The steam pressure in the heater may be periodically varied by the gauge in such a manner as to produce an approximately simple harmonic oscillation of temperature at the hot end, while the cool end is kept at a steady temperature.
Cynthia sat huddled in the corner of her seat, away from Dean, her tiny size looking childlike as she trembled, in spite of the fact the Jeep's heater was set on high.
For a few moments, on its way to a steam and juice separator, where the steam due to the superheated juice flashes off, and is either utilized for aiding the steam supplied to the multiple effect evaporators, or for heating cold juice on its way to the main heater, or it is allowed to escape into the atmosphere.
H is an electric heater for raising the body to a suitable temperature, which can swing into place directly over the calorimeter.
Every installation is made up of a boiler or other water heater, a tank or cylinder to contain the water when heated, and a cistern of cold water, the supply from which to the system is regulated automatically by a ball valve.