| Autor: |
Jae Hyun Noh, Taeck Hong Lee, Taesung Park, Taewan Kim, Young Jin Kang |
| Rok vydání: |
2014 |
| Předmět: |
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| Zdroj: |
Transactions of the Korean hydrogen and new energy society. 25:183-190 |
| ISSN: |
1738-7264 |
| DOI: |
10.7316/khnes.2014.25.2.183 |
| Popis: |
Our lab designs a heat exchangers for air and carbondioxide gas. Coolant is water, thus it is very difficult to determine heat transfer parameters in this gas-liquid system. Repeated experiments gives overdesign value 35%, overall heat transfer coefficient 33.8 (kcal/m2-hr-°C) for carbondioxide. Another series of experiments determine overdesign 18.7%, overall heat transfer coefficient 21.4 (kcal/m2-hr-°C) for Air. These parameters are in same range of literature. Overdesign is increasing as tube length increases, also increases as wall thickness of heat exchanger increases. To get proper fluid linear velocity in heat exchanger, we change the diameter of tube and finally we can have optimum fluid linear velocity in the heat exchanger. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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