Retrofitting of municipal coal fired heating plant with integrated biomass gasification gas turbine based cogeneration block

Kalina, Jacek

doi:10.1016/j.enconman.2009.12.014

Cited by 24 publications

(9 citation statements)

References 17 publications

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“…They claim that the technology promises lower electricity costs than conventional biomass-fired steam turbine systems. It was found in previous work [4] that in the case of utility scale plant (above 60-90 MW of biomass energy input) a project of this type can be financially attractive. The relatively good economic performance of the project is the result of effective financial support and local policy promoting electricity generation from renewable resources.…”

Section: It Has Been Already Demonstrated In Projects Arbrementioning

confidence: 98%

“…Dornburg et al [3] presented that the highest relative primary energy savings, that result from using biomass, can be obtained with atmospheric and pressurized integrated biomass gasification combined cycle cogeneration plants. An amount of the non-renewable primary energy that is replaced within a regional energy system by a co-generation plant can be higher than 1.0 GJ per GJ of the biomass energy input [3,4]. According to Walter et al [5] in the middle run both co-fired and pure integrated biomass gasification plants can be a better option than capture and storage of CO 2 …”

Section: Introductionmentioning

confidence: 97%

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Fossil fuel savings, carbon emission reduction and economic attractiveness of medium-scale integrated biomass gasification combined cycle cogeneration plants

Kalina

2012

THERM SCI

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The paper theoretically investigates the system made up of fluidized bed gasifier, SGT-100 gas turbine and bottoming steam cycle. Different configurations of the combined cycle plant are examined. A comparison is made between systems with producer gas (PG) and natural gas (NG) fired turbine. Supplementary firing of the PG in a heat recovery steam generator is also taken into account. The performance of the gas turbine is investigated using in-house built Engineering Equation Solver model. Steam cycle is modeled using GateCycleTM simulation software. The results are compared in terms of electric energy generation efficiency, CO2 emission and fossil fuel energy savings. Finally there is performed an economic analysis of a sample project. The results show relatively good performance in the both alternative configurations at different rates of supplementary firing. Furthermore, positive values of economic indices were obtained. [Acknowledgements. This work was carried out within the frame of research project no. N N513 004036, titled: Analysis and optimization of distributed energy conversion plants integrated with gasification of biomass. The project is financed by the Polish Ministry of Science.

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Section: It Has Been Already Demonstrated In Projects Arbrementioning

confidence: 98%

Section: Introductionmentioning

confidence: 97%

Fossil fuel savings, carbon emission reduction and economic attractiveness of medium-scale integrated biomass gasification combined cycle cogeneration plants

Kalina

2012

THERM SCI

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“…The NPV is always calculated as the function of time τ, and represents the total operation period of an installation or any other operation time given within the time period considered in the economic analysis (Bejan et al, 1996;Biezma and San Cristobal, 2006;Delivand et al, 2001;Kalina, 2010;Pettinau et al, 2013).…”

Section: Objective Function and Optimisation Algorithmmentioning

confidence: 99%

“…where C τ is the yearly cost of operation (EUR); CF τ is the yearly cash flow (EUR); J 0 is the total investment outlays (EUR); L is the liquidation value of the project (EUR); r d is discount rate; S τ is the yearly sale income (EUR); and T τ is the yearly income tax (EUR). Cash flow (CF) forms the basic criterion in the assessment of the economic effectiveness and expresses the ratio between the revenue and expenditure during the period of the operation of a business under economic analysis (Biezma and San Cristobal, 2006;Kalina, 2010;Osborne, 2010).…”

Section: Objective Function and Optimisation Algorithmmentioning

confidence: 99%

Production of biosolid fuels from municipal sewage sludge: Technical and economic optimisation

Wzorek

Tańczuk

2015

Waste Manag Res

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The article presents the technical and economic analysis of the production of fuels from municipal sewage sludge. The analysis involved the production of two types of fuel compositions: sewage sludge with sawdust (PBT fuel) and sewage sludge with meat and bone meal (PBM fuel). The technology of the production line of these sewage fuels was proposed and analysed. The main objective of the study is to find the optimal production capacity. The optimisation analysis was performed for the adopted technical and economic parameters under Polish conditions. The objective function was set as a maximum of the net present value index and the optimisation procedure was carried out for the fuel production line input capacity from 0.5 to 3 t h(-1), using the search step 0.5 t h(-1). On the basis of technical and economic assumptions, economic efficiency indexes of the investment were determined for the case of optimal line productivity. The results of the optimisation analysis show that under appropriate conditions, such as prices of components and prices of produced fuels, the production of fuels from sewage sludge can be profitable. In the case of PBT fuel, calculated economic indexes show the best profitability for the capacity of a plant over 1.5 t h(-1) output, while production of PBM fuel is beneficial for a plant with the maximum of searched capacities: 3.0 t h(-1). Sensitivity analyses carried out during the investigation show that influence of both technical and economic assessments on the location of maximum of objective function (net present value) is significant.

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“…Most of them are based on the thermodynamic equilibrium approach towards modelling gasification. Some examples are given by Brown et al (2009), Buragohain et al (2010), Kalina (2010), Klimantos et al (2009) and Schuster et al (2001). The equilibrium modelling of gasification reactors is also utilised by software available for computational analysis and simulation of energy plants, that is e.g.…”

Section: Introductionmentioning

confidence: 99%

Modelling of fluidized bed biomass gasification in the quasi-equilibrium regime for preliminary performance studies of energy conversion plants

Kalina¹

2011

Chemical and Process Engineering

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Thermodynamic equilibrium-based models of gasification process are relatively simple and widely used to predict producer gas characteristics in performance studies of energy conversion plants. However, if an unconstrained calculation of equilibrium is performed, the estimations of product gas yield and heating value are too optimistic. Therefore, reasonable assumptions have to be made in order to correct the results. This paper proposes a model of the process that can be used in case of deficiency of information and unavailability of experimental data. The model is based on free energy minimization, material and energy balances of a single zone reactor. The constraint quasiequilibrium calculations are made using approximated amounts of non-equilibrium products, i.e. solid char, tar, CH 4 and C 2 H 4 . The yields of these products are attributed to fuel characteristics and estimated using experimental results published in the literature. A genetic algorithm optimization technique is applied to find unknown parameters of the model that lead to the best match between modelled and experimental characteristics of the product gas. Finally, generic correlations are proposed and quality of modelling results is assessed in the aspect of its usefulness for performance studies of power generation plants.

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Retrofitting of municipal coal fired heating plant with integrated biomass gasification gas turbine based cogeneration block

Cited by 24 publications

References 17 publications

Fossil fuel savings, carbon emission reduction and economic attractiveness of medium-scale integrated biomass gasification combined cycle cogeneration plants

Fossil fuel savings, carbon emission reduction and economic attractiveness of medium-scale integrated biomass gasification combined cycle cogeneration plants

Production of biosolid fuels from municipal sewage sludge: Technical and economic optimisation

Modelling of fluidized bed biomass gasification in the quasi-equilibrium regime for preliminary performance studies of energy conversion plants

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