scholarly journals Fouling in a Steam Cracker Convection Section Part 1: A Hybrid CFD-1D Model to Obtain Accurate Tube Wall Temperature Profiles

2019 ◽  
Vol 41 (2) ◽  
pp. 127-137 ◽  
Author(s):  
Pieter Verhees ◽  
Abdul Rahman Akhras ◽  
Kevin M. Van Geem ◽  
Geraldine J. Heynderickx
Keyword(s):  
Wall Temperature ◽  
Tube Wall ◽  
Temperature Profiles ◽  
Tube Wall Temperature ◽  
1D Model ◽  
Steam Cracker

A Thermal Model for Concentric-Tube Overfire Air Ports

2009 ◽  
Vol 1 (1) ◽  
Author(s):  
Larry W. Swanson ◽  
David K. Moyeda
Keyword(s):  
Heat Source ◽  
Wall Temperature ◽  
Tube Wall ◽  
Operating Conditions ◽  
Transfer Model ◽  
Radiation Boundary Condition ◽  
Temperature Distributions ◽  
Airflow Distribution ◽  
Highly Nonlinear ◽  
Tube Wall Temperature

A quasisteady multimode heat-transfer model for boiler concentric-tube overfire air ports has been developed that predicts the effect of geometry, furnace heat source and heat sink temperatures, axial injector wall conduction, and coolant flow rate on the tube wall temperature distributions. The model imposes a radiation boundary condition at the outlet tip of the ports, which acts as a heat source. The model was validated using field data and showed that both the airflow distribution in the ports and tube diameter can be used to control the maximum tube wall temperature. This helps avoid tube overheating and thermal degradation. For nominal operating conditions, highly nonlinear axial temperature distributions were observed in both tubes near the hot outlet end of the port.

Nozzle tube-wall temperature measurement by radiometric techniques.

1966 ◽  
Vol 3 (7) ◽  
pp. 1144-1146
Author(s):  
E. L. GEERY ◽  
W. R. THOMPSON ◽  
J. H. BEVERIDGE ◽  
W. J. HELM
Keyword(s):  
Temperature Measurement ◽  
Wall Temperature ◽  
Tube Wall ◽  
Tube Wall Temperature

The Test of Inner-flue Tube Wall Temperature of Superheater Based on the Power Plant SIS

2010 ◽  
Author(s):  
Yu Yanzhi ◽  
Zhang Liangbo ◽  
Xu Haichuan ◽  
Chen Duogang ◽  
Dong Gongjun ◽  
...  
Keyword(s):  
Power Plant ◽  
Wall Temperature ◽  
Tube Wall ◽  
Tube Wall Temperature

Super-Heater Tube Wall Temperature Measurement Test and Analysis of 600MW Boiler

2012 ◽  
Vol 229-231 ◽  
pp. 1352-1355
Author(s):  
Zhe Wang ◽  
Cheng Pan ◽  
Hai Chuan Xu
Keyword(s):  
Temperature Measurement ◽  
Wall Temperature ◽  
Tube Wall ◽  
Main Stream ◽  
Temperature Load ◽  
Tube Wall Temperature ◽  
Super Heater ◽  
Relationship Of ◽  
The Relationship ◽  
Heater Tube

In order to precisely monitor the inner-flue tube wall temperature of the boiler platen super-heater, the temperature measurement test of inner-flue and outer-flue tube wall has been carried out. And the data of inner-flue and outer-flue tube wall temperature was acquired in real time. According to the experimental data, the correlative rule about inner-outer flue tube wall temperature was analyzed and researched. Moreover, the data was analyzed to get the relationship of wall temperature, load, water-coal ratio, main stream temperature between the inner-flue and outer-flue furnace. So the correlative formula which was based on the relation between inner-flue tube wall temperature and outer-flue tube wall temperature was built up and checked.

Sign in / Sign up

Export Citation Format

Share Document