Mathematical modelling and parameter optimization of pulsating heat pipes

Yang, Xin-She; Karamanoglu, Mehmet; Luan, Tao; Koziel, Slawomir

doi:10.1016/j.jocs.2013.12.003

Cited by 17 publications

(4 citation statements)

References 33 publications

(48 reference statements)

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“…There have been several attempts to solve the mathematical model using different numerical methods. Parametric optimization using the firefly algorithm shows a range of the parametric value with some degree of variation, which matches that of the analytical values obtained from the simulations [5]. A similar model has been employed with the dynamic liquid film thickness with the brute force simulation to identify the temporal characteristics [9].…”

Section: Resultssupporting

confidence: 59%

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Pulsating Heat Pipe: Operation in Nonlinear Regime

Kumar¹,

Singh²,

Nadeem³

2022

Proceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering

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The global attention toward miniaturization technologies puts compact electronic devices at the core of thermal management research. The high compact density electronic devices are very high heat-dissipating systems. The removal of this high heat flux is imperative to maintain the reliability and durability of these devices. Among many heat removal systems, Pulsating Heat Pipes (PHP) have shown both their standalone and hybrid utility. Their miniature size with wickless structure and performance in different operating conditions put them as a promising heat removing agent in small area applications, be it terrestrial or space. Despite their simple geometry, PHPs exhibit complex dynamical characteristics due to the multiphysics processes involved during the transient operation. The complex dynamics is not easy to explain while analyzing the system by the mathematical models, used to obtain operating characteristics. The interplay between the multiphysics interactions makes the system highly nonlinear, which is very sensitive to the initial conditions. Therefore, the fundamental problem lies in the understanding of the dynamics in the nonlinear regime. Nonlinear stability analysis has been carried out on a state-of-the-art model. The oscillatory behavior of the liquid slug is modeled similarly to the springmass system. The parameters related to several thermodynamic processes have been varied to capture the change in the dynamics using codimension one and two analyses. The system of non-linear differential equations, containing the conservation equations for the liquid slug and vapor plug separately, has been solved numerically using MATCONT. Bifurcation analysis shows the sudden changes in the dynamics while varying the parameters and the start-up operating conditions also match with the literature.

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Section: Resultssupporting

confidence: 59%

“…On an individual level, each of this technology has its advantage for a specific application. These technologies can be used on a stand-alone basis or on a hybrid basis, where two or more such technologies are coupled with each other [5]. The literature shows that hybrid cooling technologies are more efficient than stand-alone [6].…”

Section: Introductionmentioning

confidence: 99%

Pulsating Heat Pipe: Operation in Nonlinear Regime

Kumar¹,

Singh²,

Nadeem³

2022

Proceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering

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“…Actual systems are usually characterized by a large number of parameters and the identification thereof is often difficult [ 30 , 31 , 32 ]. Two experiments consisting in straw combustion were performed using the analyzed installation in order to identify 10 unknown values of model parameters.…”

Section: The Identification Of Model Parametersmentioning

confidence: 99%

Modeling and simulation of heat production in a local heating installation including a batch-fired straw boiler with a buffer tank

Kreft

2020

Heliyon

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“…In this context we have seen a lot of interests in the literature about the experimental and theoretical investigation of the heat pipes. [25][26][27][28] 3…”

Section: Establishing the Correct Pressure Equationmentioning

confidence: 99%

Numerical analysis and simulation of the heat recovery from wastewater using heat exchanger

et al. 2018

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The problem of global warming and the reduction of energy consumption have led to an evolutionary progress of research directed towards finding as many solutions as possible to these environmental issues. Firstly, this paper presents the background information on the role of wastewater as a source of heat for the future. Next, the paper includes the analysis elements that define a system for recovering thermal energy from wastewater. The main objective was to identify the parameters that determine the heat transfer. It has started from a conceptual model of the technological system that involves inputs and outputs characterized by technological, physical-chemical, measurable or imposed properties. In the second part this paper presents a numerical model elaborated for the analysis and simulation of the main physical processes, the mass and heat transfer, which underlie the operation of the heat pipe heat exchangers (HPHE). The numerical simulation of heat and mass transfer in the HPHE is computed by using Delphi 7 solver program. This program contained a series of sub-programs for the meshing of the field occupied by the HPHE, another subprogram for solving the meshing equations and the third for post processing. The design of HPHE is the key to provide a heat exchanger system to work proficient as expected. Finally, the result is used to optimize and improving heat recovery systems of the increasing demand for energy efficiency in residential buildings or industry.

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Mathematical modelling and parameter optimization of pulsating heat pipes

Cited by 17 publications

References 33 publications

Pulsating Heat Pipe: Operation in Nonlinear Regime

Pulsating Heat Pipe: Operation in Nonlinear Regime

Modeling and simulation of heat production in a local heating installation including a batch-fired straw boiler with a buffer tank

Numerical analysis and simulation of the heat recovery from wastewater using heat exchanger

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