Journal article
A boiling heat transfer paradox
American journal of physics, Vol.60(7), pp.593-597
07/1992
DOI: 10.1119/1.17111
Abstract
An instructive experiment for observing the Leidenfrost phenomenon is presented. The experiment, suitable for an undergraduate experimental course, consists of introducing a copper body at room temperature into liquid nitrogen and observing its temperature history. The experiment is then repeated with the body covered by a thermal insulating material, observing that the body reaches thermal equilibrium much more rapidly in the second case. This apparent paradox greatly motivates the students, who need to understand the different regimes of boiling heat transfer to resolve it. The paper also contains an approximate method to determine the insulator thickness that gives the minimum cooling period.
Details
- Title: Subtitle
- A boiling heat transfer paradox
- Creators
- G. Guido Lavalle - Centro Atómico Bariloche and Instituto Balseiro, Comisión Nacional de Energía Atómica, 8400 Bariloche, ArgentinaP Carrica - Centro Atómico Bariloche and Instituto Balseiro, Comisión Nacional de Energía Atómica, 8400 Bariloche, ArgentinaV Garea - Centro Atómico Bariloche and Instituto Balseiro, Comisión Nacional de Energía Atómica, 8400 Bariloche, ArgentinaM Jaime - Centro Atómico Bariloche and Instituto Balseiro, Comisión Nacional de Energía Atómica, 8400 Bariloche, Argentina
- Resource Type
- Journal article
- Publication Details
- American journal of physics, Vol.60(7), pp.593-597
- DOI
- 10.1119/1.17111
- ISSN
- 0002-9505
- eISSN
- 1943-2909
- Number of pages
- 5
- Language
- English
- Date published
- 07/1992
- Academic Unit
- Mechanical Engineering; IIHR--Hydroscience and Engineering
- Record Identifier
- 9984064232302771
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