28
MODERN GASWORKS PRACTICE
Power
Plant
CO AL
Elevators
’CONDENSERS
£ £ per mouth-piece. £ per ton of coal per max. day.
Brought forward £ 60 Eise of roof about | of span — = 15 feet. Internal Capacity.—120 feet long X 122 feet wide X 48 feet high (this is mean height of building to half-way up roof) = 700,OCO cubic feet. Assume a steel-framed, brick-panelled structure at per cubic foot (including founda- 40,10C 182-3 320-8 •
tions) Breakers, conveyors, breaker pits, overhead hoppers, coke trucks, rails, etc. In this case average cost per mouth-piece for above would be £42. 19,000 86-4 *152-0
220 mouthpieces at £42 . N.B.—Coke conveyors would be in addition to this, say £11 to £14 per foot, or an additional cost of £2,500 to £3,200, according 9,250 42-0 74-0
to length Projector, pusher, trolley wire, 2,800 12-7 22-4
cabling and accessories Gas engines, dynamos switchboard, cabling and all accessories. In this case average cost per mouth- 4,800 21-8 384
piece £14 to £17 Max. hourly make = —ma^e 22 3,500 15-9 28-0
Carried forward .... £ 79,450 361-1 635-6 j
£
per therm produced per max. day.
2-23
1-09
0-33
0-56
041
cp
* Owing to the excess retort capacity allowed, the figures given (£281-6 and £152) for com-plete cost of retort house would naturally undergo some reduction if full carbonizing capacity was made use of.