Local entropy generation analysis
Local entropy generation analysis
Second law analysis techniques have been widely used to evaluate the sources of irreversibility in components and systems of components but the evaluation of local sources of irreversibility in thermal processes has received little attention. While analytical procedures for evaluating local entropy generation have been developed, applications have been limited to fluid flows with analytical solutions for the velocity and temperature fields. The analysis of local entropy generation can be used to evaluate more complicated flows by including entropy generation calculations in a computational fluid dynamics (CFD) code. The research documented in this report consists of incorporating local entropy generation calculations in an existing CFD code and then using the code to evaluate the distribution of thermodynamic losses in two applications: an impinging jet and a magnetic heat pump. 22 refs., 13 figs., 9 tabs.
- Office of Scientific and Technical Information United States
- Pacific Northwest National Laboratory United States
- University of North Texas United States
- Battelle United States
Consumption, Reynolds Number, Entropy, Magnetic-Pumping Heating, Temperature Gradients, Fluid Mechanics, Heat Exchangers, Mechanics, Heating, Laminar Flow, C Codes, Jets, & Utilization-- Building Equipment-- (1987-), Fluid Flow, 32 Energy Conservation, Computerized Simulation, Superconductivity And Superfluidity, Computer Codes, Benchmarks, Heat Flux, 75 Condensed Matter Physics, Analytical Solution, Plasma Heating, Regenerators, Physical Properties, Thermodynamic Properties 320106* -- Energy Conservation, Irreversible Processes, And Utilization, 640410 -- Fluid Physics-- General Fluid Dynamics, High-Frequency Heating, Simulation
Consumption, Reynolds Number, Entropy, Magnetic-Pumping Heating, Temperature Gradients, Fluid Mechanics, Heat Exchangers, Mechanics, Heating, Laminar Flow, C Codes, Jets, & Utilization-- Building Equipment-- (1987-), Fluid Flow, 32 Energy Conservation, Computerized Simulation, Superconductivity And Superfluidity, Computer Codes, Benchmarks, Heat Flux, 75 Condensed Matter Physics, Analytical Solution, Plasma Heating, Regenerators, Physical Properties, Thermodynamic Properties 320106* -- Energy Conservation, Irreversible Processes, And Utilization, 640410 -- Fluid Physics-- General Fluid Dynamics, High-Frequency Heating, Simulation
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