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Engine LO Consumption

07/27/2018 4:31 AM

Dear All,

please correct me, if i say my power generation is 9205MW total and Lube Oil consumption in engine 1000ltr , so 1000*oil density 0.85/9205 =0.0923 grams/kw

but if i want Ltr/Mw , so i simply divided 1000ltr/9205Mw = 0.1086ltr/Mw ?

is there anything i should know regarding Litres-atmosphere ?

this two results are not same.

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#1

Re: Engine LO consumption

07/27/2018 4:47 AM

I don't think you mean "Lube Oil".

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#4
In reply to #1

Re: Engine LO consumption

07/27/2018 6:07 AM

Yes, i am taking about LO lube oil which is using in engines , not fuel petrol, gas or diesel

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#2

Re: Engine LO consumption

07/27/2018 5:55 AM

Alikhankk, you say that the "engine" is 9205 MW - this is veeeeery big engine - are you sure you have the units right. To the best of my knowledge the most powerful steam turbines in the world are the Hinkley Point nuclear plant ones at 1770 MW and if your generator is a diesel engine then you are looking at a maximum of around 80 MW.

It is quite unusual to come across a specification for a machine stating ltr/MW of lubricating oil consumption. It also has little meaning until you add a unit time to it and state it in l/kWhour.

g/kwh or l/kWh fuel consumption is however quite common.

Not sure what you mean by Litres-atmosphere. Your answers are the same if you assume a specific gravity (not density) of 0.85.

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#5
In reply to #2

Re: Engine LO consumption

07/27/2018 6:14 AM

I am talking about 10 engines not one unit , the this is total output mentioned in Mw in the month, along with lube oil consumption of that month in ltrs .

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#26
In reply to #5

Re: Engine LO consumption

07/31/2018 3:58 AM

Surely you should be checking each engine separately in case one (or more) engines are consuming the oil?

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John

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#27
In reply to #26

Re: Engine LO consumption

07/31/2018 9:21 AM

Taking all ten engines out at the same time for service might actually solve the root of this problem.

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#3

Re: Engine LO consumption

07/27/2018 6:01 AM

I'd be on the blower to the equipment manufacturer if were you, because if any equipment is consuming lubricating oil, then something isn't right with it, Mildred.

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#6
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Re: Engine LO consumption

07/27/2018 6:16 AM

Mind, if I had a 10,000,000+ hp engine, I'd expect it to use a bit of oil!

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#7
In reply to #3

Re: Engine LO consumption

07/27/2018 6:22 AM

Dear Sir,

a certain limit engines consume little percentage of oil , if it cross that limit then equipment has some problem .

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#10
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Re: Engine LO consumption

07/27/2018 7:50 AM

I'd still be on the phone to the manufacturer rather than mucking about on here.

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#14
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Re: Engine LO consumption

07/27/2018 8:07 AM

You need to state what that limit is so that everyone else can understand what you are trying to get at. You're not there yet, and I would have thought that 14 replies would tell you that!

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#8

Re: Engine LO consumption

07/27/2018 7:35 AM

Unless this oil is instantly consumed then this is obviously wrong. None of your metrics include time.

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#9
In reply to #8

Re: Engine LO consumption

07/27/2018 7:41 AM

running hours are 744Hours each unit , Oil mentioned is the total of all 10 units

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#11
In reply to #9

Re: Engine LO consumption

07/27/2018 7:52 AM

Well, why didn't you say that in you original post? After all, it is that detail that enables you to complete the arithmetic!

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#12
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Re: Engine LO consumption

07/27/2018 7:54 AM

sorry for that. the total power output is also total of the month and oil consumption also total of the month , 744 Hours

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#13
In reply to #12

Re: Engine LO consumption

07/27/2018 7:58 AM

Fine. Off you go, then.

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#15
In reply to #12

Re: Engine LO consumption

07/27/2018 8:18 AM

Consuming more than a liter of oil every hour tells me that the diesel engine of this generator needs servicing. The engine manufacturer specifications should be reviewed. One manufacturer has a nice paper on this.

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#16
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Re: Engine LO consumption

07/27/2018 10:45 AM

That's why a phone call to the manufacturer is overdue.

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#17
In reply to #16

Re: Engine LO consumption

07/27/2018 10:53 AM

I suspect the problem with the OP calling the OEM is evident with the disorganized information presented. A similar communication breakdown between OEM and OP likely will or already has happened.

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#18

Re: Engine LO Consumption

07/27/2018 11:06 AM

You should have a graph that is the result of maintenance data that measures oil usage over time....When oil usage reaches a certain point then a rebuild or overhaul is due...I don't get what you are trying to figure out? Usage of grams per kw is useless information it seems to me....

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#19
In reply to #18

Re: Engine LO Consumption

07/27/2018 11:41 AM

Metrics, like commented lines of code per liter of coffee consumed...

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#21
In reply to #19

Re: Engine LO Consumption

07/27/2018 1:01 PM

We're minin' "big data" here boy..!!

Stop tryin' to make sense out of everything....!

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#20

Re: Engine LO Consumption

07/27/2018 11:50 AM

One or more of these gensets needs a ring job. Get on with it.

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#22

Re: Engine LO Consumption

07/28/2018 4:51 PM

What does your mechanic say? If you're the mechanic, I think we know the problem. Call tech services of the engine maker.

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#23

Re: Engine LO Consumption

07/29/2018 9:40 PM

The question is legitimate, but the units need to be consistent. OP is trying to determine if his string of ten 1MW units has reasonable oil consumption for a month's worth of generation, and presumably the LO cost per MWhr produced.

In addition to Lyn's link, OP will find more info here.

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#25
In reply to #23

Re: Engine LO Consumption

07/30/2018 9:45 AM

Yes, I too believe this is a very legitimate question. The relevant information was not very well organized and I'm still uncertain as to how much oil is missing. I suspect some of the disorganizations presented were due to language translation.

I do have a caution for the OP. Identifying and measuring all of the power production attributes (mechanical/electrical loads, hydrocarbon byproducts, oil impurities before and after use, fuel quality, barometric pressure, etc.) to detect a problem before it becomes critical can easily baffle anyone. Some mechanical failures happen with little warning. Some detectable mechanical failures are so rare the expense to detect is not worth it.

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#24

Re: Engine LO Consumption

07/29/2018 10:56 PM

You can't isolate a problem by using averages.

I'm out of here.

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