khaled hamza
@khaled-hamza-qmyNzA Member
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Posted #Threads
Air Ejectors (2 of 3)
[FONT="]Air Ejectors (2 of 3)[/FONT] -An air ejector or steam ejector is a device which uses the motion of moving fluid (Motive Fluid) to transport another...
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CONDENSER – AIR EXTRACTION EQUIPMENT ( 1 Of 3 )
[FONT="]CONDENSER – AIR EXTRACTION EQUIPMENT[/FONT] - Turbines are designed for a particular operating conditions like steam inlet pressure, steam inlet temperature and t...
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Boiler (master fuel trip)
Steam Generator ( boiler ) is very important equipment at thermal power units , Boiler is the steam supply for the unit to rotate the turbine's...
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Pressure Measurement
[FONT="]Pressure Measurement[/FONT] -A major concern in process control applications is the measurement of fluid pressure. The term fluid means a substance that can flow; h...
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Cascade Control Loops
[FONT="]Cascade Control Loops[/FONT] -The general concept of cascade control is to place one feedback loop inside another. In effect, one takes the process being controlled...
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On/Off Control
[FONT="]On/Off Control[/FONT] - Suppose a process operator has the task of holding the temperature, T, near the desired temperature, Td, while making sure the tank doesn't....
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General Requirements of a Control System
[FONT="]General Requirements of a Control System[/FONT] The primary requirement of a control system is that it be reasonably stable. In other words, its speed of response.....
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Elements of a Process Control System
[FONT="]Elements of a Process Control System[/FONT][FONT="][/FONT] INTRODUCTION -The term automatic process control came into wide use when people learned to adapt...
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Generator Temperature Rise Test
[FONT="]Generator Temperature Rise Test[/FONT] From a few days, we have made a test on the Generator’s windings (Stator and Rotor), this test accomplish the temperature ris...
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Turbine Supervisory Instruments
[FONT="]Turbine Supervisory Instruments[/FONT] The following supervisory instruments are furnished with the unit and are to be observed during start-up, operation and shutd...
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Boiler AIR AND FLUE GAS SYSTEM
[FONT="]Boiler AIR AND FLUE GAS SYSTEM[/FONT] "We talked before about HITACHI Boiler Overview (Steam Generator), we mentioned the characteristics of the boiler, Parameters of...
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Condensate Polishers at Power Plant
[FONT="]Condensate Polishers at Power Plant[/FONT] “This article is talking about the functions of Condensate Polishers at Power Plants , and Their Types accordi...
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Generator Overvoltage Relay (59 G)
[FONT="]Generator Overvoltage Relay (59 G)[/FONT] Overvoltage shouldn’t occur on a generator fitted with an automatic voltage regulator. Overvoltage may be cau...
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Boiler (Steam Generator
[FONT="]Boiler (Steam Generator)[/FONT] -The boiler for 1,094 t/h MCR is Single Drum Radiant Natural Circulation Boiler “ELPASO” Type which has s...
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Generator over Fluxing Relay (24G)
[FONT="]Generator over Fluxing Relay (24G)[/FONT] -The relay measures the ratio of voltage to frequency (V/Hz) as this ratio is proportional to the flux-density level of t...
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Posted #Threads
Feed water pump hydraulic coupling _video
FEED WATER PUMP HYDRAULIC COUPLING Eighty Percentage 80% of thermal power plants has boiler feed pump , that takes the water from the feedwater system (...
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Can Your Boiler Feed Pump Handle a Deaerator Pressure Transient?
[FONT="]Can Your Boiler Feed Pump Handle a Deaerator Pressure Transient?[/FONT] “This is part of an article talking about the importance of DA and BFP positions at...
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Open Feed Water Heater (Deaerator)
[FONT="]Open Feed Water Heater (Deaerator)[/FONT] An open feadwater heater , also called direct-contact and deaerating (DA) heater , is one that heats the feedwater by dire...
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Hydrogen Explosion ACCIDENT AT U.S. , LESSONS !!!!!
[FONT="]Lessons Learned from a Hydrogen Explosion[/FONT] “THIS ARTICLE GIVE US LESSONS FROM AN ACCIDENT HAPPENED AT U.S. WITH HYDROGEN EXPLOSION,” -O...
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Hydrogen, safety information
Understanding Hydrogen Hydrogen is no more or less dangerous than other flammable materials, including gasoline and natural gas, according to a fact sheet about hydrogen safety...
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Hello People!! "Khaled Hamza"
I am Khaled Hamza , I graduated from Cairo university - Faculty of Engineering - Electrical power and machines department , I am an Electrical Engineer...
15 replies -
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Hydrogen !!! THE Best COOLING MEDUIM
[FONT="]Why Hydrogen Gas is the best cooling medium for rotating machines?[/FONT] [FONT="] [/FONT] [FONT="] [/FONT] #-Link-Snipped-# Utilization of Hydrogen gas as...
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Operation & control of boiler!!
this file i attached contains information about operation and control of all parameters of steam generators (boiler) , i hope it benefits you all. BOILER PLANT...
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Steam turbine & generator arrangement _alastom
this file (.pdf) format , explain the arrangement of steam turbine and generator yard , with all of its components in easy view from , alastom...
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Great file from (ALASTOM) about steam turbine systems.
THIS FILE SHOWS THE DIFFERENT SYSTEMS ABOUT STEAM TURBINE, FROM ALSTOM COMPANY AT ASBUILT PROJECT IN EGYPT. Description of Steam Turbine Systems_ALSTOM <a href="https://www.m...
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Load Rejection Test (Governor Test)
<a href="https://science-hamza.blogspot.com/2010/12/load-rejection-test-governor-test.html" target="_blank" rel="nofollow noopener noreferrer">Electricity , Power generation ,Therm...
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Boiler Control Theory (Feed water Control)
Boiler Control Theory (Feed water Control) The feed water is controlled to keep the drum level . #-Link-Snipped-# Water-level controls continuously monitor the level of wat...
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Advanced Process Controller (APC) {Steam Plants}
"Control of Steam Power Plant is very big job need Care to fulfill the appropriate degree of stability and dependability for such this big system "...
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Generator Stator Earth Fault Relay (64G) - 27TN.
<a href="https://science-hamza.blogspot.com/2010/12/generator-stator-earth-fault-relay-64g.html" target="_blank" rel="nofollow noopener noreferrer">Electricity , Power generation ,...
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Generator Loss of Excitation Relay (40G).
<a href="https://science-hamza.blogspot.com/2010/12/generator-loss-of-excitation-relay-40g.html" target="_blank" rel="nofollow noopener noreferrer">Electricity , Power generation ,...
17 replies -
Posted #Threads
{ boiler and turbine } control modes
Boiler Master (Firing Rate Demand) Boiler Master (basic firing rate demand) computation is dependent on the Current operating mode like Coordinated mode , Boiler Fol...
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Self-Flushing Debris Filter
<a href="https://science-hamza.blogspot.com/2010/12/normal-0-false-false-false.html" target="_blank" rel="nofollow noopener noreferrer">Electricity , Power generation ,Thermal powe...
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Posted #Threads
Condenser Vacuum low reasons
Vacuum low reasons: 1. Check condenser surface area, make sure it is clean (you can do inspection for one room while the other still in service...
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Earthing File from " SCHNIDER ELECTRIC"
Earthing System is very important issue for electrical distribution , so I attached files talking about types of earthing , I hope it benefits you all....
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Reveres Power Protection., Theory & Setting .
Reverse Power Protection., Theory & Setting . Reverse Power Protection. #-Link-Snipped-# 1- Protection against overspend 32G (# 1). In case of Turbine Fail...
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Posted #Threads
Swirling problem at boiler’s start-up
At boiler’s start-up, one should take care of water swirling at boiler’s Drum, especially when you start at [FONT="]Cold Start Mode.[/FONT] Swirling at cold start, makes...
2 replies
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