khaled hamza

khaled hamza

Member

Member since
Dec 15, 2010
Last active
Feb 6, 2012
Total activities
0

Activity feed

Recent contributions

  1. #Threads

    Air Ejectors (2 of 3)

    ​[FONT=&quot]Air Ejectors (2 of 3)[/FONT] -An air ejector or steam ejector is a device which uses the motion of moving fluid (Motive...

  2. #Threads

    CONDENSER – AIR EXTRACTION EQUIPMENT ( 1 Of 3 )

    [FONT=&quot]CONDENSER – AIR EXTRACTION EQUIPMENT[/FONT] - Turbines are designed for a particular operating conditions like steam inlet pressure, steam inl...

  3. #Threads

    d07b0aa5-0ddc-4e75-a0b1-fa4c0eafbf67

    ok ishutrope I will explain each object of MFT , to understand the impotance of each one.

  4. #Threads

    Boiler (master fuel trip)

    Steam Generator ( boiler ) is very important equipment at thermal power units , Boiler is the steam supply for the unit...

  5. #Threads

    Pressure Measurement

    [FONT=&quot]Pressure Measurement[/FONT] -A major concern in process control applications is the measurement of fluid pressure. The term fluid means a substa...

  6. #Threads

    Cascade Control Loops

    [FONT=&quot]Cascade Control Loops[/FONT] -The general concept of cascade control is to place one feedback loop inside another. In effect, one takes the...

  7. #Threads

    6ab6419a-118b-474c-9b4b-052bbb1e1be2

    you can use a contactor for switching the motor on or off , and get a level switch ( limit switch )...

  8. #Threads

    On/Off Control

    [FONT=&quot]On/Off Control[/FONT] - Suppose a process operator has the task of holding the temperature, T, near the desired temperature, Td, while making...

  9. #Threads

    General Requirements of a Control System

    [FONT=&quot]General Requirements of a Control System[/FONT] The primary requirement of a control system is that it be reasonably stable. In other words,...

  10. #Threads

    257816f1-97ee-4680-9306-23615b6f456b

    -I am Khaled Hamza , I work at power plant which produce electricity about 350MW -I want to add something to your...

  11. #Threads

    Elements of a Process Control System

    [FONT=&quot]Elements of a Process Control System[/FONT][FONT=&quot][/FONT] INTRODUCTION -The term automatic process control came into wide use when peopl...

  12. #Threads

    Generator Temperature Rise Test

    [FONT=&quot]Generator Temperature Rise Test[/FONT] From a few days, we have made a test on the Generator’s windings (Stator and Rotor), this test...

  13. #Threads

    Turbine Supervisory Instruments

    [FONT=&quot]Turbine Supervisory Instruments[/FONT] The following supervisory instruments are furnished with the unit and are to be observed during start-up,...

  14. #Threads

    de3c8480-ad66-4875-b567-944a5d7709b5

    Utilization Factor In normal operating conditions the power consumption of a load is sometimes less than that indicated as its nominal power...

  15. #Threads

    05c71702-2ea8-4617-84e3-cabdc1464f81

    Welcome , welcome with good star , to forward

  16. #Threads

    Boiler AIR AND FLUE GAS SYSTEM

    [FONT=&quot]Boiler AIR AND FLUE GAS SYSTEM[/FONT] "We talked before about HITACHI Boiler Overview (Steam Generator), we mentioned the characteristics of the b...

  17. #Threads

    16036223-2da1-4f36-aeb1-3276a54e0050

    look , my friend As we said before ,Hydrogen is very dangerous and explosive , if Air % at Hydrogen at a...

  18. #Threads

    347e469f-a84a-4f0e-b4bb-f386867bfa0f

    about the substation Grounding , there is many ways to make earthing. but we should know the principle of grounding , That...

  19. #Threads

    9a5766fe-391f-485b-b674-78e965ee5566

    Mr.Arp Look at the picture above , you can see that the Excitation Cubicle is supplied by the A.C. Voltage Power from...

  20. #Threads

    d0455289-27a5-4db9-bcae-b348d4f1271a

    look Mr.Freak DPR1 , DPR2 --- are abbreviations for "Digital Protection Relay #1 and #2 " It is the relay cubicle which...

  21. #Threads

    212266be-faad-4ee1-9b2a-b77a31b1901b

    You are right , the generator has three phase winding in Star connection , at the center of the three phases ,...

  22. #Threads

    Condensate Polishers at Power Plant

    [FONT=&quot]Condensate Polishers at Power Plant[/FONT] “This article is talking about the functions of Condensate Polishers at Power Plants , and...

  23. #Threads

    Generator Overvoltage Relay (59 G)

    [FONT=&quot]Generator Overvoltage Relay (59 G)[/FONT] Overvoltage shouldn’t occur on a generator fitted with an automatic voltage regulator. Ov...

  24. #Threads

    1f749866-229a-4262-ad7a-73d89c6dfed2

    HELLO FREAK , how are you , now ? i see your inquiries m and i will try to understand you and...

  25. #Threads

    478a88ab-ed23-48cf-91e9-56923a10c60e

    Thank you for your reply , my friend

  26. #Threads

    14812b66-c009-4936-8d19-aeeae54272bf

    I hope my posts benefits you all

  27. #Threads

    Boiler (Steam Generator

    [FONT=&quot]Boiler (Steam Generator)[/FONT] -The boiler for 1,094 t/h MCR is Single Drum Radiant Natural Circulation Boiler “ELPASOâ€&#1...

  28. #Threads

    Generator over Fluxing Relay (24G)

    [FONT=&quot]Generator over Fluxing Relay (24G)[/FONT] -The relay measures the ratio of voltage to frequency (V/Hz) as this ratio is proportional to the...

  29. #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...

  30. #Threads

    917afe50-ecf3-4f12-948b-1e5829c38c04

    nice post , thank you for these info.

  31. #Threads

    Can Your Boiler Feed Pump Handle a Deaerator Pressure Transient?

    [FONT=&quot]Can Your Boiler Feed Pump Handle a Deaerator Pressure Transient?[/FONT] “This is part of an article talking about the importance of DA...

  32. #Threads

    Open Feed Water Heater (Deaerator)

    [FONT=&quot]Open Feed Water Heater (Deaerator)[/FONT] An open feadwater heater , also called direct-contact and deaerating (DA) heater , is one that heats.....

  33. #Threads

    185d99da-4abf-4892-88a9-969f5b4840f0

    thank you aj_onduty, you are so wonderful my friend

  34. #Threads

    6ca81849-d95c-4664-8920-45c458725e7b

    Thank you all , big thanks for all CE members , especially thank for aj_onduty for your contribution, I am so happy...

  35. #Threads

    Hydrogen Explosion ACCIDENT AT U.S. , LESSONS !!!!!

    [FONT=&quot]Lessons Learned from a Hydrogen Explosion[/FONT] “THIS ARTICLE GIVE US LESSONS FROM AN ACCIDENT HAPPENED AT U.S. WITH HYDROGEN EXPLOSIO...

  36. #Threads

    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...

  37. #Threads

    Hello People!! "Khaled Hamza"

    I am Khaled Hamza , I graduated from Cairo university - Faculty of Engineering - Electrical power and machines department , I...

  38. #Threads

    3330a301-7fa9-4fc4-9e49-5adea042338b

    Thank you , I will post my brief introduction about me at CE-introductions !!

  39. #Threads

    Hydrogen !!! THE Best COOLING MEDUIM

    [FONT=&quot]Why Hydrogen Gas is the best cooling medium for rotating machines?[/FONT] [FONT=&quot] [/FONT] [FONT=&quot] [/FONT] #-Link-Snipped-#​ Utilization...

  40. #Threads

    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...

  41. #Threads

    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...

  42. #Threads

    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...

  43. #Threads

    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 , Pow...

  44. #Threads

    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 moni...

  45. #Threads

    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...

  46. #Threads

    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...

  47. #Threads

    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...

  48. #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...

  49. #Threads

    fd11ebd4-f68e-4fac-a90f-b92d2a7ee195

    Can you tell us more about chemical aspects in such this phenomena ?

  50. #Threads

    e5e7502a-721e-464f-9cbe-317bdd8ad1e2

    Thank you so much , for your reply <a href="https://science-hamza.blogspot.com/" target="_blank" rel="nofollow noopener noreferrer">Electricity , Power g...

  51. #Threads

    d913983b-d7d6-469a-b48e-1b977a025a24

    at any time , i hope you really benefit from the article. <a href="https://science-hamza.blogspot.com/" target="_blank" rel="nofollow noopener noreferrer...

  52. #Threads

    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 gene...

  53. #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...

  54. #Threads

    8c8b6917-987a-4856-a8df-1cfcd320c90c

    Sorry , I can't understand the meaning of use the reversed power !!!, how can you want using this power ? I...

  55. #Threads

    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...

  56. #Threads

    Reveres Power Protection., Theory & Setting .

    Reverse Power Protection., Theory & Setting . Reverse Power Protection. #-Link-Snipped-#​ 1- Protection against overspend 32G (# 1). In...

  57. #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=&quot]Cold Start Mode.[/FONT] Swirling...

  58. #Threads

    4b8c270f-30af-4396-9ccc-2d53d5473f0a

    I put the the link , sorry for delay. ​

  59. #Threads

    Power factor fundamentals

    Power Factor is one of the most interested issue at Electrical Power and Distribution. I attached a file describe the power factor...