Steam Plant
Package boiler and Biomass Boiler - 80tph steam generation.


Main Boiler:
John Thomson
Manufacture Year: 1979
Total grate area (front shaft to rear seal) 42.4 m2
Furnace plan area 38.8 m2
Furnace volume 486 m3
Furnace heating surface: actual projected 153m2, effective projected 274m2
Tube bank heating surface, total circumferential 1949 m2
Tubular air heater surface 1793
Steam air heater heating surface, total over fins 380m2


Performance at Maximum Continuous Rate on wood firing
Steam 80 t/hr, pressure gauge 1400 kPa, feedwater temp 120deg
Gross thermal efficiency 83.1
Gas and bark fired.

Full details on request;
Maxitherm Package Boiler:
Gas Fired

Model D Water tube
Number L50 DNL/2000
D.I.R registered number 1918 278
Date registered 5/8/86
Design code AS 1228
Maximum continuous rating 50,000 kW
Kgs/hr F&A 100 Deg C
Maximum firing rate 5813 m3/min
Gas inlet pressure 400KPA/360KPA
Full details on request;
Steam Turbine:
Seimens, Model SST-060
Year: 2016
Generating 2.5Kw
1500 rpm, AFA6 G6B
Exhaust steam min 1.5 norm, 2.5 max 4.1 bar
Number 4.3666.045
1635 trip speed
Type SST-060 AFA 66B
Output 4468
Speed 1636 rpm
Steam pressure 14.8min/16.5 normal and max 21. Bar
Exhaust steam 1.5 min/2.5 normal/4.1 max /bar
With ABB Generator
Year 2016, 3 ph, 50 Hz
Output 5412 Kw, voltage 6000, speed 1500 rpm
Current 473.4 A, power factor 0.8, excitation PMG, weight 13,100 kgs, connection Y.

And Generator AVR panel 72-RP17