Ahmet Elitok

In mijn rol als Werkvoorbereider Warmtenetten werk ik binnen de afdeling Realisatie van HVC aan de verduurzaming van de Drechtsteden, waaronder Dordrecht, Papendrecht, Sliedrecht, Zwijndrecht en Hendrik‑Ido‑Ambacht. Dit doe ik door warmtenetten te realiseren die gebruikmaken van energie uit afvalverbranding, geothermie en diverse duurzame installatietechnieken.

Voor mijn functie als Sustainability Engineer werk ik aan duurzame energieprojecten voor partners van YoungProfs.

Supported multidisciplinary engineering projects by preparing and analysing mechanical cost estimates and translating technical input into structured cost information.

My position as a Project Engineer at Roodenburg Groep includes working with a Project Team on WKO Project Cartesius te Utrecht and Hyde Park te Hoofddorp. I am responsible for ensuring various HVAC-systems are engineered, designed, measured and fit throughout the course of the project. This includes various pipeline systems, heat interface units, ventilation and cooling systems, and various other HVAC-systems.

My position as a WKO (Warmte- en Koudeopslag) Design Engineer for Roodenburg Groep. I am responsible for further Engineering detailed calculations regarding Aquifer Thermal Energy Storage Systems. My position is best described as a bridge between the Calculation Team and the Project Team, where Engineering projects in further detail results in giving Project Teams better opportunities to make the right decisions during the earlier stages of a project.

Graduation Internship where my research involved looking at the pipeline system of WKO Project Cartesius te Utrecht, to determine the effect of increasing the maximum amount of allowed pipeline pressure (Pa/m) and velocity (m/s) for indoor- and outdoor pipeline systems for heating/cooling and tapwater. Research shows increasing the pressure and velocity causes the diameters of the pipeline system to get smaller. With the total amount of surface area decreasing, the total amount of thermal heat loss throughout the pipeline system decreases. The higher pressure and velocity are compensated with an increase in total amount of electricity used by the distribution pump. There is not much change in total energy consumption, but with the new certified NTA8800 tool and decrease in material costs the total cost for the project will have decreased by nearly €100.000.

For my graduation internship I am responsible for collecting all data regarding the energy consumption of operational equipment inside Airframe and KLM’s subsidiary EPCOR, and looking at possibilities for sustainable renewable energy options by generating a Heat Map, consisting of all MRO ground operation repair machines, their energy consumption and their possibilities for renewable energy. An advisory report for KLM is made showcasing all potential business cases to make all Equipment used for MRO Ground Operations emission free. Research involves the reusability of unused electrical energy from EPCOR's Auxiliary Power Unit (APU) Test Cell. Thesis was rejected by Rotterdam University of Applied Sciences because (according to them) the thesis was too "Business-Engineering oriented" and "Not Technical enough". Though KLM has incorporated this Thesis rapport as a first step and lead in obtaining the highly sought-after overview necessary to make aeroplane MRO-operations emission-free by 2030.

Responsible for setting up a full-car CFD model to participate with the Formula Student competition using OpenFOAM, an Open Source C++ CFD Program. The CFD model is used to increase Aerodynamic vehicle performance by increasing the downforce (negative lift), making the car faster and therefore decreasing total lap time. Developments in Aerodynamic performance of the vehicle were done through the creation and design of various concepts involving the vehicle nozzle, underbody and diffuser to increase downforce generated from the vehicle underside. Validation for the full-car CFD model was done by modelling a vehicle bluff body called the Ahmed Body. Attempts to create the mesh were done with the use of both cfMesh and snappyHexMesh. For the solver, a steady-state Reynolds-Averaged Navier-Stokes (RANS) solver called simpleFoam was used. Various turbulence models, discretization schemes and initial conditions showed the k-ω SST (k-Omega SST) model to give the best simulation results.

Summer job continuing my assignment for Aquifer Thermal Energy Storage Systems (ATES Systems). Designed and monitored more than 100 technical documents for ongoing ATES projects. Calculated the necessary amount of heat pumps for each project based on required performance for tapwater delivery.

During my internship at Roodenburg Groep I have dedicated my time and effort into learning and designing in the field of Geothermal Installation Technology. My Internship assignment involved looking at the effects of Geothermal Energy on building complexes, and designing an installation that would fulfill the Energy needs of that complex in an efficient and environmental-friendly way.