Peer-reviewedCC BY 4.0Strojniški vestnik = Journal of Mechanical Engineering
Vapor Thermodynamics and Fluid Merit for Pulsating Heat Pipe
Abstract
In this communication, we discuss a theoretical description of the vapor-phase thermodynamics in the pulsating heat pipe (PHP), to be used in numerical simulations. We advance a theory based on simulation results that allows us to derive a theoretical expression for a dimensionless quantity describing the vapor properties of a given fluid. One can use this quantity to evaluate the fluid merit for use in the PHP. This theory is compared with the simulation results obtained using the PHP simulation code CASCO. We compare the merits of water, ethanol, and FC-72 and show that water possesses better properties for use in PHPs.
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BibTeX
@article{nikolayev2026vapor,
title = {{Vapor Thermodynamics and Fluid Merit for Pulsating Heat Pipe}},
author = {Vadim S Nikolayev and Iaroslav Nekrashevych},
journal = {Strojniški vestnik = Journal of Mechanical Engineering},
year = {2026},
month = sep,
doi = {10.5545/sv-jme.2026.1779},
url = {https://cea.hal.science/cea-05767058v1},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Vapor Thermodynamics and Fluid Merit for Pulsating Heat Pipe
AU - Vadim S Nikolayev
AU - Iaroslav Nekrashevych
PY - 2026
DA - 2026/09/23
JO - Strojniški vestnik = Journal of Mechanical Engineering
DO - 10.5545/sv-jme.2026.1779
UR - https://cea.hal.science/cea-05767058v1
AB - In this communication, we discuss a theoretical description of the vapor-phase thermodynamics in the pulsating heat pipe (PHP), to be used in numerical simulations. We advance a theory based on simulation results that allows us to derive a theoretical expression for a dimensionless quantity describing the vapor properties of a given fluid. One can use this quantity to evaluate the fluid merit for use in the PHP. This theory is compared with the simulation results obtained using the PHP simulation code CASCO. We compare the merits of water, ethanol, and FC-72 and show that water possesses better properties for use in PHPs.
SN - 0039-2480
SN - 2536-3948
ER -