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1 Journal of Water and Land Development

1 2021

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Simulations of fuels consumption in the CHP system based on modernised GTD-350 turbine engine

Hryniewicz Marek, Roman Kamil

Journal of Water and Land Development

2021

no. 51

250--255

There were done simulations of fuels consumption in the system of electrical energy and heat production based on modernised GTD-350 turbine engine with the use of OGLST programme. In intention the system based on GTD-350 engine could be multifuel system which utilise post-fying vegetable oil, micronised biomass, sludge, RDF and fossil fuels as backup fuels. These fuels have broad spectrum of LHV fuel value from 6 (106 J•kg-1 ) (e.g. for sludge) to 46 (106 J•kg-1) (for a fuel equivalent with similar LHV as propan) and were simulations scope. Simulation results showed non linear dependence in the form of power function between unitary fuel mass consumption of simulated engine GTD-350 needed to production of 1 kWh electrical energy and LHV fuel value (106 J•kg-1). In this dependence a constant 14.648 found in simulations was multiplied by LHV raised to power - 0.875. The R2 determination coefficient between data and determined function was 0.9985. Unitary fuel mass consumption varied from 2.911 (kg•10-3•W-1•h-1) for 6 (106 J•kg-1) LHV to 0.502 (kg•10-3 •W-1 •h-1) for 46 (106 J•kg-1) LHV. There was assumed 7,000 (h) work time per year and calculated fuels consumption for this time. Results varied from 4,311.19 (103 kg) for a fuel with 6 (106 J•kg-1) LHV to 743.46 (103 kg) for a fuel with 46 (106 J•kg-1) LHV. The system could use fuels mix and could be placed in containers and moved between biomass wastes storages placed in many different places located on rural areas or local communities.