Coal trial statistics




65

TRIALS OF NELSON (NEW ZEALAND) COAL, in comparison with NORTH COUNTRY and WELSH COAL, at the Trial Boiler, Woolwich, 23rd January, 1866.

Kind of Coal. Date of Trials. Lbs Water evaporated to 1 lb Coal consumed, from 100° constant temperature feed water. Cubic feet Water evaporated per hour, calculated from 100° constant temperature feed water. Per centage of Clinker. Per centage of Ash. Per centage of both Clinker and Ash. Width of Bars. REMARKS.
Inch.
COAL sent in BOXES—reported 18th December, 1865.
NEW ZEALAND COAL. 1865.
Grey Coal November 17 9 39.19 .53 4.32 4.85 ½
Grey Coal November 29 9.49 42.64 .32 2.91 3.23 ½ No stoking tool used.
Grey Coal December 1 9.47 43.97 .29 2.68 2.97 ½ Fine ash.
Grey Coal December 4 9.9 45.25 .27 3.1 3.37 Light grey smoke.
MEAN ... 9.46 42.70 .35 3.25 3.6 ½ & ⅝
Buller Coal December 13 9.83 43.92 .91 3.3 4.21 Ditto.
COAL sent in BAGS—tried since the last was reported.
1866.
Grey Coal January 12 9.46 40.36 .66 3.35 4.01
Grey Coal January 13 9.46 43.24 .8 3.85 4.65 Not stoked
MEAN ... 9.46 41.8 .73 3.6 4.33
Grey Coal January 15 9.4 44.58 .71 3.6 4.31
Grey Coal January 17 9.39 43.99 .84 3.6 4.44 Stoked.
Grey Coal January 18 9.46 44.87 .52 3.1 3.62
MEAN ... 9.42 44.48 .69 3.43 4.12
N.B. The coal sent in bags forms rather a rougher clinker than that in boxes.
NORTH COUNTRY COAL. MEAN OF TEN TRIALS 8.72 50.32 2.17 3.71 5.89 Made for the purpose of comparison with the trials of New Zealand coal.
WELSH COAL. MEAN OF TEN TRIALS. 9.11 47.75 1.94 4.22 6.16 Made for the purpose of comparison with the trials of New Zealand coal.

(Signed) J. TRICKETT,
Chief Engineer.



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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
  • J. Trickett, Chief Engineer