Matheos Giakoumi

Framework to evaluate coordination and utility of CCUS and UHS value-chain stakeholders. At the 45th IAEE, introduced the price of CO₂ as an energy commodity, moving beyond the carbon-tax framing. Demonstrated that a CCUS infrastructure in Cyprus’s Aphrodite Gas Field could generate positive NPV for emitters and O&G producers with limited government subsidy. Methodology now being implemented in the Ravenna CCS hub (Eni SpA) for emitters in Lombardy, Veneto, and Emilia Romagna.

Designed insulation and PV system for a Net-Zero upgrade of a house in Limassol, Cyprus. Turned the groundwork into a novel stochastic cashflow model for project profitability. Now generalizing the model across the whole Cyprus market using behavioral-economics-informed input distributions.

Consultancy on modeling European electricity and gas markets in PLEXOS for CESI and the World Bank on the Black Sea Electricity Project. Built a Python .NET automation pipeline for end-to-end PLEXOS project execution from input to visualization.

Assessed smart contracts for automating service-contractor interactions in offshore drilling. Translated physical interactions into Solidity contracts on Ethereum TestNets. Results contributed to confidential internal assessments of operating working capital (liabilities estimation, FX fees, bargaining power) and led to further company R&D in the area.

Screening tool (material balance) for CO₂ injection with water influx in depleted gas reservoirs and piston-like EGR. Adaptable to dry and condensate reservoirs with stochastic petrophysical heterogeneity. Grid-independent, positions CO₂ as a marketable product. Now being extended to hydrogen storage with “pseudo-dispersion” and integrated with geomechanics simulators.

MEng thesis work using Petrel and MATLAB to simulate the Norwegian section of the Frigg field. Contributions: CO₂ piston-like injection for EGR, a semi-stochastic algorithm for optimal double-section casing design (heuristic filter-and-sort), a kernel algorithm for spatial accident risk factoring distance and POIs, and stochastic project economics with uncertainty in production delays, gas prices, CAPEX and OPEX. Several strategies integrated into the UCY master’s curriculum.

Compartmental PBTK model for Nickel leaching from cardiovascular devices. In-house animal experiments integrated into time-variant ODE systems, framed as a multi-objective optimization problem balancing physiological and device parameters. Addressed non-smoothness via global optimization and stochastic analysis. Three publications. Now extending to PDE-based modeling of the peri-implant environment. Platform “TOXILICO App” in development as a hard-tech spin-off.

Fundamental work regulating equilibrium of chemical reactions by adjusting the rate of change of auxiliary functions. Control the rate of chemical work relative to invoked thermal and configurational entropy shifts via independent-variable tuning. Goal: synthesis of bulk amorphous tungsten nanostructures as templates for tungsten carbide and oxides.

Studied dichroism in CBP (4,4′-Bis(N-carbazolyl)-1,1′-biphenyl) thin films following the processing-structure-properties-performance tetrahedron. Spin-coating with varied speeds and annealing; UV-Vis with polarizer for anisotropy. Separately fabricated OPVs and OLEDs using ITO/PEDOT:PSS and P3HT:PCBM via doctor blade, inkjet printing, and sputtering.

Fabricated home-made supercapacitors varying carbon grinding duration, salt concentration, and binder quantity. Electrode nanostructure examined by SEM. Parallel XRD work with RIR quantitative phase analysis using Match! Software.