Abstract

Aviation sector has been growing at an annual rate of  2-3% a year. Even with significant improvement in fuel efficiency and emissions  over the same period, there is a need to adopt new strategies to reduce GHG and  other emissions. Alternative fuels is one such strategy that can lead to lower  GHG emissions and at the same time provide another source of fuel beside the  petroleum based jet fuel. Beside reducing GHG emissions, alternative fuels might  also reduce particulate matter (PM) emissions. In  recent times questions regarding impact of PM emissions generated by  aviation on local air quality and global climate have been raised. Due to health and climate impact, ICAO and regulators have all agreed to  introduce new regulations on PM emissions from aircraft.  Significant activities  in aviation sector include ASTM efforts to rationalize acceptance of aviation biojet fuels and international efforts on biofuel application to aviation

This presentation will focus on the progress made by  the aviation sector in the use of alternative fuels in aircraft and in the area  of particle emissions, which can attribute to local air quality and global  climate. Advancements made at  P&W in these areas will also be highlighted. Results from tests conducted at  P&W will be discussed.

Biographies

Dr. John Hu employed LDV to investigate complex flow field inside a P&WC sector combustor for his Ph.D. thesis. He established 3D CFD as analytical and design tool for combustion systems at P&WC, and developed semi-empirical technique to reduce smoke emissions in turbofan, turboprop, turboshaft and APU engines. He has achieved engine combustor designs using 3D CFD without any rig test for PW150A and PT6C-67 in mid-1990s. He manages combustion research projects since 1999. From 2002, Dr. John Hu manages all combustion aerodynamics analysis and validation tasks in the Combustion Module Centre. His present interests are in the reduction and modeling of gaseous emissions and particulate matters, application of biofuels for aviation, and optimization of combustor design methodology.

Dr. Anuj Bhargava is a Principal Engineer at Pratt & Whitney and is involved in the development of advanced combustors and augmentors. He serves on the SAE E-31 committee and CAEP/WG3, providing important industry inputs to these committees working on establishing aircraft emission standards and regulations. He is an active participant at NASA led particle emission measurement  and alternative fuels campaigns and also serves as an industry representative at FAA led Aircraft Emission Characterization group. Dr. Bhargava has published several journal and conference papers. He serves as a panel member on committees in Transportation Research Board and National Science Foundation. He also serves as a corporate board member on FAA led PARTNER (Partnership for AiR Transportation Noise and Emissions Reduction). Dr. Bhargava has organized aviation emission sessions at several international conferences. He was invited to give a lecture on aviation PM emissions  and alternative fuels use in aviation at AIAA conference in 2009. For the past couple of years Dr. Bhargava has led several test campaigns for measuring emission and performance of alternative fuels on aircraft engines. He also represents Aviation industry on ICAO alternative fuels committee.  Dr. Bhargava has  BS in Chemical Engineering from Indian Institute of Technology, Delhi India (1992); PhD in Chemical Engineering from University of Massachusetts Amherst (1997) and an MBA from Carnegie Mellon University (2010).

Sam Sampath is manager of combustion and emission disciplines at Pratt & Whitney Canada and also a Senior Fellow at Pratt & Whitney.  His educational background includes B. Eng. in Mechanical Engineering, M. Eng. in Power Engineering and Ph.D. in Combustion.  He also is a M.B.A. graduate from McGill University.  He has been working at Pratt & Whitney Canada for over 35 years, has managed Combustion and Turbine disciplines and has over 30 publications and 12 international patents.  Sam is also a member of ASME, ICCAIA, and is an advisor to Transport Canada on ICAO emission matters