Why is the figure for fuel consumption coded ?

Sparky

example from the ship0.xml file:

index 53, ship CANBERRA
<treibstoffverbrauch>299,2</treibstoffverbrauch>
KARA Fuel usage 574,1 t/day.

index 60, ship TRELYON
<treibstoffverbrauch>240</treibstoffverbrauch>
KARA Fuel usage 14,1 t/day

That is quite a mystery and hard to understand.
Can someone explain the calculation which leads to these figures please.

Christian Todt · Posted: Mon Aug 25, 2008 6:10 pm Post subject:

i'm not quite sure, but i think that i've read somewhere in the forum, that
the value of 'treibstoffverbrauch' is a relative value.
as far as i know the fuel consumption depends on the
max speed and the power of the ship.
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rdklein · Posted: Mon Aug 25, 2008 7:56 pm Post subject:

yes thats exactly like its done,
I can provide the calculation for this also here tomorrow.

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Sparky · Posted: Mon Aug 25, 2008 9:37 pm Post subject:

many thanks for your answers.
RedEvil's calculation is ok for the Trelyon but not for the Canberra (difference of ~150 tons). But both ships are extremes for min and max, so it might be ok for the average ship.

It would be very nice if RDK could provide the correct formula.

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Sparky · Posted: Mon Aug 25, 2008 10:48 pm Post subject:

You are right.
I checked a file from a former update and found
<treibstoffverbrauch>260</treibstoffverbrauch>
kw is in both files 80.000

80000/(410-260) = 533,3 t/d
KARA = 499,2 t/d
That's better, only 8% deviation.

(Sri, my fault, Embarassed

I know when this happend ...)

rdklein · Posted: Tue Aug 26, 2008 7:19 am Post subject:

here the forumla:

tprotag = ((grammverb * (maschkw / 1000#)) * 24#) / 1000#

maxv = max speed in KN
speed = current speed

verbrauch = ((tprotag - 1) * speed * speed * speed) / (maxv * maxv * maxv) + 1#

the "24" comes from kiliowattstunden = kilowatthours...
with this formula you get the 499.2 t/day

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Christian Todt · Posted: Tue Aug 26, 2008 7:57 pm Post subject:

does poc lock the maxspeed if the value of kW ist to low?
it should be.
otherwise someone could create a vessel with high speed and
very low fuel consumption just creating a ship e.g.
kW = 10.000
maxspeed= 40kn

that would be quite unfair as the highscore for the
useraddons takes values from games played with user_addons also with unreal biult vessels.

CT
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rdklein · Posted: Tue Aug 26, 2008 8:07 pm Post subject:

I dont check because its difficult for future fessels etc. There would be some signing process a better choice (we also thing about this as the online versio shoudl have addons also and there fooling must be prohibited).

But if user addons are loaded a different highscore is used.

Christian Todt · Posted: Tue Aug 26, 2008 8:16 pm Post subject:

i think for the online version the addonships should be avaiable global
(so if one does an addon and lads it up, it appears for everyone, who enabled the user addons in poc online)

anothe thing is the fuel consuption, when using a special ship,
e.g. the sub arctica, which , according to the kara infos but not indeed,
sails with fuel cells, as there are other consumptions.
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rdklein · Posted: Tue Aug 26, 2008 8:46 pm Post subject:

yes for the online version much more must be done, some automatic calc of course etc. ...

for pocxxl , we also need some propulsion additions, for the other type of vessels of course. Also events, repair, maintenance intervals, checks etc.. for the small water version, there will be regular intervals for the engines to be replaced (for xxl we need this also). So we can start with some list oof ideas for this for example.

also theer are different types of fuels used in the hrabour and on the ocean, which we can add as attribute (not for the beginner but for th expert modus).