Solution of defrost model

William F. Mohs; Francis A. Kulacki

doi:10.1007/978-3-319-20508-3_6

Solution of defrost model

William F. Mohs, Francis A. Kulacki

Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

The differential equations describing heat and mass transfer during each stage of defrost are solved, and results are compared to measurement. Numerical solutions for defrost Stages I and II are obtained, while an analytical solution for Stage III is possible. For Stage I, the duration of the stage is predicted and validated by experiment. For Stage II, melt front and duration of the stage are predicted and in good agreement with measurement. For Stage III, the solution under predicts defrost time but generally simulating the general trends for duration seen in the experiments. We conclude with a graphical summary that indicates that further research is needed for measurements with greater super saturation and subcooling.

Original language	English (US)
Title of host publication	SpringerBriefs in Applied Sciences and Technology
Publisher	Springer Verlag
Pages	85-96
Number of pages	12
Edition	9783319205076
DOIs	https://doi.org/10.1007/978-3-319-20508-3_6
State	Published - 2015

Publication series

Name	SpringerBriefs in Applied Sciences and Technology
Number	9783319205076
ISSN (Print)	2191-530X
ISSN (Electronic)	2191-5318

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Publisher Copyright:
© 2015, Springer International Publishing Switzerland.

Keywords

Comparison of experiment and theory
Duration of defrost
Parameter variation

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10.1007/978-3-319-20508-3_6

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AU - Mohs, William F.

AU - Kulacki, Francis A.

PY - 2015

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N2 - The differential equations describing heat and mass transfer during each stage of defrost are solved, and results are compared to measurement. Numerical solutions for defrost Stages I and II are obtained, while an analytical solution for Stage III is possible. For Stage I, the duration of the stage is predicted and validated by experiment. For Stage II, melt front and duration of the stage are predicted and in good agreement with measurement. For Stage III, the solution under predicts defrost time but generally simulating the general trends for duration seen in the experiments. We conclude with a graphical summary that indicates that further research is needed for measurements with greater super saturation and subcooling.

AB - The differential equations describing heat and mass transfer during each stage of defrost are solved, and results are compared to measurement. Numerical solutions for defrost Stages I and II are obtained, while an analytical solution for Stage III is possible. For Stage I, the duration of the stage is predicted and validated by experiment. For Stage II, melt front and duration of the stage are predicted and in good agreement with measurement. For Stage III, the solution under predicts defrost time but generally simulating the general trends for duration seen in the experiments. We conclude with a graphical summary that indicates that further research is needed for measurements with greater super saturation and subcooling.

KW - Comparison of experiment and theory

KW - Duration of defrost

KW - Parameter variation

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Solution of defrost model

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