Performance and pollutant emission of the reforming-controlled compression ignition engine – Experimental study

Eyal, Amnon; Thawko, Andy; Baibikov, Vladimir; Tartakovsky, Leonid

doi:10.1016/j.enconman.2021.114126

Cited by 24 publications

(2 citation statements)

References 33 publications

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“…Auto-ignition (AI) study is crucial for modern CI-based propulsion (e.g., Homogeneous-Charge-CI (HCCI) [7], Reactivity-Controlled-CI (RCCI) engines [8], etc.). The current work extends our former numerical study [9] on the multistage (i.e., two-/three-stage) heat release of lean-to-rich AI of PODE1/air mixtures.…”

Section: Introductionmentioning

confidence: 99%

Insights into Multi-Stage Heat Release Phenomenon of Polyoxymethylene Dimethyl Ether 1 (PODE₁)

Buntin¹,

Tartakovsky²

2023

World Congress on Momentum, Heat and Mass Transfer

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Transition to sustainable energy origins, carbon-neutral energy carriers and leaner-burning combustion concepts is strongly discussed for its prospective role in greener and secure energy future. Polyoxymethylene dimethyl ethers (PODEn), well-suited for compression-ignition combustion modes, are considered as potential carbon-neutral candidates. To elucidate their potential, a detailed knowledge of lean PODEn combustion characteristics, as well as underlying chemical kinetics, is necessary. In this paper, numerical insights into multi-stage heat release peculiarities of PODE1/oxidizer propellant pertinent to lean spontaneous auto-ignition, are presented and compared to n-heptane. Macro-dynamics of three-stage heat release (3SHR) phenomenon, earlier revealed by the authors to predominantly occur at low-to-intermediate initial temperatures (below 900 K) at ultra-lean conditions (equivalence ratios (φ) below 0.5), is discussed. For this task, initial-state sensitivity analysis of the heat release rate (HRR) characteristic parameters (e.g., peak amplitudes, proximities), was conducted. Detailed PODE1 kinetic mechanisms, formerly identified as the most accurate for lean PODE1 autoignition, were utilized for constant-volume adiabatic reactor simulations at initial temperatures of 600-900 K, pressures of 10-40 bar, and φ = 0.1-0.5. Results revealed distinct perturbing effects of initial-state parameters on 3SHR macro-dynamics, sensed through raw and logarithmic derivative profiles of peak proximities and amplitudes. PODE1 and n-heptane showed several contrary results attributed to dissimilarities in negative temperature coefficient (NTC) behavior.

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Section: Introductionmentioning

confidence: 99%

Insights into Multi-Stage Heat Release Phenomenon of Polyoxymethylene Dimethyl Ether 1 (PODE₁)

Buntin¹,

Tartakovsky²

2023

World Congress on Momentum, Heat and Mass Transfer

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“…Recently, Eyal et al [192] explored an innovative concept integrating the advantages of High-Pressure Thermochemical Recuperation and the LTC mode. This combination facilitates mitigating pollutant emissions and achieving high thermal efficiency in a wide range.…”

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confidence: 99%

Improving Thermal Efficiency of Internal Combustion Engines: Recent Progress and Remaining Challenges

2022

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Improving thermal efficiency and reducing carbon emissions are the permanent themes for internal combustion (IC) engines. In the past decades, various advanced strategies have been proposed to achieve higher efficiency and cleaner combustion with the increasingly stringent fuel economy and emission regulations. This article reviews the recent progress in the improvement of thermal efficiency of IC engines and provides a comprehensive summary of the latest research on thermal efficiency from aspects of thermodynamic cycles, gas exchange systems, advanced combustion strategies, and thermal and energy management. Meanwhile, the remaining challenges in different modules are also discussed. It shows that with the development of advanced technologies, it is highly positive to achieve 55% and even over 60% in effective thermal efficiency for IC engines. However, different technologies such as hybrid thermal cycles, variable intake systems, extreme condition combustion (manifesting low temperature, high pressure, and lean burning), and effective thermal and energy management are suggested to be closely integrated into the whole powertrains with highly developed electrification and intelligence.

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Hydrogen Compression Ignition Engines

Dimitriou

2023

Green Energy and Technology

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Performance and pollutant emission of the reforming-controlled compression ignition engine – Experimental study

Cited by 24 publications

References 33 publications

Insights into Multi-Stage Heat Release Phenomenon of Polyoxymethylene Dimethyl Ether 1 (PODE₁)

Insights into Multi-Stage Heat Release Phenomenon of Polyoxymethylene Dimethyl Ether 1 (PODE₁)

Improving Thermal Efficiency of Internal Combustion Engines: Recent Progress and Remaining Challenges

Hydrogen Compression Ignition Engines

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Performance and pollutant emission of the reforming-controlled compression ignition engine – Experimental study

Cited by 24 publications

References 33 publications

Insights into Multi-Stage Heat Release Phenomenon of Polyoxymethylene Dimethyl Ether 1 (PODE1)

Insights into Multi-Stage Heat Release Phenomenon of Polyoxymethylene Dimethyl Ether 1 (PODE1)

Improving Thermal Efficiency of Internal Combustion Engines: Recent Progress and Remaining Challenges

Hydrogen Compression Ignition Engines

Contact Info

Product

Resources

About

Insights into Multi-Stage Heat Release Phenomenon of Polyoxymethylene Dimethyl Ether 1 (PODE₁)

Insights into Multi-Stage Heat Release Phenomenon of Polyoxymethylene Dimethyl Ether 1 (PODE₁)