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2014, vol. 42, br. 2, str. 112-117
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Modifikacija postojećeg turbovratilnog motora da bi kao gorivo koristio sintetički gas
Modification of existing turboshaft engine in order to operate on synthetic gas
aEDePro company, Belgrade bUniversity of Tripoli, Tripoli, Lybia cUniverzitet u Beogradu, Mašinski fakultet, Srbija
e-adresa: mmilos@mas.bg.ac.rs
Sažetak
Sintetički gas je danas ko-proizvod procesa kao što su gasifikacija otpada i prerade biomase, uglja i drugih potencijalnih goriva. Iako sastav sintetičkog gasa zavisi od prethodnih procesa, generalno se sastoji od mešavine vodonika, ugljen-monoksida i metana u različitim odnosima. Ideja da se sintetički gas dobijen preradom otpada koristi kao gorivo za turbo-generator je veoma privlačna, ali i vrlo zahtevna. U ovom radu je prezentovana modifikacija postojećeg turbo-vratilnog motora da bi mogao da koristi sintetički gas kao gorivo. Pored problema kao što su mala toplotna moć, drugačiji stehiometrijski odnos u poređenju sa kerozinom i visok procenat vodonika, inženjerski zadatak je bio da se problem reši sa minimalnim brojem izmena. Problem je rešen modifikaciojom postojećih vazdušnih raspršivača i verifikovan je eksperimentalno.
Abstract
Synthetic gas is nowadays the co-product of procceses such as waste gasification and processing biomass, coal and other potentional fuels. Although its composition depends on previous process, synthetic gas is generally mixture of hydrogen, carbon-monoxide and methane in different ratios. The idea to use gases from waste as a fuel for gas-turbine generator producing electric energy is very attractive but also challenging. In this paper is presented modification of an existing turbo-shaft engine in order to be capable to operate with synthetic gas. Together with problems such as low heating value of the gas, different stochiometric ratio of gas and air compared to kerosene/air combination and high hydrogen contents, the engineering task was to do it with minimum number of changes. Problem is solved by adjusting existing airblast atomizers and experimentally verified.
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