Hi, nice to see that you're still improving Helmod !
With latest full Pyanodon and pY Pollution & Energy : https://mods.factorio.com/mod/pypollution
(Base time : 1s)
18.74 kg of Raw Coal with Fuel value 3 MJ/kg is burned in a 100% efficiency Boiler and produces
18.74 kg × 3 MJ/kg = 56.22 MJ
stored in
56.22 MJ / (165 °C - 15 °C) / ( 200 J / °C / L ) = 1874 L of 165°C steam.
Helmod does this correctly.
However, when it comes to consume this steam,
in a 100% efficiency Steam Engine that takes up to 500°C steam,
instead Helmod says that 181.7 MW of electricity are produced
This is clearly because Steam Engines seem to assume that the steam is 500°C, as
181.7 MW / (500 °C - 15 °C) / ( 200 J / °C / L ) = 1873 L/s of 500°C steam ?
https://i.imgur.com/V7G7usa.png