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Near isothermal steam compressor for jaggery making.

Number: 1518

Author(s) : RANE M. V., JHA A. M., RANE A. M.

Summary

The sugar industry is 2nd largest agro-based industry in India. Sugarcane farmers can realize higher returns if efficient jaggery-making options are available. Almost 36% of sweetener requirement is fulfilled by jaggery in India. Traditional jaggery making is less energy-efficient and often uses undesirable chemicals to improve the colour of jaggery. The entire bagasse needs to be fired. Scraping juice in boiling pans is laborious and stressful. Workers experience severe heat stress because of exposure to smoke and hot environment. Hot spots formed in pans cause inversion of sugar, and browning of jaggery which reduces the price realised. Improvement in the jaggery production process and the quality of jaggery produced can significantly enhance the livelihood of sugarcane producers. As the juice concentration progresses, boiling point elevation increases from 0.56°C at 20 oBrix to 18°C at 90°Brix. This leads to a reduction in heat transfer coefficient which coupled to the heat transfer approach makes it extremely difficult to concentrate juice at jaggery conditions.
The paper presents a review of the conventional jaggery making process and design energy-efficient steam compressor to operate a tabletop Energy Efficient Jaggery Maker (EEJM) based on Vapour Recompression System (VRS). Bagasse firing is eliminated, so the bagasse can be used for other applications like mushroom cultivation, composting, biogas generation, paper making, etc. VRS enables recycling of heat by compressing the vapour generated from the juice concentration process. The condensed water vapour can also be used as pure water for various applications.

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Pages: 10 p.

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Details

  • Original title: Near isothermal steam compressor for jaggery making.
  • Record ID : 30030370
  • Languages: English
  • Subject: Technology
  • Source: 2022 Purdue Conferences. 26th International Compressor Engineering Conference at Purdue.
  • Publication date: 2022/07/15

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