Propose and analysis of an integrated biomass gasification‐CHAT‐ST cycle as an efficient green power plant

Abstract

Advanced combined cycles using gas turbine and bottoming cycles have been developed to improve energy efficiency and output power of the conventional thermal power plants. In this study, integrated biomass gasification‐cascaded humidification advanced turbine and steam turbine cycle have been presented as a novel approach to reach out the sustainable energy vision. All generators of this comprehensive system operate by syngas produced from biomass gasification. Based on the technical consideration, modeling and simulation of the mentioned cycle have been performed, which results indicated more than 33.6 MW power generation and about 56.4% total efficiency in the base case. Moreover, parametric studies demonstrated the considerable dependency of the delivered power, specific fuel consumption, and heat rate to ambient temperature variations. In addition, principal parameters changes due to the fluctuation of the gasification temperature demonstrated an obvious increase in fuel consumption rate after crossing a turning point. Eventually, other achievements such as the negative effect of biomass moisture increase on cycle outputs, and also, advantages of turbine inlet temperature rise have obtained by plant analyzes. © 2019 American Institute of Chemical Engineers Environ Prog, 38:e13146, 2019

Three‐dimensional numerical modelling of a fast fluidized bed biomass gasifier to generate energy from wastes

“…The gas-solid force (drag) is the difference in the speed of the gas and solid phases, and the drag coefficient is expressed by Equation (19). In this study, the Gidaspow [32] model is applied by using Equations ( 20)- (23).…”

“…Hosseinpour et al [ 19 ] took into account both the technical and financial aspects of an advanced integrated power generation cycle. A steam turbine, a cascaded humidified advanced turbine, and a biomass gasifier made up the system.…”

Evaluation of performance improvement of the combined biomass gasifier power cycle using low‐temperature bottoming cycles: Organic Rankine cycle, Kalina and Goswami

“…Meanwhile, these power plants are promising in the energy‐intensive industries, especially when cooling loads demand occurs, where supplying electricity for cooling equipment is costly. Therefore, presenting innovative solutions to improve the efficiency of conventional combined power plants using advanced cycles and utilizing the recycled heat of conventional topping cycles can lead to the development of sustainable and environmentally friendly energy systems 3,4 …”

“…Therefore, presenting innovative solutions to improve the efficiency of conventional combined power plants using advanced cycles and utilizing the recycled heat of conventional topping cycles can lead to the development of sustainable and environmentally friendly energy systems. 3,4 In addition, low-temperature cycles that operate with the different working fluids are conveniently suitable for recovering heat from steam turbines in small and medium power plants in the capacity range of hundreds of kilowatts. In fact, instead of water, organic chemicals with desirable thermodynamic properties are used in these cycles so that the enthalpy drop is much lower.…”

Sustainable approach to integrate a conventional power plant and renewable energies, coupled with the Goswami cycle and Maisotsenko heat exchanger

“…In this study, biomass gasification and parabolic solar concentrators are proposed to contribute to generating a portion of the required input energy for the combined cycle. [3][4][5] One of the main aspects of this research is presenting a practical solution with a futuristic and innovative approach to the energy supply problem. In this regard, the utilization of the innovative Maisotsenko cycle for gas turbine inlet air cooling, [6] as well as the implementation of organic Rankine and Goswami low-temperature cycles, can enhance the efficiency of the integrated cycle and reduce emissions.…”