> -----Original Message----- > From: [email protected] [mailto:[EMAIL PROTECTED] > On Behalf Of Bruce Napier > Sent: 27 November 2008 13:57 > To: [email protected] > Subject: Re: [canals-list] Off topic. How hot can water get? > > > On 27 Nov 2008, at 13:42, David Morris wrote: > > > Shoorley it depends on the pressure. If the pressure above the water > > is great enough, it will prevent the water changing state from liquid > > to vapour? > > > But you'd need an awful lot of pressure to raise the boiling point > from 100 C to 150 C.
About 300psi according to the tables >The standard pressure cooker, which achieves 15 > pounds per sq inch above atmospheric, only lifts the cooking temp by > a few degrees - most of the faster cooking comes from the pressure. > > I can't imagine a domestic appliance being approved to run at that > kind of pressure. How hot is the steam in a turbine application like > a power station generating unit or a ship, does anyone here know? > (I'm sure there is!) Gets complicated because the linear progression between pressure and temperature only applies to saturated steam and modern steam turbine plants will, to a greater or lesser extent, use superheated steam. Bru
