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The thermoelectric working fluid: thermodynamics and transport [PDF]

open access: yesComptes Rendus. Physique, 2016
Thermoelectric devices are heat engines, which operate as generators or refrigerators using the conduction electrons as a working fluid. The thermoelectric heat-to-work conversion efficiency has always been typically quite low, but much effort continues ...
Benenti, G., Goupil, C., Ouerdane, H.
core   +4 more sources

Effect of Working Fluid-Filling Ratio Combination on Thermosyphon Performance as Add-In Enhancer for Indoor Air Conditioning Devices

open access: yesEnergies, 2022
An experimental study is presented to account for the implementation of a two-phase closed thermosyphon pipe, for energy-saving purposes, in air conditioning systems in the context of COVID-19.
Ignacio Carvajal-Mariscal   +3 more
doaj   +1 more source

Flow and Heat Transfer Performances of Liquid Metal Based Microchannel Heat Sinks under High Temperature Conditions

open access: yesMicromachines, 2022
Developments in applications such as rocket nozzles, miniature nuclear reactors and solar thermal generation pose high-density heat dissipation challenges.
Tao Wu   +4 more
doaj   +1 more source

Structural and Parametric Optimization of S-CO2 Thermal Power Plants with a Pulverized Coal-Fired Boiler Operating in Russia

open access: yesEnergies, 2021
The Rankine cycle is widely used for electricity production. Significant weight and size characteristics of the power equipment working on superheated steam are the main disadvantages of such power plants.
Andrey Rogalev   +4 more
doaj   +1 more source

Investigation of Working Fluid Performance through a Centrifugal Compression System

open access: yesApplied Mechanics, 2022
Commonly, researchers have investigated many factors that impact the performance of air conditioning and refrigeration systems, such as varied cooling configurations, operating conditions and optimization of specific system components.
James Bull   +2 more
doaj   +1 more source

Investigation of a Dual-Loop ORC for the Waste Heat Recovery of a Marine Main Engine

open access: yesEnergies, 2022
As carbon dioxide emissions arising from fossil energy consumption and fossil fuels are gradually increased, it is important for the low-carbon operation of ships to recover diesel engine waste heat. A newly developed dual-loop organic Rankine cycle (ORC)
Long Lyu   +5 more
doaj   +1 more source

Thermodynamic Analysis and Working Fluid Selection of a Novel Cogeneration System Based on a Regenerative Organic Flash Cycle

open access: yesEnergies, 2022
Recently proposed organic flash cycles maintain lower irreversibility in the evaporator than traditional organic Rankine cycles. This study presented a novel combined heat and power system that was based on a regenerative organic flash cycle, in order to
Haojie Chen, Man-Hoe Kim
doaj   +1 more source

Diesel engine waste heat recovery system comprehensive optimization based on system and heat exchanger simulation

open access: yesOpen Physics, 2021
To further improve the thermal efficiency of diesel engines, a waste heat recovery system model utilizing organic Rankine cycle (ORC) is constructed and verified through system bench test and heat exchanger bench test.
Li Da   +5 more
doaj   +1 more source

A Review of Super-High-Temperature Heat Pumps over 100 °C

open access: yesEnergies, 2023
The high-temperature heat pump, as a low-carbonization technology, has broad application prospects in replacing boiler heating, reducing carbon dioxide emissions, and improving the energy utilization efficiency.
Jian Sun   +5 more
doaj   +1 more source

Thermodynamic Efficiency Maximum of Simple Organic Rankine Cycles

open access: yesEnergies, 2021
The increase of the maximal cycle temperature is considered as one of the best tools to increase cycle efficiency for all thermodynamic cycles, including Organic Rankine Cycles (ORC).
Aram Mohammed Ahmed   +2 more
doaj   +1 more source

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