Effect of fouling on temperature measurement error and a solution

被引:7
作者
Cho, YI [1 ]
Choi, BG [1 ]
机构
[1] Drexel Univ, Dept Mech Engn & Mech, Philadelphia, PA 19104 USA
来源
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME | 1998年 / 120卷 / 02期
关键词
fouling; heat transfer; probes; temperature; thermocouples;
D O I
10.1115/1.2824282
中图分类号
O414.1 [热力学];
学科分类号
摘要
The objective of the present study was to investigate the effect of fouling on the accuracy of temperature measurement. When a thin scale layer is deposited on a temperature-measuring probe, the temperature reading can be in error by several degrees in spite of +/-0.1 K resolution of the probe. This erroneous temperature reading can pose a serious problem in the evaluation of heat exchanger performance and in the operation of an automated process control system.
引用
收藏
页码:525 / 528
页数:4
相关论文
共 12 条
[1]  
*ASTM, 1981, ASTM STP B, V470
[2]  
Bott T.R., 1995, FOULING HEAT EXCHANG
[3]   Theory of electronic anti-fouling technology to control precipitation fouling in heat exchangers [J].
Cho, YI ;
Fan, CF ;
Choi, BG .
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 1997, 24 (06) :757-770
[4]  
Cho YI, 1997, COMPACT HEAT EXCHANGERS FOR THE PROCESS INDUSTRIES, P267
[5]  
CINROPERA FP, 1996, FUNDAMENTALS HEAT MA
[6]  
Cowan J.C., 1976, Water formed scale deposits
[7]  
Fan C, 1997, THESIS DREXEL U PHIL
[8]   Microscopic observation of calcium carbonate particles: Validation of an electronic anti-fouling technology [J].
Fan, CF ;
Cho, YI .
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 1997, 24 (06) :747-756
[9]  
FAN CF, 1997, P NAT HEAT TRANSF C, V12, P183
[10]  
Kerlin T. W., 1982, IND TEMPERATURE MEAS