January 2024
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9 Reads
Frontiers in Heat and Mass Transfer
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January 2024
·
9 Reads
Frontiers in Heat and Mass Transfer
September 2021
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83 Reads
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9 Citations
Journal of Thermal Science and Engineering Applications
This present paper investigates the potential of loop heat pipe (LHP), with respect to technological merits and application niche, in automotive thermal management. Broadly, LHP design and applicability for hot spot cooling in electronics (local dissipation), and for heat transport over longer distances (remote dissipation) has been proposed and discussed in detail. The basic module in these applications includes loop heat pipe with different shapes and sizing factors. Two types of LHP design have being tested and results discussed. The miniature version, with 10 mm thick and flat evaporator, for cooling ECU with 70 W chipset while keeping source temperature below 100 °C limit was evaluated. Two larger versions with cylindrical evaporator, 25 mm diameter & 150 mm length, and heat transfer distances of 250 mm and 1000 mm respectively were tested for power electronics and battery cooling, with more than 500 W transport capabilities in gravity field. In conclusions, loop heat pipes will provide an energy efficient passive thermal control solution for next generation low emission automotive, particularly for electric vehicles which have high level electrifications and more definitive cooling requirements.
... Hence, efforts are focused on active thermal management-based water single-phase cooling systems such as cold plates and air convection. In addition, Research is oriented toward passive two-phase cooling systems such as gravity-assisted heat pipes (thermosyphons) [5], capillary heat pipes including wicks (grooves, screen meshes, or sintered metal power) [6], and oscillating heat pipes [7], vapor chambers [8][9], and loop heat pipes (LHP) [10][11][12][13][14][15][16]. Recent works now focus on hybrid cooling techniques mixing cold plates and heat pipes or loop heat pipe technologies [17]. ...
September 2021
Journal of Thermal Science and Engineering Applications