Cooling jug physics
We discuss the physics of the pot-in-pot cooler. By balancing temperature decrease due to evaporation and temperature increase due to heat exchange, we find the equilibrium temperature of the pot. In this simplified model, the cooling jug acts as a psychrometer, and the theoretical prediction of our...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2017-01-01
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| Series: | Emergent Scientist |
| Subjects: | |
| Online Access: | https://emergent-scientist.edp-open.org/articles/emsci/full_html/2017/01/emsci170007/emsci170007.html |
| _version_ | 1818622680003248128 |
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| author | Luniachek Oleh Timchenko Ruslan Golubov Oleksiy |
| author_facet | Luniachek Oleh Timchenko Ruslan Golubov Oleksiy |
| author_sort | Luniachek Oleh |
| collection | DOAJ |
| description | We discuss the physics of the pot-in-pot cooler. By balancing temperature decrease due to evaporation and temperature increase due to heat exchange, we find the equilibrium temperature of the pot. In this simplified model, the cooling jug acts as a psychrometer, and the theoretical prediction of our model is in a good agreement with psychrometric tables. Next, we study dynamics of the jug cooling. The cooling rate is limited by water vapour diffusion through air, heat conduction through air, and heat conduction through the body of the jug. The derived rate of temperature decrease is in general agreement with the result of our experiment. In the end, we discuss some additional factors, such as capillary effects in the raw clay, water viscosity in the capillaries, and impact of complex shape of the jug. |
| first_indexed | 2024-12-16T18:29:01Z |
| format | Article |
| id | doaj.art-7f7dc8189a0e468094ea44b575888fa4 |
| institution | Directory Open Access Journal |
| issn | 2556-8779 |
| language | English |
| last_indexed | 2024-12-16T18:29:01Z |
| publishDate | 2017-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Emergent Scientist |
| spelling | doaj.art-7f7dc8189a0e468094ea44b575888fa42022-12-21T22:21:20ZengEDP SciencesEmergent Scientist2556-87792017-01-011510.1051/emsci/2017005emsci170007Cooling jug physicsLuniachek OlehTimchenko RuslanGolubov OleksiyWe discuss the physics of the pot-in-pot cooler. By balancing temperature decrease due to evaporation and temperature increase due to heat exchange, we find the equilibrium temperature of the pot. In this simplified model, the cooling jug acts as a psychrometer, and the theoretical prediction of our model is in a good agreement with psychrometric tables. Next, we study dynamics of the jug cooling. The cooling rate is limited by water vapour diffusion through air, heat conduction through air, and heat conduction through the body of the jug. The derived rate of temperature decrease is in general agreement with the result of our experiment. In the end, we discuss some additional factors, such as capillary effects in the raw clay, water viscosity in the capillaries, and impact of complex shape of the jug.https://emergent-scientist.edp-open.org/articles/emsci/full_html/2017/01/emsci170007/emsci170007.htmlphase transitionsphysical kinetics |
| spellingShingle | Luniachek Oleh Timchenko Ruslan Golubov Oleksiy Cooling jug physics Emergent Scientist phase transitions physical kinetics |
| title | Cooling jug physics |
| title_full | Cooling jug physics |
| title_fullStr | Cooling jug physics |
| title_full_unstemmed | Cooling jug physics |
| title_short | Cooling jug physics |
| title_sort | cooling jug physics |
| topic | phase transitions physical kinetics |
| url | https://emergent-scientist.edp-open.org/articles/emsci/full_html/2017/01/emsci170007/emsci170007.html |
| work_keys_str_mv | AT luniachekoleh coolingjugphysics AT timchenkoruslan coolingjugphysics AT golubovoleksiy coolingjugphysics |