Internally regenerative engine cycle analysis - A parametric study
Abstract
The Air Standard analysis for the internal regenerative Otto and Diesel cycles occurring within a single piston-cylinder geometry was investigated analytically. The use of a constant temperature internal regenerative reservoir permits the absorption of heat from the hot gases and rejection to the cooler charge later in the cycle. A dimensionless analysis to obtain performance predictions for these cycles shows that with regeneration the Otto and Diesel cycles for equal compression ratios can exceed the performance of the corresponding basic cycles. It is also shown that, in certain cases, thermal efficiency and net work output can exceed the basic cycle and that external heat addition may be less than the basic cycle. Performance curves are provided for Otto and Diesel cycle regeneration with fixed Tmax and variable compression ratio.
- Publication:
-
American Society of Mechanical Engineers
- Pub Date:
- November 1983
- Bibcode:
- 1983asme.meetQ....K
- Keywords:
-
- Diesel Engines;
- Otto Cycle;
- Piston Engines;
- Regeneration (Engineering);
- Thermodynamic Efficiency;
- Compression Ratio;
- Heat Transfer;
- Parameterization;
- Power Efficiency;
- Regenerative Cooling;
- Thermodynamics and Statistical Physics