4 replies to this topic

[Malibe]

Dear all,

I have experienced an unexpected high fuel consumption over the last two months. The problem started when we introduced furnace oil of 125cSt, originally we had been using Furnace oil of 150cSt viscosity.

I tried to look at all angles like servicing steam traps, fire tubes cleaning, reduction of blowdown rate from 5 secs to 3 secs per shift of 8 hrs, cladding the boiler. The condensate recovery is well achieved, make up water temperature is 80 deg C and make up water is about 10%. stack temperature is 250 deg C

But still I am getting high Fuel consumption of 6.2Lts /Hls instead of 5.3Lts/ Hls of beer packaged, we run 7 days a week for 24hrs. The GCV of furnace we use here is 45.5MJ/kg. also the boiler is fully modulated . The operating range is 8.3 to 9.6bar.

Please can you assist for this high usage?

Joseph Malibe

[mbeychok]

Joseph Malibe:

How do you know that your fuel rate is higher? From a change in the liquid level of a fuel storage tank over a measured period of time? Or from a flowmeter of some sort? If from a flowmeter, have you considered the fact that the lower viscosity may have caused the flowmeter readings to increase?

Would you please spell out what you mean by LTs/Hls ... I haven't the faintest notion what that means.

[gvdlans]

Let me guess: Lts/Hls means "liters of fuel oil consumed per hectoliter of beer packaged". An interesting unit indeed...

[Malibe]

It is right LTS/Hls means "Litres of fuel consumed per Hectoliters of packaged beer". To know the quantity of fuel used we use volumetric meter reading installed in the boiler and counterchecking with the Fuel tank level. This amount is divided by hectoliters of packaged beer. The ratio seems to be very high compared to previous usage before changing to 125cSt.

Please assist

Regards

Joseph