Turbine Stress Control Logic, Calculation & WorkingTahoor Alam Khan
Turbine Stress Control is one of the complex logics of BHEL turbine. This presentation clearly explains the Logic, working, calculations and influence of the same on operation of steam turbine. For further details and understanding, I can be reached on tahoorkhn03@gmail.com.
Thermal Power Plant Simulator, Cold, warm and Hot rolling of Steam TurbineManohar Tatwawadi
The presentation describes the cold rolling, warm rolling and hot rolling and synchronising of steam turbine. The Temperature Matching Chart for Turbine metal and Steam is also discussed in the presentation
This PPT explains the logic and requirement behind Boiler Loss of Flame Protection under MFT. To know more about Boiler Loss of Flame please connect to tahoorkhn03@gmail.com
The presentation discuss about the operations, causes and remedies for the facing emergencies of steam Turbines. Specially for the 210MW LMW units. The emergencies can be created on simulator and studied on the simulator ACCORDINGLY.
Turbine Stress Control Logic, Calculation & WorkingTahoor Alam Khan
Turbine Stress Control is one of the complex logics of BHEL turbine. This presentation clearly explains the Logic, working, calculations and influence of the same on operation of steam turbine. For further details and understanding, I can be reached on tahoorkhn03@gmail.com.
Thermal Power Plant Simulator, Cold, warm and Hot rolling of Steam TurbineManohar Tatwawadi
The presentation describes the cold rolling, warm rolling and hot rolling and synchronising of steam turbine. The Temperature Matching Chart for Turbine metal and Steam is also discussed in the presentation
This PPT explains the logic and requirement behind Boiler Loss of Flame Protection under MFT. To know more about Boiler Loss of Flame please connect to tahoorkhn03@gmail.com
The presentation discuss about the operations, causes and remedies for the facing emergencies of steam Turbines. Specially for the 210MW LMW units. The emergencies can be created on simulator and studied on the simulator ACCORDINGLY.
The discussion on "Handling of Turbines During Emergencies" has been detailed in the ppt. Some case studies are also discussed in the session where the course participants express their difficulties while coming across the emergencies in handling the turbines at their locations.
Boiler purge is the basic process of resetting boiler before lightup. This presentation explains the logic, schematics & working of purge procedure. For enhanced knowledge of this topic, I can be reached at tahoorkhn03@gmail.com.
The presentation details about the Boiler Operation specifically while lightup of boiler and loading of boiler. the course participants discuss in details about the operations carried in their respective power stations
Boiler Follow Mode: The boiler is divorced from the generation control, which means the steam turbine utilizes stored energy in the boiler to provide immediate load response. The boiler must then change firing rate to bring pressure back to setpoint.
Turbine Follow Mode: Turbine control valves maintain a set pressure while the boiler fires to maintain load. Drawback here is a slower generation response. There are variations with this scheme, in that the turbine control valves can be fully opened at higher loads to minimize the energy penalty associated with the DP loss across them. In that case, it has been called sliding-pressure control, or even cascade control.
Coordinated Control: In general, you provide various logic schemes to move the steam turbine valves for quick load response, as well as fire the boiler for the anticipated energy requirements of the boiler (generally via an energy balance equation).
The discussion on "Handling of Turbines During Emergencies" has been detailed in the ppt. Some case studies are also discussed in the session where the course participants express their difficulties while coming across the emergencies in handling the turbines at their locations.
Boiler purge is the basic process of resetting boiler before lightup. This presentation explains the logic, schematics & working of purge procedure. For enhanced knowledge of this topic, I can be reached at tahoorkhn03@gmail.com.
The presentation details about the Boiler Operation specifically while lightup of boiler and loading of boiler. the course participants discuss in details about the operations carried in their respective power stations
Boiler Follow Mode: The boiler is divorced from the generation control, which means the steam turbine utilizes stored energy in the boiler to provide immediate load response. The boiler must then change firing rate to bring pressure back to setpoint.
Turbine Follow Mode: Turbine control valves maintain a set pressure while the boiler fires to maintain load. Drawback here is a slower generation response. There are variations with this scheme, in that the turbine control valves can be fully opened at higher loads to minimize the energy penalty associated with the DP loss across them. In that case, it has been called sliding-pressure control, or even cascade control.
Coordinated Control: In general, you provide various logic schemes to move the steam turbine valves for quick load response, as well as fire the boiler for the anticipated energy requirements of the boiler (generally via an energy balance equation).
Measuring And Controlling Energy Costs Mike Brumm Brumm Swine Consultancy IncJohn Blue
Measuring and Controlling Energy Costs, Dr. Mike Brumm, Brumm Swine Consultancy, Inc., from the 2009 Iowa Pork Congress, January 28 - 29, Des Moines, Iowa, USA.
Are rising energy costs cutting into your bottom line? Energy efficiency plays an important role in a pork producer's ability to be profitable. Mike will discuss today's energy costs and how they are affecting today's pork producers. He will offer ideas that will help pork producers minimize their energy costs and save significantly on energy bills.
AIChE Smart Stack Damper Design Provides Better Control of Fired HeatersAshutosh Garg
Stack dampers are one of the insignificant yet important component of fired heaters in the refining industry. Over 90% of the heaters in the USA are natural draft and are dependent upon the draft for efficient combustion of fuel gas with air. Stack dampers currently installed are highly oversized and are not able to control draft effectively. Furnace Improvements patent pending design overcomes these limitations and improves the damper control significantly by installing multiple actuators and changing the control characteristics of the dampers.
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
As AI technology is pushing into IT I was wondering myself, as an “infrastructure container kubernetes guy”, how get this fancy AI technology get managed from an infrastructure operational view? Is it possible to apply our lovely cloud native principals as well? What benefit’s both technologies could bring to each other?
Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
"Impact of front-end architecture on development cost", Viktor TurskyiFwdays
I have heard many times that architecture is not important for the front-end. Also, many times I have seen how developers implement features on the front-end just following the standard rules for a framework and think that this is enough to successfully launch the project, and then the project fails. How to prevent this and what approach to choose? I have launched dozens of complex projects and during the talk we will analyze which approaches have worked for me and which have not.
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
2. Safe operation of plant
Lowest cost of generation
Long equipment life
Minimum environmental effects
3. The basic requirements of an interlock
system for a unit shall accomplish the following:
(1) Protect personnel from injury.
(2) Protect equipment from damage.
(3) Protect boiler/turbine/generator operation by
limiting actions to a prescribed operating
sequence or by initiating trip devices when
approaching an out-of-range or unstable operating
condition.
5. Operating safety ,
To prevent uncontrolled fire ,
To prevent implosions and explosions in the
boiler.
6. Less than fireball and loss of 240 V AC any elevation in service.
Drum level very low
Drum level very high
Both ID fan off
Both FD fan off
Air flow is less than 30%
Furnace press VLO
Furnace press VHI
Loss of all fuel trip
Unit flame failure trip
Both emergency PB trip
Reheater protection trip
Loss of 220 V DC more than 2 sec
7. Shut/close main fuel valve (LDO)
Shut/close main fuel valve (HFO)
Trip all running mills
Trip all running P A fans
Trip all running SA fans
Close HPLP bypass( if open)
Turbine trip
Shut/close SH attemp block valve
Shut/close RH attemp block valve
Trip Electrostatic Precipitators (ESP)
Boiler
Fuel
trip
15. Turbine vacuum breaker will open to reduce coasting down
time of turbine :
If Turbine tripped on
1. axial shift tripped,
2. Lube oil press VLO,
3. Fire protection operated,
17. Class A tripping• This trip will operate
when the fault needs to isolate the generator
immediately. • This gives the command to trip
turbine and generator.
Class B tripping – • This trip will operate when
the fault is not serious view of generator or it is
not directly harmful to generator • This gives the
command to trip turbine.
21. Differential protection-87
UT LV side ref protection -64UAT
Overcurrent protection-50/51UAT
Earth fault protection-51NUAT
UAT buchholz relay
UAT PRV trip
UAT oil temp HI
UAT winding temp HI
22. Liquid main leads top max
Cold gas cooler temp A+B more than 55 c deg
Cold gas cooler temp C+D more than 55 c deg
Hot air main exciter more than 85 c deg
23. When generator is connected to the grid system and
power input to turbine is insufficient to drive
generator ,motoring will occur.
Motoring is harmfull to turbine blades if it sustained
for extended period.
This is due to loss of the cooling effect of steam flow
which can result in overheating the last stage blading.
Anti motoring detection include exhaust hood
temperature monitoring and reverse power relay(32G)
with long timer.
24. 1. Reverse power relay ( long timer eg 30 sec ) logic for
anti motoring
( it is a protection of turbine )
2.Reverse power relay (short timer eg 3 sec ) logic for turbine trip to
Generator trip to prevent overspeed of Turbine
Reverse
power relay
32-1
Long
Timer
30 sec
Trip generator and
Field breaker
26. 1. NFPA 85 -Boiler and Combustion Systems
Hazards.
2. IEEE Guide for Protective relay applications to
Power Transformer (IEEE Std C37.91) .
3. IEEE Guide for AC Generator Protection (IEEE Std
C37.102).
27. BOILER TRIP Conditions ,FSSS, master fuel
relay( MFR)
BHEL (T) Boiler ,500 MW
1• Less than fire ball and loss of +24V DC(N) at any elevation in service.
2• Drum level very low for more than 5 seconds.
3• Drum level very high for more than 10 seconds.
4• Both FD Fans off.
5• Both ID Fans off.
6• Air flow is less than 30%
7• Furnace pressure very low.
8• Furnace pressure very high.
9• Loss of all fuel trip
10• Unit flame failure trip
11• Both emergency trip Push Buttons pressed (Operator initiated boiler trip)
12• Loss of reheater protection.
13• Loss of +24V DC(T) for more than 2 seconds
14• All Secondary Air Heaters off.
15• Water wall circulation not correct for more than 5 seconds
16• Boiler feed pumps tripped for more than 10 seconds
28. Turbine Trip
KWU Steam Turbine – 500 MW
1. Turbine overspeed ( hyraulic)
2. Manual trip device (hydrualic)
3. Turbine overspeed (electronic)
4. Axial shift
5. Trip switch optd (Desk)
6. HP exh temp high
7. TG brg temp high
8. Condenser press trip
9. Fire protection trip
10. MOT Level VLO
11. Low MS temp trip
12. Trip command from ATRS
13. Gen electrical protection
14. Gen protection (mech)
15. MFT Relay optd
16. HP casing top-bot diff HI
17. IP Casing top-bot diff HI
18. LP casing top bot diff HI
30. BOILER TRIP Conditions ,FSSS, master fuel relay( MFR)
Doosan Boiler ,660 MW ,Supercritical boiler
1.Both ID Fans Off
2.Both FD Fans Off
3.Unit Air Flow < 30 % TMCR
4.All Feed Water Pumps Are Off For More Than 40 Sec
5. the furnace pressure High / Low for more than 8 sec ( 150 mmwc / -180
mmwc))
6. the furnace pressure High – High / Low - Low ( 250 mmwc / - 250 mmwc)
7.Loss Of Re-heater Protection
8.EPB Pressed
9.All SAPH Off
10.Economizer Inlet Flow Low For More Than 10 Sec
11.Furnace Vertical Wall Temperature High For more than 3 Sec (479 C)
12.SH Pressure High On Both Side
13.SH Temperature High For More Than 20 Sec ( 590 C)
14.RH O/L Temperature High For More Than 20 Sec ( 590 C)
15.Separator Level Low-Low During Wet Mode
16.Separator Level High-High During Wet Mode
17. MFT Relay Tripped
18.Loss Of Fuel Trip
19.Unit Flame Failure Trip
31. Boiler trip -FSSS MFR conditions
-Shanghai electric co ,China- boiler 600 MW
(1) Manually operate MFR
(2) IDF trip
(3) FDF trip
(4) All preheater trip
(5) MCS power loss
(6) Drum water over max.
(7) Boiler light-up failed
(8) Drum water below min.
(9) Boiler pressure excess max limitation (choose two from the three)
(10) Boiler pressure below min limitation (choose two from the three)
(11) Whole furnace loses fuel
(12) Whole furnace loses flame
(13) Loss flame test cooling air (delayed) (choose two from the three)
(14) Air flow below min. value (choose two from the three)
（ 15 ） All boiler water recycle pump trip
（ 16 ） Reheater loses protection.
（ 17 ） All water feed pump trip
（ 18 ） Air flow of economizer inlet is lower than min set value (choose two from the three)
32. Steam Turbine emergency trip conditions ( electric)
Harbin Power Engg Co Ltd –China ;turbine- 600 MW
1. When turbine is over speeding to 3300rpm.
2 .When condenser pressure VHIGH
3 .When axial displacement is more than +1.0mm or less than -1.0mm.
4. When lube oil pressure is as Vlow
5 .HP /LP casing expansion difference reachs to +11.1mm or -5.1mm.
6 .LP casing expansion difference reachs to +27.8mm or -4.3mm.
7. When generator trips.
8. When boiler MFT.
9 .When EH oil pressure is as low
10. DEH is in fault (power off).
11. ETS is in fault (power off).
12 .X or Y bearing vibration of any bearing of #1 ～ 8 is HIGH
13. Stop unit manually by button on standby manual operation panel.
14 .Stop turbine remotely.
15. Local STOP button in turbine hall.
