s. Cub. ft.
Average North of England ... 100 4700 100·00 60' 00" 4700
North of England.. (Mean of 10 trials) ... 100 4967 105·68 56 02 5318
Welsh (Mean of 10 trials) ... 100 5190 110·42 59 03 5277
New South Wales... (Eleven different kinds) ... 100 4723 100·48 60 16 4702
Grey— In Boxes, dead small taken out— Worst result ... 100 5212 110·89 71 57 4346
Best result ... 100 5640 120·00 62 19 5430
Mean of 4 trials ... 100 5389 114·65 65 56 4904
Grey— In Bags, dead small— Not stoked—Mean of 2 trials ... 100 5389 114·65 67 27 4793
Stoked—Mean of 3 trials ... 100 5367 114·19 63 23 5080
GENERAL AVERAGE... ... 100 5372 114·29 65 30 4920
Buller (One trial) ... 100 5599 119·12 64 12 5232


Next Page →



Online Sources for this page:

PDF PDF Nelson Provincial Gazette 1866, No 16





✨ LLM interpretation of page content

🌾 Mr. Trickett's additional trials of New Zealand coal (continued from previous page)

🌾 Primary Industries & Resources
Coal, New Zealand, Evaporation, Statistics, Buller Coal, Grey Coal, North of England Coal, Welsh Coal, New South Wales Coal