CFD modelling and parametric study of small scale Alpha type Stirling Cryocooler

Hassan Ahmed; Ahmad K. Almajri; Saad Mahmoud; Raya Al-Dadah; Abdalqader Ahmad

doi:10.1016/j.egypro.2017.12.547

CFD modelling and parametric study of small scale Alpha type Stirling Cryocooler

Hassan Ahmed, Ahmad K. Almajri^*, Saad Mahmoud, Raya Al-Dadah, Abdalqader Ahmad

^*Corresponding author for this work

Mechanical Engineering

Research output: Contribution to journal › Conference article › peer-review

4 Citations (Scopus)

144 Downloads (Pure)

Abstract

In this paper, a small-scale Stirling Cryocooler is developed using computational fluid dynamics through COMSOL Multiphysics 5.3. The model has been validated using experimental data from an Alpha type Stirling engine reported in the literature. Extensive parametric study was carried out to investigate the effect of various parameters such as operating speed and phase angle with the aim of optimizing the Cryocooler design parameters and operating conditions. Results showed that there exists an optimal value for the regenerator porosity 50%, phase angle 90⁰ and heat exchanger lengths 142mm where 455W cooling power was obtained at heat sink temperature of 193K. Whereas increasing the speed and pressure resulted in an increase in cooling power at the heat sink.

Original language	English
Pages (from-to)	1668-1673
Number of pages	6
Journal	Energy Procedia
Volume	142
DOIs	https://doi.org/10.1016/j.egypro.2017.12.547
Publication status	Published - 31 Jan 2018
Event	9th International Conference on Applied Energy, ICAE 2017 - Cardiff, United Kingdom Duration: 21 Aug 2017 → 24 Aug 2017

Keywords

CFD
Heat transfer
Parametric Study
Regenerator
Stirling Cryocooler

ASJC Scopus subject areas

General Energy

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Cite this

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title = "CFD modelling and parametric study of small scale Alpha type Stirling Cryocooler",

abstract = "In this paper, a small-scale Stirling Cryocooler is developed using computational fluid dynamics through COMSOL Multiphysics 5.3. The model has been validated using experimental data from an Alpha type Stirling engine reported in the literature. Extensive parametric study was carried out to investigate the effect of various parameters such as operating speed and phase angle with the aim of optimizing the Cryocooler design parameters and operating conditions. Results showed that there exists an optimal value for the regenerator porosity 50%, phase angle 900 and heat exchanger lengths 142mm where 455W cooling power was obtained at heat sink temperature of 193K. Whereas increasing the speed and pressure resulted in an increase in cooling power at the heat sink.",

keywords = "CFD, Heat transfer, Parametric Study, Regenerator, Stirling Cryocooler",

author = "Hassan Ahmed and Almajri, {Ahmad K.} and Saad Mahmoud and Raya Al-Dadah and Abdalqader Ahmad",

year = "2018",

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day = "31",

doi = "10.1016/j.egypro.2017.12.547",

language = "English",

volume = "142",

pages = "1668--1673",

journal = "Energy Procedia",

issn = "1876-6102",

publisher = "Elsevier Korea",

note = "9th International Conference on Applied Energy, ICAE 2017 ; Conference date: 21-08-2017 Through 24-08-2017",

}

TY - JOUR

T1 - CFD modelling and parametric study of small scale Alpha type Stirling Cryocooler

AU - Ahmed, Hassan

AU - Almajri, Ahmad K.

AU - Mahmoud, Saad

AU - Al-Dadah, Raya

AU - Ahmad, Abdalqader

PY - 2018/1/31

Y1 - 2018/1/31

N2 - In this paper, a small-scale Stirling Cryocooler is developed using computational fluid dynamics through COMSOL Multiphysics 5.3. The model has been validated using experimental data from an Alpha type Stirling engine reported in the literature. Extensive parametric study was carried out to investigate the effect of various parameters such as operating speed and phase angle with the aim of optimizing the Cryocooler design parameters and operating conditions. Results showed that there exists an optimal value for the regenerator porosity 50%, phase angle 900 and heat exchanger lengths 142mm where 455W cooling power was obtained at heat sink temperature of 193K. Whereas increasing the speed and pressure resulted in an increase in cooling power at the heat sink.

AB - In this paper, a small-scale Stirling Cryocooler is developed using computational fluid dynamics through COMSOL Multiphysics 5.3. The model has been validated using experimental data from an Alpha type Stirling engine reported in the literature. Extensive parametric study was carried out to investigate the effect of various parameters such as operating speed and phase angle with the aim of optimizing the Cryocooler design parameters and operating conditions. Results showed that there exists an optimal value for the regenerator porosity 50%, phase angle 900 and heat exchanger lengths 142mm where 455W cooling power was obtained at heat sink temperature of 193K. Whereas increasing the speed and pressure resulted in an increase in cooling power at the heat sink.

KW - CFD

KW - Heat transfer

KW - Parametric Study

KW - Regenerator

KW - Stirling Cryocooler

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U2 - 10.1016/j.egypro.2017.12.547

DO - 10.1016/j.egypro.2017.12.547

M3 - Conference article

AN - SCOPUS:85041519058

SN - 1876-6102

VL - 142

SP - 1668

EP - 1673

JO - Energy Procedia

JF - Energy Procedia

T2 - 9th International Conference on Applied Energy, ICAE 2017

Y2 - 21 August 2017 through 24 August 2017

ER -

CFD modelling and parametric study of small scale Alpha type Stirling Cryocooler

Abstract

Keywords

ASJC Scopus subject areas

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