Analysis of cycle-to-cycle variation and non-uniformity of energy production: Tests on individual cylinders of a radial piston engine
Artykuł w czasopiśmie
| Status: | |
| Autorzy: | Czarnigowski Jacek |
| Rok wydania: | 2011 |
| Wersja dokumentu: | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | 10 |
| Wolumen/Tom: | 31 |
| Strony: | 1816 - 1824 |
| Impact Factor: | 2,064 |
| Web of Science® Times Cited: | 8 |
| Scopus® Cytowania: | 9 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| The paper presents results of identification tests on radial piston engine non-uniformity and non-repeatability of energy production. The tests are a part of the ASz-62IR engine modernization project aimed at extending the engine's service life and decreasing fuel consumption. This is to be achieved by substituting a carburetor with an electronic injection control system. The tests consisted in measurements of in-cylinder pressure in each cylinder and were conducted under differing operating conditions. The paper focuses on the analysis of the indicated mean effective pressure (IMEP) as a parameter describing the amount of energy produced by the cylinders. IMEP mean values indicate significant differences in the amount of energy produced by individual cylinders. A further difference can be observed in the cycle-to-cycle variation of individual cylinders; it consists not only in the non-uniform standard deviation of IMEP, but also in the non-uniformity of IMEP, represented by the forgetting factor. The range of cylinder-to-cylinder variations has been evaluated and attributed to the non-uniform supply with the air-fuel mixture - a result of using a carburetor and an ignition system with fixed settings. |
