21st Century Vapor?

Mike T., Swampeast MO

Please forgive this lack of steam knowledge but...

As I understand vapor systems they no longer modulate (i.e. make vapor at different temperatures) once the old solid fuel boiler is removed.

Why not:

1) Install a tank (as part of below atmospheric pressure VAPOR system) with a heat exchanger connected to a SEPARATE heat source. Of course tank is not completely full and there is a sight glass, water feed, low water cutoff, etc.

2) Use a MODULATING boiler (connected to tank HX) to supply just the amount of heat required to produce vapor at the temperature required.

Unknown

It's still going, and going.....

http://www.mepcollc.com/VV.htm#mepco2

Mike T., Swampeast MO

But what happens if you don't want the vacuum pump? The old vapor systems had none.

They used the "collapsing" of steam to generate their VARIABLE driving force.

Unknown

two different animals

vapor used the collapsing steam to extend the coal cycle longer into the night.

Vacuum systems fed steam into an induced vacuum to deliver it at pressures below zero, through a king valve at the boiler. They used a steam ejector on the system outlet, usually after the steam to electricity generator set that was in the building at the turn of the century.

It isn't clear to me how a collapsing steam condition could be fed live steam and continue to be in a vacuum.

I think it would have to be a huge condensor (radiator) to maintain a vacuum and heat the spaces.


Interesting discussion.

Noel