A Preliminary Comparative Performance Evaluation of Highly Efficient Waste-to-Energy Plants

Bogale, Wondwossen; Viganò, Federico

doi:10.1016/j.egypro.2014.01.137

Cited by 30 publications

(8 citation statements)

References 8 publications

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“…-Flue gases flow or combustion zone separation -Major portions of the corrosive species are released on the front of the grate (where the waste reaches after feeder) and rear parts of the grate are characterized by releasing much less corrosive combustion products. That fraction which exhibits low chlorine concentration could then be used in a high temperature superheater to increase the steam temperature and thereby the elec- tem equipped with subsequently arranged sections of: gas cooling, gas cleaning, combustion and further superheating of the regenerated steam from the main boiler (Bogalea and Viganòa, 2014). -Improved cleaning methods -Fouling heat transfer surfaces is a serious problem for WtE plants.…”

Section: Modern Moving Grate Boilers Solutionsmentioning

confidence: 99%

Energy Recovery from Municipal Waste based on Moving Grate Technology

Cyranka

Jurczyk

2016

Agricultural Engineering

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The objective of the paper was to analyse possibilities and advantages of energy recovery from municipal solid waste during the thermal treatment in boilers with a moving grate system. The state of the art of Waste-to-Energy (WtE) boilers was investigated mainly by reviewing papers published in scientific journals and at conferences but also by taking into consideration reports from research institutes. The article shows the main aspects that determine the popularity of this type of boilers as well as new solutions which greatly improve the process of thermal treatment of waste. It proves that waste incineration boilers based on the moving grate technology prevail mainly because of its simplicity, reliability and effective energy generation to which special attention was paid. Additionally, the article mentions how WtE boilers are designed and operated to incinerate municipal waste with a great variation in composition with simultaneous notable energy recovery and low environmental impacts. Contemporary development of the Polish WtE infrastructure can be a very important factor influencing the national municipal waste management together with renewable energy and energy efficiency policies.

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Section: Modern Moving Grate Boilers Solutionsmentioning

confidence: 99%

Energy Recovery from Municipal Waste based on Moving Grate Technology

Cyranka

Jurczyk

2016

Agricultural Engineering

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“…However, the efficiency of a MSW incineration plant dedicated to the generation of electrical energy is highly dependent on the size of the installation. Although there was not access to a sufficient amount of data on the performance and efficiency of MSW incineration plants dedicated to the generation of electrical energy with different capacities, in order to build an estimation model; it was identified that Bogale et al [42] modeled and analyzed high-efficiency plants from the thermodynamic and technological point of view to investigate, among other aspects, the effects of installation size on net electrical efficiency. Figure 2 shows the results of this work, in which the capacity of the plant was expressed in terms of input thermal energy, in MW.…”

Section: Efficiency and Capacity Of Msw Thermal Treatment Technologiementioning

confidence: 99%

Feasibility Analysis for the Implementation of Thermal Treatment Technologies for Municipal Solid Waste in Colombia

Ossa¹,

Aristizábal²,

Ospina³

2020

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The purpose of this study is to determine the financial feasibility of electricity production projects in Colombia using thermal treatment technologies for Municipal Solid Waste (MSW), by assessing the generation potential, the costs associated with investment, operation and maintenance of infrastructure, and the environmental impacts in terms of CO2 emissions. The study is developed for three capital cities that reflect different conditions of production and characteristics of the MSW, which are: Bogotá D.C., Cartagena and Manizales. MSW production volumes were determined from information reported by public sanitation service providers, while their lower calorific value was estimated from a predictive model referenced in the literature. The results of the study indicate that the development of these technologies, in the three cities mentioned, would allow to contribute 2.309 GWh/year, corresponding to approximately 3,3% of the electricity demand in Colombia; likewise, they would reduce CO2 emissions by more than 3 million tons per year, compared to the emissions generated by the final disposal of waste in sanitary landfills. The plant located in the city of Bogota would have the best financial performance, with an internal rate of return of 7,1%, while the infrastructure located in the cities of Cartagena and Manizales would not have an interesting financial performance; under the assumptions raised in the study.

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“…It is predicted that biomass Thus, the live steam parameters of a WtE boiler are seriously restricted and generally around 4 MPa and 400 • C. Xu et al [17] proposed a solution that uses phase-change materials-based refractory bricks on the water wall of a WtE boiler to raise the steam temperature. Bogalea et al [18] described a design that divides the flue gas into two fractions, and the lower corrosive part is delivered to a separate superheater to enhance the steam parameters. Another approach to promote the steam temperature is employing a radiant superheater in the WtE boiler [19].…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic and Economic Analyses of a New Waste-to-Energy System Incorporated with a Biomass-Fired Power Plant

Pan

Zhang

et al. 2020

Energies

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A novel design has been developed to improve the waste-to-energy process through the integration with a biomass-fired power plant. In the proposed scheme, the superheated steam generated by the waste-to-energy boiler is fed into the low-pressure turbine of the biomass power section for power production. Besides, the feedwater from the biomass power section is utilized to warm the combustion air of the waste-to-energy boiler, and the feedwater of the waste-to-energy boiler is offered by the biomass power section. Based on a 35-MW biomass-fired power plant and a 500-t/d waste-to-energy plant, the integrated design was thermodynamically and economically assessed. The results indicate that the net power generated from waste can be enhanced by 0.66 MW due to the proposed solution, and the waste-to-electricity efficiency increases from 20.49% to 22.12%. Moreover, the net present value of the waste-to-energy section is raised by 5.02 million USD, and the dynamic payback period is cut down by 2.81 years. Energy and exergy analyses were conducted to reveal the inherent mechanism of performance enhancement. Besides, a sensitivity investigation was undertaken to examine the performance of the new design under various conditions. The insights gained from this study may be of assistance to the advancement of waste-to-energy technology.

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A Preliminary Comparative Performance Evaluation of Highly Efficient Waste-to-Energy Plants

Cited by 30 publications

References 8 publications

Energy Recovery from Municipal Waste based on Moving Grate Technology

Energy Recovery from Municipal Waste based on Moving Grate Technology

Feasibility Analysis for the Implementation of Thermal Treatment Technologies for Municipal Solid Waste in Colombia

Thermodynamic and Economic Analyses of a New Waste-to-Energy System Incorporated with a Biomass-Fired Power Plant

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