Analiza temperaturnega stanja na valju zračno hlajenega motorja = [Analysis of the temperature distribution in an air-cooled diesel engine] : disertacija
Trenc, Ferdinand
Da bi dosegli absolutno znižanje temperatur in zmanjšali neenakomerne porazdelitve temperatur v steni valja, smo v zgornjem delu valja oblikovali kanalček, skozi katerega teče olje za mazanje ...motorja. Tak način kombiniranega hlajenja dizelskega motorja omogoča znižanje najvišjih temperatur na valju za 30 K, nesimetričnost temperatur po obodu valja pa smo zmanjšali za 15 K. To smo dosegli s posebnim oblikovanjem, dimenzijami, lego in načinom obtekanja olja. Multikriterialni, linearni matematični model omogoča izvedbo numerične analize problema prestopa toplote v laminarnem toku kratkega, ukrivljenega kanalčka. Rezultati so bili preverjeni na eksperimentalnem modelu z rezultati v strokovni literaturi in odstopanja ne presegajo 20%. Izvirna sta način in izvedba hibridnega hlajenja motorja in matematični model, ki upošteva tudi učinek impulza curka olja na prestop toplote.
Type of material - dissertation
Publication and manufacture - Ljubljana : [F. Trenc], 1991
Dr TRENC F. Analiza IN: 00036179
Dr TRENC F. Analiza IN: 00036179
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