Right. But with pressurized H2 inside the reactor - you cannot easily risk having lots of coolant tubes going thru, as sealing them would be a nightmare - and the narrowness of the form-factor - at least the images seen, do not seem to permit enough space for copper tubing around the reactor.
Ever try to seal against pressurized H2 ? Might be okay for a single tube but beyond that, it is not likely, especially for a hundred or more units. He might be able to double or more the surface area and maintain strength by machining grooves, but any time you allow nucleation sites, you can risk losing more than you gain. Again, this is a specialized area, and I was hoping someone with heat exchanger experience might be enticed to weigh-in on what is needed. At any rate - if the testing takes place in two days, we may get a better appraisal of what the parameters are. I expect the Swedes will be very meticulous, if only because they are compelled by genetics. Jones From: Mark Iverson Jones writes: "it was claiming that there was neither room nor extra mass for fins or channels. I listed that as the caveat. Rossi also says the water flow is straight thru." Ever look at how a steam locomotive boiler is constructed? The flow is straight thru and the heat xfer surface area is many many times the surface area of the outer enclosing cylinder. I posted a reply about this and attached a jpeg, but I guess Bill hasn't had time to let it thru the filter. Come to think about it, a nuclear reactor core looks similar, but is vertically oriented instead of horizontal... -Mark
