Publications related to Waste heat

An improved model for the accurate calculation of parallel heat fluxes at the JET bulk tungsten outer divertor

Olivier Sauter, Ambrogio Fasoli, Basil Duval, Stefano Coda, Jonathan Graves, Yves Martin, Duccio Testa, Patrick Blanchard, Alessandro Pau, Cristian Sommariva, Henri Weisen, Richard Pitts, Yann Camenen, Jan Horacek, Javier García Hernández, Marco Wischmeier, Nicola Vianello, Mikhail Maslov, Federico Nespoli, Yao Zhou, David Pfefferlé, Davide Galassi, Antonio José Pereira de Figueiredo, Jonathan Marc Philippe Faustin, Liang Yao, Dalziel Joseph Wilson, Hamish William Patten, Samuel Lanthaler, Bernhard Sieglin, Otto Asunta

Parallel heat flux calculations at the JET divertor have been based on the assumption that all incoming heat is due to the projection of the heat flux parallel to the magnetic line, q, plus a constant background. This simplification led to inconsistencies ...

2018

Efficiency improvement of an all-vanadium redox flow battery by harvesting low-grade heat

Hubert Girault, Alberto Battistel, Christopher Raymond Dennison, Danick Reynard

Redox flow batteries (RFBs) are rugged systems, which can withstand several thousand cycles and last many years. However, they suffer from low energy density, low power density, and low efficiency. Integrating a Thermally Regenerative Electrochemical Cycle ...

2018

Integration of CO2 networks and Power to Gas for emerging energy autonomous cities in Europe

François Maréchal, Luc Girardin, Raluca-Ancuta Suciu

CO2 is used more and more as a refrigerant in the commercial and food retail industries and a majority of experts believe that its share in the field of residential heating, commercial refrigeration and mobile air conditioning across Europe will be higher ...

2017

Energy Integration on a Gasoline Engine for Efficiency Improvement

François Maréchal, Zlatina Kirilova Dimitrova

The internal combustion engines are the most applied energy converters in the passenger cars. In order to increase their efficiency, energy integration techniques are used to recover the waste heat. An adapted methodology is required to design the Organic ...

2017

Energy integration on a gasoline engine for a vehicular application

François Maréchal, Zlatina Kirilova Dimitrova

The internal combustion engines are the most applied energy converters in the passenger cars. In order to increase their efficiency, energy integration techniques are used to recover the waste heat. An adapted methodology is required to design the ORC as a ...

2017

Physical effects of thermal pollution in lakes

Alfred Johny Wüest, Damien Bouffard

Anthropogenic heat emissions into inland waters influence water temperature and affect stratification, heat and nutrient fluxes, deep water renewal, and biota. Given the increased thermal stress on these systems by growing cooling demands of riparian/coast ...

American Geophysical Union2017

Waste heat valorisation at multiple scales

Alexandre Suzanne Jean-Marie Bertrand

Considering current environmental issues (e.g. climate change, air pollution) related to energy consumption, this thesis focuses on data characterisation and integrated optimisation methods for waste heat valorisation at the building, city and regional sca ...

EPFL2017

A systematic methodology for the techno-economic optimization of Organic Rankine Cycles

Alberto Mian, Emanuele Martelli

This work presents a general and systematic methodology for the techno-economic optimization of Rankine cycles. The proposed superstructure for Rankine cycles allows to reproduce a wide range of cycle configurations, such as cycles with/without regenerator ...

Elsevier Science Bv2017

MINLP model and two-stage algorithm for the simultaneous synthesis of heat exchanger networks, utility systems and heat recovery cycles

François Maréchal, Alberto Mian, Emanuele Martelli

This work proposes a novel approach for the simultaneous synthesis of Heat Exchanger Networks (HEN) and Utility Systems of chemical processes and energy systems. Given a set of hot and cold process streams and a set of available utility systems, the method ...

2017

Thermo-economic analysis of transcritical CO2 cycles with bounded and unbounded reheats in low-temperature heat recovery applications

Ali Amini

Performance of transcritical CO2 Rankine cycles with and without reheat process is investigated thermo-economically in low-grade waste heat recovery applications. Two reheating scenarios are proposed to evaluate the effect of bounded and unbounded reheats ...

Pergamon-Elsevier Science Ltd2017

Waste heat

An improved model for the accurate calculation of parallel heat fluxes at the JET bulk tungsten outer divertor

Efficiency improvement of an all-vanadium redox flow battery by harvesting low-grade heat

Integration of CO2 networks and Power to Gas for emerging energy autonomous cities in Europe

Energy Integration on a Gasoline Engine for Efficiency Improvement

Energy integration on a gasoline engine for a vehicular application

Physical effects of thermal pollution in lakes

Waste heat valorisation at multiple scales

A systematic methodology for the techno-economic optimization of Organic Rankine Cycles

MINLP model and two-stage algorithm for the simultaneous synthesis of heat exchanger networks, utility systems and heat recovery cycles

Thermo-economic analysis of transcritical CO2 cycles with bounded and unbounded reheats in low-temperature heat recovery applications

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MINLP model and two-stage algorithm for the simultaneous synthesis of heat exchanger networks, utility systems and heat recovery cycles

Efficiency improvement of an all-vanadium redox flow battery by harvesting low-grade heat

Thermo-economic analysis of transcritical CO2 cycles with bounded and unbounded reheats in low-temperature heat recovery applications

An improved model for the accurate calculation of parallel heat fluxes at the JET bulk tungsten outer divertor

Integration of CO2 networks and Power to Gas for emerging energy autonomous cities in Europe

Energy Integration on a Gasoline Engine for Efficiency Improvement

Energy integration on a gasoline engine for a vehicular application

Physical effects of thermal pollution in lakes

Waste heat valorisation at multiple scales

A systematic methodology for the techno-economic optimization of Organic Rankine Cycles