NDLI: Sensitivity analysis and numerical experiments on transient test of compact heat exchanger surfaces

Content Provider	Springer Nature Link
Author	Ren, Hesheng Lai, Lingjun Cui, Yongzheng
Copyright Year	2008
Abstract	A single-blow transient testing technique considering the effect of longitudinal heat conduction is suggested for determining the average convection heat transfer coefficient of compact heat exchanger surface. By matching the measured outlet fluid temperature variation with similar theoretical curves, the dimensionless longitudinal conduction parameter λ$_{1}$, the time constant of the inlet fluid temperature τ$^{+}$, and the number of heat transfer units N $_{tu}$ can be determined simultaneously using the Levenberg-Marquardt nonlinear parameter estimation method. Both sensitivity analysis and numerical experiments with simulated measurements containing random errors show that the method in the present investigation provides satisfactory accuracy of the estimated parameter N $_{tu}$, which characterizes the heat transfer performance of compact heat exchanger surfaces.
Starting Page	374
Ending Page	380
Page Count	7
File Format	PDF
ISSN	16737393
Journal	Frontiers of Energy and Power Engineering in China
Volume Number	2
Issue Number	4
e-ISSN	16737504
Language	English
Publisher	SP Higher Education Press
Publisher Date	2008-10-15
Publisher Institution	Chinese Universities
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	engineering thermophysics compact heat exchanger transient testing technique sensitivity analysis inverse heat transfer nonlinear parameter estimation Power Engineering
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology

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