Development of a mathematical model and simulation of mass transfer of solar ethanol distillation in modified brewery tank
| Autor: | Jaruwat Jareanjit, Kanda Wongwailikhit, J. Tiansuwan, P. Siangsukone |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Ethanol
Mixing (process engineering) Energy Engineering and Power Technology Thermodynamics Industrial and Manufacturing Engineering law.invention Fossil fuel consumption chemistry.chemical_compound chemistry law Homogeneous Mass transfer Heat transfer Environmental science Stage (hydrology) Distillation |
| Zdroj: | Applied Thermal Engineering. 73:723-731 |
| ISSN: | 1359-4311 |
| Popis: | The objective of this study was to develop a mathematical model of the mass transfer in a modified brewery tank for producing fuel ethanol. To reduce fossil fuel consumption, 50 flat-plate solar collectors were used as the heat source for the two stages of a distillation process for increasing the ethanol concentration. A 350-L distillation tank with 10%v/v (Stage 1) and a 70-L distillation tank with 40%v/v (Stage 2) were employed in the experiment used to develop the mathematical model of the mass transfer. A difference of approximately 10% was observed between the model predictions and the experimental results of the distillation product of Stage 1, whereas the predicted concentration was approximately 30% higher than that of the experiment, although this was reduced to approximately 5% by homogeneous mixing of the solution. Regarding the distillation process of Stage 2, there was approximately 10% difference between the predicted and experimental products, and approximately 3% difference between the predicted and experimental concentrations. The differences are attributed to errors in the heat transfer rate prediction of the model, which varies directly with the solar radiation values. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect