John Weeda, Great River Energy - Speaker at the marcus evans Generation Summit 2012 held in San Antonio, TX, delivered his presentation on the topic Operating Experience with Fluidized Bed Coal Dryer at Coal Creek Generating Station
Tests show that olefin plants (steam crackers) can diversify to biorenewable feeds without modifying their facilities or operations. And by doing this, they will help "sequester" CO2 into plastics.
CCS Projects Integration Workshop - London 3Nov11 - TCM - Project IntegrationGlobal CCS Institute
This presentation was given at the Global CCS Institute/CSLF meeting on CCS Project Integration that was held in London on 3 November 2011. The aim of the meeting was to share experiences on CCS project integration; and to identify priority integration topics that need further attention to facilitate CCS project development and deployment.
You can view more presentations from the event at http://www.globalccsinstitute.com/community/blogs/authors/klaasvanalphen/2011/11/25/presentations-global-ccs-institutecslf-meeting-ccs
John Weeda, Great River Energy - Speaker at the marcus evans Generation Summit 2012 held in San Antonio, TX, delivered his presentation on the topic Operating Experience with Fluidized Bed Coal Dryer at Coal Creek Generating Station
Tests show that olefin plants (steam crackers) can diversify to biorenewable feeds without modifying their facilities or operations. And by doing this, they will help "sequester" CO2 into plastics.
CCS Projects Integration Workshop - London 3Nov11 - TCM - Project IntegrationGlobal CCS Institute
This presentation was given at the Global CCS Institute/CSLF meeting on CCS Project Integration that was held in London on 3 November 2011. The aim of the meeting was to share experiences on CCS project integration; and to identify priority integration topics that need further attention to facilitate CCS project development and deployment.
You can view more presentations from the event at http://www.globalccsinstitute.com/community/blogs/authors/klaasvanalphen/2011/11/25/presentations-global-ccs-institutecslf-meeting-ccs
Selection of amine solvents for CO2 capture from natural gas power plant - presentation by Jiafei Zhang in the Natural Gas CCS session at the UKCCSRC Cardiff Biannual Meeting, 10-11 September 2014
Selection of amine solvents for CO2 capture from natural gas power plant - presentation by Jiafei Zhang in the Natural Gas CCS session at the UKCCSRC Cardiff Biannual Meeting, 10-11 September 2014
Evaluation of CO2 Storage Capacity and EOR in the Bakken Shale Oil ReservoirsHamid Lashgari
This paper presents a new perspective in modeling and analyzing efficiency of CO2 and miscible gas injection for potential enhanced oil recovery (EOR) and CO2 storage in shale oil plays. Our major focuses are conceptual and fundamental understanding of the dominant trapping and oil recovery mechanisms behind miscible gas injection. The efficiency of the CO2 Huff-n-Puff process in shale oil production has been widely investigated in recent years because of the ultra-low permeability (1 to 100 µD) of shale oil reservoirs and poor geological connectivity between hydraulic fractured wells. Here we used hydrocarbon fluid properties of a Middle Bakken tight oil reservoir, and considered a wide range of permeability (from 1 to 100µD) and isotherm adsorption properties for CO2 and CH4. A large scale numerical model was set up to simulate and capture the important mechanisms behind various miscible gas injection scenarios.
Simulation results reveal that CO2 adsorption and CH4 desorption along with molecular diffusion of hydrocarbon components are crucial in the presence of organic matter content and pores, however, recycle enriched gas injection demonstrated a high oil recovery compared to miscible CO2 injection. Although CO2 adsorption is large in organic rich shale oil based on literature measurements, CO2 efficiency in enhancing oil recovery is not as much as recycle enriched gas with ethane (C2). However, CO2 trapping may be substantial due to adsorption (5.0% to 10%) and other conventional trapping mechanisms, and the amount of CO2 trapped could be a significant fraction of the total injected amount (25% to 50% considering other trapping mechanisms such as CO¬2 dissolution, residual, and free gas). Simulation results strongly support that CO2 molecular diffusion can assist in the deep penetration of CO2 to touch larger surface area of matrix to become adsorbed, as well as dissolved in other coexisting phases and residual trapping.
Presentation of Jacques Niederberger for the "Workshop Virtual Sugarcane Biorefinery"
Apresentação de Jacques Niederberger realizada no "Workshop Virtual Sugarcane Biorefinery "
Date / Data : Aug 13 - 14th 2009/
13 e 14 de agosto de 2009
Place / Local: ABTLus, Campinas, Brazil
Event Website / Website do evento: http://www.bioetanol.org.br/workshop4
ENERGICO: A Revolutionary Software Design Tool for Gas Turbine Combustor and ...Reaction Design
ENERGICO is a complex system-design simulation tool that works by applying detailed chemistry technology to solve the toughest gas-turbine engineering problems related to emissions reduction and stability. By using ENERGICO to model and test new combustor designs, companies can save millions in gas turbine development costs and substantially reduce time-to-market when compared to traditional physical prototype testing.
content-
Chemistry & Chemical Engineering
History of Catalysis
Catalysis
Recent trends in Catalysis
Future trends in Catalysis
Summary
role-
24% of GDP from Products made using catalysts (Food, Fuels, Clothes, Polymers, Drug, Agro-chemicals)
> 90 % of petro refining & petrochemicals processes use catalysts
90 % of processes & 60 % of products in the chemical industry
> 95% of pollution control technologies
Catalysis in the production/use of alternate fuels (NG,DME, H2, Fuel Cells, biofuels…)
What Are The Immediate Steps To Take When The VW Temperature Light Starts Fla...Import Motorworks
Learn how to respond when the red temperature light flashes in your VW with this presentation. From checking coolant levels to seeking professional help, follow these steps promptly to prevent engine damage and ensure safety on the road.
What Could Cause The Headlights On Your Porsche 911 To Stop WorkingLancer Service
Discover why your Porsche 911 headlights might flicker out unexpectedly. From aging bulbs to electrical gremlins and moisture mishaps, we're delving into the reasons behind the blackout. Stay tuned to illuminate the road ahead and ensure your lights shine bright for safer journeys.
"Trans Failsafe Prog" on your BMW X5 indicates potential transmission issues requiring immediate action. This safety feature activates in response to abnormalities like low fluid levels, leaks, faulty sensors, electrical or mechanical failures, and overheating.
Comprehensive program for Agricultural Finance, the Automotive Sector, and Empowerment . We will define the full scope and provide a detailed two-week plan for identifying strategic partners in each area within Limpopo, including target areas.:
1. Agricultural : Supporting Primary and Secondary Agriculture
• Scope: Provide support solutions to enhance agricultural productivity and sustainability.
• Target Areas: Polokwane, Tzaneen, Thohoyandou, Makhado, and Giyani.
2. Automotive Sector: Partnerships with Mechanics and Panel Beater Shops
• Scope: Develop collaborations with automotive service providers to improve service quality and business operations.
• Target Areas: Polokwane, Lephalale, Mokopane, Phalaborwa, and Bela-Bela.
3. Empowerment : Focusing on Women Empowerment
• Scope: Provide business support support and training to women-owned businesses, promoting economic inclusion.
• Target Areas: Polokwane, Thohoyandou, Musina, Burgersfort, and Louis Trichardt.
We will also prioritize Industrial Economic Zone areas and their priorities.
Sign up on https://profilesmes.online/welcome/
To be eligible:
1. You must have a registered business and operate in Limpopo
2. Generate revenue
3. Sectors : Agriculture ( primary and secondary) and Automative
Women and Youth are encouraged to apply even if you don't fall in those sectors.
5 Warning Signs Your BMW's Intelligent Battery Sensor Needs AttentionBertini's German Motors
IBS monitors and manages your BMW’s battery performance. If it malfunctions, you will have to deal with an array of electrical issues in your vehicle. Recognize warning signs like dimming headlights, frequent battery replacements, and electrical malfunctions to address potential IBS issues promptly.
Your VW's camshaft position sensor is crucial for engine performance. Signs of failure include engine misfires, difficulty starting, stalling at low speeds, reduced fuel efficiency, and the check engine light. Prompt inspection and replacement can prevent further damage and keep your VW running smoothly.
Why Is Your BMW X3 Hood Not Responding To Release CommandsDart Auto
Experiencing difficulty opening your BMW X3's hood? This guide explores potential issues like mechanical obstruction, hood release mechanism failure, electrical problems, and emergency release malfunctions. Troubleshooting tips include basic checks, clearing obstructions, applying pressure, and using the emergency release.
Things to remember while upgrading the brakes of your carjennifermiller8137
Upgrading the brakes of your car? Keep these things in mind before doing so. Additionally, start using an OBD 2 GPS tracker so that you never miss a vehicle maintenance appointment. On top of this, a car GPS tracker will also let you master good driving habits that will let you increase the operational life of your car’s brakes.
𝘼𝙣𝙩𝙞𝙦𝙪𝙚 𝙋𝙡𝙖𝙨𝙩𝙞𝙘 𝙏𝙧𝙖𝙙𝙚𝙧𝙨 𝙞𝙨 𝙫𝙚𝙧𝙮 𝙛𝙖𝙢𝙤𝙪𝙨 𝙛𝙤𝙧 𝙢𝙖𝙣𝙪𝙛𝙖𝙘𝙩𝙪𝙧𝙞𝙣𝙜 𝙩𝙝𝙚𝙞𝙧 𝙥𝙧𝙤𝙙𝙪𝙘𝙩𝙨. 𝙒𝙚 𝙝𝙖𝙫𝙚 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙥𝙡𝙖𝙨𝙩𝙞𝙘 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙪𝙨𝙚𝙙 𝙞𝙣 𝙖𝙪𝙩𝙤𝙢𝙤𝙩𝙞𝙫𝙚 𝙖𝙣𝙙 𝙖𝙪𝙩𝙤 𝙥𝙖𝙧𝙩𝙨 𝙖𝙣𝙙 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙛𝙖𝙢𝙤𝙪𝙨 𝙘𝙤𝙢𝙥𝙖𝙣𝙞𝙚𝙨 𝙗𝙪𝙮 𝙩𝙝𝙚 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙛𝙧𝙤𝙢 𝙪𝙨.
Over the 10 years, we have gained a strong foothold in the market due to our range's high quality, competitive prices, and time-lined delivery schedules.
In this presentation, we have discussed a very important feature of BMW X5 cars… the Comfort Access. Things that can significantly limit its functionality. And things that you can try to restore the functionality of such a convenient feature of your vehicle.
Learn why monitoring your Mercedes' Exhaust Back Pressure (EBP) sensor is crucial. Understand its role in engine performance and emission reduction. Discover five warning signs of EBP sensor failure, from loss of power to increased emissions. Take action promptly to avoid costly repairs and maintain your Mercedes' reliability and efficiency.
The Octavia range embodies the design trend of the Škoda brand: a fusion of
aesthetics, safety and practicality. Whether you see the car as a whole or step
closer and explore its unique features, the Octavia range radiates with the
harmony of functionality and emotion
Fleet management these days is next to impossible without connected vehicle solutions. Why? Well, fleet trackers and accompanying connected vehicle management solutions tend to offer quite a few hard-to-ignore benefits to fleet managers and businesses alike. Let’s check them out!
2. application areas
fuels conventional combustion products
srm suite
biofuels SI mode
automated model development
natural gas CI mode
turbulent combustion – CFD
advanced gasoline / diesel
how srm suite works
emissions advanced combustion CI mode
CO, uHC, CO2, NOx multiple direct injection SI mode
soot mass low temperature combustion
soot size / mass distributions HCCI software coupling
SI “downspeeding” / knock 3D CFD
1D cycle modelling
13. diesel combustion: emissions
where do the emissions
come from?
soot
on-going chemical kinetics
exhaust emissions
•regulated
•non-regulated
NOx
CO/uHCs •particulates
10 deg aTDC
23. SI combustion: emissions
where do the emissions
come from?
soot
chemical kinetics – on-going
computations
gas phase emissions
•regulated
•non-regulated
NOx
CO/uHCs particulates
10 deg aTDC (diesel)
25. gasoline – fuel for advanced diesel engine ?
A 0.537 litre single cylinder diesel engine with a compression ratio of 15.8:1 operated
using an 84 RON gasoline fuel.
Bosch injectors were adopted with seven holes of 0.13mm diameter. Single injection
SOI =-11.2 CAD aTDC, Triple injections a) 25% SOI @ -180 CAD aTDC, b) 15% @ - 76
CAD aTDC and main @ -7 CAD aTDC.
29. emissions: uHCs and NOx
Euro V, NOx = 2000 mg/kWh
Multiple steady state operating points
Euro V = 0.46 g/kWh
Scania turbocharged truck engine
30. emissions: system level soot model
system level soot model
– a fast solution for soot mass predictions
THE CHALLENGE
Predict soot emissions from typical diesel engine
THE SOLUTION
Optimise “Soot system level model” parameters from diesel engine DOE database
Use optimised parameters for predicting results
31. emissions: system level soot model
0.2
Experiment
Model
example of model performance
0.16
Soot concentration [g/kW-hr]
0.12
0.08
0.04
0
1 2 3 4 5 6 7 8 9 10
Operating Point
49. real-time (RT) transient simulation
• Collaboration with
M. Sjöberg, J. Dec
• Studies of transient engine
operation, control, DOE, and
optimization involve simulations
over many cycles
• Problem: Computational
expense (1-2 hrs per cycle)
• Solution: Storage/retrieval
• Incorporate tabulation as
external cylinder model into
GT-Power
51. Load transients - RT
• Imposed equivalence
ratio profile
• PID controller changes
fuel composition
(octane number) such
that…
• … ignition timing
(CA50) is held at a
given set point.
52. transient RT: emissions
• Since SRM accounts for
inhomogeneities, turbulent
mixing, and detailed
chemical kinetics, can look
at…
• maximum pressure rise
rates,
• and emissions (e.g.)
misfire cycle
55. chemical kinetics and fuel modelling
“The implementation of detailed chemical kinetics is critical in
expanding the predictive capabilities of reactive flow modelling”
chemical fuel models
practical fuel modelling
emissions chemistry and validation
fuel models in srm suite: applications
58. conventional and futuristic fuels
we have chemical fuel models for
Surrogate chemical kinetic models can be generated based on the Research Octane Number (RON)
and Motor Octane Numbers (MON) of the desired fuel
biofuels
Detailed fuel models of conventional practical fuels such as gasoline and diesel
Reference fuels such as iso-octane, n-heptane, toluene, n-decane
Hydrogen, CNG, ethanol, methanol, bio-diesel
Future fuels and blended fuels such as dieseline, M85 and E85.
Conventional mechanism development for hydrocarbons and inorganic chemistry such as titania, iron
and silver chemistry.
60. practical fuel modelling
(a) Research Octane Number (RON) (b) Octane "Sensitivity" (RON – MON)
Tri-component surrogate fuels increase the robustness of practical fuel
modelling as fuel sensitivity can also be simulated
Conventional fuels
fuel blends
practical gasoline
ethanol/gasoline blending
biofuels & future fuels
61. practical fuel modelling: validation
Case 711 - Experiment (Surr. B) 100
Case 711 - Model (Surr. B) - 100pt
Case 710 - Experiment (Surr. A)
80
Case 710 - Model (Surr. A) - 100pt
Pressure [bar]
60
40
20
0
-40 -20 0 20 40
Crank Angle [deg. ]
validation of tri-component surrogate blends detailed modelling of practical fuels
range of engines 98.5RON/88MON gasoline
operating points Gasoline/ethanol blends
62. practical fuel modelling: application
Simulation of HCCI peak operating limit using SRM for fuel with/without octane sensitivity
64. soot precursors and validation
C10H8 C10H7 Na-Na
9.0E-2 8.0E-5 1.6E-5
6.0E-5 1.2E-5
6.0E-2
4.0E-5 8.0E-6
3.0E-2
2.0E-5 4.0E-6
Mole Fraction
0.0E+0 0.0E+0 0.0E+0
0 0.3 0.6 0.9 1.2 0 0.4 0.8 1.2 1.6 0 0.5 1 1.5
Perylene Benzo(ghi)Perylene Coronene
2.5E-6 6.0E-6 1.0E-5
2.0E-6 8.0E-6
4.0E-6
1.5E-6 6.0E-6
1.0E-6 4.0E-6
2.0E-6
5.0E-7 2.0E-6
0.0E+0 0.0E+0 0.0E+0
0 0.5 1 1.5 0 0.5 1 1.5 0 0.5 1 1.5
Height Above Burner (cm)
soot chemistry includes a variety of unsaturated HCs and PAHs
interaction of soot chemistry with the gas phase chemistry
validation carried out in fuel-rich flame and engine experiments
65. PAH reaction steps
Armchair ring growth 5-member ring desorption 6-member ring desorption
Free edge growth 5-member ring conversion at AC
5-member ring addition 6- to 5-member ring conversion
5-member ring free edge desorption
Oxidation steps: rates from
quantum chemistry
66. quantum calculations to reaction rates
electronic energy
geometry optimisation
rotational constants
vibrational frequencies
temperature variation of Cp, H, and S
transition state theory
kbT QTST
k (T ) exp( Eact / kbT )
h QAQB