C O N T E N T S

Also, the surrounding temperature decreases due to the heat absorption.
The experimental tests show that by the liquid preheating, the
enhancement of the evaporation process occurs. The proposed system is
a clean one, and may be use in the fire extinguish equipment.
Key words: droplet evaporation, mist jet dispersion, fire
extinguish, jet thermal cone.
WATER OXYGENATION
by
NICOLAE BĂRAN, GHEORGHE BĂRAN, GABRIELA
MATEESCU and ALEXANDRU SORIN PĂTULEA
Abstract. In this paper the authors present a new type of fine
bubbles generator whose dispersion element of the air into the water
mass is a metallic board of rectangular shape in which a number of holes
is practiced. The holes were positioned in xoy coordinates and
manufactured by electro-erosion. The fine bubbles generator was
introduced in a water basin and included in the structure of an
experimental stand; the results obtained from the experimental researches
performed are exposed.
Key words: fine bubbles generator, water aeration, electro-erosion
processing.
COMPARATIVE ENERGY AND EXERGY ANALYSIS OF THE
ABSORPTION, RESORPTION AND COMPLEX ABSORPTION-
RESORPTION SYSTEMS
by
ELENA EUGENIA VASILESCU, GHEORGHE POPESCU, CLAUDIA
IONIŢĂ, VALENTIN APOSTOL and HORAŢIU POP
Abstract. The paper deals with the energy and exergy analysis of
the absorption, resorption and complex absorption-resorption
thermodynamic cycles with ammonia-water as working fluid. A
comparison between the analyzed cycles (working as refrigeration or
heat pump systems) provides information about the opportunity to
choose the most adequate schema as a function of the imposed design
parameters.