0
TECHNICAL PAPERS

Effects of Several Major Irreversibilities on the Thermodynamic Performance of a Regenerative MHD Power Cycle

[+] Author and Article Information
Jincan Chen1

 Department of Physics, Xiamen University, Xiamen 361005, People’s Republic of Chinajcchen@xmu.edu.cn

S. K. Tyagi

 Department of Physics, Xiamen University, Xiamen 361005, People’s Republic of Chinasudhirtyagi@yahoo.com

S. C. Kaushik, V. Tiwari

 Centre for Energy Studies, Indian Institute of Technology, Delhi, New Delhi 110016, India

Chih Wu

 Mechanical Engineering Department, U. S. Naval Academy, Annapolis, MD 21402

1

Corresponding author. jcchen@xmu.edu.cn, sudhirtyagi@yahoo.com

J. Energy Resour. Technol 127(2), 103-118 (Jan 13, 2005) (16 pages) doi:10.1115/1.1879046 History: Received August 30, 2003; Revised January 13, 2005

This communication presents the thermodynamic analysis along with a detailed parametric study of an irreversible regenerative MHD power cycle. The power output is adopted as the objective function and optimized with respect to the cycle temperature ratio for a typical set of operating parameters. The power output is found to be an increasing function of the effectiveness and the heat capacitance rates on the hot- and cold-side reservoirs, the regenerative effectiveness, and the compressor and generator efficiencies, while it is found to be a decreasing function of the working fluid heat capacitance rates and the Mach number. The effects of the cold-side effectiveness and heat capacitance rate are found to be more than those of the other side effectiveness and heat capacitance rates on the performance of the cycle. The effect of the compressor efficiency is found to be more than that of the generator efficiency on the power output while it is reverse in the case of thermal efficiency. It is also found that there is an optimum relation among the various heat capacitance rates at which the cycle attains the maximum performance.

FIGURES IN THIS ARTICLE
<>
Copyright © 2005 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

(a) Schematic and (b) T-S diagrams of a closed cycle nuclear reactor based irreversible regenerative MHD power plant

Grahic Jump Location
Figure 2

The variation of (a) power output and (b) thermal efficiency with respect to the temperature ratio for different values of source-side effectiveness (at constant velocity)

Grahic Jump Location
Figure 3

The variation of (a) power output and (b) thermal efficiency with respect to the temperature ratio for different values of sink-side effectiveness (at constant velocity)

Grahic Jump Location
Figure 4

The variation of (a) power output and (b) thermal efficiency with respect to the temperature ratio for different values of regenerative-side effectiveness (at constant velocity)

Grahic Jump Location
Figure 5

The variation of (a) power output and (b) thermal efficiency with respect to the temperature ratio for different values of source-side heat capacitance rates (at constant velocity)

Grahic Jump Location
Figure 6

The variation of (a) power output and (b) thermal efficiency with respect to the temperature ratio for different values of sink-side heat capacitance rates (at constant velocity)

Grahic Jump Location
Figure 7

The variation of (a) power output and (b) thermal efficiency with respect to the temperature ratio for different values of the working fluid heat capacitance rates (at constant velocity)

Grahic Jump Location
Figure 8

The variation of (a) power output and (b) thermal efficiency with respect to the temperature ratio for different values of compressor efficiency (at constant velocity)

Grahic Jump Location
Figure 9

The variation of (a) power output and (b) thermal efficiency with respect to the temperature ratio for different values of generator efficiency (at constant velocity)

Grahic Jump Location
Figure 10

The variation of (a) power output and (b) thermal efficiency with respect to the temperature ratio for different values of Mach number (at constant Mach number)

Grahic Jump Location
Figure 11

The variation of power output with respect to thermal efficiency (a) at constant velocity and (b) at constant Mach number

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In