Baloyi, JBello-Ochende, TMeyer, JP2014-08-152014-08-152014-06Baloyi, J, Bello-Ochende, T and Meyer, J.P. 2014. Thermodynamic optimisation and computational analysis of irreversibilities in a small-scale wood-fired circulating fluidised bed adiabatic combustor. Energy, vol. 70, pp 653- 6630360-5442http://ac.els-cdn.com/S0360544214004654/1-s2.0-S0360544214004654-main.pdf?_tid=06d3daf6-2396-11e4-8a65-00000aab0f01&acdnat=1408008979_c5c8802313ddae9beb39088759971dcahttp://hdl.handle.net/10204/7597Copyright: 2014 Elsevier. This is the pre/post print version. The definitive version is published in Energy, vol 70, pp 653-663An analysis of irreversibilities generated due to combustion in an adiabatic combustor burning wood was conducted. This was done for a reactant mixture varying from a rich to a lean mixture. A non-adiabatic non-premixed combustion model of a numerical code was used to simulate the combustion process where the solid fuel was modelled by using the ultimate analysis data. The entropy generation rates due to the combustion and frictional pressure drop processes were computed to eventually arrive at the irreversibilities generated. It was found that the entropy generation rate due to frictional pressure drop was negligible when compared to that due to combustion. It was also found that a minimum in irreversibilities generated was achieved when the Air-Fuel mass ratio was 4.9, which corresponds to an equivalence ratio of 1.64, which are lower than the respective Air-Fuel mass ratio and equivalence ratio for complete combustion with theoretical amount of air of 8.02 and 1.enEntropy generation ratesAdiabatic combustorIrreversibilitiesWood-firedArticleBaloyi, J., Bello-Ochende, T., & Meyer, J. (2014). Thermodynamic optimisation and computational analysis of irreversibilities in a small-scale wood-fired circulating fluidised bed adiabatic combustor. http://hdl.handle.net/10204/7597Baloyi, J, T Bello-Ochende, and JP Meyer "Thermodynamic optimisation and computational analysis of irreversibilities in a small-scale wood-fired circulating fluidised bed adiabatic combustor." (2014) http://hdl.handle.net/10204/7597Baloyi J, Bello-Ochende T, Meyer J. Thermodynamic optimisation and computational analysis of irreversibilities in a small-scale wood-fired circulating fluidised bed adiabatic combustor. 2014; http://hdl.handle.net/10204/7597.TY - Article AU - Baloyi, J AU - Bello-Ochende, T AU - Meyer, JP AB - An analysis of irreversibilities generated due to combustion in an adiabatic combustor burning wood was conducted. This was done for a reactant mixture varying from a rich to a lean mixture. A non-adiabatic non-premixed combustion model of a numerical code was used to simulate the combustion process where the solid fuel was modelled by using the ultimate analysis data. The entropy generation rates due to the combustion and frictional pressure drop processes were computed to eventually arrive at the irreversibilities generated. It was found that the entropy generation rate due to frictional pressure drop was negligible when compared to that due to combustion. It was also found that a minimum in irreversibilities generated was achieved when the Air-Fuel mass ratio was 4.9, which corresponds to an equivalence ratio of 1.64, which are lower than the respective Air-Fuel mass ratio and equivalence ratio for complete combustion with theoretical amount of air of 8.02 and 1. DA - 2014-06 DB - ResearchSpace DP - CSIR KW - Entropy generation rates KW - Adiabatic combustor KW - Irreversibilities KW - Wood-fired LK - https://researchspace.csir.co.za PY - 2014 SM - 0360-5442 T1 - Thermodynamic optimisation and computational analysis of irreversibilities in a small-scale wood-fired circulating fluidised bed adiabatic combustor TI - Thermodynamic optimisation and computational analysis of irreversibilities in a small-scale wood-fired circulating fluidised bed adiabatic combustor UR - http://hdl.handle.net/10204/7597 ER -