|Tipo di tesi
|Tesi di laurea magistrale
|DAGOSTINO, ANDREA FILIPPO
|PROGETTAZIONE E VALIDAZIONE DI UN MODELLO PARAMETRICO DI RAFFREDDAMENTO EVAPORATIVO A VALLE DELL’INTERCOOLER
|Titolo in inglese
|DESIGN AND VALIDATION OF A PARAMETRIC MODEL OF THE EVAPORATIVE COOLING DOWNSTREAM OF THE INTERCOOLER
|Dipartimento di Ingegneria "Enzo Ferrari"
|Corso di studi
|Ingegneria Del Veicolo (D.M.270/04)
|Data inizio appello
|Accessibile via web (tutti i file della tesi sono accessibili)
il lavoro di tesi riguarda la progettazione di un circuito di raffreddamento della carica fresca in aspirazione di un motore a combustione interna sovralimentato ad alte prestazioni. Dopo una attenta analisi per la scelta progettuale, il modello è stato basato sull'idea di raffreddare la carica mediante una umidificazione adiabatica tramite pannello evaporativo idrofilo in cellulosa.
the thesis work concerns the design of a fresh charge cooling circuit on the intake of a high performance supercharged internal combustion engine. After a careful analysis for the design choice, the model was based on the idea of cooling the charge through adiabatic humidification through a hydrophilic cellulose evaporative panel. The theoretical model was created with Excel by setting the mechanical and thermodynamic input data and subsequently setting the balance equations that govern the thermodynamic transformations. In the theoretical model it was also necessary to enter the data relating to the sizing of the components relating to the water circuit, i.e. sprinkler, pump, and watertight tank for collecting excess water. It is a parametric model, therefore by changing the input data it is possible to obtain an adequate system with its relative temperature reduction output value. The thesis continued in the laboratory with the experimental test on the flushing bench, where the mock-up made useful for validating the theoretical model was assembled in series. We were interested in the realization of the divergent-converging duct inside which the humidifying filter is inserted, in the positioning of the pressure, temperature and humidity sensors, useful for data verification. The tests were initially carried out at ambient temperature and then at higher ones in order to verify the increased efficiency of the humidification achieved. The final goal was to obtain a model that would allow to reduce the temperature of the fresh charge on the intake in such a way as to reach the maximum temperature in saturation conditions.