Direct injection internal combustion engine with high-pressure thermochemical recuperation – Experimental study of the first prototype

A. Poran, A. Thawko, A. Eyal, L. Tartakovsky

Research output: Contribution to journalArticlepeer-review

Abstract

The paper describes, for the first time, experimental study results of a novel direct-injection (DI) internal combustion engine (ICE) with high-pressure thermochemical recuperation (HP-TCR) fed by methanol as a primary fuel. The reported system is the first ever working prototype of ICE with HP-TCR. A detailed description of the developed novel technology, physical and chemical processes in the system is presented. HP-TCR system performance is discussed and compared to the previously published study results of the same engine fed with artificially prepared reformate from compressed gas cylinder. HP-TCR demonstrates a significant improvement over the gasoline reference case with 19%–30% relative increase in indicated efficiency and reduction in NOx, CO, HC and CO2 emissions by up to 97, 91, 96 and 15%, respectively. The system performance shows a good prospect to continue the research towards an automotive-scale system development. Further performance improvement options are discussed as well.

Original languageEnglish
Pages (from-to)11969-11980
Number of pages12
JournalInternational Journal of Hydrogen Energy
Volume43
Issue number27
DOIs
StatePublished - 5 Jul 2018

Keywords

  • Gas direct injection
  • Hydrogen
  • Internal combustion engine
  • Methanol steam reforming
  • Thermochemical recuperation
  • Waste heat recovery

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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