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Thermophysical Property Estimation by Transient Experiments: The Effect of a Biased Initial Temperature Distribution
المؤلفون المشاركون
Scarpa, Federico
Tagliafico, Luca A.
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2015، العدد 2015 (31 ديسمبر/كانون الأول 2015)، ص ص. 1-9، 9ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2015-07-22
دولة النشر
مصر
عدد الصفحات
9
التخصصات الرئيسية
الملخص EN
The identification of thermophysical properties of materials in dynamic experiments can be conveniently performed by the inverse solution of the associated heat conduction problem (IHCP).
The inverse technique demands the knowledge of the initial temperature distribution within the material.
As only a limited number of temperature sensors (or no sensor at all) are arranged inside the test specimen, the knowledge of the initial temperature distribution is affected by some uncertainty.
This uncertainty, together with other possible sources of bias in the experimental procedure, will propagate in the estimation process and the accuracy of the reconstructed thermophysical property values could deteriorate.
In this work the effect on the estimated thermophysical properties due to errors in the initial temperature distribution is investigated along with a practical method to quantify this effect.
Furthermore, a technique for compensating this kind of bias is proposed.
The method consists in including the initial temperature distribution among the unknown functions to be estimated.
In this way the effect of the initial bias is removed and the accuracy of the identified thermophysical property values is highly improved.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Scarpa, Federico& Tagliafico, Luca A.. 2015. Thermophysical Property Estimation by Transient Experiments: The Effect of a Biased Initial Temperature Distribution. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1073970
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Scarpa, Federico& Tagliafico, Luca A.. Thermophysical Property Estimation by Transient Experiments: The Effect of a Biased Initial Temperature Distribution. Mathematical Problems in Engineering No. 2015 (2015), pp.1-9.
https://search.emarefa.net/detail/BIM-1073970
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Scarpa, Federico& Tagliafico, Luca A.. Thermophysical Property Estimation by Transient Experiments: The Effect of a Biased Initial Temperature Distribution. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1073970
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1073970
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