Energetic assessment of a combined heat and power integrated biomass gasification–internal combustion engine system by using Aspen Plus®

Damartzis, Theodoros; Michailos, Stavros; Zabaniotou, Α.

doi:10.1016/j.fuproc.2011.11.010

Cited by 120 publications

(93 citation statements)

References 25 publications

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“…The energy conversion efficiency is in accordance with similar researches [62,63]. In particular Damartzis et al, who modeled an integrated CHP system consisting of a biomass gasification unit coupled with an internal combustion engine (ICE) via Aspen Plus, obtained a thermal efficiency 33.5% [64], while in [65] an electric efficiency of 15% with olive pits and 23% with pine wood was reached.…”

Section: Energy Balancessupporting

confidence: 85%

Modeling and Experimental Study of a Small Scale Olive Pomace Gasifier for Cogeneration: Energy and Profitability Analysis

et al. 2017

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A thermodynamic model of a combined heat and power (CHP) plant, fed by syngas produced by dry olive pomace gasification is here presented. An experimental study is carried out to inform the proposed model. The plant is designed to produce electric power (200 kW el ) and hot-water by using a cogenerative micro gas turbine (micro GT). Before being released, exhausts are used to dry the biomass from 50% to 17% wb. The ChemCad software is used to model the gasification process, and input data to inform the model are taken from experimental tests. The micro GT and cogeneration sections are modeled assuming data from existing commercial plants. The paper analyzes the whole conversion process from wet biomass to heat and power production, reporting energy balances and costs analysis. The investment profitability is assessed in light of the Italian regulations, which include feed-in-tariffs for biomass based electricity generation.

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Section: Energy Balancessupporting

confidence: 85%

Modeling and Experimental Study of a Small Scale Olive Pomace Gasifier for Cogeneration: Energy and Profitability Analysis

et al. 2017

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“…Heat recovery is accomplished by recycling all hot gas streams from combustion and syngas cooling to the dryer. This system design is of similar form to those seen in other biomass gasification works [40], [67] suggesting that the overall system design is reasonable. Details of each process area are deferred to Sections 2.1-2.7.…”

Section: Methodssupporting

confidence: 56%

“…The Boston-Matthias modified Peng-Robinson equation of state is used throughout the model [67]. Thermophysical properties (enthalpy, density, specific heat capacity) for sludge and ash are determined from their ultimate and proximate analyses (Table 1.1) by the built-in coal property models HCOALGEN and DCOALIGT.…”

Section: Modelingmentioning

confidence: 99%

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Techno-economic analysis of wastewater sludge gasification: A decentralized urban perspective

Lumley

Ramey

Prieto

et al. 2014

Bioresource Technology

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Wastewater sludge management is a significant challenge for small-scale, urban wastewater treatment plants (WWTPs). Common management strategies stabilize sludge for land disposal by microbial action or heat. Such approaches require large footprint processing facilities or high energy costs. A new approach considers sludge to be a fuel which can be used on-site to produce electricity. Electrical power generation fueled by sludge may serve to reduce the volume of hazardous waste requiring land disposal and create economic value for WWTP operators. To date, no detailed system designs or techno-economic analyses have been found for small scale sludge fueled power plants. Fortunately, a literature base exists describing the fundamentals of applying thermochemical conversion (TCC) technologies to sewage sludge. Thermochemical conversion of sludge is established for large WWTPs, however large system design techniques may not be applicable to small systems.To determine the feasibility of small scale power generation fueled by sludge, this work evaluates several thermochemical conversion technologies from the perspective of small urban WWTPs. Literature review suggests wet oxidation, direct combustion, pyrolysis, and gasification as candidate front-end TCC technologies for on-site generation. Air and steam blown gasification are found to be the only TCC technologies appropriate for sludge. Electrical power generation processes based on both air and steam blown gasification are designed around effective waste heat recovery for sludge drying. The systems are optimized and simulated for net electrical output in ASPEN Plus R . Air blown gasification is found to be superior. Sensitivity analyses are conducted to determine the effect of fuel chemical composition on net electrical output. A technical analysis follows which determines that such a system can be built using currently available technologies. Finally, an economic analysis concludes that a gasification based power system can be economically viable for WWTPs with raw sewage flows of 0.115 m 3 /s, or about 2.2 million gallons per day.

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“…A fixed bed gasifier of 350 kW th was used by Biagini et al, in 2014, it was fed with corn cobs, reporting a gasification efficiency of the system of 67% and a syngas heating value of 5.7 MJ/Nm 3 [18]. Literature review shows how the stover can also be processed in fluidized bed gasifiers [19,20].…”

Section: Introductionmentioning

confidence: 99%

Modeling of coupling gasification and anaerobic digestion processes for maize bioenergy conversion

Allesina

Pedrazzi

Guidetti³

et al. 2015

Biomass and Bioenergy

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Energetic assessment of a combined heat and power integrated biomass gasification–internal combustion engine system by using Aspen Plus®

Cited by 120 publications

References 25 publications

Modeling and Experimental Study of a Small Scale Olive Pomace Gasifier for Cogeneration: Energy and Profitability Analysis

Modeling and Experimental Study of a Small Scale Olive Pomace Gasifier for Cogeneration: Energy and Profitability Analysis

Techno-economic analysis of wastewater sludge gasification: A decentralized urban perspective

Modeling of coupling gasification and anaerobic digestion processes for maize bioenergy conversion

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