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.
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.
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
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.
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 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
MS Lines, Turbine Casings and rotors and other steam lines including Steam Stop Valves, MSV, CV, ESV heating, Turbine Rolling, Flange and Stud heating, Turbovisory and speeding the turbine to 3000 RPM.
An introduction to the reasons for condensate recovery System, that including energy costing, water charges and water treatment costing and included calculations for potential savings.
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
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.
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 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
MS Lines, Turbine Casings and rotors and other steam lines including Steam Stop Valves, MSV, CV, ESV heating, Turbine Rolling, Flange and Stud heating, Turbovisory and speeding the turbine to 3000 RPM.
An introduction to the reasons for condensate recovery System, that including energy costing, water charges and water treatment costing and included calculations for potential savings.
Claus Sulfur Recovery Tail Gas Applying 100 Million Hours of Operational Time...Ives Equipment
The measurement of H2S/SO2 in Claus sulfur recovery unit (SRU) tail gas has been adequately addressed by UV spectroscopy for over 40 years. Reliability of the analytical principle was established in the first generation of analyzers and in the second generation sample handling was improved to the point where automatic control if not universal is at least considered the norm. With a deep understanding of the process and a population of 1,100 second generation analyzers it was possible in the third generation to address failure modes external to the analyzer. Reliability is not limited to the analyzer / sample system; it extends to the process and contains elements of health and safety. Analyzer professionals are compelled to look beyond what we consider our "deliverables", to address abnormal operations and bad piping design. The paper combines extensive feedback from analyzer professionals and a survey of sulfur recovery operators to address the external failure modes. Looking back on 100 million hours of operational time and one year of field testing the third generation analyzer the paper discusses reliability as viewed by the real end use customer; Operations.
Understanding Condensate Pumps on a Steam Distribution SystemIves Equipment
The primary application for the condensate pump is pumping condensate from a process application or condensate collection area back to the condensate return system. Additional pumping units can be used for increased capacity or pump redundancy in case of failure. Simplex, Duplex, Triplex and Quadraplex condensate pumping systems are available.
A Pump-Trap Combination is used when draining condensate from a single piece of heat transfer equipment whose steam flow is being controlled with a modulating type valve. When a modulating valve controls the flow of steam to a heat exchanger, a stall condition can develop. Stall occurs when the modulating valve closes and steam pressure downstream of the valve is unable to push the condensate into the return line and it backs up into the heat exchanger. A pump-trap combination will eliminate this problem.
Learn what factors influence the compressed air system, why air compressors need servicing, what maintenance plans are available, and how can they help you optimize your compressed air system. Atlas Copco Compressors UK & Ireland offers Customer Support Plans for air compressor maintenance tailored to your specific compressed air installation and budget.
This Presentation is about working principle of Pumps.Basic Presentation regarding pumps , will definitely help beginners to learn pump types , their working , their parts etc.
6 Centrifugal Pump Parts & Their FunctionsSher Thapa
Centrifugal pumps available at - https://www.tradeindia.com/Seller/Industrial-Supplies/Centrifugal-Pumps/
A centrifugal pump is made of hundereds of small parts and components. However, there are some parts that play major roles in the functioning. Those parts are de
Power Plant Regenerative feed heating and design aspects of Feed Heaters.This is a ppt for beginners in Power Plant Engineering.Also discusses Heat Transfer and Rankine cycle.
I have attached this report where we find out the actual reason steam turbine Deaerating Condenser Performance degradation which was written on June 06, 2012.That time I was in Haripur Power Limited (HPL) ,A 360 MW CCPP of Pendekar Energy Bangladesh Ltd.
The report outcome showed that the Steam turbine load could be reached to its maximum capacity after those valve maintenance works on the next Steam Turbine Major inspection on 2013.We hope we can increase our steam turbine load to 5-7 MW/D on that time.
The operational guys were indicating Circulating water pumps (CWP A&B) were not performing to its design capacity & Ejectors/vacuum pumps are not performing well.So,Mechanical Maintenance Team (MMT) team find this successful outcome after several study.
Condenser vacuum condition has improved a lot after maintenance of the valves on last Major Inspection on 2013.
It is a sample report where we can realize that identifying actual reason for an equipment performance is not only a job of operational people but also a responsibility of the maintenance guys.
Power Plant Engineering: Conventional and non-conventional energy resources, Hydro-electric,
Thermal, Nuclear. Wind, Solar [with Block diagram].
Power Producing Devices: Boiler - Water tube and lire tube. Internal combustion engine - Two stroke
and four stroke (Spark ignition and compression ignition). Turbines - Impulse and reaction.
Power Absorbing Devices: Pump - Reciprocating and Centrifugal, Compressor - Single acting, single
stage reciprocating air compressor, Refrigeration - Vapour compression refrigeration process, House
hold refrigerator. Window air conditioner (Working with block diagrams).
CSR and sustainable development innovative possibilitiesRAVI PAL SINGH
We as NTPC technically, sociologically, and environmentally are doing a lot towards attaining sustainability but it is never sufficient and must strive to increase our efforts as well as explore new innovative possibilities.
• Use scenario planning to identify potential risks to your business—and new opportunities to exploit.
• Set ambitious targets and lead by example.
• Tap into employee and locals engagement-both internally, and across business partners.
• Explore other benefits that can be derived from action on sustainability.
• We can show our responsibility not only through our words but our actions.
• CSR is not only a charity but a timid seed which bears the fruit of sustainability.
• This tree bears fruit of sustainability only after a finite period of time.
The demand of power is increasing exponentially results in installation of new stations whereas the sources of water are depreciating acutely. In future there may be a situation in which water sources may not cope up with this requirement.
Also the serious concerns of the regulatory authorities regarding usage of natural resources, definitely the norms will be further be tightened, which will curtail the freedom of usage of water in power plant.
In present scenario land acquisition is one of the toughest hurdles in plant installations which can be averted by locating stations in water scarce regions, by employing air cooled system which eliminates dependencies on water for CW.
Although dry cooling systems are costly technologies on techno-economic considerations, but foreseeing the future it is the need of hour to employ dry cooling system which offers possible solution for power plant installation eliminating the above mentioned challenges.
UiPath Test Automation using UiPath Test Suite series, part 5DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 5. In this session, we will cover CI/CD with devops.
Topics covered:
CI/CD with in UiPath
End-to-end overview of CI/CD pipeline with Azure devops
Speaker:
Lyndsey Byblow, Test Suite Sales Engineer @ UiPath, Inc.
UiPath Test Automation using UiPath Test Suite series, part 6DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 6. In this session, we will cover Test Automation with generative AI and Open AI.
UiPath Test Automation with generative AI and Open AI webinar offers an in-depth exploration of leveraging cutting-edge technologies for test automation within the UiPath platform. Attendees will delve into the integration of generative AI, a test automation solution, with Open AI advanced natural language processing capabilities.
Throughout the session, participants will discover how this synergy empowers testers to automate repetitive tasks, enhance testing accuracy, and expedite the software testing life cycle. Topics covered include the seamless integration process, practical use cases, and the benefits of harnessing AI-driven automation for UiPath testing initiatives. By attending this webinar, testers, and automation professionals can gain valuable insights into harnessing the power of AI to optimize their test automation workflows within the UiPath ecosystem, ultimately driving efficiency and quality in software development processes.
What will you get from this session?
1. Insights into integrating generative AI.
2. Understanding how this integration enhances test automation within the UiPath platform
3. Practical demonstrations
4. Exploration of real-world use cases illustrating the benefits of AI-driven test automation for UiPath
Topics covered:
What is generative AI
Test Automation with generative AI and Open AI.
UiPath integration with generative AI
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Alt. GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using ...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.
zkStudyClub - Reef: Fast Succinct Non-Interactive Zero-Knowledge Regex ProofsAlex Pruden
This paper presents Reef, a system for generating publicly verifiable succinct non-interactive zero-knowledge proofs that a committed document matches or does not match a regular expression. We describe applications such as proving the strength of passwords, the provenance of email despite redactions, the validity of oblivious DNS queries, and the existence of mutations in DNA. Reef supports the Perl Compatible Regular Expression syntax, including wildcards, alternation, ranges, capture groups, Kleene star, negations, and lookarounds. Reef introduces a new type of automata, Skipping Alternating Finite Automata (SAFA), that skips irrelevant parts of a document when producing proofs without undermining soundness, and instantiates SAFA with a lookup argument. Our experimental evaluation confirms that Reef can generate proofs for documents with 32M characters; the proofs are small and cheap to verify (under a second).
Paper: https://eprint.iacr.org/2023/1886
GraphSummit Singapore | The Future of Agility: Supercharging Digital Transfor...Neo4j
Leonard Jayamohan, Partner & Generative AI Lead, Deloitte
This keynote will reveal how Deloitte leverages Neo4j’s graph power for groundbreaking digital twin solutions, achieving a staggering 100x performance boost. Discover the essential role knowledge graphs play in successful generative AI implementations. Plus, get an exclusive look at an innovative Neo4j + Generative AI solution Deloitte is developing in-house.
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/
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
available on those devices, but many of the features provide convenience and capability but sacrifice security. This best practices guide outlines steps the users can take to better protect personal devices and information.
GraphSummit Singapore | The Art of the Possible with Graph - Q2 2024Neo4j
Neha Bajwa, Vice President of Product Marketing, Neo4j
Join us as we explore breakthrough innovations enabled by interconnected data and AI. Discover firsthand how organizations use relationships in data to uncover contextual insights and solve our most pressing challenges – from optimizing supply chains, detecting fraud, and improving customer experiences to accelerating drug discoveries.
Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!SOFTTECHHUB
As the digital landscape continually evolves, operating systems play a critical role in shaping user experiences and productivity. The launch of Nitrux Linux 3.5.0 marks a significant milestone, offering a robust alternative to traditional systems such as Windows 11. This article delves into the essence of Nitrux Linux 3.5.0, exploring its unique features, advantages, and how it stands as a compelling choice for both casual users and tech enthusiasts.
GridMate - End to end testing is a critical piece to ensure quality and avoid...ThomasParaiso2
End to end testing is a critical piece to ensure quality and avoid regressions. In this session, we share our journey building an E2E testing pipeline for GridMate components (LWC and Aura) using Cypress, JSForce, FakerJS…
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
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.
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.
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
Removing Uninteresting Bytes in Software FuzzingAftab Hussain
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
Communications Mining Series - Zero to Hero - Session 1DianaGray10
This session provides introduction to UiPath Communication Mining, importance and platform overview. You will acquire a good understand of the phases in Communication Mining as we go over the platform with you. Topics covered:
• Communication Mining Overview
• Why is it important?
• How can it help today’s business and the benefits
• Phases in Communication Mining
• Demo on Platform overview
• Q/A
6. CONDENSER
• Functions
– Acts as a heat sink to complete the Rankine cycle
– Creates vacuum to provide a favorable back pressure
– Removes non condensable gases
– Serves as a drain receptacle
– Serves as a convenient site for providing feed water makeup
• Specifications
– Number Two nos.
– Each of condenser cooling area 3380 m2
– Quantity of cooling water 15400 m3/Hr. (330C)
– Steam flow 267t/hr
– No. of tubes in each condenser 6800
– Material of Tubes AL brass
7. WHY IMPERATIVE TO PROTECT
VACUUM IN CONDENSER
Sources :
– Condenser vacuum continuously compromised due to air
ingress because of vacuum
– Decomposition of water into hydrogen and oxygen due to
thermal and chemical reactions
Effects:
– Rise in backpressure hampers efficiency and work output
– Blanketing of tubes by non condensable gases further
hampers heat interaction, leading to further
deterioration of vacuum
– Corrosiveness of condensate increases as oxygen content
increases , detrimental especially to the boiler
8. Indicators of degraded performance:
– Degradation of vacuum reading
– Increased DO
– Increased TTD on shell side
– Measured increase in Heat Rate
Sites to check for air ingress:
– Vacuum breaker
– Diaphragm
– Turbine instrumentation lines
– LPHs drains and vents
– Manholes
– CEP seals
– HP flash tank
WHY IMPERATIVE TO PROTECT
VACUUM IN CONDENSER
9. – Increased wetness in last stages of LPT
– Under cooling of condensate causing less effective
regeneration
– APC of additional CW Pumps and CT fans
THE FLIP SIDE OF HIGH VACUUM
10. CEP
• Functions
– Flow in condensate cycle from Hot well to
Deaerator
– CEP discharge gives a provision for the following:
• Exhaust hood spray
• HP/LP bypass valve cooling
• LP bypass spray
• PRDS spray
• HP/LP dozing
11. CEP and Hotwell level
NPSH
• All pumps have a designed NPSH (Net Positive Suction Head) requirement for
their operation
Cavitation
• If the suction head is reduced (due to low hot well level) to a value such that
the net head at suction falls below atmospheric pressure at that temperature,
cavitation , in other words localized boiling of the working liquid is impending
• Localized vapourization occurs and bubbles move through the impeller at near
sonic velocities
• When these bubbles suddenly burst on collision with impeller, severe
vibrations and noise is observed
• Cavitation causes reduced pump capacity, metal removal, reduced flow, loss in
efficiency and noise.
12. CEP EMERGENCIES
–If CEP motor tripped reduce load to maintain deaerator
level, try starting standby CEP.
–If CEP tripped on hot well level low, increase hot well
level by immediately starting all CTP and take CEP in
service one by one.
–If CEP tripped on discharge pressure low (malfunctioning
of CDP-207 /208), manually operate their bypass valves
and take CEP in service one by one.
–If CEP rotating in reverse direction due to passing in NRV,
possible threat of pump seizure, immediately close
discharge valve.
13. SJAE
• An ejector has two inlets: one to
admit the motive fluid, usually
steam and the other to admit the
air to be evacuated or pumped
• Steam when passes through the
nozzle its velocity increases
creating a low pressure region in
the mixing chamber
• Air is sucked into this mixing
chamber because of this low
pressure.
• The mixture so obtained
undergoes increase in pressure as
it progresses through the diffuser
and finally reaches tube bunch
14.
15. SJAE = SAVING IN POWER?
• Better energy conversion in SJAE(low grade
thermal energy) in comparison to vacuum
pumps (higher grade electrical energy).
• Drip formation in the condensing steam,
provides regenerative heat to the condensate.
• Absence of moving mechanical parts in SJAE
eliminates wear and tear of components.
16. CSC & GSC
CSC
Seal steam from last stage of the
labyrinth sealing is utilised for
regenerative heating of the
condensate
GSC
Seal steam from second last stage
of the labyrinth sealing of HP
front, rear and MP front is utilised
for regenerative heating of the
condensate
20. PERFORMANCE OF LP HEATER
Tc1
Tc2
Th1
Th2
T Tc2
Tc1
Th1
Th2
If,
Th1= Steam inlet temperature
Th2= Drip temperature
Tc1= Condensate inlet temperature
Tc2= Condensate outlet temperature
P = Shell pressure of the heater
Tsat= Saturation temperature at shell pressure
ms = Steam flow rate
mc= Condensate flow rate
Then,
TTD = Tsat-Tc2
DCA = Th2-Tc1
21. PERFORMANCE OF LP HEATER
PARAMETER UNIT LPH-1 LPH-2 LPH-3 LPH-4 LPH-5
Bleed steam source
LPT 4th
stage
LPT 3rd
stage
LPT 1st
stage
MP
EXHAUST
MP 10TH
stage
Bleed steam pressure kg/cm2 0.208 0.442 0.959 2.240 5.180
Bleed steam temperature DEG C 60.500 79.000 146.000 219.000 311.000
Condensate flow T/hr 250 250 300 300 300
Condensate inlet
temperature
DEG C 67.000 72.800 114.270
Condensate outlet
temperature
DEG C 95.000 114.270 147.060
Saturation temperature DEG C 60.492 77.808 100.966 126.479 158.032
TTD DEG C 5.966 12.209 10.972
Drip temperature DEG C
DCA
?
? ?
22. LPH EMERGENCIES
• LPH out on drip level high
– Ensure all motorized valves and extraction NRVs
are closed.
– Check all drip valves are open.
– If heater level still rising, suspected tube leakage,
immediately isolate from condensate side.
23. HEATER DRAIN TANK
AND BOOSTER PUMP
• Condensate flow at low power pump
(compared to CEP) to meet the main
condensate flow requirement.
• Direct mixing of high energy drip (compared
to hot well) to condensate flow.
24. STARTUP PROCEDURES
• No PTWs are pending.
• Electrical supplies should be normal.
• CW to condenser charged.
• Suction valves of all CEPs and CBPs are open
• Equalizing valve to CEPs are opened
• Cooling lines of CEP and CBP are charged.
• Vents of LP heaters, HDT and GSC should be opened.
• Hot well level should be normal.
• Close discharge valve of 1st CEP.
• Give start command to 1st CEP and open discharge valve slowly.
• Close all the vents when continuous flow of water is observed.
• Now maintain hot well and deaerator level, if necessary take
successive CEPs in service.
25. SHUTDOWN PROCEDURES
• Ensure all extractions NRVs and motorized
valves are closed.
• Maintain hot well and deaerator level by
running of at least one CEP.
• In case of long shut down open vacuum
breaker and isolate PRDS.