Energy Efficiency
Content
TIPS FOR ENERGY EFFICIENCY
SL
NO
1
2
3
4
5
6
7
8
9
10
DESCRIPTION
Flue gas back end temperature reduction by
22 0C
5% reduction in excess air
1% reduction of residual oxygen at stack gas
(Flue gas)
1mm thick scale on water side of pressure parts
3mm thick of soot on external surface of
pressure parts
3mm dia hole on pipe carrying 7Kg/cm2 steam
6 0C rise in temp of feed water by
economizer/return condensate
0.25mm thick air film heat transfer resistance is
equal to
A bare steam pipe of dia 150mm X100mm
length carrying 8Kg/Cm2 saturated steam
By floating 45 mm dia polypropylene plastic
ball on 90 0C hot liquid /Condensate
EFFICIENCY
Boiler efficiency will rise by
1%
Boiler efficiency will rise by
1%
Boiler efficiency will rise by
1%
fuel consumption will rise by
5 to 8%
fuel consumption will rise by
2.5%
fuel oil waste/year by 3300 ltr
Fuel consumption will be
reduced by 1%
330 mm thick copper wall
Fuel oil waste/year by
25000ltr
Hat loss can be reduced by
70%.
SL
NO
1
2
3
4
5
6
7
8
9
10
DESCRIPTION
Flue gas back end temperature reduction by
22 0C
5% reduction in excess air
1% reduction of residual oxygen at stack gas
(Flue gas)
1mm thick scale on water side of pressure parts
3mm thick of soot on external surface of
pressure parts
3mm dia hole on pipe carrying 7Kg/cm2 steam
6 0C rise in temp of feed water by
economizer/return condensate
0.25mm thick air film heat transfer resistance is
equal to
A bare steam pipe of dia 150mm X100mm
length carrying 8Kg/Cm2 saturated steam
By floating 45 mm dia polypropylene plastic
ball on 90 0C hot liquid /Condensate
EFFICIENCY
Boiler efficiency will rise by
1%
Boiler efficiency will rise by
1%
Boiler efficiency will rise by
1%
fuel consumption will rise by
5 to 8%
fuel consumption will rise by
2.5%
fuel oil waste/year by 3300 ltr
Fuel consumption will be
reduced by 1%
330 mm thick copper wall
Fuel oil waste/year by
25000ltr
Hat loss can be reduced by
70%.
