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TECHNICAL PAPERS: Heat and Mass Transfer

Evaporation-Combustion Affected by In-Cylinder, Reciprocating Porous Regenerator

[+] Author and Article Information
Chan-Woo Park, Massoud Kaviany

Department of Mechanical Engineering, The University of Michigan, Ann Arbor, MI 48109-2125

J. Heat Transfer 124(1), 184-194 (May 20, 2001) (11 pages) doi:10.1115/1.1418368 History: Received May 02, 2000; Revised May 20, 2001
Copyright © 2002 by ASME
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References

Figures

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Sequence of motion of the regenerator and piston and physical rendering of fuel injection and air blowing during the regenerative heating stroke
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Geometric parameters and variables of the regenerative Diesel engine
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Thermodynamic limit and predicted (p−V)f diagram from the start of cycle θ=0 deg to the end θ=720 deg, for the conventional and regenerative engines
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Variation of mass flow rates during the intake and exhaust strokes, and the mass flow rate through the insert during the compression and expansion strokes, during a cycle
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Variations of dimensionless mass, volume, temperature (top and bottom gas zones), and pressure in top gas zone, during a cycle
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Variations of the gas and solid temperatures during a cycle
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Variation of the energy conversions (a) and heat transfer rates (b) and (c), during a cycle
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(a) Penetration and surface impingement of fuel spray, and (b) the trajectories of the fuel droplets and the front location for plug gas flow in top gas zone
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The fuel droplet particle density of the first, impinging fuel droplet parcel and last parcel, and the temperature distribution within the regenerator insert
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Variations of gas temperatures in the regenerative and the conventional engines, during a cycle
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Effect of the regenerative heating and cooling stroke periods on the thermal efficiency
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Effect of compression ratio on the thermal efficiency of the regenerative and conventional engines

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