Conference Agenda

This study evaluates the impact of climate change on run-of-river hydropower potential in the middle–upper Jequetepeque River basin, Peru. Climate projections from the IPSL-CM6A-LR model under the high-emission scenario SSP5–8.5 (CMIP6) were used to analyze water availability for the periods 2026–2065 and 2066–2100. The methodology integrated Google Earth Engine for climate data management, the SCS-CN hydrological model (calibrated with a Nash–Sutcliffe efficiency of 0.9953), and GIS tools to segment the river network into reaches of 500, 1000, and 1500 meters.

The results project an intensification of the hydrological cycle toward the end of the century, with increased flows during high-flow months and more pronounced low-flow periods. A maximum theoretical potential of up to 33.15 MW was identified in the San Miguel sub-basin (Llapa River) for the period 2066–2100 using 1500 m reaches. The study concludes that the basin exhibits high technical suitability for the development of micro- and mini-hydropower plants, which represent a sustainable and resilient alternative for the regional energy transition under future climate stress.

Prototyping is a fundamental tool in airfoil design and aerodynamic research, enabling rapid evaluation of geometry, manufacturing constraints, and performance through experimental testing. Among commonly used prototyping techniques, laser cutting and fused deposition modeling (FDM) are widely adopted in airfoil development. This paper presents an experimental comparison of two prototyping manufacturing methods applied to SG6043 airfoil models for small-scale wind turbines operating under low wind speed conditions. The airfoils were fabricated using laser cutting with medium-density fiberboard (MDF) and FDM with polyethylene terephthalate glycol-modified (PETG). Their aerodynamic performance was assessed in a wind tunnel, focusing on lift, drag, and lift-to-drag (L/D) ratio. Experimental results show that the FDM-manufactured airfoil outperforms the laser-cut prototype, achieving an L/D ratio approximately 20% higher. These findings highlight the influence of prototyping methods and material selection on airfoil aerodynamic performance and support the use of FDM for rapid prototyping in airfoil design and research.

This study evaluates the technical feasibility of producing green hydrogen from surplus energy at the Vientos del Este wind farm, located in Tilarán, Costa Rica. The main objective is to propose a methodology that allows estimating and utilizing the farm's non-marketed energy surplus to generate hydrogen as an energy carrier, store it, and eventually convert it into electricity using the P2H2P (Power to Hydrogen to Power) approach.

The methodology used includes statistical analysis of historical data from the SCADA system between 2020 and 2023, focusing on the peak generation months (December to April). Power curves were fitted using sixth-degree polynomial regressions to characterize wind energy production and calculate surpluses. Subsequently, the electrolysis system with PEM electrolyzers was designed, integrating estimates of water requirements, energy efficiency, installation space, and compression stages for storage in Type II tanks at 350 bar.

The results show an average annual production of 28,6 tons of hydrogen (317 938 Nm³), sufficient to generate 571,5 MWh of electricity using fuel cells. However, the energy balance reveals losses exceeding 70 %, questioning the economic viability of the system in applications with long storage periods.

The study stands out for offering a replicable methodology in other wind farms with overcapacity, providing a useful technical basis for future developments in hybrid renewable energy systems and energy decarbonization.

The intensive use of disposable gloves in sanitary and laboratory applications has led to a significant increase in polymeric waste that is difficult to manage, motivating the search for alternative valorization pathways. In this work, the thermochemical characterization and pyrolysis of disposable latex, nitrile, and 50 wt.% latex–50 wt.% nitrile gloves were investigated in order to evaluate the effect of polymer composition on their thermal behavior, energy potential, and product distribution. Raw material characterization was carried out by thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), and higher heating value (HHV) determination. TGA results evidenced a higher thermal stability of nitrile gloves compared to latex gloves and allowed the selection of 600 °C as the operating temperature for the pyrolysis experiments. FTIR spectra confirmed the structural differences between the materials and the coexistence of both polymeric matrices in the blended sample. HHV results showed a higher energy potential for nitrile gloves compared to latex gloves, with intermediate values for the blend. During pyrolysis at 600 °C, pure nitrile gloves favored liquid production, whereas latex gloves exhibited a greater tendency toward gas formation; the 50/50 blend showed a non-linear behavior, with a significant increase in the gaseous fraction. Overall, the results demonstrate that raw material composition plays a decisive role in the pyrolysis of disposable gloves and that prior characterization is a key step to guide thermochemical valorization strategies.

Pig farming in the Ventanilla pig park (Callao, Peru) generates large volumes of manure that are currently managed in a precarious manner, with diffuse emissions of methane, leachates, and socio-environmental conflicts in a densely populated peri-urban area. Although biogas utilization offers a sustainable alternative, most of the solutions available to small and medium-sized producers are based on empirical designs, without clear criteria for organic load, hydraulics, or structural safety. The process sizing is based on a volumetric organic load of 2.5 kgSV/m³·day and a hydraulic retention time of approximately 23 days, considering 65 kg pigs with manure production of $8\%$ of live weight, 6% dry matter, and $95\%$ volatile solids. Under these assumptions, the system is designed to treat the manure of around 420 pigs, with a theoretical production of 43–44 m³/day of biogas (0.35 m³/kgSV), equivalent to about 96 kWh/day of electricity, sufficient to operate the 10 kWe generator for 9–10 hours per day. The civil plant already built and the planned integration of agitation equipment, gas hood, biogas lines, and generator set make this module a replicable demonstration platform for reducing environmental impacts and improving energy security in peri-urban pig farms