Jesús Enrique Peraza

- Lead thermal design and performance assessment activities for advanced cooling systems used in high-density IT environments. - Contribute to the development of Submer’s immersion cooling portfolio, including SmartPod EXO, SmartPod EVO, and MicroPod, being in charge of thermal design decisions, system performance assessments, and availability and reliability evaluations across different development stages. - Drive 1D and 3D simulation-based engineering activities, including CFD analyses and thermal performance studies, to support product architecture, design decisions, and risk reduction. - Plan and execute experimental validation activities to correlate models, verify system behavior, and improve product robustness. - Contribute to the definition and evaluation of temperature control strategies for advanced cooling systems. - Contributed to company IP generation and patent development as named inventor. - Support facility-level thermal and infrastructure assessments for immersion cooling deployments, considering mechanical integration, heat rejection strategy, utility interfaces, and site constraints. - Apply datacenter thermal best practices and reference ASHRAE TC 9.9 guidance when assessing operating conditions, thermal envelopes, and infrastructure compatibility for IT cooling solutions. - Work cross-functionally with mechanical design, testing, operations, and after-sales teams to support product development from concept through field deployment and operation. - Drive technical decision-making by balancing thermal performance, reliability, manufacturability, and project constraints. - Develop digital models of cooling solutions using Matlab/Simulink to support performance analysis, architecture evaluation, and control-oriented understanding of system behavior. - Create pre-sales-oriented product performance calculation tools to predict product behavior and efficiency across a wide range of operating conditions.

- Performed Engine Management System (EMS) calibration and verification activities for serial-life topics at Nissan Technical Centre Europe. - Verified EMS functionality by assessing its ability to meet specification requirements and solve after-sale performance issues. - Worked on software and calibration updates and technical investigations of vehicles at the plant, different testing facilities and proving grounds.

Injection-Combustion Research Line. Focus field on direct injection systems for Diesel engines. Developing the doctoral thesis entitled "Experimental study of the diesel spray behavior during the jet-wall collision under high pressure and high temperature conditions". Active participation in several R+D projects. Research stay at Caterpillar Inc. (USA), in the frame of the PhD. program. - Led experimental activities and data analysis for several research works with OEMs (two projects for Caterpillar Inc.), national supported projects (MINECO) and collaborative works (Engine Combustion Network) - Performed characterization of Diesel injectors through Mass flow rate and Spray momentum measurements. - Applied advanced optical diagnostics of injection and combustion processes at Diesel-like conditions (Schlieren, DBI, MIE, OH chemiluminescence, etc). - Operated and adapted of high-pressure and high-temperature test rigs and laboratory equipment. - Designed and tuned mechanical elements for experimental setups. - Developed Matlab tools for data processing, analysis, and interpretation of experimental results. - Authored technical reports, scientific publications, and conference contributions. - Supervised and tutoring of undergraduate and master students in their final projects. - Supported teaching activities in “Combustion” and “Heat Engines” laboratory classes.

Investigation performed in the Combustion & Thermofluids Research Department at the Caterpillar Technical Center (TC-F). Work on two different projects about experimental visualization of cavitation employing multi-hole real-size transparent nozzles, and measurements of fuel concentration at diesel-like conditions. Some of the tasks carried out at CAT, were: - Performed stresses analysis through Finite-Element Method (FEM) and to propose injector nozzle designs. - Worked on search for supplier capable to provide high quality micro-machining. - Developed Matlab-based analysis tools and cavitation maps for different stages of the injection event and determination of relevant parameters to describe the cavitation phenomenon. - Proposed test plans and conducted laboratory work using Laser Induced Fluorescence (LIF)-based techniques.

Execution of the "SIGEMA Sucursales APC" project: - Implementation of the SIGEMA (Maintenance Management System) methodology in 10 Empresas Polar branch offices of at national level. - On-site technical info documentation of the equipment, failures and classification. - Systems hierarchy through criticality studies based on RCM. - Development of Failure Analysis and creation of maintenance plans for electromechanical equipment of the branches. Uploading of Roadmaps in SAP PM. - Gathering and uploading of information about electromechanical equipment and maintenance plans in SAP R/3. - Updating of plans of Empresas Polar establishments in AutoCad. - Responsible of personnel training in the use of the Maintenance Management System.

Internship experience with the degree project entitled "Maintenance Plan for Critical Equipment in Flour Packaging Area at APC Turmero": - Functional analysis of equipment and machines in the Flour Packing Area. - Studies of criticality in the aforementioned equipment. - Failure Modes and Effects Analysis (FMEA) and application of RCM for critical equipment of the Packaging Area. Handling of SAE-JA1011 and SAE-JA1012 standards. - Presentation of improvements to the existing maintenance plans and proposed modifications on SIG-PFD packers and Hesser SP-31 baling machines, in order to reduce their unscheduled shutdowns.

General support at two laboratories of the Universidad Simón Bolívar (Metal-mechanic Techniques Division of the Manufacturing Processes Lab and the Mechanical Energy Conversion Lab) - Assistance in lab classes for undergraduate students. - Ensure the correct functioning of the facilities. - Administrative tasks.

Teaching and assisting of students in exercises classes of the following subjects from the Mechanical Engineering study program: - "Hydraulic Turbomachinery". - "Mechanical Vibrations" - "Dynamics II" - "Materials Mechanics II"

Short internship in the Engineering Institute Foundation for Research and Technological Development, working on the project "Design of a Flow Regulating Vessel for a Water Treatment Plant at the Orinoco River, Venezuela" - CAD design of a device capable of regulating river water flow within a working range established for testing of a treatment plant. - Design of the pumping system of the aforementioned facility. - Evaluation of its support structure through Finite Elements Method.