TOP 30 ENERGY SAVINGS TIPS FOR POWER PLANT ENGINEERS - ASKPOWERPLANT

TOP 30 ENERGY SAVINGS TIPS FOR POWER PLANT ENGINEERS

TOP 30 ENERGY SAVINGS TIPS FOR POWER PLANT ENGINEERS
BOILER OPERATION

 

TOP 30 ENERGY SAVINGS TIPS FOR POWER PLANT ENGINEERS

Today we discussed about a very important topic of power plant and as well as energy sector , which is energy saving opportunity in these sectors. Now these days every industry invest a huge capital in the field of energy saving . Energy saving reduced the cost of plant Operation as well as also optimize the efficiency of plant. Here we are discussed most important energy saving tips which surely reduced the cost of plant Operation and also helps us for saving energy.

1. Inspection for scale and sediment on the water side
( A 1 mm thick scale on the water side could increase fuel consumption by 5 to 8% )

2. Inspect door gasket
3. Optimize deaerator venting
4. Use boiler blow down to help warm the back up boiler.
5. Optimize/ automate boiler blow down recovery boiler blow down heat.
6. improve oxygen trim control ( e.g limit excess air to less than 10% on clean fuels )
( 5% reduction in excess air increase boiler efficiency by 1% or 1% reduction of residual oxygen in stack gas increase boiler efficiency by 1 %)
7. close burner air and or stack dampers when the burner is off to minimize heat loss up the stack.
8. Inspect oil heaters for proper oil temperature
9. Clean burners, nozzles strainers etc.
10. Insulate exposed heated oil tanks.
11. Burn wastes if permitted.
12. Preheated Combustion air with waste heat
( If 22 deg. C reduction in flue gas temperature increase boiler efficiency by 1 % )
13. Schedule boiler efficiency – maintenance program. Start with an energy audit and follow up , then make a boiler efficiency maintenance program a part of your continuous energy management program.
14. ensure condensate is returned or reused in the process 6 deg.c raise in feed water temperature by economizer condensate recovery corresponds to a 1% saving in fuel consumption in boiler.
15. Check steam Traps operation according to scheduling.
16. Recover blow down losses.
17. Preheated boiler feed water.
18. Remove or blank off all redundant steam piping.
19. reduced hot water wastage to drain.
20. Maintain powder acceptable process steam pressures.
21. Ensure process temperature are correctly controlled
22.use more efficiently stem desuperheating methods.
23. Use back pressure steam turbines to produced lower steam pressures.
24. Accumulate work orders for repair of steam leaks that can’t be fixed during the heating season due to system shutdown requirement. Tag each such leak with a durable tag with a good description.
25. fix steam leaks and condensate leaks
( A 3mm diameter hole on a pipe line carry 7 kg/cm2 steam would waste 33 kilo liter of fuel oil per year.)
26. Established a steam efficiency maintenance program. Start with an energy audit and follow up then make a steam efficiency maintenance program a part of your continuous energy management program.
27. Use electrical pump instead of steam ejector when cost benefits permit.
28. Use absorption chiller to condense exhaust steam before returning the condensate to the boiler.
29. Use waste steam for water heating.
Consider recovery of vent steam ( e.g – on large flash tanks )
30. Inspect steam Traps regularly and repair malfunctioning Traps promptly.

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