The final time of 005 hr 180 sec is sufficient for

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ts (LINK34) Input Listing: vm107.dat Test Case A thermocouple is used to measure the temperature Tg of a gas flowing within a duct. The duct wall temperature is Tw and the thermocouple is placed at right angles to the flow. If the conduction effects are negligible, determine the thermocouple reading Tt and the heat flow rate q due to convection and radiation. Figure 107.1 Thermocouple Radiation Problem Sketch Material Properties ε = emissivity = 0.5 h = 11.85 Btu/hr-ft2-°F Stefan-Boltzmann constant[1] = 0.174 x 10-8 Btu/hr-ft2-°R4 1. Loading Tw = 300°F Tg = 1309°F As given in A. J. Chapman, Heat Transfer. Analysis Assumptions and Modeling Notes The temperature offset of 460°F is required to convert the input Fahrenheit temperatures to absolute (Rankine) temperatures. The node locations are arbitrarily selected (coincident). ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 1–241 VM107 Results Comparison Target ANSYS[1] Ratio Tt, °F 1000.00 999.95 1.000 q, Btu/hr 3661.65 3662.24 1.000 1. 1–242 At n...
View Full Document

This note was uploaded on 12/09/2010 for the course DEPARTMENT E301 taught by Professor Kulasinghe during the Spring '09 term at University of Peradeniya.

Ask a homework question - tutors are online