Water resource appraisal
Scenario-led water resource appraisal
Scenario analysis, option appraisal and evidence gates for adaptable water-resource planning.
- Scenario analysis
- Option appraisal
- Decision gates
KOMEC GLOBAL · Water infrastructure
Water infrastructure decisions, grounded in clear evidence.
Selected water-infrastructure experience in hydraulic and CFD modelling, network strategy, non-revenue water analysis and technical assurance, led by Raef Kobeissi CEng FIMechE.
- 18+
- years of experience
- CEng · FIMechE
- professional credentials
- 8+
- specialist CFD commissions
Illustrative infrastructure image
Case studies
Methods, models and engineering judgement.
Explore 2 studies in water-resource planning and water-treatment hydraulics, with assumptions and limitations alongside the evidence.
Computational fluid dynamics
CFD modelling of a baffled contact tank
Tracer transport, mixing and contact-time analysis in a baffled water-treatment tank, with model assumptions and numerical limitations stated.
- Tracer transport
- Contact-time analysis
- Model limitations
Experience highlights
Strategy, performance and delivery.
Selected assignments, with the engineering question, personal contribution and wider programme outcome distinguished.
01 · Strategy & investment
Risk-led trunk-main strategy
- Decision
- How should investment protect customers and reduce failure exposure without funding the wrong assets?
- Personal role
- Led infrastructure strategy and co-authored the regulatory enhancement case within a wider multidisciplinary programme.
- Outcome
- A multi-period investment pathway targeted the highest-risk 600 km of trunk mains within a 3,600 km network and supported a multi-million-pound regulatory enhancement case.
- Multi-million
- pound enhancement case co-authored
- 600 km
- trunk mains
- 3,600 km
- network assessed
02 · Diagnostics & optimisation
Probabilistic leakage and intervention prioritisation
- Decision
- Where should field resources be deployed when leakage evidence and water balances remain uncertain?
- Personal role
- Led the analytical framework, combining probabilistic water-balance analysis with condition and operational risk scoring.
- Outcome
- Risk-led analysis supported leakage reduction and an annual programme of around 120 proactive trunk-main repairs.
- 120
- proactive repairs per year
- Risk-led
- intervention priorities
03 · Advanced modelling
CFD diagnostics for water quality and asset performance
- Decision
- Do flow behaviour and residence time justify an operating change, targeted retrofit or capital intervention?
- Personal role
- Established and led a specialist CFD service line, from scoping and model development to interpretation and recommendation.
- Outcome
- 8+ specialist commissions supported water-quality assurance, retrofit evaluation and investment decisions for 4 water utilities.
- 8+
- specialist commissions
- 4
- water utilities
04 · Technical assurance
Live-system assurance for a major transmission upgrade
- Decision
- Can new pumping, storage and transmission works be integrated without compromising live-network operation?
- Personal role
- Led construction-stage design review and technical assurance across submissions, interfaces and stakeholder coordination.
- Outcome
- Technical governance supported construction readiness and integration of pumping, storage and major mains within an operating network.
- >50 km
- major mains
- Live network
- delivery interfaces
Technical focus
From system behaviour to investment choices.
Modelling, asset analysis and independent review applied to water networks, treatment assets and long-term supply planning.
Hydraulic modelling
Network capacity, pressure, resilience and reinforcement assessment.
CFD modelling
Water quality, mixing, residence-time and flow-behaviour analysis.
Non-revenue water studies
Water-balance, leakage, pressure and intervention prioritisation analysis.
Technical peer reviews
Independent engineering review of models, designs, strategies and business cases.
Water resource strategy
Demand-led supply planning, option appraisal and strategic investment pathways.
Engineering assurance
Evidence-led asset strategy, technical assurance and decision support.
Engineering approach
Start with the question. Build the decision basis.
- 01
Diagnose
Define the question, constraints and material uncertainty.
- 02
Evaluate
Compare performance, options, risk and whole-life value.
- 03
Decide
Translate the findings into an implementable pathway.
- 04
Assure
Review technical integrity and delivery interfaces.
Profile
Engineering judgement, grounded in delivery.
Raef Kobeissi is a Chartered Engineer and infrastructure leader with 18+ years of experience in water and major infrastructure programmes.
His work combines long-term network strategy, advanced simulation, asset analytics and delivery assurance, including leadership of multidisciplinary teams of up to 40 specialists.
View credentials
Contact
Let’s connect.
Professional conversations about water infrastructure, engineering methods and technical collaboration are welcome.
Email Raefra.kobeissi@komecglobal.com