Hesham Ahmed, Mechanical Field ENGINEER

Hesham Ahmed

Mechanical Field ENGINEER

PARSONS BRINCKERHOFF

Location
Saudi Arabia - Riyadh
Education
Bachelor's degree, BSc Mechanical Engineering
Experience
7 years, 11 Months

Share My Profile

Block User


Work Experience

Total years of experience :7 years, 11 Months

Mechanical Field ENGINEER at PARSONS BRINCKERHOFF
  • Saudi Arabia - Riyadh
  • September 2013 to August 2014

Inspection contractor installalition works associated with( Gas Turbine, HRSG and Gas Turbine Exhaust system ) and verify works compliance to specification & standard QA/QC activities - accepting of erection and installation works- materials acceptance.
-Quality Assurance activities which covered ITP, RFIW, RFIM, Method of Statement & related installation drawing.
-Quality Control activities as per Quality Assurance(Gas Turbine Anchor bolt position and level, Fixator and Sole plate leveling, Drop check, Exhaust Diffuser aligning, Shaft pre alignment, Final alignment & Piping system lube oil flushing.
- line check for gas turbine piping
- Prepare punch list

Senior Mechanical Steam Engineer at NATIONAL ELECTRICITY CORPORATION
  • Sudan - Khartoum
  • September 2006 to July 2013

I Responsible for three major activities imply; Design reviewing, Installation &erection and Testing &commissioning.
Design Reviewing Activities
• Reviews and endorses conceptual designs and Specifications for modification requests.
• Mass & heat balance calculation review for steam cycle in different load capacity (100%, 75%, 50%)
• Revising the steam regeneration cycle arrangement to verify best efficiency using 3HP heater &3 LP heaters.
• Make revision for all P&ID which related to Feed Water system, Cooling Water system, Lube Oil system, Condensate system, and Vacuum system and Control oil system.
• Putting final remarks of Control Concept for normal operation and emergency operation al precaution to get optimization and secure safely equipment operation.
• Alarm Level configuration according to manufacturer and operational philosophy.
• Piping works authentication which imply: • Pipes roots and specifications to reduce head losses.
• Selection of suitable support and well hanger distribution to absorb hydraulic and static forces.
• Pumps selection compatible with pumps characteristic curves and • Evaluates / endorses modification requests involving a wide variety of mechanical systems
• Reviews and endorses tender and contract documents related to
Installation and Erection Activities
• Issued or ratify modification of original design according to the site condition.
• Receiving the equipment with corresponding documents on site and checking its validity.
• Following up the erection and installation of the equipment with erection steps with contractor according to the related drawing and recording measurement for each system as follow: Steam t Turbine activities
Foundation & base plate erection, Anchor bolts location check - Front &back seat, Bearing assembly, Shaft centring, Lower half cylinder installing, Lower half diaghrame installation Upper half cylinder assembly- Gland steam sealing assembly installation-
HP & LP bleed steam piping connection, Main stop valve and its related piping work installation Hp by-pass valve installation
Lube Oil system installation activities
Lube oil tank assembly, Emergency DC oil pump, HP jacking oil pump, Turning Geer assembly, Oil Vapor fans, Oil purifier assembly
Feed Water System
HP multi stage, variable speed pump (Boiler Feed Pumps) installation, HP heaters and their related piping works (quick shut off valves and emergency drain mechanism)HP&HT main stream pipe installation
Condensate System Installation Activities
multi stage pumps, LP heater assembly, LP heater drainage pump-
Vacuum System installation activities
, vacuum pump set, Water sealing tube piping assembly, Vacuum breaker valve
Cooling Water system installation
cooling tower with 6 draft fans, cooling water double suction pumps- Main Condenser Ball Cleaning system
Testing & commissioning
Wittiness and responsible for accepting the result of FAT for Variable Speed Multi stage pumps, Pre-testing acceptance for: Lube oil flow and flashing, Steam turbine governor static, test- Shaft lifting test using jacking oil pumps, Vacuum leakage test - Steam turbine full speed no load test, Steam turbine loading as (cold start, worm start and hot start) procedure, Mechanical & electrical over speed test- Load rejection test at (50%, 75%100%) rated load, Hydraulic test for HP& MP piping system including heat exchangers -Pre online condition monitoring for variable speed multi stag pumps, vacuum pumps and cooling tower fans - Authentication of pumps performance, Final acceptance test: Steam Turbine over speed test, load rejection test- Condition monitoring parameters for steam turbine- Condition monitoring parameters for HP multi stage variable speed pumps.
performance test- Editing steam turbine monthly progress reported to the site manager- Editing steam turbine monthly progress reported to the site manager- Managing 4 junior engineering staff.

Mechanical Commissioning Engineer at National Electricity Corporation
  • to September 2004

25 Sep 2004 -5thSep t2006
Occupation or position held: Mechanical Commissioning Engineer
Name of employer: National Electricity Corporation
Combined Cycle Power Plant
Khartoum North, Khartoum Sudan
(Power Plant consisted of: 410MW, 2 Steam Turbine Engines, 4 Gas Turbine Engines, 4 Heat Recovery Systems, Heat Exchangers, Light Diesel Tanks, LPG Tanks, Fans, Pumps, Valves)
Main activities and responsibilities
• Supervised the start up and shutdown for the units
• Participate in Commissioning of combined cycle (Two gas Turbine+ Two HRSG + one
Steam turbine)
• Gas Turbine performance
• In charge of Gas Turbine commissioning after CI (combustion inspection)
• In charge of Gas Turbine commissioning after HGPI (hot gas path inspection)
• Steam turbine cold &hot start commissioning
• Prepared the daily efficiency report
• Trained the shift staff to obtain the optimum equipment operation condition
• Discovered the defect in any equipment and issued a fault report
• Prepare incident/trip reports and provide recommendations if necessary
• Insured safety maintenance work by fully isolating and edit a permit for work.
• Managed 2 junior engineering staff and 11 operation technicians

20thAug2002- 25thSep2004
Occupation or position held: Mechanical Engineer (Installation and Erection)
Name of employer: National Electricity Corporation
Combined Cycle Power Plant project
Khartoum North, Khartoum Sudan
(Power Plant consisted of: 410MV, 2 Steam Turbine Engines, 4 Gas Turbine Engines, 4 Heat Recovery Systems, Heat Exchangers, Light Diesel Tanks, LPG Tanks, Fans, Pumps, Valves)

Main activities and responsibilities: Installation and Erection Activities
• Issued or ratify modification of original design according to the site condition.
• Receiving the equipment with corresponding documents on site and checking its validity.
• Following up the erection and installation of the equipment with erection steps with contractor according to the related drawing and recording measurement for each system as follow: Steam t Turbine activities
Foundation & base plate erection - Anchor bolts location check - Front &back seat - Bearing assembly - Shaft centering- Lower half cylinder installing- Lower half diaghrame installation using acoustic devise- Upper half cylinder assembly- Gland steam sealing assembly installation- Condenser Neck connection with LP cylinder- Main stop valve and its related piping work installation- Hp by-pass valve installation.
Lube Oil system installation activities
2 Lube oil tank assembly -2 HP Oil pump-2 Emergency DC oil pump -2 HP jacking oil pump-2 Turning Geer assembly-2 Oil Vapor fans- Oil purifier assembly
Cooling Water system installation
2 cooling tower with 6 draft fans- 3 cooling water double suction pumps- Main Condenser- Ball Cleaning system
Testing & commissioning
• Witness Pre-testing for acceptance and write report to the senior Engineer for following item: Lube oil flow and flushing -Steam turbine governor static, test- shaft lifting test using jacking oil pumps- Cooling tower fans running test

Mechanical Steam Turbine Maintenance Engineer at National Electricity Corporation
  • India
  • to May 2000

14 May 2000 - 20thAug2002
Occupation or position held: Mechanical Steam Turbine Maintenance Engineer
Name of employer: National Electricity Corporation
Steam Turbine Maintenance Engineer
Supervisor: Siemens Steam Turbine Engineer
(Power Plant consisted of: (2-30MW and 2-60MW)
Main activities and responsibilities:
• Responsible for executing preventive and forced maintenance for the Steam Turbine and its ancillary plant equipments as follow: -Pumps (Centrifugal-Axial-Screw-HP Multi-Stage) coupling alignment using dial gauges, bearing, impeller, shaft, mechanical seal replacement.
-Cooling tower Fans blades angle adjusting and alignment of fan shafts with gearbox coupling.
-River Side Plant include (dosing pumps-pre-settler tank rotary rack- a complex of pump floating intakes water barge- submersible forwarding pump.
- Dimneralization plant ( Anion- Cation - Mixbed-sand filter)
- Isolation Valves (ball- gloub -gate-pattary flt) and control valve pneumatic& hydraulic shut-off valve
- Steam Turbine lubrication & control oil sys include (AC&DC oil pump-duplex filter-oil purifier - governor set- main stop valve
• Executing major overhaul maintenance for: - Hp multi stage feed water feed water pump (KSB) 246.24t/hr, 134 bar with variable speed hydraulic coupling (VOITH)
- Cooling Water pumps double suction 9132m3/hr, 2.8 bar.
- Vertical & horizontal condensate extraction pumps 214.4m3/hr, 12.8bar.
- Axial flow Intake pumps 280 m3/hr, 2.3bar.
- Submersible Forwarding pumps 360m3/hr, 3bar
- Valves.
- Heat exchangers.
• Prepare all the needed resources such as manpower, tools, spare parts and all the materials and equipments to perform steam turbine major overhaul.
• Carry out all necessary improvement needed in the power plant so as to increase efficiency and reliability of steam turbine and its related ancillary
• Issued Daily & Monthly maintenance report to the Steam Turbine maintenance Manager.

SPECIALIZED TRAINING
No TITLE Name of organization providing PLACE Date

Education

Bachelor's degree, BSc Mechanical Engineering
  • at Khartoum University
  • July 1999

Specialties & Skills

Drawing
Fault Analysis
Design Thinking
Design Review
Maintenance Engineering
ACOUSTIC
ASSEMBLY
COOLING
DRAWING
ENGINEER
HEAT EXCHANGERS

Languages

Arabic
Expert
English
Expert

Memberships

Saudi Engineering Council
  • Attend fourm orgnized by the council
  • September 2013

Training and Certifications

Auto Cad (Training)
Training Institute:
National Electricity Corporation Training Center
Date Attended:
July 2004
Bearings, Selection, Erection& Bearings Maintenance (Training)
Training Institute:
National Electricity Corporation Training Center
Date Attended:
December 2001
Inspection By Ultrasound Testing Methods (Training)
Training Institute:
Weld-Inspecta CO
Date Attended:
August 2008
Advanced Project and Construction Management (Training)
Training Institute:
Ecoman Consultant Training
Date Attended:
May 2008
Gas Turbine and Steam Turbine Operation & Maintenance (Training)
Training Institute:
ESCO Group
Date Attended:
August 2006
PMP Preparatory Course (Training)
Training Institute:
Axon Global Education Network
Date Attended:
May 2011
Pumps Trouble Shooting and Remedies (Training)
Training Institute:
Meric Saudi Arabia Training Center
Date Attended:
January 2005
Gas Turbine and Steam Turbine Operation & Maintenance (Training)
Training Institute:
Nanjing Turbine & Electric Machinery
Date Attended:
August 2002
Vibration Analysis Level I accordance with ISO -18436-2 and BINDT CMGEN appendix D (Training)
Training Institute:
SKF - South Africa
Date Attended:
May 2012
Internal Combustion Engine Overall Maintenance (Training)
Training Institute:
Mechanical Transportation Corporation
Date Attended:
January 1998