C O N T E N T S

which the dryer was designed. There are presented the results got and
the analysis of the factors which influence the design.
Key words: sawdust drying, dryer design.
HEATING AND COOLING SOLUTIONS OF NEW
RESIDENTIAL AND OFFICE BUILDING DISTRICTS IN
SUSTAINABLE DEVELOPMENT CONTEXT
by
SEVERIN CĂZĂNESCU1 and RALUCA ALEXANDRA
CĂZĂNESCU
Abstract. The paper present a case study analyzed for an area
of 50 hectares in Bucharest, where office and residential buildings
are intended to be built. There were studied classical solutions for
heating and cooling of the buildings in comparison with coupled
solutions combining boiler and cooling plants with solar systems
and trigeneration. The different solutions were analyzed both from
technical and economic point of view, taking into consideration the
site development and the necessary resources to be involved.
The proposed solution to be achieved is to produce electrical
and thermal energy in trigeneration plants coupled with
heating/cooling substations at building level and to use solar
energy in combination with classic boiler plants for the buildings
which are not connected to the trigeneration systems.
Key words: sustainable development, trigeneration, solar
energy, environmental protection.
AN INNOVATIVE SOLUTION FOR CLEAN TERRESTRIAL
PROPULSION: SMALL SCALE COMBINE CYCLE UNIT
PERFORMANCE EVALUATION
by
DAN-TEODOR BĂLĂNESCU and MARIO-VLAD HOMUTESCU