Boiler combusting large soya straw bales for heating the greenhouses complex

Abstract

U jednoj od najvećih kompanija koje se bave poljoprivrednom proizvodnjom u Srbiji pod zasadom soje se nalazi preko 2000 ha, i svake godine se proizvede oko 4000 t balirane sojine slame. Planirano je da se sojina slama koristi za grejanje plastenika, ukupne površine 5 ha. Zbog toga, u Laboratoriji za termotehniku i energetiku Instituta za nuklearne nauke 'Vinča' je učinjen napor da se razvije tehnologija za korišćenje krupne balirane biomase za proizvodnju energije. U prvoj fazi, razvijeno je demonstraciono eksperimentalno postrojenje - ložište za sagorevanje bala sojine slame. Ložište je izgrađeno i termotehnički ispitano, da bi se utvrdio kvalitet sagorevanja. Kako su rezultati ispitivanja bili veoma zadovoljavajući, u drugoj fazi razvoja, vrelovodni kotao sličnih karakteristika (koji sagoreva bale sojine slame dimenzija 0,7 x 1,2 x 2,7 m) je projektovan, i trenutno je u fazi izgradnje.In one of the largest agricultural companies in Serbia with over 2000 ha of soya plantations there is 4000 t/year of baled soya straw production. Soya straw biomass is planned to be used as renewable energy source for heating the greenhouses, with 5 ha in area. Therefore, efforts have been made to develop a technology for utilizing large bales of soya straw for energy production. In the first phase, a demo energy production facility - furnace was developed and built. The facility was tested in order to examine the quality of combustion of large soya straw bales. Since the experimental results obtained by testing of this facility proved to be very satisfactory in the second phase of development, the hot water boiler of similar characteristics (burning soya straw bales, with dimensions 0.7 x 1.2 x 2.7 m) was designed