Concept

Brake-specific fuel consumption

Publications associées (53)

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The field of edge computing in healthcare has seen remarkable growth due to the increasing demand for real-time processing of data in applications. However, challenges persist due to limitations in healthcare devices' performance and power efficiency. To o ...

Europractice2024

Performance evaluation and the implementation of the turbocharger, fuel cell, and battery in Unmanned Aerial Vehicles (UAVs)

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The current study evaluates integrating fuel cell technology into the batteries as an alternative for internal combustion engines (ICEs) for Unmanned Aerial Vehicles (UAV). To further improve the performance of the UAV, a turbocharger is also integrated to ...

Amsterdam2023

Réseau de distribution de chaleur et de froid utilisant le CO2 comme fluide caloporteur

Luc Girardin, Jessen Page, Alberto Mian, Samuel Henchoz, Patrick Chatelan, Cédric Dorsaz

Anergy networks with water circulation are an efficient solution for the supply of urban heating services, but require a bulky and expensive infrastructure with higher energy consumption. Replacing water with CO2 enables a more compact solution with lower ...

Office fédéral de l’énergie OFEN, Section Recherche énergétique et cleantech2023

Feasibility analysis and preliminary design of a Lunar Reconnaissance Drone

This thesis presents the feasibility analysis and preliminary design of a new Lunar Reconnaissance Drone. The system’s objective, which is composed of the drone and a service station, is to assist a large-scale rover mission into low-light zones of the Moo ...

2022

Offshore utility systems for FPSOs: A techno-environomic assessment considering the uncertainty about the natural gas price

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Due to restricted weight and space budget on floating production, storage and offloading units (FPSO), the offshore utility systems have been limited to low-efficiency energy technologies. Moreover, owing to time-varying energy demands of the FPSOs, the ex ...

2021

Do energy performance certificates allow reliable predictions of actual energy consumption and savings? Learning from the Swiss national database

Jean-Louis Scartezzini, Stefano Cozza, Arno Schlueter

The thermal performance gap in buildings is defined as the difference between the theoretical and the actual energy consumption for heating, and is known to undermine energy retrofit strategies and policies. This study examines the performance gap in retro ...

ELSEVIER SCIENCE SA2020

Optimizing the power hub of offshore multi-platform for oil and gas production

Daniel Alexander Florez Orrego

Offshore oil and natural gas production is an energy-intensive activity and is responsible for the emission of significant amounts of carbon dioxide into the atmosphere. The main emitting source is the simple-cycle gas turbines (SCGT) of the utility system ...

2020

Material and Energy Flow Analysis and Associated Environmental Impacts of Swiss Mobility

Cecilia Matasci

The development of material flow analysis (MFA) on large-scale systems is challenging due to the complexity and breadth of data that are required and the magnitude of the mass flows involved. This is true, for example, when trying to determine the material ...

Paul Scherrer Institute, World Resources Forum2019

Design and Experimental Realization of a Steam-Driven Micro Recirculation Fan for Solid Oxide Fuel Cell Systems

Jan Van Herle, Jürg Alexander Schiffmann, Stefan Diethelm, Zacharie Wuillemin, Patrick Hubert Wagner

The Laboratory for Applied Mechanical Design (LAMD) designed, manufactured, and experimentally tested a novel steam-driven anode off-gas recirculation (AOR) fan for 10 kWel solid oxide fuel cell (SOFC) systems. Due to the dynamic steam-lubricated bearings, ...

Electrochemical Society2019

Two-phase and oil-free co-rotating scroll compressor/expander

Jürg Alexander Schiffmann

This paper discusses experimental and theoretical investigations about a re-designed co-rotation scroll machine, operating in compressor and expander mode. The machine has been tested under various operational conditions, with the aim to determine the infl ...

2019

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