Energy and exergy analysis of industrial fluidized bed drying of paddy
| Autor: | Mohd Salleh Punan, Norashikin Abdul Aziz, Md. Sazzat Hossain Sarker, Mohd Nordin Ibrahim |
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| Rok vydání: | 2015 |
| Předmět: |
Exergy
Engineering Waste management business.industry Mechanical Engineering media_common.quotation_subject Energy balance Environmental engineering Second law of thermodynamics Building and Construction Energy consumption Pollution Industrial and Manufacturing Engineering General Energy Fluidized bed drying Fluidized bed Exergy efficiency Electrical and Electronic Engineering business Energy (signal processing) Civil and Structural Engineering media_common |
| Zdroj: | Energy. 84:131-138 |
| ISSN: | 0360-5442 |
| Popis: | This paper presents energy and exergy analysis of industrial fluidized bed paddy drying. The maximum design capacity of the dryer was 22 t/h. Existing energy and exergy models developed applying the First and Second law of Thermodynamics are employed to estimate the amounts of energy used, the ratios of energy utilization, magnitude of exergy losses and exergy efficiencies during the drying process. The analysis shows that energy usage and (EUR) energy utilization ratios vary between 38.91 kJ/s to 132.00 kJ/s and 5.24–13.92 %, respectively while exergy efficiency vary from 46.99 to 58.14%. A simple exergy balance reveals that only 31.18–37.01 % exergy are utilized for drying of paddy and the remaining large amount of exergy are wasted. Exergy can be increased through providing sufficient insulation on dryer body and recycling the exhaust air which need to be studied further for investigating the economic feasibility. |
| Databáze: | OpenAIRE |
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