Adriano Francisco Ronzoni

• Manage collaborative efforts between Nidec-GA and external research centers, specifically universities, overseeing projects within household and commercial refrigeration systems, heat pumps, compressor thermodynamics, acoustics, materials, and not-in-kind heating and cooling domains.
• Lead budget planning and execution for collaborative projects, ensuring alignment with technical scope, orchestrating contract negotiations, setting deadlines, and managing IPs and Non-Disclosure Agreements (NDAs).
• Oversee the end-to-end process of scientific publications and/or IPs arising from collaborative research initiatives, fostering dissemination of innovative findings to the industry and academia.
• Support strategic technology roadmap for compressors and refrigeration units, guiding the direction of innovation and advancement in alignment with industry trends and company objectives.

As the team leader, effectively manage a group of five engineers, directing their efforts in a wide spectrum of tasks including:

• Ensuring optimal matching of compressor and system performances.
• Devising comprehensive test plans and meticulously processing data for accurate compressor calorimeter tests.
• Spearheading the design of heat exchangers and conducting simulations to optimize cabinet air flow.
• Leading the design and selection of expansion devices, including CT-SL HX and TXVs.
• Developing advanced mathematical models for household and commercial appliances, enabling performance predictions through numerical simulations.
• Conducting experimental evaluations of refrigeration systems within controlled test chambers.
• Overseeing the design and testing of both condensing units and sealed units.
• Providing dedicated support to customers during co-development initiatives.
• Actively engaging in industry conferences to stay current with trends and advancements.
• Contributing to the field through the publication of influential scientific works.

• Refrigeration Systems Modeling: employed comprehensive knowledge of refrigeration system design and psychometrics, developed semi-empirical mathematical model to predict refrigeration system performance based on components performance curves using EES (Engineering Equation Solver). Leveraged expertise in numerical simulations to analyze and optimize household refrigerator systems, resulting in substantial energy consumption reduction and cost savings for end-users.
• Compressor Test and Selection: applied DOE (Design of Experiments) during compressor calorimeter performance tests. Use compressor data to derive compressor volumetric and global efficiencies. Applied compressor performance curves during refrigeration system simulation aiming compressor selection and system matching, ensuring integration of components and achieving optimal system efficiency.
• Thermal Load: applied first-principle models, numerical simulation (EES/Ansys) and experimental procedures (reverse heat transfer test) to estimate cabinet thermal loads and overall heat transfer coefficients.
• Expansion devices: applied first principle models for capillary tube mass flow prediction. Conducted nitrogen flow tests to refine Kipp-Schmidt equation for inner diameter derivation. Optimized refrigeration systems through capillary tube and compressor matching. Designed effective cap. tube - suction line heat exchanger to enhance system performance and prevent compressor liquid slug.
• Heat Exchangers: applied Ansys Fluent / Evap-Cond / CoilDesigner to derive heat exchanger performance curves (UA vs. airflow and dp vs. airflow) to be used during refrigeration unit simulation. Oversaw wind tunnel tests for heat exchanger performance evaluation.

• Executed engineering tests in accordance with IEC62552-2015 for household refrigerators (pull-down, energy consumption, freezing capacity, classification tests).
• Reviewed application lab test reports. Prepared presentations and engineering reports to top management and customers.
• Performed numerical simulation to predict compressor mass flow and expected cooling capacity.
• Performed routine lab instrumentation (thermocouples, pressure transducers, mass flow meters, Labview/National Instruments DAQ programming).
• Developed programs, contributed to control design, created lab benches, and coordinated R&D projects' timelines and deliverables.

Lectured classes in thermodynamics, heat transfer, thermal machines, fluid machines, refrigeration, air conditioning and psychometrics.

• Conducted comprehensive literature reviews, and compiled data to uncover research patterns.
• Put-forward a dynamic simulation model to predict heat and mass transfer processes on drip-pans for household refrigerators.
• Designed, built, instrumented and experimental workbench (calorimeter) to investigate heat and mass transfer on compressor water trays.
• Designed and conducted experiments to evaluate the influence of psychometric conditions, air velocity and tray design on the transient water evaporation.
• Drafted technical papers and master thesis, collected and maintained data, and synthesized findings.

• Enhanced a capillary tube workbench for in-depth exploration of Isobutane (R-600a) flow in adiabatic capillary tubes.
• Established instrumentation and controls using LabVIEW/NI platform.
• Strategized and executed Design of Experiments (DOE) for comprehensive experimentation.
• Skillfully processed and analyzed experimental data to extract meaningful insights.
• Developed a robust mathematical model to accurately predict capillary tube mass flow rates in adiabatic conditions.

Designed and assembled a workbench using SolidWorks to investigate particle tracking velocimetry of particles in turbulent pipe flow.

• Conducted regular updates and maintenance of the workbench to ensure optimal functionality.
• Managed workbench instrumentation, overseeing temperature, pressure, and mass flow monitoring.
• Successfully executed test runs in alignment with project objectives.
• Processed and analyzed collected data with precision.
• Took charge of Data Acquisition (DAQ) system maintenance, utilizing LabVIEW/NI for effective management and troubleshooting.