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Questions and Answers
Which type of dryer is the most widely used in food drying?
Which type of dryer is the most widely used in food drying?
- Cabinet batch type dryer
- Solar air dryer
- Hot air dryer (correct)
- Steam heat exchanger dryer
What are the sources of heat for hot air dryers?
What are the sources of heat for hot air dryers?
- Natural gas burners, solar energy, electrical coils
- Solar energy, electrical coils, steam heat exchangers
- Electrical coils, steam heat exchangers, natural gas burners (correct)
- Steam heat exchangers, natural gas burners, solar energy
What is the typical operating temperature range for hot air dryers?
What is the typical operating temperature range for hot air dryers?
- 100C to 120C
- 20C to 40C
- 40C to 80C (correct)
- 80C to 100C
During which drying period does the product temperature begin to increase?
During which drying period does the product temperature begin to increase?
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What is the purpose of the length of tunnel between the heaters and food in a hot air dryer?
What is the purpose of the length of tunnel between the heaters and food in a hot air dryer?
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