Table of coal statistics




67

TABLE II.

Showing the RELATIVE VALUE for Steam Purposes of North of England, Welsh, New South Wales, and Grey and Buller Coal, calculated on the basis given by the Trials of these Coals at WOOLWICH DOCKYARD, viz.—If 100 lbs. of Average North of England Coal will evaporate a given Quantity of Water in an hour, this Table shows how the same work can be done by the other Coals.

EXAMPLE OF CALCULATION—BULLER,
Water lbs. As 983 : 100 :: Water lbs. 825 : Coal lbs. 83.92
Kind of Coal. Quantity of Coal used. Time occupied in operation. Incombustible Matter remaining.
Clinker.
lb. m. s. lb
Average North of England 100.00 60' 00" 1.00
North of England... (Mean of 10 trials.) 94.61 56 02 2.05
Welsh ... (Mean of 10 trials.) 90.55 59 03 1.75
New South Wales (Eleven different kinds.) 99.50 60 16 2.09
Grey— In Boxes, dead small taken out Worst result ... Best result ... 90.16 83.33 71 57 62 19 .48 .22
MEAN of 4 trials ... 87.21 65 56 .30
Grey— In Bags, dead small— Not stoked—Mean of 2 trials ... Stoked—Mean of 3 trials ... 87.21 87.57 67 27 63 23 .64 .60
GENERAL AVERAGE ... 87.48 65 30 .44
Buller ... (One trial.) 83.93 64 12 .76


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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
23 January 1866
Coal, New Zealand, Woolwich Dockyard, Experiments, Comparative statement, Grey Coal, Buller Coal, North Country Coal, Welsh Coal