Let us imagine, for a moment, a #CarbonFree #SteamEngine
A #Locomotive , for pulling a #train.
We would be doing this for #fun wouldn't we, so #efficiency is not a major concern, and even #effectiveness is not the main constraint.
First off and really easy is what the #LondonUnderground, the#Tube, did in early days - make the boiler and firebox rather hot, use that to generate steam to propel the thing undergound, heat it up again when you get back into fresh air.
No need to use #Coal now.


