Fuel-Rich HCCI Engines as Chemical Reactors for Polygeneration: A Modeling and Experimental Study on Product Species and Thermodynamics
| Autor: | M. Werler, Ulrich Maas, Robert Hegner, Burak Atakan, Robert Schiessl |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
020209 energy
General Chemical Engineering Homogeneous charge compression ignition Energy Engineering and Power Technology Thermodynamics 02 engineering and technology Chemical reactor Mole fraction Methane law.invention Ignition system chemistry.chemical_compound Fuel Technology Maschinenbau chemistry law Compression ratio 0202 electrical engineering electronic engineering information engineering Dimethyl ether Syngas |
| Zdroj: | Energy & Fuels. 31:14079-14088 |
| ISSN: | 1520-5029 0887-0624 |
| Popis: | The usage of a methane-fueled homogeneously charged compression ignition (HCCI) engine process for producing base chemicals like ethylene and synthesis gas together with some work output is investigated. This polygeneration process is studied by numerical modeling, accompanied by rapid compression machine experiments. Studies include the seeding of dimethyl ether (DME) as a reaction enhancer which allows methane conversion already at moderate, technically easily accessible compression ratios and precompression temperatures. The concept is promising for equivalence ratios above 2, predicting product gas mole fractions of up to 25 mol % H2, 20 mol % CO, and 2 mol % C2H4. These simulation results are largely consistent with the outcome of rapid compression machine (RCM) experiments, in which production of up to 20 mol % H2, 16 mol % CO, and 1 mol % C2H4 was detected. In addition to studying the product composition, thermodynamic aspects of the approach were investigated by comparing the exergetic efficiency ... |
| Databáze: | OpenAIRE |
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