Boiling water with metal heat store at 500C
Boiling water with metal heat store at 500C
(OP)
I already posted in combustion engineering forum however it was suggested it may be more appropriate here
I am looking for a method of boiling water with a heat store well above (+500C) boiling point of water without having to pressurize system.
Object is to dispense drinking water at 100C (about 2L/min). Input temperature 5-10C at 0.2 to 2 bar.
I know the water encountering +500c is going to be explosive so I am considering how to regulate the heat transfer at the water heat source interface to keep it below b.p. of water yet still maintain sufficient temperature gradient to allow a good rate of heat transfer.
Any comments welcome.
Many thanks
I am looking for a method of boiling water with a heat store well above (+500C) boiling point of water without having to pressurize system.
Object is to dispense drinking water at 100C (about 2L/min). Input temperature 5-10C at 0.2 to 2 bar.
I know the water encountering +500c is going to be explosive so I am considering how to regulate the heat transfer at the water heat source interface to keep it below b.p. of water yet still maintain sufficient temperature gradient to allow a good rate of heat transfer.
Any comments welcome.
Many thanks





RE: Boiling water with metal heat store at 500C
One big question is how much latency you're allowed to have before water at the 100°C temperature is dispensed. Even if the latency is ostensibly close to zero, you can simply limit the secondary loop to a much smaller mass transfer, compared to the 2L/min water flow.
Are you going to have an intermediate storage? It's pretty hard to get "instant on" flow without one.
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