Lumped parameter network simulation of a Loop Heat Pipe for energy management systems in full electric vehicles

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Loop heat pipes (LHP) and other two-phase passive thermal devices, such as heat pipe loops (HPL), represent a very attractive solution for the energy management of systems characterized by a distributed presence of heating and cooling zones and by the needs of fast start-up, reliability, low cost and lightness. Even if the usual application for these devices is in the space sector, there could be a potential significant application for the automotive industry, for the development of embedded thermal networks for full electric vehicles (FEV), in order for example to recover the waste heat for cabin heating and cooling or to improve the aerodynamic efficiency. In the present investigation, the possibility to implement a new thermal control for an electric vehicle comprising from heat pumps (HP) and LHP, is here evaluated. In more detail, a 1-D lumped parameter model (LPM) that is able to predict the transient behaviour of a LHP in response of varying boundary and initial conditions, is developed and validated against literature experimental data. A novel methodology for treating numerically the condenser is proposed and validated for three different working fluids. An extensive parametric analysis is also conducted, showing the robustness of the thermal solution for different conditions and proving the possibility of using the proposed numerical code both for feasibility studies and for optimization purposes. A feasibility study utilizing the proposed model is also conducted and the results indicate that an array of LHPs can effectively transport heat from the motor section of the vehicle to the underbody, reducing significantly the aerodynamic losses.

Original languageEnglish
Pages (from-to)617-629
Number of pages13
JournalApplied Thermal Engineering
Volume141
DOIs
Publication statusPublished - 5 Jun 2018

Fingerprint

Lumped parameter networks
Energy management systems
Heat pipes
Electric vehicles
Aerodynamics
Cabins (aircraft)
Cooling
Heating
Waste heat
Energy management
Automotive industry
Hot Temperature
Pumps
Fluids

Bibliographical note

© 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/

Keywords

  • Electric vehicle
  • Loop Heat Pipe
  • Lumped parameter
  • Thermal management

Cite this

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title = "Lumped parameter network simulation of a Loop Heat Pipe for energy management systems in full electric vehicles",
abstract = "Loop heat pipes (LHP) and other two-phase passive thermal devices, such as heat pipe loops (HPL), represent a very attractive solution for the energy management of systems characterized by a distributed presence of heating and cooling zones and by the needs of fast start-up, reliability, low cost and lightness. Even if the usual application for these devices is in the space sector, there could be a potential significant application for the automotive industry, for the development of embedded thermal networks for full electric vehicles (FEV), in order for example to recover the waste heat for cabin heating and cooling or to improve the aerodynamic efficiency. In the present investigation, the possibility to implement a new thermal control for an electric vehicle comprising from heat pumps (HP) and LHP, is here evaluated. In more detail, a 1-D lumped parameter model (LPM) that is able to predict the transient behaviour of a LHP in response of varying boundary and initial conditions, is developed and validated against literature experimental data. A novel methodology for treating numerically the condenser is proposed and validated for three different working fluids. An extensive parametric analysis is also conducted, showing the robustness of the thermal solution for different conditions and proving the possibility of using the proposed numerical code both for feasibility studies and for optimization purposes. A feasibility study utilizing the proposed model is also conducted and the results indicate that an array of LHPs can effectively transport heat from the motor section of the vehicle to the underbody, reducing significantly the aerodynamic losses.",
keywords = "Electric vehicle, Loop Heat Pipe, Lumped parameter, Thermal management",
author = "Marco Bernagozzi and Stene Charmer and Anastasios Georgoulas and Ileana Malavasi and Nicolas Mich{\`e} and Marco Marengo",
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Lumped parameter network simulation of a Loop Heat Pipe for energy management systems in full electric vehicles. / Bernagozzi, Marco; Charmer, Stene; Georgoulas, Anastasios; Malavasi, Ileana; Michè, Nicolas; Marengo, Marco.

In: Applied Thermal Engineering, Vol. 141, 05.06.2018, p. 617-629.

Research output: Contribution to journalArticleResearchpeer-review

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T1 - Lumped parameter network simulation of a Loop Heat Pipe for energy management systems in full electric vehicles

AU - Bernagozzi, Marco

AU - Charmer, Stene

AU - Georgoulas, Anastasios

AU - Malavasi, Ileana

AU - Michè, Nicolas

AU - Marengo, Marco

N1 - © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/

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N2 - Loop heat pipes (LHP) and other two-phase passive thermal devices, such as heat pipe loops (HPL), represent a very attractive solution for the energy management of systems characterized by a distributed presence of heating and cooling zones and by the needs of fast start-up, reliability, low cost and lightness. Even if the usual application for these devices is in the space sector, there could be a potential significant application for the automotive industry, for the development of embedded thermal networks for full electric vehicles (FEV), in order for example to recover the waste heat for cabin heating and cooling or to improve the aerodynamic efficiency. In the present investigation, the possibility to implement a new thermal control for an electric vehicle comprising from heat pumps (HP) and LHP, is here evaluated. In more detail, a 1-D lumped parameter model (LPM) that is able to predict the transient behaviour of a LHP in response of varying boundary and initial conditions, is developed and validated against literature experimental data. A novel methodology for treating numerically the condenser is proposed and validated for three different working fluids. An extensive parametric analysis is also conducted, showing the robustness of the thermal solution for different conditions and proving the possibility of using the proposed numerical code both for feasibility studies and for optimization purposes. A feasibility study utilizing the proposed model is also conducted and the results indicate that an array of LHPs can effectively transport heat from the motor section of the vehicle to the underbody, reducing significantly the aerodynamic losses.

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