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Keywords: hydrogen
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Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2021, 143(4): 041002.
Paper No: GTP-20-1428
Published Online: February 9, 2021
...David Noble; David Wu; Benjamin Emerson; Scott Sheppard; Tim Lieuwen; Leonard Angello A confluence of technology development, policy support, and industry investment trends is accelerating the pace of Hydrogen (H 2 ) technology demonstrations, increasing the likelihood of power sector impacts...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2019, 141(7): 071007.
Paper No: GTP-18-1640
Published Online: February 5, 2019
...Jiabo Zhang; Anhao Zhong; Zhen Huang; Dong Han A theoretical analysis based on the second law of thermodynamics was conducted for the ammonia/hydrogen/air premixed flames at different initial pressures. The irreversibility causing exergy losses in premixed flames was divided into five parts, namely...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2014, 136(6): 061503.
Paper No: GTP-13-1236
Published Online: February 4, 2014
... hydrogen fuel momentum swirl stabilized burner flame stabilization To a large extent, the development of gas turbine combustors is driven by the reduction of the nitrogen oxide (NO x ) emissions in the entire load range. This requires the improvement of the fuel-air mixing in the burner at high...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2014, 136(2): 021501.
Paper No: GTP-12-1482
Published Online: October 25, 2013
.... The equation system and the method to solve it are described in Sec. 3. 4 . Different figures of merit for assessing the system efficiency are also commented. The different circulating mass flows are the hydrogen mass flow ( m · H ), the oxygen mass flow ( m · O...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. April 2012, 134(4): 041507.
Published Online: February 1, 2012
... to oscillations, flashback, or extinction, thereby limiting the potential range of lean combustion application. Recent interest in integrated gasification combined cycle plants and syngas combustion requires an improved understanding of the role of hydrogen on the combustion process. Therefore, in the present...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. April 2012, 134(4): 041502.
Published Online: January 25, 2012
... study, autoignition characteristics for hydrogen, diluted with up to 30 vol. % nitrogen, were investigated at conditions relevant to reheat combustor operation (p = 15 bar, T >1000 K, hot flue gas, relevant residence times). The experiments were performed in a generic, optically accessible reheat...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2012, 134(3): 031501.
Published Online: December 29, 2011
... zone makes LP type of combustors a candidate for upstream flame propagation (i.e., flashback) in the premixer that is typically not designed to sustain high temperatures. Moreover, there has been a recent demand for fuel-flexible gas turbines that can operate on hydrogen-enriched fuels like Syngas...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. December 2011, 133(12): 122802.
Published Online: August 29, 2011
...B. B. Sahoo; U. K. Saha; N. Sahoo Syngas, an environmentally friendly alternative gaseous fuel for internal combustion engine operation, mainly consists of carbon monoxide (CO) and hydrogen (H 2 ). It can substitute fossil diesel oil in a compression ignition diesel engine through dual fuel...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. July 2011, 133(7): 071501.
Published Online: March 16, 2011
... can lead to serious reliability problems in gas turbine engines caused by the different physical and chemical properties of these gases. A new innovative approach to reach efficient, safe, and low-emission operation for fuels such as natural gas, syntheses gas, and hydrogen with the same burner...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2011, 133(3): 031701.
Published Online: November 10, 2010
...Niall R. McGlashan; Peter R. N. Childs; Andrew L. Heyes A combined cycle gas-turbine generating power and hydrogen is proposed and evaluated. The cycle embodies chemical looping combustion (CLC) and uses a Na based oxygen carrier. In operation, a stoichiometric excess of liquid Na is injected...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. January 2011, 133(1): 011503.
Published Online: September 14, 2010
...Christian Eichler; Thomas Sattelmayer Premixed combustion of hydrogen-rich mixtures involves the risk of flame flashback through wall boundary layers. For laminar flow conditions, the flashback mechanism is well understood and is usually correlated by a critical velocity gradient at the wall...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. November 2010, 132(11): 111502.
Published Online: August 5, 2010
... were obtained of hydrogen/methane flames. Supporting calculations of extinction strain rates were also performed using detailed kinetics. It is shown that flames become unsteady (or local extinctions happen) at a nearly constant extinction strain rate for different hydrogen/methane mixtures. Based upon...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. April 2010, 132(4): 042804.
Published Online: January 27, 2010
...Dung Ngoc Nguyen; Hiroaki Ishida; Masahiro Shioji Gaseous fuels, such as hydrogen and natural gas, are utilized in internal combustion engines for spark-ignition operation. To improve thermal efficiency and to ensure control at good heat-release rates, combustion systems with direct-injection...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. November 2008, 130(6): 061502.
Published Online: August 22, 2008
..., “An Updated Comprehensive Kinetic Model of Hydrogen Combustion,” Int. J. Chem. Kinet., 36, pp. 566–575) ). Sensitivity of the measurements to uncertainties in boundary conditions, e.g., wall temperature and nozzle velocity profile (plug or potential), is investigated through detailed numerical simulations...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. May 2008, 130(3): 031401.
Published Online: March 28, 2008
... , H 2 S , and unpermeated H 2 . 10 05 2006 31 05 2007 28 03 2008 coal heat exchangers heat recovery hydrogen quenching (thermal) separation Concern about global climate change has prompted significant new research on low carbon energy systems. One...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. January 2008, 130(1): 011501.
Published Online: November 2, 2007
...Madhukar R. Mahishi; M. S. Sadrameli; Sanjay Vijayaraghavan; D. Y. Goswami Hydrogen yield of conventional biomass gasification is limited by chemical equilibrium constraints. A novel technique that has the potential to enhance the hydrogen yield by integrating the gasification and absorption...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. July 2007, 129(3): 688–694.
Published Online: December 26, 2006
.... In addition, the blowoff phenomenology qualitatively changes with hydrogen levels in the fuel, being very different for mixtures with H 2 levels above and below about 50%. It is shown that standard well stirred reactor based correlations, based upon a Damköhler number with a diffusivity ratio correction, can...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. April 2007, 129(2): 572–578.
Published Online: March 19, 2006
...M. Masood; S. N. Mehdi; P. Ram Reddy An experimental investigation was carried out on a computer interfaced single cylinder variable compression ratio, compression ignition engine to optimize the performance characteristics and to find the useful higher compression ratio (UHCR) with hydrogen-diesel...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. January 2006, 128(1): 203–212.
Published Online: November 22, 2005
...Y. Y. Kim; Jong T. Lee; J. A. Caton To achieve high power and high efficiency in a hydrogen-fueled engine for all load conditions, the dual-injection hydrogen-fueled engine, which can derive the advantages of both high efficiency from external mixture hydrogen engine and high power from direct...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. October 2006, 128(4): 879–888.
Published Online: November 3, 2005
... and damper contact locations, and exposure to high-pressure hydrogen. The blades are also subjected to extreme variations in temperature during start-up and shutdown transients. The most prevalent high-cycle fatigue (HCF) failure modes observed in these blades during operation include crystallographic crack...