Principle of Steam Jacketed Kettle:
- Uses steam to provide uniform heating to the contents within the kettle, typically for cooking, mixing, or concentrating solutions.
Construction of Steam Jacketed Kettle:
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- Kettle: Typically made of stainless steel, with a hemispherical bottom to ensure even heat distribution.
- Jacket: A double-walled structure around the kettle where steam is circulated.
- Inlet and Outlet: For steam entry and condensate removal.
- Lid: Often included to minimize heat loss and contain vapor.
- Mixer (optional): For stirring the contents to ensure uniform heating.
Working:
- Steam is introduced into the jacket, heating the inner kettle surface.
- The heat is transferred to the contents inside the kettle, causing them to cook, mix, or concentrate.
- Condensate is removed through the outlet, ensuring continuous steam supply and consistent heating.
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Uses:
- Cooking and preparing food products like soups, sauces, and jams.
- Concentrating solutions in the food and chemical industries.
- Heating and mixing various ingredients in the pharmaceutical industry.
Merits:
- Provides uniform and controlled heating.
- Versatile, can handle a variety of products.
- Easy to operate and clean.
- High thermal efficiency due to steam heating.
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Demerits:
- Limited to batch processes.
- High initial cost for equipment.
- Requires a continuous supply of steam.
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