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2021 (3)

2020 (1)

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Book
District Heating and Cooling Networks
Authors: --- ---
ISBN: 3039288407 3039288393 Year: 2020 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Conventional thermal power generating plants reject a large amount of energy every year. If this rejected heat were to be used through district heating networks, given prior energy valorisation, there would be a noticeable decrease in the amount of fossil fuels imported for heating. As a consequence, benefits would be experienced in the form of an increase in energy efficiency, an improvement in energy security, and a minimisation of emitted greenhouse gases. Given that heat demand is not expected to decrease significantly in the medium term, district heating networks show the greatest potential for the development of cogeneration. Due to their cost competitiveness, flexibility in terms of the ability to use renewable energy resources (such as geothermal or solar thermal) and fossil fuels (more specifically the residual heat from combustion), and the fact that, in some cases, losses to a country/region’s energy balance can be easily integrated into district heating networks (which would not be the case in a “fully electric” future), district heating (and cooling) networks and cogeneration could become a key element for a future with greater energy security, while being more sustainable, if appropriate measures were implemented. This book therefore seeks to propose an energy strategy for a number of cities/regions/countries by proposing appropriate measures supported by detailed case studies.


Book
Heat Transfer in Energy Conversion Systems
Authors: --- ---
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

In recent years, the scientific community’s interest towards efficient energy conversion systems has significantly increased. One of the reasons is certainly related to the change in the temperature of the planet, which appears to have increased by 0.76 °C with respect to pre-industrial levels, according to the Intergovernmental Panel on Climate Change (IPCC), and this trend has not yet been stopped. The European Union considers it vital to prevent global warming from exceeding 2 °C with respect to pre-industrial levels, since this phenomenon has been proven to result in irreversible and potentially catastrophic changes. These climate changes are mainly caused by the emissions of greenhouse gasses related to human activities, and can be drastically reduced by employing energy systems, for both heating and cooling of buildings and for power production, characterized by high efficiency levels and/or based on renewable energy sources. This Special Issue, published in the journal Energies, includes 12 contributions from across the world, including a wide range of applications, such as HT-PEMFC, district heating systems, a thermoelectric generator for industrial waste, artificial ground freezing, nanofluids, and others.

Keywords

Research & information: general --- Technology: general issues --- Thermosyphon --- start-up characteristics --- hydrophilic and hydrophobic --- contact angle --- numerical modeling --- heat transfer --- artificial ground freezing --- underground station --- metro in Napoli --- GEO heating --- microwave heating --- microfluidics --- silicon --- chip integration --- industrial waste heat recovery --- thermoelectric generator --- hexagonal heat exchanger --- temperature distribution --- output performance --- combustor --- turbulent Prandtl approaches --- Navier–Stokes simulation --- thermal analysis --- axial permanent magnet coupling (APMC) --- eddy current --- finite element method (FEM) --- lumped-parameter thermal network (LPTN) --- energy efficiency --- induction heating --- resistance heating --- turnouts --- railway --- safety of rail traffic --- stock-rail --- switch-rail --- nanofluid --- entropy generation --- viscous dissipation --- magnetic heating --- high temperature proton exchange membrane fuel cell --- thermal management --- organic rankine cycle --- plate heat exchanger --- waste heat recovery --- cooling system --- thermodynamic modeling --- shielded metal arc welding --- welding spatter --- electrode --- electrical power --- welding time --- drying --- energy analysis --- exergy analysis --- multiphase model --- multispecies model --- thermodynamics --- Baltic Sea Region --- district heating --- DH network --- smart asset management --- smart grid


Book
Heat Transfer in Energy Conversion Systems
Authors: --- ---
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

Loading...
Export citation

Choose an application

Bookmark

Abstract

In recent years, the scientific community’s interest towards efficient energy conversion systems has significantly increased. One of the reasons is certainly related to the change in the temperature of the planet, which appears to have increased by 0.76 °C with respect to pre-industrial levels, according to the Intergovernmental Panel on Climate Change (IPCC), and this trend has not yet been stopped. The European Union considers it vital to prevent global warming from exceeding 2 °C with respect to pre-industrial levels, since this phenomenon has been proven to result in irreversible and potentially catastrophic changes. These climate changes are mainly caused by the emissions of greenhouse gasses related to human activities, and can be drastically reduced by employing energy systems, for both heating and cooling of buildings and for power production, characterized by high efficiency levels and/or based on renewable energy sources. This Special Issue, published in the journal Energies, includes 12 contributions from across the world, including a wide range of applications, such as HT-PEMFC, district heating systems, a thermoelectric generator for industrial waste, artificial ground freezing, nanofluids, and others.


Book
Heat Transfer in Energy Conversion Systems
Authors: --- ---
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

Loading...
Export citation

Choose an application

Bookmark

Abstract

In recent years, the scientific community’s interest towards efficient energy conversion systems has significantly increased. One of the reasons is certainly related to the change in the temperature of the planet, which appears to have increased by 0.76 °C with respect to pre-industrial levels, according to the Intergovernmental Panel on Climate Change (IPCC), and this trend has not yet been stopped. The European Union considers it vital to prevent global warming from exceeding 2 °C with respect to pre-industrial levels, since this phenomenon has been proven to result in irreversible and potentially catastrophic changes. These climate changes are mainly caused by the emissions of greenhouse gasses related to human activities, and can be drastically reduced by employing energy systems, for both heating and cooling of buildings and for power production, characterized by high efficiency levels and/or based on renewable energy sources. This Special Issue, published in the journal Energies, includes 12 contributions from across the world, including a wide range of applications, such as HT-PEMFC, district heating systems, a thermoelectric generator for industrial waste, artificial ground freezing, nanofluids, and others.

Keywords

Research & information: general --- Technology: general issues --- Thermosyphon --- start-up characteristics --- hydrophilic and hydrophobic --- contact angle --- numerical modeling --- heat transfer --- artificial ground freezing --- underground station --- metro in Napoli --- GEO heating --- microwave heating --- microfluidics --- silicon --- chip integration --- industrial waste heat recovery --- thermoelectric generator --- hexagonal heat exchanger --- temperature distribution --- output performance --- combustor --- turbulent Prandtl approaches --- Navier–Stokes simulation --- thermal analysis --- axial permanent magnet coupling (APMC) --- eddy current --- finite element method (FEM) --- lumped-parameter thermal network (LPTN) --- energy efficiency --- induction heating --- resistance heating --- turnouts --- railway --- safety of rail traffic --- stock-rail --- switch-rail --- nanofluid --- entropy generation --- viscous dissipation --- magnetic heating --- high temperature proton exchange membrane fuel cell --- thermal management --- organic rankine cycle --- plate heat exchanger --- waste heat recovery --- cooling system --- thermodynamic modeling --- shielded metal arc welding --- welding spatter --- electrode --- electrical power --- welding time --- drying --- energy analysis --- exergy analysis --- multiphase model --- multispecies model --- thermodynamics --- Baltic Sea Region --- district heating --- DH network --- smart asset management --- smart grid --- Thermosyphon --- start-up characteristics --- hydrophilic and hydrophobic --- contact angle --- numerical modeling --- heat transfer --- artificial ground freezing --- underground station --- metro in Napoli --- GEO heating --- microwave heating --- microfluidics --- silicon --- chip integration --- industrial waste heat recovery --- thermoelectric generator --- hexagonal heat exchanger --- temperature distribution --- output performance --- combustor --- turbulent Prandtl approaches --- Navier–Stokes simulation --- thermal analysis --- axial permanent magnet coupling (APMC) --- eddy current --- finite element method (FEM) --- lumped-parameter thermal network (LPTN) --- energy efficiency --- induction heating --- resistance heating --- turnouts --- railway --- safety of rail traffic --- stock-rail --- switch-rail --- nanofluid --- entropy generation --- viscous dissipation --- magnetic heating --- high temperature proton exchange membrane fuel cell --- thermal management --- organic rankine cycle --- plate heat exchanger --- waste heat recovery --- cooling system --- thermodynamic modeling --- shielded metal arc welding --- welding spatter --- electrode --- electrical power --- welding time --- drying --- energy analysis --- exergy analysis --- multiphase model --- multispecies model --- thermodynamics --- Baltic Sea Region --- district heating --- DH network --- smart asset management --- smart grid

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