Concept
Coefficient de performance
Publications associées (94)
Performance gap in the building sector and its impact on investment decisions for heating requirements
Between the ideal and reality lies the decisive world of the performance gap. This project is conducted within the framework of a Master Thesis at the Industrial Processes and Energy Systems Engineering (IPESE) laboratory of Ecole Polytechnique F´ed´erale ...
2024The influence of splitter blades and meridional profiles on the performance of small-scale turbopumps for ORC applications; analysis, neural network modeling and optimization
Jürg Alexander Schiffmann, Sajjad Zakeralhoseini
This work presents the influence of splitters on the performance of small-scale turbopumps for organic Rankine cycle applications numerically. Different design parameters, such as impeller diameter at the outlet, number of blades, blade angle at the traili ...
2023Plasmonic Nanofluids: Enhancing Photothermal Gradients toward Liquid Robots
Giulia Tagliabue, Matteo Bevione
In situ energy generation in soft, flexible, autonomous devices is challenging due to the need for highly stretchable and fault-resistant components. Nanofluids with pyro-, tribo-, or thermoelectric properties have recently emerged as promising solutions f ...
Washington2023Taking a step back from glass towers facades to make them compatible with the 2050 targets
Sergi Aguacil Moreno, Bernard Paule
Skyscrapers or glass towers are an extremely common model throughout the world. In the current context of climate change and resource depletion, we need to develop new postures towards these objects, especially for existing buildings that are becoming obso ...
2023Small-scale turbopumps for waste heat recovery applications based on an organic Rankine cycle: a study from pre-design to experimental validation
The organic Rankine cycle (ORC) system is among the technologies applied to exploit waste heat in vehicles. Since common organic fluids have lower latent heat than water, higher mass flow rates are required to convert the same waste heat, considerably incr ...
EPFL2023Near-junction microfluidic cooling for high power-density GaN-on-Si electronics: A wafer, device, packaging, and system-level investigation
Remco Franciscus Peter van Erp
Electrification of the energy section, from generation to end-use, plays an essential role in reducing global CO2 emission. Innovations in power electronics are required to increase conversion efficiency and power density. Gallium nitride (GaN) transistors ...
EPFL2022Bioinspired Soft Bendable Peristaltic Pump Exploiting Ballooning for High Volume Throughput
Interest in bioinspired peristaltic pumps has grown in popularity among the scientific community in the last decade thanks to their extreme flexibility and their intrinsic compliance. In this paper, we propose a soft peristaltic pump exploiting ballooning. ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022Variation in Indoor Thermal Environmental Parameters in an Open Space Office
Dolaana Khovalyg, Verena Marie Barthelmes, Arnab Chatterjee
Building energy modelling is an indispensable component of today’s design method. However, as per research findings, real-life buildings could utilize almost twice the amount of their ideal energy performance. Thus, it is important to understand the variat ...
TU Delft2022Thermally reconfigurable metalens
Giulia Tagliabue, Fateme Kiani Shahvandi, Anna Archetti, Theodoros Tsoulos, Nathanaël Restori, Ren-Jie Lin
Reconfigurable metalenses are compact optical components composed by arrays of meta-atoms that offer unique opportunities for advanced optical systems, from microscopy to augmented reality platforms. Although poorly explored in the context of reconfigurabl ...
WALTER DE GRUYTER GMBH2022Non-evaporable getter pump operations in the TCV tokamak
Ambrogio Fasoli, Basil Duval, Stefano Coda, Yves Martin, Holger Reimerdes, Marcelo Baquero Ruiz, Frédéric Dolizy
A non-evaporable getter pump using the ZAO alloy was installed on TCV and operated during the 2019 experimental campaign. The pump performance, determined from in-situ pumping speed measurements, indicates that current getter pump technologies are well sui ...
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