Energy and Exergy Analysis of Air Gasification for Pine Cone in Downdraft Gasifier by Using Cycle Tempo


Tumurbat T., Özveren U. , Karaca Albayrak F.

5th International Conference on Sustainable Development (ICSD 2019), Belgrade, Serbia, 17 - 21 April 2019, pp.8-15

  • Publication Type: Conference Paper / Full Text
  • City: Belgrade
  • Country: Serbia
  • Page Numbers: pp.8-15

Abstract

Biomass gasification is considered as a potential pathway for energy production compared to gasification of fossil fuels such as coal, crude etc. from perspective of its environmental, and economical aspects. However, the exergy and energy analysis must be deemed for efficient conversion of biomass. The aim of this paper is to conduct a thermodynamic study with respect to exergy and energy analysis of a fixed-bed downdraft gasifier for pine cone using Cycle-Tempo software (TU Delft, the Netherlands). The gasification process is predicted to take place at environmental pressure using air as gasifying medium. The gasifier produced a combustible gas with a H2, CO, CO2 and CH4 concentrations of 21.6, 22.8, 14.5 and 2.52 mol.% respectively, at a total flow of air of 8.93 kg/h. The pine cone in the feedstock was effectively gasified to produce syngas with a lower heating value of 4.98 MJ/Nm3 and chemical exergy value of 38.40 kW. Results reveal that the developed model is able to predict composition of syngas, exergy and the heating value.