Abstract
Clean, more responsible energy production in gas turbine power plants is a challenge. Interestingly, various alternative sources could be found in agricultural locations with great potential of being transformed from agricultural waste to energy. Corn cob gasification gas could be successfully implemented in gas turbines through co-firing with natural gas. Concurrently, agricultural biogas could also be employed for such a purpose. The technology could be implemented in locations such as Vojvodina, Serbia, which is an agricultural region with great potential for producing biogas from agricultural waste. Therefore, this paper approaches the practical implementation of gas produced by adiabatic corn digestion with CO2 recirculation. Five different cases were assessed. The results are compared to previous analyses that used co-firing of the corn cob gasification gas in representative gas turbine systems. Impacts of the fuel composition on the characteristics of combustion were analyzed using CHEMKIN PRO with GRI–Mech 3.0. Impacts of fuel quality on the power plant performance were analyzed through calculations with a numerical model based on a Brayton cycle of 3.9 MW power output. The application shows acceptable values during co-firing with natural gas without modification of the overall system, with better outlet parameters compared to pure corn gasification gas.
Highlights
The present concept investigates possibilities of practical implementation of gases that originate from biomass
The main advantage of biomass gas implementation in conventional energy production systems is tangible via the substitution of fossil fuels by alternative fuels
Corn cob gasification gas and corn adiabatic digestion gas were investigated to determine the impacts of the fuel quality on a conventional gas turbine cycle
Summary
Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. The utilization of biomass as an energy source is inefficient in many developing agricultural regions that intend to use it as alternative energy source [1]. Biomass can provide an economically sustainable energy source as long as it is recovered from either industrial or agricultural waste. Advantages can be achieved through the local reduction of fossil-based sources, with great positive impact in countries with significant energy dependance on fossil imports
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