Energy Saving Diagnosis
The oil price has risen, but still, our fuel costs are high…
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Your boiler may not be operating in optimal condition, so consider the following seven checkpoints to save excess fuel costs.
- Does your boiler have an economizer to recover heat from the exhaust gas?
The fastest way to save energy is to increase the boiler efficiency. - When did you last check your steam traps?
Steam leakage from traps is the largest source of heat loss. - Are the steam pipes, condensate drain pipes and valves insulated?
The longer the pipes are installed, the more heat is lost from the pipes. - How much is the air-to-fuel ratio of your boiler?
Even if your boiler is a high efficiency model, it will lose efficiency if the air-to-fuel ratio is not appropriate. - Are you using a condensate recovery system?
Condensate recovery saves energy by raising the feedwater temperature. - How high is steam dryness?
Energy is saved by reducing equipment warm-up time. - Is the steam pressure optimal for your heating equipment?
The steam pressure should be adjusted if it is too much high.
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The boiler takes a long time to heat up our equipment…
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Steam dryness may not be high enough, so consider the following checkpoints to save excess fuel costs.
[Possible Causes]
- Low steam pressure and high pressure fluctuations
- Carryover due to overloading, overconcentration of boiler water, etc.
[Solutions]
- Increase steam pressure.
- Reduce steam pressure fluctuations.
- Remove condensate drain (water drop) from steam header.
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Verification of CO2 Reduction
We will verify the effect of CO2 reduction for the installed equipment.
Change to High-Efficiency Boiler
- Before
-
Large capacity boiler (Fuel oil fired)
- After
-
Once-through boiler
“Super EQOS EQi-2000NM (Natural gas fired)” x 3 unitsCO2 Reduction
409.9kg-CO2/h
(Equivalent evaporation of 2,000kg/h x 3 units)
Change from Hot Water Boiler to Vacuum Type Water Heater
- Before
-
Hot water boiler (Fuel oil fired)
- After
-
Vacuum type water heater
“Vacotin Heater GSAN-300 (Natural gas fired)”CO2 Reduction
33.8kg-CO2/h
(Heat output of 349kW)
* The above are just examples.