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CONVERSION OF Electrical Core Drying Oven to LPG System | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| A. | Reason for Conversion : | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| The electrical load for heating was 36 KW, Production loss due to longer preheating time, and cost of power consumed, were reasons for the company to look for alternative fuels ( LPG ) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| B. | What we did : | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Since direct firing of LPG does not in any way effect the products, a separate combustion chamber refactory was mounted at the top of the oven. An automatic LPG monoblock burner was kept at the mouth of the chamber. Special ducts were fabricated to guide the hot air from the combustion chamber to the air chamber for the proper distribution of hot air. The auto control system was interlocked with the circulation motor so that burner cannot be switched on unless the fans come into operation. A selector switch was provided to switch over from LPG to electric heating and vice versa, at will. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C. | Results : | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| (i) | Customer is pleased with the reduction in energy costs, uniformity of temperature and increase in production. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| (ii) | Since the electrical heating is not disturbed, the system can be operated either on electricity or LPG firing. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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COMPARISION BETWEEN Electrical Heating and LPG fired system : Core Drying Oven | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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