Authors

Abstract

The article presents the results obtained from experimental research conducted with an electric equipment (a watercraft) for harvesting aquatic biomass (reed, cattail, water lily, etc.), remote controlled, symbolized as ERBA. This equipment was designed and built in Romania by researchers from INMA Bucharest and ICPE-CA, at the level of experimental model. The purpose of this equipment is to develop a national system of machines for cleaning lakes, navigable canals, and specific areas of the Danube Delta Biosphere Reserve from excess biomass that needs to be removed for the proper functioning of aquatic ecosystems. The harvested biomass is used as raw material for the production of liquid and gaseous fuels, as well as biofertilizers, which can be utilized as inputs in the bioeconomy. The phenological characteristics of the harvested biomass, the structural and functional characteristics of the vessel, the laboratory experimental records, the nautical indices, the exploitation indices, and the energy consumption were measured under different working conditions and regimes, and with different types of biomass.

Abstract in Romanian

Articolul prezinta rezultatele obtinute in cadrul cercetarilor experimentale cu un echipament electric (ambarcatiune) de recoltat biomasa acvatica (stuf, papura, zambila de balta, etc.), controlat de la distantă, simbolizat ERBA, echipament proiectat si realizat in Romania, de cercetatorii de la INMA Bucuresti si ICPE-CA, la nivel de model experimental. Echipamentul a fost realizat in scopul dezvoltarii pe plan national a sistemei de masini, pentru efectuarea curatarii lacurilor, canalelor navigabile si a zonelor specifice Biosferei Delta Dunarii de biomasa in excces care trebuie inlaturata pentru buna functionare a ecosistmelor acvatice. Biomasa recoltata este folosita ca materie prima pentru obtinerea de combustibili lichizi, gazosi si biofertilizatori, produse care pot fi utilizate ca inputuri in bioeconomie si nu numai. Dupa o scurta prezentare a unor cercetari efectuate la nivel mondial, legate de biomasa acvatica si modul de gestionare a acesteia, in contextul realizarii managementului ecosistmelor acvatice, s-a prezentat echipamentul electric realizat si cercetarile experimentale efectuate in vederea determinarii parametrilor costructivi și functionali ai ambarcațiunii, indicii nautici, indicii de exploatare și a consumului de energie, realizate in diferite condiții regimuri de lucru și diferite tipuri de biomasă, urmate de concluziile formulate in urma cercetarilor.