Thermodynamic model of a downdraft gasifier

Fortunato, Bernardo; Brunetti, Gianluigi; Camporeale, Sergio Mario; Torresi, Marco; Fornarelli, Francesco

doi:10.1016/j.enconman.2017.02.061

Cited by 45 publications

(23 citation statements)

References 49 publications

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“…It is a renowned reality that in biomass gasification four regions i.e., drying, pyrolysis, combustion, and gasification are established [34]. Drying of biomass for reduction of moisture content up to 5% is taken place in the drying zone.…”

Section: Process Modellingmentioning

confidence: 99%

Hydrogen Rich Product Gas from Air–Steam Gasification of Indian Biomasses with Waste Engine Oil as Binder

Sharma¹,

Gupta²,

Pandey

2022

Waste Biomass Valor

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Present study concerns with the production of H2 rich product gas by thermochemical energy conversion having biomass gasification as a route for the four biomasses i.e., Kasai Saw Dust, Lemon Grass, Wheat Straw and Pigeon Pea Seed Coat. The biomasses are from the family of woody biomass, grasses, agricultural waste and food process industry wastes. Waste engine oil as an additive is used, which also acts as a binder. Air gasification and Air-steam gasification is applied and compared for product gas composition, hydrogen yield and other performance parameters like lower heating value, energy yield. Product gas constituents, hydrogen production is examined with different steam to biomass ratio (S/B ratio) and equivalence ratio. The equivalence ratio varies from 0.20-0.40 and the steam to biomass ratio varies between 0-4. The waster engine oil is mixed with the biomasses with different percentage of 5 and 10 wt%. For enhancement of feedstock quality palletization process is applied. The H2 yield is greatly affected by the equivalence ratio. Results show maximum H2 production and higher calorific value of product gas at an air to fuel of 0.26 for all the biomass pallets. Also, the S/B ratio observed as important aspect for hydrogen enrichment. Hydrogen yield is maximum at 2.4 steam to biomass ratio. This study considers the rarely studied Indian biomasses with waste engine oil as an additive for hydrogen-rich product gas production and will be beneficial for small scale hydrogen-rich syngas production considering the central Indian region originated biomasses. Statement of Novelty (SON):Research work belongs to eco-friendly use of rarely studied Indian biomass pallets. Equivalence air to fuel ratio (E/R ratio), steam to biomass ratio (S/B ratio) and waste engine oil as additive have been considered to upgrade H2 content and Calorific Value (CV) of the product gas. Novelty of work include use of waste engine oil as additive to make biomass pallets.

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Section: Process Modellingmentioning

confidence: 99%

Hydrogen Rich Product Gas from Air–Steam Gasification of Indian Biomasses with Waste Engine Oil as Binder

Sharma¹,

Gupta²,

Pandey

2022

Waste Biomass Valor

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“…Modeling using cycle-tempo has also been conducted in a lot of previous studies. The authors [6] conducted research on thermodynamic model of a downdraft gasifier. While, the authors [7] performed research on experimental prototype development and performance analysis of a small-scale combined cycle for energy generation from biomass.…”

Section: A Modelingmentioning

confidence: 99%

Effect of Increasing Sea Water Temperature on Performance of Steam Turbine of Muara Tawar Power Plant

Darmawan¹,

Yuwono²

2019

JTS

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Muara Tawar Power Plant is located on the coast of Bekasi, West Java, Indonesia. Along with the economic development, there are plans to do reclamation the sea around Muara Tawar Power Plant and build around it as a port and industrial estate. This could potentially lead to an increase in sea water temperatures. This paper aims to determine the effect of increasing sea water temperature on the performance of steam turbine 1.4 in Muara Tawar Power Plant, which uses sea water as a condenser cooling medium. The intended performance is the output power of the steam turbine, the condenser pressure and the system efficiency. Steam turbine 1.4 has 225 MW installed output power, supplied from 3 HRSG (Heat Recovery Steam Generator).Analysis of the effect of sea water temperature rise on steam turbine performance is carried out by using the cycle-tempo software. The main equipment of steam turbine is modeled in cycle-tempo, then model is validated by comparing with design data. Varies sea water temperature then is inputted on model in order to obtain the output power of steam turbine, condenser pressure and system efficiency. The results show that for every 1˚C increase in condenser cooling water temperature extracted from seawater near the plant, the output power of the plant decreased by about 0.171%, the condenser pressure increased by about 5.146%, and the system efficiency decreased by about 0.168%.

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“…Fossil feedstock cannot be regenerated while biomass exhibits this unique capability, as well as, on behalf of that purpose biomass is supposed natural (Singha & Thakur, 2009;Thakur et al, 2012). That is an example of the essential affinities for biomass being a root of potential or compounds (Fortunato et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Energy production from steam gasification processes and parameters that contemplate in biomass gasifier – A review

Siwal

Zhang

Sun

et al. 2020

Bioresource Technology

108

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The transformation of biomass using steam gasification is a chemical route to facilitate changes in organic or residue supported carbonaceous substances addicted to carbon mono-oxide, hydrogen including carbon-dioxide , etc. However, to commercialize the method of steam gasification, the hurdles persist during the gasification as well as downstream processing. This article delivers a summary of the different approaches that are described in the previous studies to achieve H2 refinement and adaptation within the gasifier system. These include advanced aspects in the research and development of biomass gasification (alike advancements under the gasification operation). The upshot of diverse operating conditions like steam flow rate, operating temperature, moisture content, gasifier agents, residence time, biomass to air, steam to biomass, equivalence ratio, etc. towards the execution of biomass gasifier. This review accomplishes that the interdependence of several issues must be considered in point to optimise the producer gas.

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Thermodynamic model of a downdraft gasifier

Cited by 45 publications

References 49 publications

Hydrogen Rich Product Gas from Air–Steam Gasification of Indian Biomasses with Waste Engine Oil as Binder

Hydrogen Rich Product Gas from Air–Steam Gasification of Indian Biomasses with Waste Engine Oil as Binder

Effect of Increasing Sea Water Temperature on Performance of Steam Turbine of Muara Tawar Power Plant

Energy production from steam gasification processes and parameters that contemplate in biomass gasifier – A review

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