Key Path:
To keep the content of the Burner/Heat Intake liquid chamber constant, the heat that is being extracted by the Turbine is replaced by the same amount that is sent from the Burner flame or the Heat Exchanger (HEX).
Furthermore, a certain amount of reserve heat is needed to smooth out fluctuations.
Example: If 1kg/s of vapor is being extracted and directed to the Turbine, about 100kg of preheated vapor that will cover 100s on reserve heat requirements should be available inside the Burner/Heat Intake liquid chamber.
In reference to VHE, the heat power reserve will smooth out short time peak power requirements, so that 100kg of extra propellant vapor is all right as vapor drive reserve for the 44 ton truck.
In reference to the SHE, 1000kg of extra propellant vapor power is all right.
Glycerol can be the heat transfer liquid that collects heat while passing through Heat Storage (HS) and then pumped by HTP4 through B-V1, HEX and IS-V1 back to HS.
The propellant liquid in Burner/Heat Intake extracts the heat and holds it ready to be released through Dir-V1 to the Turbine.
The pressure of the vapor leaving Burner/Heat Intake will be a little higher than that which is required by the turbine, but the valve Dir-V1 will reduce it to the required amount. Note the VCTRL voltage shown in Diagram 20.