Download or read book Modelling and Simulation of Biogas Systems Economics written by Shahid A Abbasi and published by APH Publishing. This book was released on 1993 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Flow and Mixing Optimization of an Existing Biogas Plant through CFD Simulation and Velocity Measurements Prepared written by Obada Yaghi and published by GRIN Verlag. This book was released on 2019-04-17 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bachelor Thesis from the year 2016 in the subject Engineering - Mechanical Engineering, grade: 94%, German Jordanian University (hosted by Hamburg University of Technology), language: English, abstract: This research project enables further development and improvement of the mixing efficiency in an existing biogas plant, by utilizing CFD simulation as well as a newly developed flow sensor in addition to supportive laboratory tests. The flow was analyzed considering the following variables: The mixing time, the Dry Matter (DM) content, the positioning of the agitators and how it can be related to the amount of velocity dead-zones. The velocity measurements took place at the biogas plant of the company Ardestorfer Bioenergie GmbH in the district of Buxtehude. The current plant capacity is approximately 1.6 MWel using animals manure, energy crops as well as agricultural residuals. In order to be able to perform the CFD simulation, a complete 3D model had to be done of the examined fermenter and the mixing agitators. Moreover, the current setup including fluid properties, boundary and initial conditions had to be taken into consideration. Velocity measurements were used as a validation approach for the simulation results, furthermore to acquire an overview of the flow behavior over the investigated mixing period. Firstly, it was found that at higher DM content the flow seemed to be more stable, and the velocity values get quite higher at the examined points. Moreover, at higher DM content (9.35% compared with 8.8%) the velocity dead-zones seemed to be approximately 70% less. Secondly, another approach was considered to improve the mixing and to minimize the dead-zones by changing the position of the main agitator. The new scenario showed fewer dead-zones by approximately 65% according to the CFD model. Thirdly, at all scenarios and setups, the flow seemed to reach the maximum possible velocity, and rather motion distribution after 150-180 seconds. Showing no remarkable improvement after this period. The mentioned findings were concluded based on comparisons between different velocity measurements as well as CFD simulation results at different operating conditions and setups. Being able to offer proper recommendations for a better energy efficiency in terms of lower energy consumption and better mixing all over the fermenter.

Download or read book System studies of biogas production written by Emma Lindkvist and published by Linköping University Electronic Press. This book was released on 2020-04-29 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biogas has the potential to be part of the transition towards a more sustainable energy system. Biogas is a renewable energy source and can play an important role in modern waste management systems. Biogas production can also help recirculate nutrients back to farmland. Besides all this, biogas is a locally produced energy source with the potential to increase global resource efficiency, since it can lead to more value and less waste, as well as decreased negative environmental effects. However, biogas production systems are complex, including different substrates, different applications for biogas and digestate, and different technology solutions for digestion, pre-treatment and for upgrading the raw gas. To increase the development of biogas production systems, knowledge sharing is a key factor. To increase this knowledge sharing, comprehensible analysis and comparisons of biogas production systems are necessary. Thus, studies are needed to verify the resource efficiency of biogas production systems from different perspectives. The aim of this thesis is to perform a systems analysis of biogas production systems and to explore how to analyse and compare biogas production systems. An additional aim is to study biogas production systems from a systems perspective, with a focus on environment, energy and economy. Studying biogas production systems from different system levels, as well as from different approaches, is beneficial because it results in deeper knowledge of biogas systems and greater opportunities to identify synergies. Systems studies of biogas are important, since biogas systems are often complex and integrated with other systems. In this thesis, biogas systems analyses are performed at different levels. In the widest system study, classifications of different biogas plants are analysed and classifications in different European countries are compared, with the prospect of paving the way for a new common classification for biogas plants in Europe. Today, classifications vary between countries, and hence comparisons of plants in different countries are difficult. In the narrowest system study, a new methodology for analysing energy demand at different biogas production plants has been developed. The aim was to develop a methodology that is applicable for all kinds of biogas plants with energy inputs. The methodology describes the process of analysing energy demand and allocating energy to sub-processes and unit processes. Further, an approach for assessing the resource efficiency of different treatment options for organic waste was designed. The approach includes environmental, economic and energy perspectives, and was applied to five different regions with several food manufacturing companies. A study of treatment options for organic waste from a single food company was also conducted. The results showed that biogas production is a resource-efficient way to treat waste from the food industry. The approach enables a wider analysis of biogas systems, and the results from the applications show the complexity of assessing resource efficiency. It is also shown that it is important to understand that the resource efficiency of a system is always in relation to the substituted system. In this thesis, three different approaches to analysing biogas production systems are presented: categorization, resource efficiency analysis and energy demand analysis. These approaches all contribute to the understanding of biogas systems and can help, in different ways, to increase knowledge about biogas systems in the world. If knowledge about different biogas systems can be easily disseminated, more of the unused potential of biogas production may be realized, and hence more fossil fuels can be replaced within the energy system. Biogas har potentialen att vara en del av övergången till ett mer hållbart energisystem. Biogas är en förnybar energikälla som kan spela en viktig roll i moderna avfallshanteringssystem. Produktion av biogas kan även hjälpa till att återcirkulera näringsämnen tillbaka till jordbruksmark. Förutom allt detta är biogas en lokalt producerad energikälla med potential att öka resurseffektiviteten i världen, eftersom det kan leda till ökat värde och mindre avfall samt minskade negativa miljöeffekter. Dock är biogasproduktionssystem komplexa, inklusive exempelvis olika substrat, användning för biogasen och rötresterna, olika tekniska lösningar för rötresterna såväl som förbehandling av substrat och uppgradering av rågas. För att öka utvecklingen av biogasproduktionssystem är kunskapsdelning en nyckelfaktor. För att öka kunskapsdelningen är tydliga analyser och jämförelser av biogasproduktionssystem nödvändiga. Därför behövs studier för att verifiera resurseffektiviteten för biogasproduktionssystem från olika perspektiv. Syftet med denna avhandling är att utföra systemanalyser av biogasproduktionssystem och att undersöka hur man analyserar och jämför biogasproduktionssystem. Vidare är syftet också att studera biogasproduktionssystem ur ett systemperspektiv med fokus på miljö, energi och ekonomi. Det är fördelaktigt att studera biogasproduktionssystem på olika systemnivåer och utifrån olika tillvägagångssätt, eftersom kunskapen om biogassystem fördjupas och möjligheterna att hitta synergier ökar. Systemstudier av biogas är viktigt eftersom biogassystem ofta är komplexa och integrerade i andra system. I denna avhandling utförs analyser på olika nivåer av biogassystemen. På den högsta systemnivån analyseras klassificeringar av olika biogasanläggningar. Klassificeringar i olika europeiska länder jämförs, med förhoppningen att bana väg mot en ny, gemensam klassificering för biogasanläggningar i Europa. Idag varierar klassificeringarna mellan länder och därför är jämförelser av anläggningar mellan länder svåra. På den lägsta systemnivån utvecklades en ny metod för analys av energibehov vid olika biogasproduktionsanläggningar. Syftet var att utveckla en metod för alla typer av biogasanläggningar. Metodiken beskriver processen för att analysera energibehov och fördela energin till delprocesser och enhetsprocesser. Vidare utformades en metod för att bedöma resurseffektiviteten hos olika behandlingsalternativ för organiskt avfall. Metoden inkluderar miljö, ekonomi och energi och tillämpades i fem olika regioner med flera livsmedelsindustriföretag. En studie av behandlingsalternativ för organiskt avfall från ett enda livsmedelsföretag genomfördes också. Resultaten visade att biogasproduktion är ett resurseffektivt sätt att behandla avfall från livsmedelsindustrin. Metoden möjliggör en bredare analys av biogassystem och resultaten från tillämpningarna visar komplexiteten i att utvärdera resurseffektiviteten. Det visas också att det är viktigt att förstå att ett systems resurseffektivitet alltid är i förhållande till det substituerade systemet. I denna avhandling presenteras tre olika metoder för analys av biogasproduktionssystem: kategorisering, resurseffektivitetsanalys och energibehovsanalys. Dessa tillvägagångssätt bidrar alla till att förstå biogassystem och kan på olika sätt bidra till att öka kunskapen för biogassystem i världen. Med bra system för att sprida kunskap om olika biogassystem kan mer av den outnyttjade potentialen för biogasproduktion realiseras och därmed kan fler fossila bränslen i energisystemet ersättas, samtidigt som de övriga fördelarna med biogas också kommer samhället till nytta.

Download or read book Biogas written by Meisam Tabatabaei and published by Springer. This book was released on 2018-04-19 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the state of the art in biogas production using anaerobic digestion technology, with an emphasis on waste utilization/valorization. Offering a comprehensive reference guide to biogas production from different waste streams, it covers various aspects of anaerobic digestion technology from the basics, i.e., microbiological aspects to prominent parameters governing biogas production systems, as well as major principles of their operation, analysis, process control, and troubleshooting. Written and edited by internationally recognized experts in the field of biogas production from both academia and industry, it provides in-depth and cutting-edge information on central developments in the field. In addition, it discusses and reviews major issues affecting biogas production, including the type of feedstock, pretreatment techniques, production systems, design and fabrication of biogas plants, as well as biogas purification and upgrading technologies. ‘Biogas: Fundamentals, Process, and Operation’ also addresses the application of advanced environmental and energy evaluation tools including life cycle assessment (LCA), exergy, techno-economics, and modeling techniques. This book is intended for all researchers, practitioners and students who are interested in the current trends and future prospects of biogas production technologies.

Download or read book Dynamic Modeling and Simulation of Biogas Production Based on Anaerobic Digestion of Gelatine Sucrose and Rapeseed Oil written by Anna Schneider and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biogas written by Sunil Kumar and published by IntechOpen. This book was released on 2012-03-14 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains research on the chemistry of each step of biogas generation, along with engineering principles and practices, feasibility of biogas production in processing technologies, especially anaerobic digestion of waste and gas production system, its modeling, kinetics along with other associated aspects, utilization and purification of biogas, economy and energy issues, pipe design for biogas energy, microbiological aspects, phyto-fermentation, biogas plant constructions, assessment of ecological potential, biogas generation from sludge, rheological characterization, etc.

Download or read book Biogas Systems written by K. M. Mital and published by Taylor & Francis. This book was released on 1997 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Book Is Written With Special Focus On Issues Relating To Policies And Strategies For Planning And Implementation Of Biogas Programme. The Book Provides A Detailed Overview Of Biogas Technology Covering All The Facets. It Provides Comprehensive History And Progress Of Biomethanation In Select Countries And Regions Where It Has Made Special Mark. It Provides A Detailed Overview Of Developments In India Covering Historical Perspectives, Biogas Potential, Chronological Progress Of Biomethanation, And Enumerates References Made To Biogas At Important Seminars And Conferences By Eminent Personalities From India And Abroad. It Comprehensively Spells Out Various Implementation Strategies Particularly The Turnkey Approach Which Is Largely Responsible For Bringing Biogas Revolution In India Judging By The Unprecedented Spurt In The Number Of Biogas Plants Installed In Recent Years.It Consolidates The Findings And Recommendations Of Several Socio-Economic Surveys On Biomethanation Undertaken In Past In India From Time To Time. It Presents Case-Studies Of Several Community Biogas Plants Which Have Greatly Helped In Improving The Rural Economy. It Also Provides An Overview Of Energy Needs Of Developing Countries, Reviews Integrated Rural Energy Programme (Irep) And The Urjagram Programmes Of The Union Government As Supportive Programmes For Biomethanation, And Views Biogas Programme As An Instrument Of Sustainable Development. It Discusses At Length The Economics And Cost- Effectiveness Of Biogas Systems.The Book Also Identifies Areas For Further Studies And Looks Forward That Biomethanation Will Scale New Eights Even When The Subsidies Are Completely Withdrawn And Market-Driven Approach Under The New Economic Policy Governs The Biogas Programme. In Short, The Book Covers All Related Aspects Involving Policies, Progress And Prospects Of Biomethanation In India And Abroad.

Download or read book Energy and Environment written by Bilash Kanti Bala and published by Nova Publishers. This book was released on 1998 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies the dynamic behavior of energy and environment systems to aid in energy and environmental policy planning for sustainable development. The author considers modelling of energy and environment with micro and macro level applications fro developing countries using both simulation and optimization techniques. He also presents a plan for integrated rural energy systems to promote sustainable development. Annotation copyrighted by Book News, Inc., Portland, OR

Download or read book Biogas Systems in China written by Bin Chen and published by Springer. This book was released on 2017-09-01 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book derives an explicit analytical pattern (or framework) that permits the examination and optimization of biogas production systems. It provides a concise overview of the current status of biogas and biogas coupled agricultural systems in China, and introduces evaluation methods for energy efficiency, environmental emissions, economic performance and sustainability assessment approaches. Based on empirical studies, it also explores future options for the system development by focusing on emissions mitigation, biogas energy efficiency and system sustainability. Systematic methods of life cycle assessment and thermodynamic analysis may provide new angles for biogas system evaluation. The system discussed is not only a biogas producer, but also a biogas-linked ecological agricultural system, which has the potential to broaden the applicable scopes of renewable energy and eco-agricultural management. The comprehensive, in-depth knowledge and experience presented provide new analytical approaches for researchers in relevant fields and shed light on the construction and operation of emerging anaerobic digestion and biogas industries. This book is a valuable resource for researchers focusing on biogas system modeling, project managers and policymakers.

Download or read book Modeling and Simulation of Anaerobic Mesophilic Digesters in the Production of Biogas at Cluj Napoca Wastewater Treatment Plant written by Alexandrina Zuza and published by . This book was released on 2015 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Process Optimization and Simulation of a Biogas Pilot Plant Using Anaerobic Digestion Model 1 ADM1 in MATLAB Simulink written by Zia-ur-Rehmann and published by . This book was released on 2010 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design and Optimization of Biogas Energy Systems written by Prashant Baredar and published by Academic Press. This book was released on 2020-06-18 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design and Optimization of Biogas Energy Systems presents an overview on planning, implementing, assessing and optimizing biogas systems, from fuel conversion to power generation. The book introduces the fundamental elements of bioenergy systems, highlighting the specificities of biogas systems. It discusses the current state of their adoption at a global level and the challenges faced by designers and operators. Methods for sizing, simulating and modeling are discussed, including prefeasibility analysis, available production processes, integration into hybrid energy systems, and the application of Big Data analysis and game theory concepts. All chapters include real-life examples and exercises to illustrate the topics being covered. The book goes beyond theory to offer practical knowledge of methods to reach solutions to key challenges in the field. This is a valuable resource for researchers, practitioners and graduate students interested in developing smart, reliable and sustainable biogas technologies. Provides an applied approach to biogas systems, from technology fundamentals, to economic and environmental assessment Explores control methods and reliability prediction of each system component, including modeling and simulation with HOMER and MATLAB Discusses the use of Big Data analysis, numerical methods, and Game Theory for plant assessment

Download or read book An analysis of current and future electricity production from biogas in Germany written by Balussou, David and published by KIT Scientific Publishing. This book was released on 2023-05-12 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work a process simulation model identifies the most profitable German biogas plant types and sizes. Small manure and large-scale biowaste plants are currently the most economically attractive installations whereas the valorization of energy crops turns out to be unprofitable. Future developments are assessed with the help of a regional optimization model under constraints. Capacity expansion concerns small-scale manure and biowaste installations rather than plants based on energy crops.

Download or read book Sustainable Intensification of Organic and Low Input Agriculture through Integrated Bioenergy Production written by Benjamin Blumenstein and published by kassel university press GmbH. This book was released on 2017-01-01 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Both global food and energy systems are increasingly faced with major challenges regarding food security and non-fossil energy provision, respectively. Organic or low-input agriculture as well as bioenergy production may contribute to securing rising food and energy needs. However, low-input agricultural systems are challenged for their lower productivity compared to high-input systems. Moreover, bioenergy systems are often criticized for their unsustainable high-input cropping systems. Consequently, innovative approaches are needed to optimize both sectors. A promising strategy may be the integration of organic or low-input agricultural systems with agricultural bioenergy production with the objective to increase both productivity and sustainability of land use systems. This dissertation examines the opportunities and risks of integrated bioenergy production in organic and low-input agricultural systems, based on the example of two bioenergy technologies, anaerobic digestion (AD) and integrated generation of solid fuel and biogas from biomass (IFBB), by assessment of their structural framework conditions, systematic implications, as well as economic and risk performance. In a final step, the role of integrated agricultural bioenergy production within the context of the so-called sustainable intensification is debated.

Download or read book Computer Aided Environmental Management written by S.A. Abbasi and published by Discovery Publishing House. This book was released on 2000 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: An integration of the fascinating stream of computers with an equally fascinating domain of environmental studies has given birth to the new branch of science we call, Computer-aided Environmental Management (CAEM). This book provides us with glimpses of the power CAEM can wield. It gives us insights into the innumerable ways in which CAEM can solve intricate practical problems of environmental pollution in a sophisticated yet inexpensive manner. Contents: COBAS: Cost Benefit Analysis of Anaerobic Digester Systems, Water Quality Modelling: Approaches to Water Pollution Forecasting and Management, Modelling of Buckingham Canal Water Quality, Modelling and Simulation of Heavy Gas Dispersion on the Basis of Modification in Plume Path Theory, Case Study: Modelling and Simulation of Heavy Gases Released by Petrochemical Industries, HAZDIG: A new Software Package for Assessing Accidental Release and Dispersion Characteristics, Attenuation of Gaseous Pollutants by Greenbelts, TORAP A New Tool for Conducting Rapid Risk Assessment in Petroleum Refineries and Petrochemical Industries, Case Study: Application of a New Computer Automated Tool TORAP in Conducting Risk Assessment of a Petrochemical Industry, Models for Domino Effect Analysis in Chemical Process Industries, Studies on the Probabilities are Likely Impacts of Chains of Accident (Domino Effect) in a Fertilizer Industry.

Download or read book Recycling of Solid Waste for Biofuels and Bio chemicals written by Obulisamy Parthiba Karthikeyan and published by Springer. This book was released on 2016-08-10 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the latest advances in and current research perspectives on the field of urban/industrial solid waste recycling for bio-energy and bio-fuel recovery. It chiefly focuses on five main thematic areas, namely bioreactor landfills coupled with energy and nutrient recovery; microbial insights into anaerobic digestion; greenhouse emission assessment; pyrolysis techniques for special waste treatment; and industrial waste stabilization options. In addition, it compiles the results of case studies and solid waste management perspectives from different countries.

Download or read book International Books in Print written by and published by . This book was released on 1998 with total page 1332 pages. Available in PDF, EPUB and Kindle. Book excerpt: