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Cioica N.,INMA Bucharest Cluj Napoca Branch | Fechete R.,Technical University of Cluj Napoca | Cozar O.,INMA Bucharest Cluj Napoca Branch | Cota C.,INMA Bucharest Cluj Napoca Branch
INMATEH - Agricultural Engineering | Year: 2012

Obtaining by thermoplastic extrusion of starch -based biodegradable packaging requires the use of some plasticizers in the formula. Mixing starch with these plasticizers leads to structural and dynamic changes of it. To highlight these changes when using water and glycerol as plasticizers for the cornstarch were performed NMR relaxation measurements. Experimental data were analyzed using inverse Laplace transform. Source


Nagy E.M.,INMA Bucharest Cluj Napoca Branch | Cota C.,INMA Bucharest Cluj Napoca Branch | Cioica N.,INMA Bucharest Cluj Napoca Branch
INMATEH - Agricultural Engineering | Year: 2012

In our country, at present, about 90% of the rural population uses the solid biomass as a source of heat. In Romania, biomass represents an important source of energy not only in rural but also in urban areas. Under these circumstances it is important to know the potential of biomass, both theoretical and real, not only at national level, but also divided by region or even in certain clearly defined areas. This paper brings in a general method for evaluate the energy potential of solid biomass at national level. The proposed method is based on systemic analysis on the one hand, and on the other hand, is based on utilization of statistics available at national level, and it can be applied to determine the energy potential of biomass coming from only a certain vegetal or wooden category, or from a certain area clearly defined. Also, in the present work is performed the evaluation of the real energy potential stored in agricultural residues resulting from harvesting of 10 ha of wheat. This method of evaluation is useful in determining the real energy potential of solid biomass and allows farmers to choose correctly the category of biomass grown to be energetically capitalized. Source

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