Abstract
The fundamental heat transfer and humidity control processes are considered and the polytropic process of heating air while modifying the humidity contents is analyzed using the optimal control theory. The aim is to investigate optimal ways of heating and humidifying the air while producing minimum entropy. Heating and humidification are considered here in a counter current interaction between dry, cold outdoor air and hot water in a device purposely used for bringing air in contact with water. This study is based on the theory of optimal control and its aim is to find the optimal parameters based on the minimum entropy production associated to the process. We use optimal control theory to analyze how varying the contact surface between water and air achieves the desired temperature and humidity of the air at the exit of the humidifying device. The optimal water temperature and amount at the inlet are also determined.
| Original language | English |
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| Journal | Polytechnical University of Bucharest. Scientific Bulletin. Series D: Mechanical Engineering |
| Volume | 73 |
| Issue number | 3 |
| Pages (from-to) | 3-16 |
| ISSN | 1454-2358 |
| Publication status | Published - 2011 |