IN his Royal Society paper in 1900 and in his article on Vaporisation in the “ Encyclopædia Britannica “ of 1902, Prof. Callendar showed the use of a simple empirical formula connecting the pressure, ...

PROF. CALLENDAR, in his Royal Society paper of 1900, suggested the use as the characteristic for steam of v–b=Rθ/p–Cθn–V–c, say. This is suggested by the Joule Thomson equation for gases, where n = 2, ...

Whether you have a hot water system or a steam system, you want to get rid of the air. In a hot water system, if enough air accumulates in one place in the system, it can stop water circulation. It ...