Testing of High Thermal Cycling Stability of Low Strength Concrete as a Thermal Energy Storage Material
Concrete has the potential to become a solution for thermal energy storage (TES) integrated in concentrating solar power (CSP) systems due to its good thermal and mechanical properties and low cost of material. In this study, a low strength concrete (C20) is tested at high temperatures up to 600 °C....
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| Format: | Article |
| Language: | English |
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MDPI AG
2016-09-01
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| Series: | Applied Sciences |
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| Online Access: | http://www.mdpi.com/2076-3417/6/10/271 |
| _version_ | 1819152667599962112 |
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| author | Chao Wu Jianwen Pan Wen Zhong Feng Jin |
| author_facet | Chao Wu Jianwen Pan Wen Zhong Feng Jin |
| author_sort | Chao Wu |
| collection | DOAJ |
| description | Concrete has the potential to become a solution for thermal energy storage (TES) integrated in concentrating solar power (CSP) systems due to its good thermal and mechanical properties and low cost of material. In this study, a low strength concrete (C20) is tested at high temperatures up to 600 °C. Specimens are thermally cycled at temperatures in the range of 400–300 °C, 500–300 °C, and 600–300 °C, which TES can reach in operation. For comparison, specimens also cycled at temperature in the range of 400–25 °C (room temperature), 500–25 °C, and 600–25 °C. It is found from the test results that cracks are not observed on the surfaces of concrete specimens until the temperature is elevated up to 500 °C. There is mechanical deterioration of concrete after exposure to high temperature, especially to high thermal cycles. The residual compressive strength of concrete after 10 thermal cycles between 600 °C and 300 °C is about 58.3%, but the specimens remain stable without spalling, indicating possible use of low strength concrete as a TES material. |
| first_indexed | 2024-12-22T14:52:56Z |
| format | Article |
| id | doaj.art-14174e701b634bb0b950f13a25a228b5 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-22T14:52:56Z |
| publishDate | 2016-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-14174e701b634bb0b950f13a25a228b52022-12-21T18:22:17ZengMDPI AGApplied Sciences2076-34172016-09-0161027110.3390/app6100271app6100271Testing of High Thermal Cycling Stability of Low Strength Concrete as a Thermal Energy Storage MaterialChao Wu0Jianwen Pan1Wen Zhong2Feng Jin3State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, ChinaState Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, ChinaState Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, ChinaState Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, ChinaConcrete has the potential to become a solution for thermal energy storage (TES) integrated in concentrating solar power (CSP) systems due to its good thermal and mechanical properties and low cost of material. In this study, a low strength concrete (C20) is tested at high temperatures up to 600 °C. Specimens are thermally cycled at temperatures in the range of 400–300 °C, 500–300 °C, and 600–300 °C, which TES can reach in operation. For comparison, specimens also cycled at temperature in the range of 400–25 °C (room temperature), 500–25 °C, and 600–25 °C. It is found from the test results that cracks are not observed on the surfaces of concrete specimens until the temperature is elevated up to 500 °C. There is mechanical deterioration of concrete after exposure to high temperature, especially to high thermal cycles. The residual compressive strength of concrete after 10 thermal cycles between 600 °C and 300 °C is about 58.3%, but the specimens remain stable without spalling, indicating possible use of low strength concrete as a TES material.http://www.mdpi.com/2076-3417/6/10/271low strength concretethermal energy storagethermal cyclingsolar energy |
| spellingShingle | Chao Wu Jianwen Pan Wen Zhong Feng Jin Testing of High Thermal Cycling Stability of Low Strength Concrete as a Thermal Energy Storage Material Applied Sciences low strength concrete thermal energy storage thermal cycling solar energy |
| title | Testing of High Thermal Cycling Stability of Low Strength Concrete as a Thermal Energy Storage Material |
| title_full | Testing of High Thermal Cycling Stability of Low Strength Concrete as a Thermal Energy Storage Material |
| title_fullStr | Testing of High Thermal Cycling Stability of Low Strength Concrete as a Thermal Energy Storage Material |
| title_full_unstemmed | Testing of High Thermal Cycling Stability of Low Strength Concrete as a Thermal Energy Storage Material |
| title_short | Testing of High Thermal Cycling Stability of Low Strength Concrete as a Thermal Energy Storage Material |
| title_sort | testing of high thermal cycling stability of low strength concrete as a thermal energy storage material |
| topic | low strength concrete thermal energy storage thermal cycling solar energy |
| url | http://www.mdpi.com/2076-3417/6/10/271 |
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