Mziyanda Nkwenkwezi

Site - Koeberg Nuclear Power Plant

Site based subcontractor Management: -
- Scope of Work clarification.
- Review of the Quality Documentation (ITPs, QCPs, & Method statements).
- Safety File review and PTW liaison.
Commissioning Documentation: -
- Review of the Commissioning Test Reports.
- Sourcing of the Commissioning equipment and tools for testing.
- Evaluation of the Test Procedures for the Tests to be executed.
- Alignment of engineering drawings with the test procedures for the plant.
- Review of the close out Construction Documentation (COC, CSC, Punch-list, Defects.)
Stakeholder Engagement: -
- Engagement with Eskom’s commissioning team for plant permits.
- Updating engineering teams and clarifying the step-by-step of the test procedures to be carried out.
- Communicating with the technical subcontractors for pre-commissioning requirements.
- Reporting on daily morning meetings to client and senior management.
- Developing of the weekly and monthly reports.

Cold Commissioning: -
- Verification of the calibration certificates for commissioning equipment and tools.
- Erection of the working platforms (scaffolding).
- Installation of the testing equipment on the plant for measuring purpose.
- Software verification as per test settings and communication probes.

Hot Commissioning: -
- Readiness review of the teams (Safety, support (subcontractors), Client - Commissioning, Operations Dept., and Inspection & Test Dept.
- PTW preparation (Client), PTW - Arabelle, POWRA.
- On site Test Procedure for data gathering.
- Plant mode readiness for testing.
- Monitoring of systems under testing.
- Transients monitoring.
- Performance of the Tests as per procedure stipulation.
- Safe mode return of the plant (SSC - Steady State Conditions).
- PTW closure.
- Synthesis of the first edition results.
- Review and approval of the results by client.
- Compilation of the Test Report.
- Final Submission of the Commissioning Test Reports and signing handover.
- Issuing and approval of the Commissioning Certificate of Completion.

Defects from SGR installation: -
- Engineering Change Management for defective instrumentation and equipment.
- Mechanical repair of pipe support systems.
- Completion of SOW from previous outages.

Sites - Projects
- Zondagsfontein - Ventilation shaft (Upcast and Downcast shafts)
- Thubelisha South - Ventilation shaft (Upcast and Downcast shafts)
- Thubelisha West - Ventilation shaft (Upcast shaft)
- Irenedale Mine - (Surface and underground water pumping system)

Scope Of Work: -
SOW development for the bidding stage preparation in the following areas:
- Road construction
- Cementation
- Shaft collar construction.
- Raise boring.
- Substation design & construction
- Overhead lines design & construction
- Ventilation Fans Construction
Project Management: -
- Technical Review of the project phases prior the procurement process.
- Capital Application presentation at EXCO.
- Project management from Gate -3 to Gate - 6.
- Payment Certificate evaluation with Quantity Surveyor.
- Commercial dispute resolution of contractor’s claim.
- Addressing of the early warnings.
- Monthly Project Progress Presentation to Steering Committee.
- Holding bid clarification meetings for the bidders.
- Evaluation and approval of payment certificate for contractors.
- Engagement of design companies for detailed design.
Procurement and Commercial Strategy: -
- Package review for sourcing.
- Evaluation of the existing service providers for sourcing strategy.
- Cost distribution as per package.
- Execution planning.
- Bidding and selection of preferred bidder/ service provider.
- Quotation analysis with Quantity Surveyor and Commercial Officer.
- Evaluation of invoices.
- Verification and validation of Payment Certificates before payment processing.
Service Provider Onboarding: -
- Safety file final review.
- Setting up of Kick-off meetings for service providers.
- Badging stuff for site access.
- Allocation of site space for offices.
- Mine briefing for on-boarded service provider.
Construction Work: -
- Site establishment of the main service providers and subcontractors.
- Equipment inspection as per mine, health, and safety act 29of 1996.
- Monitoring and surveillance of construction activities with alignment to Daily Diaries, QCPs, ITPs and QA control measures set for project compliance.
- Technical interpretation of drawings, and other engineering documentation for clarity on implementation.
- Oversight function of legal appointments and PTWs.
- Running of daily construction integration meetings.
- Putting together elements of the Construction Service Certificate for work completion.
- Punch list developing and addressing the items from as per category of safety.
Stakeholder Management: -
- Appointment of Community Liaison Officer.
- Appointment of Environmental Liaison Officer.
- Community engagement through Sasol Stakeholder Management.
- Employment of community personnel through Service provider’s engagement as Social Community Responsibility (SCR).

Commissioning Documents Development: -
- Development of Commissioning Execution Plant
- Review of the Test Procedures.
- Review of the ITPLs and QCPs.
- Review of the Deign Documents as per assigned work packages.
- Development of Synthesis results of the Test Procedure.
- Amendment of the TP with the comments from the synthesis of results.

Commissioning Readiness Preparation: -
- Review and signing of the Construction documents.
- Engagement of the stakeholders.
- PTW applications.
- Procuring of the Commissioning Testing Tools.
- Development and Compilation of the Test Procedures.
- Development and Compilation of RAMS (Risk Management for all the tests to be performed.
- Resource management and supporting teams.
- Integration of Construction work plan to Commissioning plan (Construction Service Certificate) and punch list

Cold & Hot Commissioning: -
- Plant instrumentation testing.
- Installation of probes and measuring devices.
- Plant state readiness for testing as per TP.
- Execution of the test procedures as TP and QCP requirements.
- Addressing of the changes in the test procedure.
- Review and submittal of TP to the client.
- Submittal of the Commissioning close out documentation.
- Overseeing Construction/ Commissioning Operations Plant Modification for Steam Generator Replacement at Koeberg NPS.
- Plant preparation to Performance of Cold commissioning.
- Addressing of transients of mechanical installed equipment, Electrical and C&I equipment.
- Lining of the Process Systems to perform Hot Commissioning.

Consultant - Training and Technical Advisory
- Conduct and facilitate Demineralization Water Training for Operators and artisans of the plant. (NQF Level 4)
- Develop a Gap Analysis for Demin Water Plant, and proposal for technical solutions of the aging plant.
- Conduct and facilitate Training on Statistics, Probabilities, and Mathematics (NQF Level 4) for Operators and artisans.
- Development of a Gap Analysis Advisory Document for Demin. Water treatment Plant Engineering Challenges

• Driving project milestones on Mechanical Installation, C&I, and Electrical
Installations, Insulation & Cladding, Chemical Cleaning, FFO, FFC, and
Synchronization.
• Interacting with contractors on strategy to better manage project components that
are behind.
• Initiating commercial processes when contractor deviates from the agreed
timelines.
• Managing daily meeting to see progress and stipulate way-forward.
• I managed service providers/contractors on piping, pinning, substructure welding,
insulation and cladding to achieve FFO, FFC and Synchronization of the
following: - Boiler Walls, Draught Group, Mill Plant, PJFF plant, Pulverized Fuel
Piping, Hot Gas Ducting, High Pressure piping, Atomizing Steam piping, Air
heaters and associated ducting.
◦ Project
Management
(PRIMAVERA,
MS Project,
PMBOK)
◦ FIDIC
◦ NEC
◦ Commissioning
◦ PTW
◦ Outage
Management
◦ Equipment
Installation
• I coordinated Plant Walks, in relation to OHS Act requirements, inspections, Verification &
Validation of work

REGIONAL PROJECT MANAGER -
- Management of Socio - Economic leg of the Maintenance program for Department of Health facilities, ranging from Hospitals & Clinics.
- Client’s meeting, engaging on level of complaints and formulate solution strategies forum.
- Formulating and implementation of Program & Stakeholder Management Operations in the OR Tambo and Alfred Nzo municipality regions
- Mobilization of stakeholders from community leadership, Health facility Management, Service Provider to ensure synergy in requirements as per DoH policy and employment.
- Engage with SMMEs & Contractor and incorporating in the program of the project as per National Treasury Preferential Procurement Regulations Act.
- Conflict resolution that arises between community, facility, and contractor.
- Management of Social Facilitators in discharging of their duties.
- Engagement of the client (DoH) for issues on site and their resolutions.

SNR STATISTICS & EFFICIENCY ENGINEER -
- Management of the Efficiency and Production Planning Operations for both Power Generation and Desalination Water for Riyadh supply.
- Liaising with international supplier for purpose of achieving on time delivery based on lead time orders for meeting project deadlines.
- Training of engineers on ISO standards, governance, and plant operational compliance.
- Formulation of KPIs for subordinates.
- Implementation of Process Efficiency for the Sea Water Desal. Plant and Combined Cycle Power Plant
- Lead role to formulate and gather data for Plant efficiency from the Combined cycle gas turbine, HRSG - (Heat Recovery Steam Generator)
- Use of AVEVA, Aspen and HYSIS software modelling packages for design improvement, process efficiency and process improvements.
- Management and supervision of DOOSAN, SIEMENS. SEPCO and POYRY.
- Plant Performance analysis for to determine the suitable interval of long term shutdowns and short term shutdowns.
- Cycle efficiency for the RO plant and MSF plant.

SYSTEM INTEGRATION ENGINEER -
- Develop, compile, and review the Operating & Control Philosophy & Operating Test Specification Documents for Draught Group for the Boiler Plant Systems: Combustion Air System, Primary Air System, Flue Gas System, Steam Air Heater, Gas Air Heater, Dampers and Flue Gas Desulfurization (FGD).

- Develop, compile, and review the Operating & Control Philosophy & Operating Test Specification Documents for Water Treatment Plant: Wastewater Treatment Plant, Demineralization Water Treatment Plant, Raw Water Plant, Potable Water Plant, Drains, Sewage Plant, and Chemical Dosing Plant.

• Directly reporting to Power Station Manager on Quality Engineering issues
during Outages, shutdowns, and Project management.
• Develop and manage Quality Engineering Operations for the Power
Station and compliance to Engineering, QC & QA standards.
• Evaluate supplier documentation specifically on scoring of Quality
requirements for commercial purposes.
• Inputs contribution on budgets for CAPEX and OPEX for financial year
submission.
• Conflict resolution in terms of HR and IR in relation to Labour Act.
• Resolution of dispute with contractors based on project overrun, which
related to contractual agreements.
• Conduct disciplinary, following Labour law act and company regulations and
come up with amicable solution
• Supplier evaluation on their sites, for purpose of achieving compliance.
• Review of the Scope of Work for the implementation of maintenance outage
program for units at T-24, T-12, and T-6. (NB! - T is for the time in months)
on basis of NEC
• Reviewing of ITPs (Inspection Test Plans) for the welding to take place on
the statutory equipment (i.e., Boilers)
• Developing of PQPs, ITPs and create a baseline for the Quality Project
planning.
• Boiler Plant - Review of Scope of Work for the repair, welding of the tubing,
for the Economizer, Primary NEC Project PRIMAVERA
◦ Financial
Management
◦ Outage
Management
◦ Project
Management
◦ PMBOK
◦ STATUTORY

Pebble Bed Modular Reactor Project

Testing, Qualification & Commissioning Engineer (PBMR)
Sites
• Pelindaba (NECSA) HTF
• North West University (HTTF and HPTF)
- Reviewing of the Testing, Qualification & Commissioning (TQC) documentations that will feed chapter 14 on Safety Analysis Design Report (SAR).
- Compilation of the Test Procedures (TPs) for Testing, Commissioning & Qualification of the Graphite Material for triso-sphere shielding of the nuclear fuel kernels
- Performance of the temperature profile and pressure profile boundary testing of the graphite sphere, using non-nuclear heating and pressurization (HTTF & HPTF) facilities.
- Compilation of Test Report and form part of Evaluating Forums and Qualification with PBMR.
- Review of the SAR (Safety Analysis Report) chapter of Commissioning for the PBMR.
- Performance of Test for Commissioning of the Helium Testing Facility for verification and validation of valve block system for helium leakage rate.
- Leak testing of the welds of the piping system.
- Use of Process modelling for FEA (Finite Element Analysis) and use of Aspen for process capability optimization from the SSC strategy.
- Validating and verification of experimental test reports form the equipment tested at the facility for their performance at high temperature and high pressure.
- Validating and verification of experimental test reports form the equipment tested at the facility for their performance at high temperature and high pressure.
- Coordination of site visits to the HTTF (High Temperature Testing Facility) and HPTF (High Pressure Testing Facility)
- Review of Key Licensing Issues of PBMR SSC’s (Systems, Structures, Components)

Koeberg Nuclear Power Station - Reliability Engineer (KNPS)

- Developer of the Maintenance Basis (MB) for the Reliability Cantered Maintenance of the PWR (Pressurized Water Reactor) on the Reactor Component Cooling System (RRI), Conventional Cooling System (SRI), Turbine Bypass System (GCT) and (GCA).
- Development of the System Description, Functional Analysis (FA), Functional Failure (RRI, SRI, GCT and GCA)
- Development of FMEA, Task Analysis and Operating Test Specification for the system (RRI, SRI, GCT and GCA)
- Nuclear Island Project Co-coordinator during Outages of Unit 1 and 2.
- Form part of evaluation team for the RCM of each system responsible for (RRI, SRI, GCT and GCA)

• Research on phosphate pipeline from Palaborwa to Richards Bay.
◦ Perform feasibility study on technical justification of the project.
◦ Perform financial feasibility of the project.
Engineering Process Support to: Phosphoric plant, Sulphuric Acid Plant and
Granular Fertilizer Plant.
• Technical support function for the Phosphoric Acid plant in terms of production
variables controls.
• Performing of pump, valves, and heat exchanger surveys for the P2O5 plant.
• Perform pipe, pump, valves, and tank sizing using simulation packages (SAMCO
pumps)
• Member of the production morning meeting to report and access plant status from
previous day.
• Perform Energy & Material Balances for improvement and critical analysis of plant
performance
• Review and develop of old P&IDs, PDs, and BFDs of the plant.
• Material balance of chemical additives i.e., Zink (Zn), Ammonia (NH 3) for a quality
product of MAP & DAP Zinc fertilizer.
• Balance of consistency of dryness in the finished product
• Inputs contribution on budgets for CAPEX and OPEX for financial year
submission.
• Toolbox talk every morning prior job activity.
• Conflict resolution within the confines of Human Resources and Labour Relations. Plant

- Development of PFD, P&ID for the Paper Machine and Water Reticulation Plants.
- Generation of data for the consumption of chemical, utilities via spreadsheet and use analysis using SPC’s.
- Involved in Risk Assessments and HAZOP studies.
- Perform process improvement for the Water Reticulation plant equipment (Clarifiers, Dissolved Air Flotation Cell, Centrifuges and Compactor) for the purpose of dewatering of the solid waste.
- Monitoring of dissolved solids and suspended solids in the effluent to give advised to Paper Machine process variation.
- Trial run for chemical additives like starch grades for the fiber strength for paper bonding during forming.
- Flocculent dosing for the better flotation of fiber removal in the Dissolved Air Flotation (DAF) cell.
- Trails run for the dewatering equipment of suspended and dissolved solids, i.e., Membrane filter, Belt wire filter (SALNES).
- Forecast of the weekly wastewater &solid waste specification with respect to production demands.
- Maintaining and improving of the water chemistry quality (COD’s, BOD’s, TSS, TDS)

• Procedural commissioning of major equipment, like waste heat boiler, heat
exchangers, distillation columns, and oil-fired furnaces, gas scrubbers,
single stage pumps, multi-stage blowers, FCCU reactor and regenerator,
Crude Plant (CDU), GCU, DHT, Viscosity Breaking Unit (VBU),
• Cold start-up of process units after minor and major shutdowns. Undertake
Process equipment audits and compile reports on deviation of the process and
suggest corrective measures to be taken.
• Physical monitoring of production process.
• Examine equipment and complete safety checklist.
• Conduct visual inspections on the process and equipment.
• Report process deviations to Foreman.
• Communicate and assist team members in controlling the process.
• Compile relevant area shift report at end of shift.
• Exposures to DCS console controlling.
• Sampling of high temperature & viscous products.
• Lab analysis of plant products, i.e., viscosity, density, boiling point, freezing point,
flash point.
• Water quality analysis i.e., TSS, BOD, COD, TDS, turbidity, ph.
• Management of Service Providers for material handling, chemical cleaning,
pigging of Fired-Heater tubes.
• Keeping scheduling of the shutdown by doing oversight of the service provider on
their activities.
• Heat Exchanger high pressure cleaning, furnace burner cleaning.
• Surface chemical cleaning due to spillages
◦ Heat
Exchanger
Rating
◦ Distillation
Column
operation
◦ Fired Heater
Operation and
Control.
◦ Demin Water
Plant.
◦ WWTP
◦ Ion Exchangers
◦ Mixed Bed
Exchangers.
◦ OHS Act.
◦ ISO 9000
◦ ISO 14000
◦ ISO 18000
◦ HAZOP
◦ Material
Balance
◦ Mass Balance
◦ Mass & Heat
Transfer
calculations