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dimethyl ether (DME) 2

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How to make the production of methanol/DME “GREENER”—Integration of wind power with

Weidou NI , Zhen CHEN , Zheng LI , Jian GAO ,

Frontiers in Energy 2009, Volume 3, Issue 1, Pages 94-98 doi: 10.1007/s11708-009-0012-2

Abstract: Coal-based methanol/DME is the key element of this industry.A new integrated system which combines coal-based methanol/DME production with wind power is proposedIn comparison with conventional coal-based methanol/DME system, the proposed system omits the expensive

Keywords： wind power off-grid coal-based methanol/DME electrolyze water

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Artificial versus Natural Reuse of CO₂ for DME Production: Are We Any Closer?

Martín Mariano

Engineering 2017, Volume 3, Issue 2, Pages 166-170 doi: 10.1016/J.ENG.2017.02.002

Abstract: > in the form of lignocellulosic biomass toward the production of the same product, dimethyl ether (DMEsuperstructure optimization approach in order to select technologies that transform lignocellulosic biomass into DMEusing reforming, scrubbing, and carbon capture technologies before it can be used to directly produce DMEAlternatively, CO₂ can be captured and used to produce DME via hydrogenation.

Keywords： Solar energy Photovoltaic Concentrated solar power Biomass Water electrolysis Dimethyl ether

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Exergy losses in premixed flames of dimethyl ether and hydrogen blends

Tongbin ZHAO, Jiabo ZHANG, Dehao JU, Zhen HUANG, Dong HAN

Frontiers in Energy 2019, Volume 13, Issue 4, Pages 658-666 doi: 10.1007/s11708-019-0645-8

Abstract: A second-law thermodynamic analysis was conducted for stoichiometric premixed dimethyl ether (DME)/hydrogenThe overall exergy losses in the DME/H flames decrease by about 5% with increased H substitution from

Keywords： second law analysis flame dimethyl ether (DME) hydrogen binary fuels

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Numerical study of EGR effects on reducing the pressure rise rate of HCCI engine combustion

Gen CHEN, Norimasa IIDA, Zuohua HUANG,

Frontiers in Energy 2010, Volume 4, Issue 3, Pages 376-385 doi: 10.1007/s11708-010-0118-6

Abstract: The effects of the inert components of exhaust gas recirculation (EGR) gas on reducing the pressure rise rate of homogeneous charge compression ignition engine combustion were investigated numerically by utilizing the CHEMKIN II package and its SENKIN code, as well as Curran’s dimethyl ether reaction scheme. Calculations were conducted under constant volume combustion and engine combustion (one compression and one expansion only, respectively) conditions. Results show that with constant fuel amount and initial temperature and pressure, as EGR ratio increases, combustion timings are retarded and the duration of thermal ignition preparation extends non-linearly; peak values of pressure, pressure rising rate (PRR), and temperature decrease; and peak values of heat release rate in both low temperature heat release (LTHR) and high temperature heat release decrease. Moreover, maximum PRR decreases as CA50 is retarded. With constant fuel amount, mixtures with different EGR ratios can obtain the same CA50 by adjusting the initial temperature. Under the same CA50, as EGR ratio increases, the LTHR timing is advanced and the duration of thermal ignition preparation is extended. Maximum PRR is almost constant with the fixed CA50 despite the change in EGR ratio, indicating that the influence of EGR dilution on chemical reaction rate is offset by other factors. Further investigation on the mechanism of this phenomenon is needed.

Keywords： HCCI engine combustion EGR DME CA50 PRR

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Dimethyl ether as alternative fuel for CI engine and vehicle

Zhen HUANG , Xinqi QIAO , Wugao ZHANG , Junhua WU , Junjun ZHANG ,

Frontiers in Energy 2009, Volume 3, Issue 1, Pages 99-108 doi: 10.1007/s11708-009-0013-1

Abstract: On the basis of researches on DME engine and vehicle at Shanghai Jiaotong University in the last twelveyears, fuel injection, combustion, performance and exhaust emissions of DME engine and DME vehicle areThe results indicate that DME engines can achieve high thermal efficiency and ultra low emissions, and

Keywords： dimethyl ether (DME) fuel injection combustion process emission control CI engine vehicle