Identification of pool boiling heat transfer mechanisms in FC-72 using a single-photo method

Book · Sun Oct 01 00:00:00 EDT 1995

OSTI ID:100876

Ammerman, C N; You, S M; Hong, Y S ^[1]

---

1. Univ. of Texas, Arlington, TX (United States). Dept. of Mechanical and Aerospace Engineering

A unique method to determine the vapor flow rate above a boiling cylinder utilizing a single photograph is developed and discussed. This method is applied to a 75-{micro}m wire immersed in a saturated, highly wetting liquid (FC-72) to determine bubble departure diameter, frequency, and nucleation site density. Using the experimental results, an analysis is performed to evaluate individual heat flux contributions of the four pool boiling mechanisms: latent heat, natural convection, Marangoni flow, and micro-convection. Latent heat is identified as the dominant mechanism throughout most of the nucleate boiling regime.

• OSTI ID: 100876
• Report Number(s): CONF-950116-; ISBN 0-7918-1296-0; TRN: IM9540%%350
• Resource Relation: Conference: 1995 American Society of Mechanical Engineers (ASME) energy sources technology conference and exhibition, Houston, TX (United States), 29 Jan - 1 Feb 1995; Other Information: PBD: 1995; Related Information: Is Part Of Heat transfer in porous media and two-phase flow. HTD-Volume 302; Bayazitoglu, Y.; Sathuvalli, U.B. [eds.]; PB: 176 p.
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
LIQUIDS
POOL BOILING
HEAT TRANSFER
EXPERIMENTAL DATA
DATA ANALYSIS
WETTING AGENTS
DIELECTRIC MATERIALS
FLOW VISUALIZATION