Lead Mechanical Engineer
Saudi Consulting Services
Total years of experience :14 years, 1 Months
As lead engineer I am responsible for Mechanical scopes of Royal Commission projects and my duties include designing Pump Stations, lift stations, Large Diameter Valve Chambers, calcs for pipeline losses calculationsfor Steel Tank's mechanicalaspects and large scale MEP design for Buildings. Preparing responses for Comments & TQs, Cost estimation, Feasibility studies, Man-hour Calculations and ensuring smooth across discipline coordination to produce accurate, well-coordinated aesthetic projects. Trained and experienced in handling BIM using Revit MEP design suite for buildings. My job entails daily interdisciplinary flow of information and coordination.Key projects handled are
Carried out duties as Technical Manager, HVAC. My responsibilities included the review of technical specifications, scope of work and associated documentation for tender costing of HVAC works for Saudi Electricity (SEC), Supervision of complete HVAC Design activities, Preparing HVAC Control philosophy, Equipment selection Installation supervision, participating in the technical design meetings and reviews, Closing of punch list supervising Testing and Commissioning of HVAC system. key projects handled were:
Design of HVAC system of Saudi Electricity Company (SEC) Electrical Substations (18 Numbers): at various locations in Kingdom of Saudi Arabia: The substations consist of Gas Insulated switchgear Hall, Control room, and Battery Room etc. The HVAC scope includes the maintenance of temperature, Indoors air quality, and pressurization within these areas while maintaining the fire integrity of the various protected zones. The systems are designed with 100% redundancy for the main equipment with Integration of the Fire protection system (FM-200) and HVAC system by means integrated building automation systems using Direct Digital controller. The systems designed used Motorized Volume dampers, back draft dampers to achieve system change over and Motorized Fire Smoke Dampers were used to maintain fire integrity for the various FM 200 Protected zones. Gas purging fans were also mounted to flush SF6 gas from the GIS halls and Smoke Removal Fans were used to expel Smoke after FM 200 release.
Carried out responsibilities as HVAC Design Engineer Where key responsibilities included preparation of Complete detailed design for HVAC systems and verification for contractors bills as per site work. key projects handled were:
Design of HVAC system of Tricon Centre, Lahore.A commercial center eighteen (18) story high with five basements. Plant Type: Duel Fuel Direct Fired Absorption Chillers were used with two pipe chilled water-circulating system for the AHUs, which were placed on each floor. Total Cooling Load was 2250 RT.
Technical Study Carried out for Telenor Pakistan LTD for their two MSCs and one Data Center. The study was required to identify the cause of localized hot spots being experienced within the equipment halls and proffer solution to address these anomalies. It included calculating heat dissipation of the equipment and subsequently calculating cooling load requirement for the subject building, analysis of the installed CRAC load with the required load capacity and airflow analysis. The study identified that due to expansion at the MSCs the Cooling load required had increased beyond the capacity of installed CRAC. Other problems that were identified was that some of the Equipment racks were not in Cold aisle/hot aisle arrangement, and the Airflow and static pressure in the raised floor plenum were severely curtailed due to cable cut-outs on the raised floor leading to air leakages and depressurization, Cable dams formed under the raised floor caused certain areas to be stratified of chilled air and subsequent loss of static pressure in the raised floor. The remedial Design to rectify these anomalies included increasing the number of CRAC Units to cater for the increased Cooling requirement, Ducted Return to facilitate return air from hot aisle, and to stop short circuiting of return hot air stream with chilled air stream, partitioning and sealing the raised floor in order to achieve pressurization
Design of HVAC system of Kandhkot Field Gas Compression Station, Jacobabad, Pakistan. A project of
Clough Engineering. The facility consisted of three separate buildings namely Administration Complex, workshop/warehouse building and electrical room. The Admin complex and workshop/ware house, whichwere 100 meters apart, were to be provided Cooling from single source via Chilled/Hot water piping. PlantType: Air Cooled screw chillers using chilled water circulating system with individual AHUs on their respective roofs, while duct mounted electric heaters and humidifiers provided heating and humidity control during winter. The mechanical Workshop was provided ventilation based on number of air changes using roof mounted exhaust fans. The electrical room was provided cooling using roof mounted explosion proof self-contained.
Carried out responsibilities as Plumbing/Fire Protection Design Engineer Where key responsibilities included preparation of Complete detailed design for Plumbing/Fire Protection systems and site supervision .key projects handled were
Strategies and Calculations to avoid / mitigate Surge conditions within Network. Use of Single force Main to accommodate multiple pumps stations.Calculation for Pipe Stresses/force and required Virtual Anchor lengths, bending moments due to valve weight, Buoyancy Calcs for pipeline and air/vacuum Sizing Computation analysis for different scenario i.e. vacuum Sizing for gravity/drain for Air inflow, Air Exhaust (mass Air outflow), Air Release.Conversant with use of topography site survey, site contour maps, Pipeline Profile, Familiar with AWWA
Approx 12 years of extensive experience in design of Infrastructure Utilities, Building Mechanical Services in Middle East, Africa and Asia including review of client’s FEED/BEDD/SDR documentation and technical Specifications, guidelines, &Scope of work, subsequently preparing complete design package including Design Basis Report, Calculations, Drawings, control philosophies forPumping stations &MEP services, MTOs, Project’s Special Specification, Equipment Data Sheets, preparing responses for reviewer’sComments upto IFC stage& handling TQs at construction stage, Verification of contractor's bills, Preperation of Cost for DCNs.Other experience include Cost estimation, & Feasibility studies. Capable of Independently handling projects from Design inception up to handover stage. Capable of working and coordinating across multiple disciplines.
Gas Chlorination System:
Design layout for chlorination building (chlorine drum room, Chlorinator room and Neutalization Area conforming to OSHA requirements. Calculation & selection of capacity for gas chlorinator, Number of Chorine Drums, capcaity of change over devise, and injectors. Calculation for total head required for chlorine metering pump, Chlorine feed pipe size and material, provision of Analysers for continous monitoring and adjustment of chemical feed rate, ventillation and Leak detection. Calcultion for the Blower fans, Volume of Neutralization tower and determination of flow of Caustic Soda required for neutralizing Chlorine leakage and sizing Casutic Soda pumps, flow rate and head.
Potable & Booster Water Pumping Stations
Calculation for losses within the pump Station&NPSHA, Preparing summary of total Pump Head losses within pump station and network loses&, Selecting n umber of Pumps to work in parallel to meet Max Day + Fire at BEP, while ensuring Peak and/or Average Flow conditions are also met by reduced number of pumps. Calculating the size of bypass line required for the protection of Pumps& Piping Network in case of Surge or Water Hammer Loading. Conversant with use of NO or NC valves for network protection, Sizing and spacing Valves and fittings, Developing Pump Room layout for provision of correctly sized overhead crane, forklift circulation, exit and entrance of pump room equipment and accessories. Use of Surge/Containment Vessel for pump & network protection .Well experienced with various type of pumps ranging from Horizontal split case, inline, multistage &submersible pumps with VFDs, Soft Starters and/or constant speed. Selection of MOC for the PumpFamiliar with relevant HI9.6, ANSI/HI 9.8 Std..
Fire Fighting Pumping Stations& FireNetwork: Conversant with design layout of large flow Fire Pump station using NFPA-20& 24 for Fire Pumps and sizing Piping, Selection of Fitting, valves and fitting layout. Pump Head losses calculations.
Industrial/ Sewage Lift Stations
Calculating size of the wet well/ Valve Vault based on the inflow and minimum number of Starts/Stop per hour for the pump. Sizing & designing piping based on recommended velocity, valves and fittings and locating Gauges and instrumentation transmitters. Hatch Sizing, Minimum Submergence, Reservoir storage, Calculating the flow rate/ total dynamic head for the pumps. Selecting pump's type of impeller based on medium to be pumped i.e. open, shrouded, semi shrouded
on the Landside development with ARTEC for Potable, Booster & Fire Fighting water pump stations &Sewage water lift station, Calculation to estimate fire fighting water reserve volume and flow rate required in dedicated network, Piping Layout for supply, overflow, bypass and discharger between tank Farm and Pump Station . MEP services for Electrical and ancillary buildings
Comparative study for cost of Deep
Completed HVAC design of two towers ( each of 5 floors) that had Gyn/obs theatre, Isolation rooms, inpatient room that entailed pressure management ++, + and -ve zone, which was achieved in some locations by VT others by Air flow routing, hygienic type AHUs for the theatre and Plume fans for the isolation rooms were used.
Ras-Al-Khair Industrial City (RIC) Potable Water Tank Farm: Air vent calculations, Pipinglayout between the tanks, Valve chamber detailing.
Ras-Al-Khair Industrial City (RIC) Sewage Water Lift Stations (6 number):- -Royal Commission, Saudi Arabia: Theselift stations were designed for various zones of the RIC Industrial Area the Flows ranged from 457 m3/day to 6, 523 m3/Day
King Faisal Air Force Academy - A project under Ministry of Defense, Saudi Arabia buildings that under my scope were 1 Prince Palace, 6 Educational Buildings, Friday Mosque as well as 2 maintenance Hangars (each is 8 000 Sq m) that are fully air-conditioned. The maintenance hangar have different industrial application requirements from HVAC ranging from hot air from Drying Tower for Parachutes to Industrial Labs that require 100% fresh Air units to Precision units for their Communication/Data Facilities. Total Cooling Load was 850 RT for each Air Hanger.
Design of Plumbing and FP system for the embassy consisting of Embassy, Housing estate and Official residence of