Numerical Analysis with Experimental Validation of Single-Phase Fluid Flow in a Dimple Pattern Heat Exchanger Channel

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MOČNIK, Urban ;BLAGOJEVIČ, Bogdan ;MUHIČ, Simon .
Numerical Analysis with Experimental Validation of Single-Phase Fluid Flow in a Dimple Pattern Heat Exchanger Channel. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 66, n.9, p. 544-553, september 2020. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/sl/article/numerical-analysis-with-experimental-validation-of-single-phase-fluid-flow-in-a-dimple-pattern-heat-exchanger-channel/>. Date accessed: 03 dec. 2020. 
doi:http://dx.doi.org/10.5545/sv-jme.2020.6776.
Močnik, U., Blagojevič, B., & Muhič, S.
(2020).
Numerical Analysis with Experimental Validation of Single-Phase Fluid Flow in a Dimple Pattern Heat Exchanger Channel.
Strojniški vestnik - Journal of Mechanical Engineering, 66(9), 544-553.
doi:http://dx.doi.org/10.5545/sv-jme.2020.6776
@article{sv-jmesv-jme.2020.6776,
	author = {Urban  Močnik and Bogdan  Blagojevič and Simon  Muhič},
	title = {Numerical Analysis with Experimental Validation of Single-Phase Fluid Flow in a Dimple Pattern Heat Exchanger Channel},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {66},
	number = {9},
	year = {2020},
	keywords = {heat exchanger, dimple pattern, pressure drop, computational fluid dynamics, turbulence models},
	abstract = {A plate heat exchanger with a dimple pattern heat plate has a large number of dimples. The shape of dimples defines the characteristics of the plate heat exchanger. Although such heat exchangers have become increasingly popular due to their beneficial characteristics, knowledge of the flow characteristics in such kind of channel is poor. A good knowledge of the flow conditions inside of such channel is crucial for the successful and efficient development of new products. In this paper single-phase water flow in dimple pattern plate heat exchanger was investigated with application of computational fluid dynamics and laboratory experiments. Numerical analysis was performed with two turbulence models, Realizable - with enhanced wall treatment function and - SST. The first predicts a slightly smaller pressure drop and the second slightly larger compared to the results of laboratory measurements. Our research found that despite the relatively low velocity of the fluid, turbulent flow occurs in the channel due to its shape. We also found that there are two different flow regimes in the micro plate heat exchanger channel. The first regime is the regime that dominates the heat transfer, and the second is the regime where a recirculation zone appears behind the brazing point, which reduces the surface for heat transfer. The size of the second regime does not change significantly with the velocity of the fluid in the volume considered.},
	issn = {0039-2480},	pages = {544-553},	doi = {10.5545/sv-jme.2020.6776},
	url = {https://www.sv-jme.eu/sl/article/numerical-analysis-with-experimental-validation-of-single-phase-fluid-flow-in-a-dimple-pattern-heat-exchanger-channel/}
}
Močnik, U.,Blagojevič, B.,Muhič, S.
2020 September 66. Numerical Analysis with Experimental Validation of Single-Phase Fluid Flow in a Dimple Pattern Heat Exchanger Channel. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 66:9
%A Močnik, Urban 
%A Blagojevič, Bogdan 
%A Muhič, Simon 
%D 2020
%T Numerical Analysis with Experimental Validation of Single-Phase Fluid Flow in a Dimple Pattern Heat Exchanger Channel
%B 2020
%9 heat exchanger, dimple pattern, pressure drop, computational fluid dynamics, turbulence models
%! Numerical Analysis with Experimental Validation of Single-Phase Fluid Flow in a Dimple Pattern Heat Exchanger Channel
%K heat exchanger, dimple pattern, pressure drop, computational fluid dynamics, turbulence models
%X A plate heat exchanger with a dimple pattern heat plate has a large number of dimples. The shape of dimples defines the characteristics of the plate heat exchanger. Although such heat exchangers have become increasingly popular due to their beneficial characteristics, knowledge of the flow characteristics in such kind of channel is poor. A good knowledge of the flow conditions inside of such channel is crucial for the successful and efficient development of new products. In this paper single-phase water flow in dimple pattern plate heat exchanger was investigated with application of computational fluid dynamics and laboratory experiments. Numerical analysis was performed with two turbulence models, Realizable - with enhanced wall treatment function and - SST. The first predicts a slightly smaller pressure drop and the second slightly larger compared to the results of laboratory measurements. Our research found that despite the relatively low velocity of the fluid, turbulent flow occurs in the channel due to its shape. We also found that there are two different flow regimes in the micro plate heat exchanger channel. The first regime is the regime that dominates the heat transfer, and the second is the regime where a recirculation zone appears behind the brazing point, which reduces the surface for heat transfer. The size of the second regime does not change significantly with the velocity of the fluid in the volume considered.
%U https://www.sv-jme.eu/sl/article/numerical-analysis-with-experimental-validation-of-single-phase-fluid-flow-in-a-dimple-pattern-heat-exchanger-channel/
%0 Journal Article
%R 10.5545/sv-jme.2020.6776
%& 544
%P 10
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 66
%N 9
%@ 0039-2480
%8 2020-09-02
%7 2020-09-02
Močnik, Urban, Bogdan  Blagojevič, & Simon  Muhič.
"Numerical Analysis with Experimental Validation of Single-Phase Fluid Flow in a Dimple Pattern Heat Exchanger Channel." Strojniški vestnik - Journal of Mechanical Engineering [Online], 66.9 (2020): 544-553. Web.  03 Dec. 2020
TY  - JOUR
AU  - Močnik, Urban 
AU  - Blagojevič, Bogdan 
AU  - Muhič, Simon 
PY  - 2020
TI  - Numerical Analysis with Experimental Validation of Single-Phase Fluid Flow in a Dimple Pattern Heat Exchanger Channel
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2020.6776
KW  - heat exchanger, dimple pattern, pressure drop, computational fluid dynamics, turbulence models
N2  - A plate heat exchanger with a dimple pattern heat plate has a large number of dimples. The shape of dimples defines the characteristics of the plate heat exchanger. Although such heat exchangers have become increasingly popular due to their beneficial characteristics, knowledge of the flow characteristics in such kind of channel is poor. A good knowledge of the flow conditions inside of such channel is crucial for the successful and efficient development of new products. In this paper single-phase water flow in dimple pattern plate heat exchanger was investigated with application of computational fluid dynamics and laboratory experiments. Numerical analysis was performed with two turbulence models, Realizable - with enhanced wall treatment function and - SST. The first predicts a slightly smaller pressure drop and the second slightly larger compared to the results of laboratory measurements. Our research found that despite the relatively low velocity of the fluid, turbulent flow occurs in the channel due to its shape. We also found that there are two different flow regimes in the micro plate heat exchanger channel. The first regime is the regime that dominates the heat transfer, and the second is the regime where a recirculation zone appears behind the brazing point, which reduces the surface for heat transfer. The size of the second regime does not change significantly with the velocity of the fluid in the volume considered.
UR  - https://www.sv-jme.eu/sl/article/numerical-analysis-with-experimental-validation-of-single-phase-fluid-flow-in-a-dimple-pattern-heat-exchanger-channel/
@article{{sv-jme}{sv-jme.2020.6776},
	author = {Močnik, U., Blagojevič, B., Muhič, S.},
	title = {Numerical Analysis with Experimental Validation of Single-Phase Fluid Flow in a Dimple Pattern Heat Exchanger Channel},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {66},
	number = {9},
	year = {2020},
	doi = {10.5545/sv-jme.2020.6776},
	url = {https://www.sv-jme.eu/sl/article/numerical-analysis-with-experimental-validation-of-single-phase-fluid-flow-in-a-dimple-pattern-heat-exchanger-channel/}
}
TY  - JOUR
AU  - Močnik, Urban 
AU  - Blagojevič, Bogdan 
AU  - Muhič, Simon 
PY  - 2020/09/02
TI  - Numerical Analysis with Experimental Validation of Single-Phase Fluid Flow in a Dimple Pattern Heat Exchanger Channel
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 66, No 9 (2020): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2020.6776
KW  - heat exchanger, dimple pattern, pressure drop, computational fluid dynamics, turbulence models
N2  - A plate heat exchanger with a dimple pattern heat plate has a large number of dimples. The shape of dimples defines the characteristics of the plate heat exchanger. Although such heat exchangers have become increasingly popular due to their beneficial characteristics, knowledge of the flow characteristics in such kind of channel is poor. A good knowledge of the flow conditions inside of such channel is crucial for the successful and efficient development of new products. In this paper single-phase water flow in dimple pattern plate heat exchanger was investigated with application of computational fluid dynamics and laboratory experiments. Numerical analysis was performed with two turbulence models, Realizable - with enhanced wall treatment function and - SST. The first predicts a slightly smaller pressure drop and the second slightly larger compared to the results of laboratory measurements. Our research found that despite the relatively low velocity of the fluid, turbulent flow occurs in the channel due to its shape. We also found that there are two different flow regimes in the micro plate heat exchanger channel. The first regime is the regime that dominates the heat transfer, and the second is the regime where a recirculation zone appears behind the brazing point, which reduces the surface for heat transfer. The size of the second regime does not change significantly with the velocity of the fluid in the volume considered.
UR  - https://www.sv-jme.eu/sl/article/numerical-analysis-with-experimental-validation-of-single-phase-fluid-flow-in-a-dimple-pattern-heat-exchanger-channel/
Močnik, Urban, Blagojevič, Bogdan, AND Muhič, Simon.
"Numerical Analysis with Experimental Validation of Single-Phase Fluid Flow in a Dimple Pattern Heat Exchanger Channel" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 66 Number 9 (02 September 2020)

Avtorji

Inštitucije

  • University of Novo mesto, Faculty of Mechanical Engineering, Slovenia 2Danfoss Trata d.o.o., Slovenia 1
  • Plinovodi d.o.o., Slovenia 2
  • University of Novo mesto, Faculty of Mechanical Engineering, Slovenia SIMUTEH s.p., Slovenia 3

Informacije o papirju

Strojniški vestnik - Journal of Mechanical Engineering 66(2020)9, 544-553

https://doi.org/10.5545/sv-jme.2020.6776

A plate heat exchanger with a dimple pattern heat plate has a large number of dimples. The shape of dimples defines the characteristics of the plate heat exchanger. Although such heat exchangers have become increasingly popular due to their beneficial characteristics, knowledge of the flow characteristics in such kind of channel is poor. A good knowledge of the flow conditions inside of such channel is crucial for the successful and efficient development of new products. In this paper single-phase water flow in dimple pattern plate heat exchanger was investigated with application of computational fluid dynamics and laboratory experiments. Numerical analysis was performed with two turbulence models, Realizable - with enhanced wall treatment function and - SST. The first predicts a slightly smaller pressure drop and the second slightly larger compared to the results of laboratory measurements. Our research found that despite the relatively low velocity of the fluid, turbulent flow occurs in the channel due to its shape. We also found that there are two different flow regimes in the micro plate heat exchanger channel. The first regime is the regime that dominates the heat transfer, and the second is the regime where a recirculation zone appears behind the brazing point, which reduces the surface for heat transfer. The size of the second regime does not change significantly with the velocity of the fluid in the volume considered.

heat exchanger, dimple pattern, pressure drop, computational fluid dynamics, turbulence models