Performance evaluation of ceramic substrates for cooling applications in thermo-acoustic refrigerators
- Balonji, S., Tartibu, L. K., Jen, T. C.
- Authors: Balonji, S. , Tartibu, L. K. , Jen, T. C.
- Date: 2016
- Subjects: Thermo-acoustic , DeltaEc , Ceramic substrate
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/223689 , uj:22500 , Citation: Balonji, S., Tartibu, L.K. & Jen, T.C. 2016. Performance evaluation of ceramic substrates for cooling applications in thermo-acoustic refrigerators. International Conference on Sustainable Materials Processing and Manufacturing, SMPM 2017, 23-25 January 2017, Kruger National Park. DOI: 10.1016/j.promfg.2016.12.035. , ISSN: 2351-9789
- Description: Abstract: Thermo-acoustic refrigerators have recently drawn more attentions because of its eco-friendlier potential to address the current environmental issues resulting from the use of traditional vapour compression refrigerators. This paper aims at evaluating different selected ceramic substrates, with square pores, from the point of view of their performance as stack materials in the design of thermo-acoustic standing wave refrigerators. A 465 mm standing wave thermo-acoustic refrigerator was designed using numerical approximation provided by a modeling code called DELTAEC (Design Environment for Low-amplitude ThermoAcoustic Energy Conversion). The design developed focuses, in particular, on the effects of different ceramic substrate configurations (diameter, length, porosity and position) on the performance of the device. Meaningful comparison on the effect of the ceramic substrates configuration is provided in order to assess the performance of the device. Guidance on the identification and the selection of the best geometrical configurations of ceramic substrates are the main contributions of this work.
- Full Text:
- Authors: Balonji, S. , Tartibu, L. K. , Jen, T. C.
- Date: 2016
- Subjects: Thermo-acoustic , DeltaEc , Ceramic substrate
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/223689 , uj:22500 , Citation: Balonji, S., Tartibu, L.K. & Jen, T.C. 2016. Performance evaluation of ceramic substrates for cooling applications in thermo-acoustic refrigerators. International Conference on Sustainable Materials Processing and Manufacturing, SMPM 2017, 23-25 January 2017, Kruger National Park. DOI: 10.1016/j.promfg.2016.12.035. , ISSN: 2351-9789
- Description: Abstract: Thermo-acoustic refrigerators have recently drawn more attentions because of its eco-friendlier potential to address the current environmental issues resulting from the use of traditional vapour compression refrigerators. This paper aims at evaluating different selected ceramic substrates, with square pores, from the point of view of their performance as stack materials in the design of thermo-acoustic standing wave refrigerators. A 465 mm standing wave thermo-acoustic refrigerator was designed using numerical approximation provided by a modeling code called DELTAEC (Design Environment for Low-amplitude ThermoAcoustic Energy Conversion). The design developed focuses, in particular, on the effects of different ceramic substrate configurations (diameter, length, porosity and position) on the performance of the device. Meaningful comparison on the effect of the ceramic substrates configuration is provided in order to assess the performance of the device. Guidance on the identification and the selection of the best geometrical configurations of ceramic substrates are the main contributions of this work.
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Impact of ceramic substrates geometry on the performance of simple thermo-acoustic engines
- Authors: Tartibu, L. K.
- Date: 2018
- Subjects: Thermo-acoustic engine , Ceramic substrate , Stack
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/281021 , uj:30225 , Citation: Tartibu, L.K. 2018. Impact of ceramic substrates geometry on the performance of simple thermo-acoustic engines.
- Description: Abstract: This work experimentally examines the influence of the stack geometry and position on the performance of thermo-acoustic engines (TAE). Twenty cordierite honeycomb ceramic stacks with square pores and five different lengths (7 mm, 13 mm, 17 mm, 22 mm and 25 mm) were considered. Measurements were taken at seven different locations of the stack hot ends from the pressure antinode (closed end), namely 52 mm, 72 mm, 92 mm,112 mm, 132 mm, 152 mm and 172 mm respectively. The temperature difference across the stack and radiated sound pressure level at steady state are considered indicators of the performance of the device...
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- Authors: Tartibu, L. K.
- Date: 2018
- Subjects: Thermo-acoustic engine , Ceramic substrate , Stack
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/281021 , uj:30225 , Citation: Tartibu, L.K. 2018. Impact of ceramic substrates geometry on the performance of simple thermo-acoustic engines.
- Description: Abstract: This work experimentally examines the influence of the stack geometry and position on the performance of thermo-acoustic engines (TAE). Twenty cordierite honeycomb ceramic stacks with square pores and five different lengths (7 mm, 13 mm, 17 mm, 22 mm and 25 mm) were considered. Measurements were taken at seven different locations of the stack hot ends from the pressure antinode (closed end), namely 52 mm, 72 mm, 92 mm,112 mm, 132 mm, 152 mm and 172 mm respectively. The temperature difference across the stack and radiated sound pressure level at steady state are considered indicators of the performance of the device...
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