Statistical Determination of Correlation Between Pressure and Crankshaft Angle During Indication of Combustion Engines

1998 ◽  
Author(s):  
Ales Hribernik
Keyword(s):  
Combustion Engines ◽  
Statistical Determination ◽  
Crankshaft Angle

Statistical determination of normal modes

1987 ◽  
Vol 64 (5) ◽  
pp. 425 ◽  
Author(s):  
John F. Geldard ◽  
Lawrence R. Pratt
Keyword(s):  
Normal Modes ◽  
Statistical Determination

Statistical Determination of Plating Process Variables for Multilayer Ceramic Chip Capacitors

1989 ◽  
Vol 72 (12) ◽  
pp. 2279-2281 ◽  
Author(s):  
Doug A. Benm ◽  
Carol J. Feltz ◽  
Richard Haynes ◽  
Steven C. Pinault
Keyword(s):  
Process Variables ◽  
Statistical Determination ◽  
Multilayer Ceramic

Multiparameter statistical determination of single fibre interphase properties

Ultrasonics ◽  
1995 ◽  
Vol 33 (5) ◽  
pp. 403-410
Author(s):  
Steven A. Cimaszewski ◽  
Hyunjune Yim ◽  
James H. Williams
Keyword(s):  
Single Fibre ◽  
Statistical Determination

A statistical determination of the location of emission in pulsars based on a new classification

1980 ◽  
Vol 4 (3) ◽  
pp. 220-227 ◽  
Author(s):  
Wu Xin-ji ◽  
Yang Hai-shou ◽  
Qiao Guo-jun ◽  
Deng Guo-xiang
Keyword(s):  
New Classification ◽  
Statistical Determination

Statistical Determination of the Experimental Channels Clogging Rates in Mini- and Microchannel Heat Exchangers

2019 ◽  
Vol 142 (2) ◽  
Author(s):  
Witold Rybiński ◽  
Jarosław Mikielewicz
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Theoretical Model ◽  
Pressure Drop ◽  
Cold Water ◽  
Nondestructive Method ◽  
Microchannel Heat Exchanger ◽  
Statistical Determination ◽  
Experimental Values

Abstract This paper presents a new statistical, nondestructive method for determination of the experimental channels clogging rate in a mini- or microchannel heat exchanger. Channels clogging may be caused by inaccurate fabrication of the heat exchanger or by fouling of microchannels during exploitation. The theoretical model, used in this method, predicts a significant increase of the pressure drop as the number of clogged microchannels increases. However, the exchanger’s heat transfer rate decreases moderately. It may partly be caused by the additional heat transfer in metal walls, bypassing the inactive, clogged microchannels. The presented method was tested on the prototype of a microchannel heat exchanger. The experimental values of the pressure drop of the hot and cold water flows are 2–5 times higher than the values predicted for clean microchannels. The experimental values for the pressure drop and heat transfer are in good agreement with the values calculated by the use of the theoretical model. The presented statistical method gives two channels clogging rates (for the “hot” and “cold” channels) obtained during normal exploitation without cutting (destroying) the heat exchanger.

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