I Need Some Help

[Steve7112004]

I'm working in a already made map in australia. I have for hours searched for the real numbers of different industries for comsuption rate and production rate in real life but no luck. If I can't atleast have the real numbers I want all of my train cars to have real numbers. I have this tank car here and trainz04 has it set at default 38800 gallons, I hope gallons never know with them. I took this pic hoping someone could look at the size of it and give the real gallon amount. The engine and tank car are both real scale. Any help I will be grateful.

 

[pfx]

You could try using the ruler tool to get the approximate length and radius of the tank and apply these to the following equation.

pi x r(squared) x length.

You will probably find this online and just have to enter the radius and length. Use an online converter to change cubic feet or metres, to gallons.

 

[NikkiA]

Tanks (and pretty much all wagons) are usually rated by their maximum allowed weight (the limiting factor is usually due to axle loads,

For example UK 102t (TDA/TEA and earlier) tankers are limited to 102 tonnes because they are bogey based wagons and standard bogies were defined as being allowed 25 1/2 tonnes per axle, so 4 axles (2 bogies) results in a maximum weight of 102 tonnes, however, that's gross weight, and includes the tank wagon itself... In the case of a TEA that usually amounts to about 30 tonnes for the wagon, leaving around 72-73 tonnes of liquid that can be carried...

So, the first step is to find out the rated capacity of the tanker you're interested in, that's usually fairly easy to find - railfans love documenting all these numbers.

You can then work out the load of a tank full of a particular liquid based on the API of the liquid involved, for crude oil its API results in a weight of 7lbs per gallon, so back to the TEA example, 72 tonnes of crude oil is 158738 lbs, or approximately 22,600 gallons of crude oil.

If you wanted your tanker to carry lighter petroleum products, or even non-petroleum products or LPG, then you'd need to find the API gravity for the liquid in question, and then calculate the pounds-per-gallon figure for it.

 

[NikkiA]

Actually, to simplify it a little...

There's a table of specific gravity of common liquid products here:

http://www.engineeringtoolbox.com/specific-gravity-liquids-d_336.html

SG is a relative density to water, since water at STP weighs approximately 8.35lbs per gallon, just take the product you want from the table and multiply it by 8.35, that is the number of pounds per gallon of that liquid

So for example, we can see that ammonia has a SG of 0.826

Or, 6.8lbs per gallon, so our TEA tanker mentioned above could carry 23015 gallons of Ammonia

 

[NikkiA]

Regarding production rates, a quick check of UK refineries (probably not TOO different from Aus. refineries) shows that they average 10-12 million tonnes of processing per year, and given the nature of the industry, it's probably fair to say that processing rate is spread evenly and you can probably conclude that they're process around 1100-1400 tonnes per hour,

Determining how much of that is allocated to each production type is a further exercise - you should check for local info, but for a sample UK refinery (Total-Lindsey refinery on the Humber, which transports much of its output via rail) gives:

30% diesel
25% petrol
17% LPG
15% heavy oil products (bitumen and fuel oil mostly)
13% kerosene and jet fuel

If you want to be accurate, you'll want to track down figures for the refinery you have in mind, but they're probably reasonable 'ballpark' figures for most refineries

 

[Steve7112004]

Thanks Very Much For All The Answers And Help. I'll work on it. Thanks again.

 

[rweber95]

The World Trade Reference has a guide showing typical US railcars and their dimensions and capacities. The guide is at http://www.worldtraderef.com/WTR_site/Rail_Cars/Guide_to_Rail_Cars.asp
Here us a sample:
Box Car, empty wt 33727 kg, Max load 96273 kg
HiCube Car, empty wt 36045 kg, Max load 93955 kg
Flat Car, empty wt 27273 kg, Max load 102727 kg
60ft Tank Car(30000gal), empty wt 29864 kg, Max load 89683 kg
Covered Hopper, empty wt 27955 kg, Max load 102045 kg
Gondola, empty wt 34091 kg, Max load 95909 kg

Bob

 

[Steve7112004]

Thank You I was looking at the part of the game named railyard and all the deminsions are there. If I post them could I get some help to solve the problem. I'm not great at math.

 

[rweber95]

Your first post shows a loco with one GATX Oil Tanker,<kuid:-3:10035>. Using CM to view the config.txt file it shows the empty weight is 14000 kg and it can load 38800 liters (which is 10250 gallons) of 4 different kinds of petroleum.
The City and Country USA 2 route has a session called Tutorial 6 - Commodities which consists of a UP DD40X loco and 8 GATX empty tankcars. In the session you drive to a refinery and load all 8 tank cars with crude oil. Crude oil is defined in kuid:-3:10010 which shows that crude mass is .9 kg per liter. Each full tankcar will therefore weigh 14000 + (.9)*38800=48920 kg. The 8 tank cars in the session will total 8*48920=391360 kg. Trainz shows all weight as tons (1000 kg) so in the session the loaded consist will show as 391 t in tow (Trainz rounds the actual 391.360 to a whole number.)

Bob

 

[Steve7112004]

Yeah I know I have done that one over and over again. Thanks for all the help everyone.