Effect of zeolite naa additive on the absorption refrigeration unit
Absorption refrigeration has a potential to become among the most effective refrigeration unit due to low power consumption and eco-friendly benefits. However, the problem of relatively lower performance compared to the compressor refrigeration unit has increased the efforts for improvements includi...
| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
IOP Publishing
2020
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| Subjects: | |
| Online Access: | https://umpir.ump.edu.my/id/eprint/29947/ |
| _version_ | 1848827290619740160 |
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| author | B., Badarullah Abdul Halim, Abdul Razik Aainaa Izyan, Nafsun |
| author_facet | B., Badarullah Abdul Halim, Abdul Razik Aainaa Izyan, Nafsun |
| author_sort | B., Badarullah |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Absorption refrigeration has a potential to become among the most effective refrigeration unit due to low power consumption and eco-friendly benefits. However, the problem of relatively lower performance compared to the compressor refrigeration unit has increased the efforts for improvements including working fluid modification and addition of special additive. The purpose of this study was to investigate the effects by adding Zeolite NaA as an additive in the ammonia/water solution in the bench-scale absorption refrigeration system. The additive contains of certain chemicals such as sodium hydroxide, sodium aluminate and sodium metacilicate. The additive was added with different concentrations in the range of 0.2 mM to 0.001 M. From the experiment, the highest COP was calculated to be 6.3 with 0.001 M of additive, while the lowest cooling box temperature was recorded to be 20oC with 0.6 mM additive and 1.5 of COP. The ratio of ammonia and water solution was 30/70% by volume for the obtained result which could be subjected to further research. |
| first_indexed | 2025-11-15T03:58:22Z |
| format | Conference or Workshop Item |
| id | ump-29947 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T03:58:22Z |
| publishDate | 2020 |
| publisher | IOP Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-299472025-10-24T08:03:48Z https://umpir.ump.edu.my/id/eprint/29947/ Effect of zeolite naa additive on the absorption refrigeration unit B., Badarullah Abdul Halim, Abdul Razik Aainaa Izyan, Nafsun TP Chemical technology Absorption refrigeration has a potential to become among the most effective refrigeration unit due to low power consumption and eco-friendly benefits. However, the problem of relatively lower performance compared to the compressor refrigeration unit has increased the efforts for improvements including working fluid modification and addition of special additive. The purpose of this study was to investigate the effects by adding Zeolite NaA as an additive in the ammonia/water solution in the bench-scale absorption refrigeration system. The additive contains of certain chemicals such as sodium hydroxide, sodium aluminate and sodium metacilicate. The additive was added with different concentrations in the range of 0.2 mM to 0.001 M. From the experiment, the highest COP was calculated to be 6.3 with 0.001 M of additive, while the lowest cooling box temperature was recorded to be 20oC with 0.6 mM additive and 1.5 of COP. The ratio of ammonia and water solution was 30/70% by volume for the obtained result which could be subjected to further research. IOP Publishing 2020 Conference or Workshop Item PeerReviewed pdf en https://umpir.ump.edu.my/id/eprint/29947/1/11.%20Effect%20of%20zeolite%20naa%20additive%20on%20the%20absorption%20refrigeration%20unit.pdf B., Badarullah and Abdul Halim, Abdul Razik and Aainaa Izyan, Nafsun (2020) Effect of zeolite naa additive on the absorption refrigeration unit. In: IOP Conference Series: Materials Science and Engineering. Energy Security and Chemical Engineering Congress 2019, ESChE 2019 , 17-19 July 2019 , Kuala Lumpur, Malaysia. pp. 1-10., 736 (2). ISSN 1757-8981 (Print), 1757-899X (Online) (Published) https://doi.org/10.1088/1757-899X/736/2/022053 |
| spellingShingle | TP Chemical technology B., Badarullah Abdul Halim, Abdul Razik Aainaa Izyan, Nafsun Effect of zeolite naa additive on the absorption refrigeration unit |
| title | Effect of zeolite naa additive on the absorption refrigeration unit |
| title_full | Effect of zeolite naa additive on the absorption refrigeration unit |
| title_fullStr | Effect of zeolite naa additive on the absorption refrigeration unit |
| title_full_unstemmed | Effect of zeolite naa additive on the absorption refrigeration unit |
| title_short | Effect of zeolite naa additive on the absorption refrigeration unit |
| title_sort | effect of zeolite naa additive on the absorption refrigeration unit |
| topic | TP Chemical technology |
| url | https://umpir.ump.edu.my/id/eprint/29947/ https://umpir.ump.edu.my/id/eprint/29947/ |