Liquid-solid contact in pool film boiling from a cylinder

Journal Article · Thu Feb 01 04:00:00 EST 1990 · Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States)

DOI:https://doi.org/10.1115/1.2910359· OSTI ID:5754278

Chang, K H ^[1]; Witte, L C ^[2]

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1. Imo Delaval, Inc., Los Angeles, CA (United States)
2. Univ. of Houston, TX (United States)

In film boiling, liquid is separated from the heating surface by the formation of a continuous vapor film. But some experiments have shown evidence of intermittent liquid-solid contact as shown by photographs and signal traces when boiling conditions are near the minimum film boiling point. The present study investigated the possibility of such contact in pool film boiling. The measurement of contact was carried out by using a microthermocouple probe with its thermo-junction flush with heater surface. Surface temperature depressions caused by liquid-solid contacts were obtained through the rapid response of the probe coupled to a data acquisition system. The contact parameters at varying boiling conditions were found from the history of the temperature depressions.

• OSTI ID: 5754278
• Journal Information: Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States), Journal Name: Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States) Vol. 112:1; ISSN 0022-1481; ISSN JHTRA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
BOILING
CYLINDERS
ELECTRIC CONDUCTIVITY
ELECTRIC IMPEDANCE
ELECTRICAL PROPERTIES
EQUIPMENT
FIBER OPTICS
FILM BOILING
HEAT FLUX
HEATING
IMPEDANCE
INTERFACES
MEASURING INSTRUMENTS
MEASURING METHODS
OPTICAL EQUIPMENT
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
POOL BOILING
SUPERHEATING
THERMOCOUPLES