0

Full Content is available to subscribers

Subscribe/Learn More  >

Steady-State Off-Design Thermodynamic Performance Analysis of a Humid Air Turbine Based on a Micro Turbine

[+] Author Affiliations
Shijie Zhang, Yunhan Xiao

Chinese Academy of Sciences, Beijing, China

Paper No. GT2006-90335, pp. 287-296; 10 pages
doi:10.1115/GT2006-90335
From:
  • ASME Turbo Expo 2006: Power for Land, Sea, and Air
  • Volume 5: Marine; Microturbines and Small Turbomachinery; Oil and Gas Applications; Structures and Dynamics, Parts A and B
  • Barcelona, Spain, May 8–11, 2006
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4240-1 | eISBN: 0-7918-3774-2
  • Copyright © 2006 by ASME

abstract

This paper presents a steady-state on-design and off-design thermodynamic performance investigation of a Humid Air Turbine (HAT) cycle and other competitive gas turbine cycles based on a simple cycle micro turbine. First of all, several stand-alone softwares and programs were integrated to achieve the computational capability of mass and energy balancing and optimization at on-design and off-design conditions. Later on, this paper shows the simulated on-design performance of a micro turbine in three different modified configurations: 1) recuperated cycle, 2) Recuperated Water Injected (RWI) cycle and 3) HAT cycle. The micro turbine is a 90.10 kW single-shaft simple cycle gas turbine with the electrical efficiency of 12.8%. After transformation, the electrical efficiencies of the recuperated, the RWI and the HAT cycle are 26.21%, 29.26% and 29.92%, respectively; the power outputs are 82.52 kW, 106.22 kW and 109.92 kW, respectively. Finally, the effects of load reduction (part-load at ISO conditions) and ambient temperature on the thermodynamic off-design performance of the simple, the recuperated, the RWI and the HAT cycle were investigated and compared. Simulation results indicate that the HAT cycle and the RWI cycle have similar off-design performance. In addition, the two evaporative cycles have more favorable off-design performance compared with the other two cycles with waste heat utilization of converting to power. It is concluded that the adjustment of the water vapor added to the compressed air has beneficial effect on the stability of the off-design performance. However, because of the absence of intercooler, as well as the limited amount of available waste exergy inside the micro gas turbine cycle, the advantages of the on-design and off-design performance of the transformed HAT cycle on the other competitive cycles are not completely displayed.

Copyright © 2006 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

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 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