C O N T E N T S

Abstract. The Gas-Steam Combined Cycle Units are the actual
leader in the domain of high and medium power generation systems. As
long the heavy ships propulsion systems have powers in this range, the
use of the Combined Cycle Units for naval propulsion was not only
possible but completely successful. This justify the study of the
possibilities to develop Small Scale Combined Cycle Units, properly
even for the propulsion of the heavy lorries. In the present paper, the
results of a study regarding the performances of a Small Scale Combined
Cycle Units are presented. The configuration of this unit can be a
properly one for the propulsion system of the heavy lorries.
Key words: combined cycle, small scale, terrestrial propulsion,
Heller condenser system, high efficiency.
ESTIMATION DU FACTEUR DE DETERIORATION DES
EMISSIONS POLLUANTES POUR LE PARC D’AUTOMOBILES,
EN FONCTION DE L’AGE ET DU NOMBRE DE KILOMETRES
PARCOURUS (KILOMETRAGE)
par
KRISZTINA UZUNEANU 1 , DAN DRĂGHIA 1 et EUGEN
GOLGOŢIU 2
Abstract. The emission factor is defined in this section as a factor
which, multiplied with the amount of pollutants emitted by a new engine,
allows the estimate with reasonable accuracy of the amount of pollutants
(CO, HC, NOx) emitted by the engine after a certain number of years and
a certain mileage. The deterioration factor of the emissions has been
determined by using a rich database of pollutant emissions from certain
engines grouped based on their displacement and degree of treatment of
exhaust gases in accordance with European standards (Euro I ..EuroV)
Key words: automobile pollution, emission deterioration, factor for
automobile pollution.
DÉTERMINATION DE LA CONDUCTIVITÉ THERMIQUE
DANS LES MATÉRIAUX DE CONSTRUCTION
par
MONICA CHERECHEŞ, CĂTĂLIN POPOVICI
et NELU-CRISTIAN CHERECHEŞ
Abstract. Using an unsteady heat transfer method, the
thermophysical properties of the three building materials were