NDLI: Simulation and Diagnostics of the External and Internal Circulation Flows of Solids in a Biomass Fired CFB Boiler

Please wait, while we are loading the content...

ANES/ASME Joint National Solar Energy Week

ASME Citrus Engineering Symposium

ASME India Oil and Gas Pipeline Conference

ASME International Mechanical Engineering Congress and Exposition

ASME International Pipeline Geotechnical Conference

ASME Power Conference

ASME 2004 Power Conference(POWER2004)

Tube Failure During Startup in a Steam Surface Condenser Installed in a Combined Cycle Plant Operating in Cold Climate

Interrelation Between Mechanical Energy Supply and Flow Rate in Practical Operation of Centrifugal Pump

Improving Condenser Efficiency With Innovative Scale Removal System Technology

Retrofitting Cooling Towers: Estimates Required to Achieve the Next Level of CWA 316(b) Compliance

Steam Generator Replacement Project at TVA’s Sequoyah Unit 1 Nuclear Power Plant

Resolution of Circulating Water Pump Problems Caused by Low River Levels at the Neal North Generating Station

A Simplified Method for Predicting Performance of Power Plants With Hybrid Cooling Systems

Are Your Pumps Operating at Optimum Efficiency?

Multi-Pressure Surface Condenser Performance Evaluation: A Case Study

Common Design Deficiencies in Counterflow Cooling Towers

Maximizing Plant Power Output Using Dry Cooling System

A Model for Thermo-Economic Analysis and Optimization of Steam Power Plants for Power and Cogeneration

The Effect and Remedy of Nozzle Loads on Boiler Feed Pumps

Performance Improvement of a Simple Gas Turbine Power Station Using Pulse Combustion Technology

Reliability Software to Design New Generating Plants

Generator Recovery Project Case Study

Waterwall Quench Crack Inspection Without Cleaning or Scaffolding

Detection of Tube Leaks and Their Location Using Input/Loss Methods

Get Rid of Those Pad Welds and Other Temporary Repairs

The Need for In-Situ Pipe Support Testing

Practical Issues of Combustion Oxygen Measurement Specifically Related to NOx Emissions

Enhancing Plant Start-Up Reliability: Independent Critical Equipment Evaluations

Asset Preservation: Mothballing and Lay-Up

Using Improved Remote Visual Inspection Tools to Reach Intermediate Stages in Turbomachinery

Finally: A Reliable, On-Line Carbon-in-Ash Analyzer

Optimizing Compliance Cost for Coal-Fired Electric Generating Facilities in a Multipollutant Control Environment

Capacity Losses in Nuclear Plants: A Case Study

Cyclone Maintenance Improvement via Special Refractory Anchor Pin Studs

An Improved Analytical Approach to Steam Turbine Heat Transfer

Rotating Effects on Heat Transfer Rate in a Cooling Air Passage of a Gas Turbine Blade

Experimental Investigation and Numerical Simulation of Liquid Droplet Vaporization in a Compression System With Wet Compression

Preoperational Cleaning Requirements for HRSG Units

Design Considerations and Operation of Condenser Bypass Systems in Combined Cycle Power Plants: Part 1

Design Considerations and Operation of Condenser Bypass Systems in Combined Cycle Power Plants: Part 2

Risk Assessment of an L-0 Stage Blade Retrofit

The Planning and Execution of Taiwan’s Largest Combined Cycle Plant

Upgrade and Life Extension of 4 × 110 MW Units: A Case Study

Combined Cycle Plant Performance Monitoring

Introducing the 1S.W501G Single-Shaft Combined-Cycle Reference Power Plant

Power Augmentation of Heavy Duty and Two-Shaft Small and Medium Capacity Combustion Turbines With Application of Humid Air Injection and Dry Air Injection Technologies

A High Performance Optimized Reaction Blade for High Pressure Steam Turbines

Performance Guarantee and Testing of Steam Turbine Retrofits

Metallurgical Assessment of Degradation of a Gas Turbine Bucket Made of Inconel 738LC Alloy After 24000 H in Service

Turbine Blade Fatigue Crack Growth

Due Informative Support for Steam Turbine Operators Keeps Down Detriment From Transients

Rewind and Core Restack of AEP Conesville 5 Generator

Effect of Inlet Air Refrigeration on the Performance of Combined Cycle Power Plants

Thermodynamic Evaluation of Combined Cycle Using Different Methods of Steam Cooling

Generator Performance Plus™ Hydrogen Seal System

Experiences With Stainless Steel Hollow Conductors for Generator Stator Water Cooling

Common Electronic Platform for the Steam Turbine and Generator Controls: Upgrade Installed at the Mt. Poso Cogeneration Power Station — A Case Study

Increasing Steam Turbine Capacity

A New Approach for Investigation of the Turbine Generator Oscillatory Behavior Affecting Power System Quality and Reliability

Mobile Nitrogen Pumper: A Valuable Tool

Simulation and Diagnostics of the External and Internal Circulation Flows of Solids in a Biomass Fired CFB Boiler

Effect of Equivalence Ratio and Burner Geometry on the Characteristics of Laminar Premixed Flames at Moderate Coflow

A Computational Study of the Evaporation Characteristics of an Air-Blast Atomized, Kerosene Spray in Porous Media

Using Virtual Engineering Tools to Reduce NOx Emissions

Theoretical Investigation and Numerical Simulation of Turbulent Combustion in an Industrial Combustor With Combustion Gases Recirculation

Monitoring and Improving Coal-Fired Power Plants Using the Input/Loss Method: Part IV

Infrared Image Processing for Operating Point Control of Gas Turbine Combustor

Underground Coal Gasification for Power Generation: High Efficiency and CO2-Emissions

Slag and Deposit Monitoring at TVA Cumberland

Effect of Swirl and Fuel Pulsation on Flow Dynamics, Flame Structure and Droplet Motion in Swirl-Stabilized Spray Flames

Spectroscopic Analysis of Fuel Lean Flames for Propulsion Applications

Flow Dynamics of Unconfined and Confined Swirl Stabilized Gaseous Flames

Multi-Pollution Removal System Using Oxides of Manganese

ESP Performance Enhancement Analysis by Advanced Modeling Techniques

Computational Modeling of Mercury Control by Sorbent Injection

Temperature and Product Species With Oxygen-Deficient “Air” Fuel Combustion

On the Modeling of Transient Combustion and Heat Transfer Characteristics in Furnaces

Mechanism of the Effect of Dilution With Different Inert Gases on Smoke Point of Propylene Diffusion Flames

ESP Performance Improvement: Flue Gas Conditioning Finally Arrives in India

NOX Control Systems: SCR Bypass Systems — 20,000 MW of Case Studies

Spectroscopic Analysis of Diffusion Flame Using High Temperature Combustion Air

Comparison of Products of Incomplete Combustion of Waste Polystyrene and Styrene in Diffusion Flames and Ethyl Benzene in Fuel-Rich Premixed Flames

Utilization of the MK Combustion Optimization System™ to Maximize Combustion Efficiency in an Environment-First Fashion

The Bioceanic Amazon Corridors: An Opportunity for Development of Sustainable Energy System

Wind Power for Urban Applications

Economical and Environmental Aspects of Heat Pump System Utilizing Unused Energy in Aquarium

R&D On Micro-Gasifier for Power Generation From Solid Wastes

The First Commercial Ocean Thermal Energy Conversion Power Plant: Taking a Renewable Energy Technology Project From Concept to Commercial Operation

What Powers the Chevrolet in 2030?

Improving Coal-Fired Power Plant Performance and Operating Flexibility Today

Comparative Analysis of Advanced H2/Air Cycle Power Plants Based on Different Hydrogen Production Systems From Fossil Fuels

Capturing the Energy of Ocean Waves

Coal Based Methanol for Use in Fuel Cells: Research Needed

Managing New Energy Technology Alternatives for India’s Captive Power Industry

Application of Neural Network in Monitoring an Industrial Plant for a Complex

Minimizing the Impact of SCR Catalyst on Total Generating Cost Through Effective Catalyst Management

Management Challenges in Emerging European Union Eco-Standards

Using CFD to Model Coal Roping Phenomenon in Coal Transport Systems

ASME 2005 Power Conference(POWER2005)

ASME 2006 Power Conference(POWER2006)

ASME 2007 Power Conference(POWER2007)

ASME 2008 Power Conference(POWER2008)

ASME 2009 Power Conference(POWER2009)

ASME 2010 Power Conference(POWER2010)

ASME 2011 Power Conference collocated with JSME ICOPE 2011(POWER2011)

2012 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference(ICONE20-POWER2012)

ASME 2013 Power Conference(POWER2013)

ASME 2014 Power Conference(POWER2014)

ASME 2015 Power Conference collocated with the ASME 2015 9th International Conference on Energy Sustainability, the ASME 2015 13th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2015 Nuclear Forum(POWER2015)

ASME 2016 Power Conference collocated with the ASME 2016 10th International Conference on Energy Sustainability and the ASME 2016 14th International Conference on Fuel Cell Science, Engineering and Technology(POWER2016)

ASME 2017 Power Conference Joint With ICOPE-17 collocated with the ASME 2017 11th International Conference on Energy Sustainability, the ASME 2017 15th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2017 Nuclear Forum(POWER2017-ICOPE-17)

ASME 2018 Power Conference collocated with the ASME 2018 12th International Conference on Energy Sustainability and the ASME 2018 Nuclear Forum(POWER2018)

ASME Turbine Blade Tip Symposium

ASME/IEEE Joint Rail Conference

ASME/JSME Thermal Engineering Joint Conference

ASME/NRC Pump and Valve Symposium

ASME/USCG Workshop on Marine Technology and Standards

CANEUS: MNT for Aerospace Applications

Dynamic Systems and Control Conference

Energy Nanotechnology International Conference

Energy Sustainability

Engineering Systems Design and Analysis

Engineering Technology Conference on Energy

Fluid Power Systems Technology

Fluids Engineering Division Summer Meeting

Frontiers in Biomedical Devices

Gas Turbine India Conference

Global Congress on NanoEngineering for Medicine and Biology

Heat Transfer Summer Conference

High Temperature Reactor Technology

Information Storage and Processing Systems

Integrated Nanosystems: Design, Synthesis, and Applications

Internal Combustion Engine Division Fall Technical Conference

Internal Combustion Engine Division Spring Technical Conference

International Conference on Fluidized Bed Combustion

International Conference on Fuel Cell Science, Engineering and Technology

International Conference on Integration and Commercialization of Micro and Nanosystems

International Conference on Micro/Nanoscale Heat Transfer

International Conference on Nanochannels, Microchannels, and Minichannels

International Conference on Nuclear Engineering

International Conference on Offshore Mechanics and Arctic Engineering

International Conference on Radioactive Waste Management and Environmental Remediation

International Design Engineering Technical Conferences and Computers and Information in Engineering Conference

International Electronic Packaging Technical Conference and Exhibition

International Heat Transfer Conference

International Joint Power Generation Conference

International Joint Tribology Conference

International Manufacturing Science and Engineering Conference

International Pipeline Conference

International Solar Energy Conference

International Symposium on Flexible Automation

Multifunctional Nanocomposites and Nanomaterials International Conference

Noise Control and Acoustics Division Conference

North American Waste-to-Energy Conference

Pressure Technology

Pressure Vessels and Piping Conference

Rail Transportation Division Conference

Small Modular Reactors Symposium

Smart Materials, Adaptive Structures and Intelligent Systems

Summer Bioengineering Conference

Turbo Expo: Power for Land, Sea, and Air

Verification and Validation

Water Quality, Drought, Human Health and Engineering Conference

Wind Energy Symposium

World Conference on Innovative Virtual Reality

World Tribology Congress

Simulation and Diagnostics of the External and Internal Circulation Flows of Solids in a Biomass Fired CFB Boiler

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Ha¨ggsta˚hl, Daniel Bartusch, Catrin Dahlquist, Erik Weng, Shilie
Copyright Year	2004
Abstract	Ash related operational problems are very common in biomass fired boilers. Biomass naturally contains both sodium chloride and potassium chloride and theses compounds lower the melting temperature of the ash which may cause large operational problems with agglomeration and defluidization in Circulating Fluidized Bed (CFB) boilers. The number of biomass fired CFB-boilers for combined heat and power (CHP) production in the Scandinavian market is growing due to their good combustion efficiency, fuel flexibility and low emissions. The power companies are asking for a method to calculate the internal and external circulation flows of solids in the boiler and an accurate diagnostic method to detect initial agglomeration in order to be able to prevent the problem of defluidization that leads to large costs and loss of revenue when the boiler has to be shut down for cleaning. Two heat and mass balance based models have been developed in order to calculate the fuel flow and the internal and external solids circulation flows in a CFB boiler with internal heat exchangers (INTREX). The solids circulation model is divided into three parts: cyclone, combustion and INTREX chambers. Measurements used in the calculation are from commissioning tests on CFB-boiler 5 at Ma¨larEnergi in Va¨stera˚s, Sweden. The boiler was manufactured by Foster Wheeler OY in Finland and has a thermal heat output of 157 MW. The external solids flow at 100% load, with and without air humidification, is 215 kg/s and the internal solids circulation is 93 kg/s. The external solids circulation flow at 60% load is 30 kg/s and the internal solids circulation flow is 486 kg/s. At 60% load, there is no data available for validation, which means that this is more an estimate then a calculation. The calculated internal flow of solids is very sensitive to changes in the total heat flow in the INTREX chamber caused by agglomeration or combustion, whereas the external solids flow is not affected. Hence initial agglomeration and combustion can be detected. A simulated agglomeration in the INTREX chambers by decreasing the total heat flow by 1%, led to a decrease in the internal solids circulation flow by 11%. A simulation of combustion in the INTREX chamber of 0.5 kg/s of fuel entering the chamber corresponds to an increase in the total heat flow of 22% and a decrease in the calculated internal mass flow of 16%. The potential for using this method of diagnostics for detecting initial agglomeration is very promising.
Sponsorship	Power Division
Starting Page	417
Ending Page	424
Page Count	8
File Format	PDF
ISBN	0791841626
DOI	10.1115/POWER2004-52010
Conference Proceedings	ASME 2004 Power Conference
Language	English
Publisher Date	2004-03-30
Publisher Place	Baltimore, Maryland, USA
Access Restriction	Subscribed
Subject Keyword	Temperature Melting Boilers Combustion Biomass Heat exchangers Fuels Combined heat and power Flow (dynamics) Stress Emissions Heat Internal flow Simulation Sodium Solids Agglomeration (materials) Fluidized beds Potassium
Content Type	Text
Resource Type	Article

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in