Design and Optimization of Temperature Acquisition System for Determination of Effective Thermal Conductivity of Pebble Bed

2017 ◽  
Author(s):  
Pengxin Cheng ◽  
Cheng Ren ◽  
Yongyong Wu ◽  
Rui Li
Keyword(s):  
Heat Transfer ◽  
Thermal Conductivity ◽  
Data Acquisition ◽  
Effective Thermal Conductivity ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Test Facility ◽  
Software Systems ◽  
Pebble Bed

A full-scale heat transfer test facility has been designed and built for the determination of effective thermal conductivity of pebble bed, which is a macroscopic parameter to characterize the heat transfer capacity of the core in the High Temperature Gas-Cooled Reactor. The data acquisition system is developed to collect, display and record the temperature data in monitoring points. Two alternative software systems are designed to obtain better performance. To enhance precision of the measurement system, several aspects are analyzed and optimized in the implementation of LabVIEW. The error of the hardware system is analyzed, which is within the acceptable range. The data acquisition system can meet the practical demands of temperature acquisition in the range of thermal analysis.

scholarly journals Data acquisition system for medium power neutral beam test facility

1978 ◽  
Author(s):  
C.R. Jr. Stewart ◽  
J.E. Jr. Francis ◽  
C.E. Hammons ◽  
W.K. Dagenhart
Keyword(s):  
Data Acquisition ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Neutral Beam ◽  
Test Facility ◽  
Beam Test

scholarly journals Thermal Dispersion in Porous Media—A Review on the Experimental Studies for Packed Beds

2013 ◽  
Vol 65 (3) ◽  
Author(s):  
Türküler Özgümüş ◽  
Moghtada Mobedi ◽  
Ünver Özkol ◽  
Akira Nakayama
Keyword(s):  
Heat Transfer ◽  
Thermal Conductivity ◽  
Porous Media ◽  
Effective Thermal Conductivity ◽  
Experimental Studies ◽  
Experimental Methods ◽  
Packed Beds ◽  
Thermal Dispersion ◽  
Heat Addition

Thermal dispersion is an important topic in the convective heat transfer in porous media. In order to determine the heat transfer in a packed bed, the effective thermal conductivity including both stagnant and dispersion thermal conductivities should be known. Several theoretical and experimental studies have been performed on the determination of the effective thermal conductivity. The aim of this study is to review the experimental studies done on the determination of the effective thermal conductivity of the packed beds. In this study, firstly brief information on the definition of the thermal dispersion is presented and then the reported experimental studies on the determination of the effective thermal conductivity are summarized and compared. The reported experimental methods are classified into three groups: (1) heat addition/removal at the lateral boundaries, (2) heat addition at the inlet/outlet boundary, (3) heat addition inside the bed. For each performed study, the experimental details, methods, obtained results, and suggested correlations for the determination of the effective thermal conductivity are presented. The similarities and differences between experimental methods and reported studies are shown by tables. Comparison of the correlations for the effective thermal conductivity is made by using figures and the results of the studies are discussed.

Determination of forces in alpine skiing and snowboarding: Validation of a mobile data acquisition system

2010 ◽  
Vol 10 (1) ◽  
pp. 31-41 ◽  
Author(s):  
Gerhard Stricker ◽  
Peter Scheiber ◽  
Elke Lindenhofer ◽  
Erich Müller
Keyword(s):  
Data Acquisition ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Alpine Skiing ◽  
Mobile Data

scholarly journals Determination of characteristics of feromagnetic material using modern data acquisition system

2009 ◽  
Vol 6 (3) ◽  
pp. 451-459 ◽  
Author(s):  
Branko Koprivica ◽  
Alenka Milovanovic ◽  
Milic Djekic
Keyword(s):  
Mathematical Model ◽  
Data Acquisition ◽  
Hysteresis Loop ◽  
Electrical Steel ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Measuring System ◽  
Data Acquisition Software ◽  
Data Acquisition Card

This paper describes the use of modern measuring and data acquisition system for determining characteristics of feromagnetic material. For this purpose data acquisition card NI USB-6009, PC with data acquisition software and fluxmeter Electrical Steel Measuring System MPG 100 D were used. Based on the results obtained by measurements the modeling of hysteresis loop is performed by using appropriate mathematical model.

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