Abo Bibliothek: Guest

ISSN Online: 2377-424X

ISBN Print: 0-85295-345-3

International Heat Transfer Conference 10
August, 14-18, 1994, Brighton, UK

DIRECT CONTACT BOILING AT THE SUPERHEAT LIMIT

Get access (open in a dialog) DOI: 10.1615/IHTC10.580
pages 347-352

Abstrakt

The dynamic behavior of a single liquid butane droplet boiling explosively at its superheat limit has been experimentally and theoretically studied. A high speed photographic system and a fast response pressure transducer were employed in order to visualize and document the rapid process (to the order of 10&#minus;5 sec).
The phenomenon of dynamic instability that distorts and roughens the evaporating surface has been confirmed.
The pressure trace obtained reaches its maximum value as the vaporization consumes the entire liquid mass.
As the ambient pressure increases, the maximum pressure generated by the explosion decreases and is finally suppressed to a value which can not be detected. Such a phenomenon is of significant importance from the point of view of LMMHD (Liquid Metal MHD) power generation in which water is supposed to be injected into hot liquid metal under high pressure and hence reduce the possibility of damage.