Cant understand precise heat-energy transfer maths. Need help

[Ambrsale]

So, I read about heat deletion bug and inspected my heat removal facility. It is pretty standart - aquatuner + turbine.
I see aquatuner constantly generates +585.06 kDTU. And Turbine gives 480-550W and 58.4 kDTU

And from the ONI wiki I`ve got
Heat power used to be measured in watts, but the units have changed to DTU/s. 1 watt is equal to 1 DTU/s.

I totally failed on connecting that math.
Incoming heat (aquatuner) - 585kDTU equals to 585 kW (by the wiki data)
outcome (turbine) - 510W (turbine) + 58kW (turbine heat)

Can someone explain this results?
I can understand 5-10-20% loss, but not 90%, as I see here.

[Ambrsale]

https://steamcommunity.com/sharedfiles/filedetails/?id=2232111283
https://steamcommunity.com/sharedfiles/filedetails/?id=2232111335

[Hedning]

A very easy way to think about it is that the steam turbine cools 2kg/s of water by up to 105°C. An aquatuner can cool 10kg of water by 14°. So the aquatuner has a capacity of 140kg water*degree/second while a steam turbine has a capacity of 210 kg water*degree/second.

If you want we can convert to dtu by multiplying the shc of water, then the numbers are 585kdtu/s for the tuner and 878kdtu/s for the turbine.

In either case we can conclude that you need exactly 1.5 tuners per turbine to produce the maximum 850W if you are using water in the tuner. That means if you have 1 tuner per turbine it seems reasonable that it will produce 510W, or in other words we can say for sure that you are not losing anywhere close to 90% to any heat deletion bug, if anything at all.

[Ambrsale]

Originally posted by Hedning:

A very easy way to think about it is that the steam turbine cools 2kg/s of water by up to 105°C. An aquatuner can cool 10kg of water by 14°. So the aquatuner has a capacity of 140kg water*degree/second while a steam turbine has a capacity of 210 kg water*degree/second.

If you want we can convert to dtu by multiplying the shc of water, then the numbers are 585kdtu/s for the tuner and 878kdtu/s for the turbine.

In either case we can conclude that you need exactly 1.5 tuners per turbine to produce the maximum 850W if you are using water in the tuner. That means if you have 1 tuner per turbine it seems reasonable that it will produce 510W, or in other words we can say for sure that you are not losing anywhere close to 90% to any heat deletion bug, if anything at all.

I`ve got your point and yes, this works, but this way of thinking requires some math. I thought about some instant result matching, like - aquatuner gives 500kw, Turbine gets 50kw, so it is looks like 1 aquatuner can feed heat to 10 turbines. And these magical numbers, given by the game, are not making things clear and simple to understand. I still dont know what these numbers mean and for what I can use them

[Hedning]

You should not try to connect electrical power to heat energy. If you just look at heat energy and compare how much different things produce, move or destroy your math will work out and it's pretty useful.

I think it is most clear that W and dtu are unrelated if we compare these two:
Liquid Tepidizer produces 4 064 000 dtu/s for 960W
Aquatuner* produces 6 720 dtu/s (and -6 720 dtu/s in its coolant) for 1200W
*if you run 1kg packets of liquid chlorine.

[Ambrsale]

Okay, I agree with idea that Electric and Heat energy are seems unrelated.
Is it a way then to know ratio for energy output by Turbine for used (removed) heat?

[Aranador]

from the oni-assistant webpage:

Steam Turbine The Steam Turbine converts heat energy directly into electricity at a rate of 1032.46DTU/s -> 1Watt. At peak operation the generator will covert heat into electricity at an average rate of 877,590DTU/s -> 850W. Excess energy put into the steam will be deleted without additional electricity production. The machine takes steam of at least 125C and outputs water at a fixed 95C. Each of the intake pipes can intake 400g/s of steam, meaning a maximum of 2kg/s if all 5 intakes are saturated.

[Ambrsale]

This is simply dont true, check starting message.
In example`s more or less stable system maths are:

"Incoming heat (aquatuner) - 585kDTU equals to 585 kW (by the wiki data)
outcome (turbine) - 510W (turbine) + 58kW (turbine heat)"

So, 585Kw is much greater than 58kW

[Hedning]

If you find a figure of 1032.46dtu = 1W for the steam turbine, then that seems likely true, however it is a specific number calculated just for that building and is not transferable to any other heat to power calculations. However since your example here is using the steam turbine we can calculate and see if the numbers are correct:

In your example:
585kdtu=510W+58kdtu
527kdtu=510W
1.033kdtu=1W

Your other source said:
1.03246kdtu=1W
There is no difference other than from rounding.

[Ambrsale]

Ah, okay, I missed point that 1kDtu equals 1 Watt, not 1 dtu