Destruction simulations with RBD bullet solver and Pyro solver. I was testing a workflow to crate destruction with fire and smoke. I simulated the destruction first, with RBD solver, using a force on certain parts to blast them .Then sourced smoke from the inside part of the broken pieces, which exceed a certain treshold impact. Then I added the fire by sourcing from the same geo, that I used for the force for the RBD sim.

That looks great.
Just a little advice, building demolition explosions are not very much gasoline explosions with big fireballs.
Most of the effect is blast and smoke.
And, you are not using composing right? You rendered all this out with one shot?