Next Article in Journal
Impact of Oceanographic Environmental Shifts and Atmospheric Events on the Sustainable Development of Coastal Aquaculture: A Case Study of Kelp and Scallops in Southern Hokkaido, Japan
Previous Article in Journal
Solar Photovoltaic Development in Australia—A Life Cycle Sustainability Assessment Study
Article Menu

Export Article

Open AccessArticle
Sustainability 2015, 7(2), 1248-1262; doi:10.3390/su7021248

Thermodynamic Analyses of Biomass Gasification Integrated Externally Fired, Post-Firing and Dual-Fuel Combined Cycles

1
Faculty of Mechanical Engineering, University of Tabriz, Tabriz 51664, Iran
2
Department of Mechanical Engineering, University of Ataturk, Erzurum 25240, Turkey
3
Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, 2000 Simcoe Street North, Oshawa, ON L1H 7K4, Canada
4
Institute for Energy Engineering, Technische Universität Berlin, Marchstr 18, Berlin 10587, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Francesco Asdrubali
Received: 3 December 2014 / Accepted: 19 January 2015 / Published: 26 January 2015
(This article belongs to the Section Energy Sustainability)
View Full-Text   |   Download PDF [1336 KB, uploaded 24 February 2015]   |  

Abstract

In the present work, the results are reported of the energy and exergy analyses of three biomass-related processes for electricity generation: the biomass gasification integrated externally fired combined cycle, the biomass gasification integrated dual-fuel combined cycle, and the biomass gasification integrated post-firing combined cycle. The energy efficiency for the biomass gasification integrated post-firing combined cycle is 3% to 6% points higher than for the other cycles. Although the efficiency of the externally fired biomass combined cycle is the lowest, it has an advantage in that it only uses biomass. The energy and exergy efficiencies are maximized for the three configurations at particular values of compressor pressure ratios, and increase with gas turbine inlet temperature. As pressure ratio increases, the mass of air per mass of steam decreases for the biomass gasification integrated post-firing combined cycle, but the pressure ratio has little influence on the ratio of mass of air per mass of steam for the other cycles. The gas turbine exergy efficiency is the highest for the three configurations. The combustion chamber for the dual-fuel cycle exhibits the highest exergy efficiency and that for the post-firing cycle the lowest. Another benefit of the biomass gasification integrated externally fired combined cycle is that it exhibits the highest air preheater and heat recovery steam generator exergy efficiencies. View Full-Text
Keywords: energy; exergy; gasification; combined cycle; biomass energy; exergy; gasification; combined cycle; biomass
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Soltani, S.; Athari, H.; Rosen, M.A.; Mahmoudi, S.M.S.; Morosuk, T. Thermodynamic Analyses of Biomass Gasification Integrated Externally Fired, Post-Firing and Dual-Fuel Combined Cycles. Sustainability 2015, 7, 1248-1262.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sustainability EISSN 2071-1050 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top