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Technologies Developed / Released

  • Functionally Graded Aluminium Alloy and Composite Products and Process TechnologyCSIR-NIIST has developed and thus offers a Functionally Graded Materials (FGM) technology for the design and fabrication of lightweight aluminum composite-based components for automotive applications with improved location-specific mechanical and wear properties. The technology has been used to fabricate and demonstrate the automotive components of the brake rotor disc, cylinder liners, and gear housing piston rings in collaboration with user industries. The lightweight brake disc components can be used in automotive for enhanced braking performance, handling and driving performance of the vehicle. The AI-FGM cylinder liners can provide a low coefficient of friction and enhanced wear behavior which in turn improves fuel efficiency and controlled emission.
  • Process Know How for the Development of Ceramic Micro filtration Membranes for Separation ApplicationsLow-cost process know-how available for Multi-channeled ceramic membrane tubes (1 m length and 0.034m diameter) for microfiltration (80-100nm) applications including juice clarification and industrial water recycling. It gives clear water flux in the range of 100-225 LMH and with >99% turbidity removal.

Technologies ready for Transfer / Commercialization

  • Semi-automatic dye-sensitized solar module fabrication unit 

    Salient Technical Features including Competing Features:

    • Capability of custom design as per the requirement for screen printing and other deposition techniques
    • Cost reduction of 50-60% compared to imported equipment retaining the functional features

     

     Environmental Considerations, if any:

    • DSSC technology uses locally available environmentally friendly materials which are recyclable to more than 95%

    Major Raw Materials to be Utilized :SS steel, aluminium

    Techno-Economics:

    With the indigenisation of technology we were able to achieve 60% cost reduction in the entire equipment compared to the existing ones in international market which will help with large scale deployment for various photovoltaic sectors in near future

    Technology Package:

    Custom designed turn-key fabrication facility including the equipment’s listed below
    a) Screen Printing System
    b) Hole Drilling Robot
    c) Five headed integrated system for Silver line dispensing, UV epoxy dispensing, pick and place of electrodes, UV curing and electrolyte filling
    d) Dye coating system
    e) Custom designed furnaces for large area substrates
    f) Glass cutting system

  • Refrigerated Adsorption Dehumidified Drier for Agri products

    An innovative Refrigeration Adsorption Dehumidification Drying (RADD) solution. The idea was to lower the humidity in the drying chamber, thereby facilitating higher mass transfer rates from the spice such as nutmeg, cardamom (elachi) while the drying process. Humid air from the drier room, at about 600 C, is passed through a finned tube heat exchanger, where it is partially cooled and sent to the evaporator of a refrigeration system. Heat exchange between the refrigerant and the partially cooled, humid air results in cooling below the dew point, as a result, the moisture in the air gets condensed as liquid water. The condensed water is removed from the system. While condensing, the latent heat of condensation, as well as the sensible heat is transferred to the refrigerant. In certain cases, dehumidified air is further dehumidified using a silica gel adsorber and then sent to the shell side of the finned tube (FT) heat exchanger, where it exchanges heat with the hot incoming air from the drier room. Meanwhile, the refrigerant coming out of the evaporator is compressed while the heat of compression is removed in the condenser by exchanging heat with the air to be recycled to heat up the air. The resultant dehumidified hot air is pumped back to the drier room for the drying operation……

    Quantified Impact achieved and targeted

    • Shelf life enhancement of agri produces through low-temperature drying
    • Totally a green process and no environmental related issues
    • Since the energy is conserved, the process is cost-effective compared to conventional drying methods
    • Suitable for most of the common agri crops for value addition
    • Scalable up to 2 TPD capacity

    Salient Technical Features

    1. Dehydration Process for the production of superior quality of spices like nutmeg, cardamom, etc. for maximum retention of colour, flavour and free from aflatoxins
    2. Since the air is recycled back into the drier room rather than venting it out to the atmosphere, energy is conserved
    3. The system operates automatically and no manpower is required for the firing of fuel or for hot air generation.
    4. Multipurpose drier through which a variety of heat-sensitive materials like spices, fruits, vegetables, flowers, medicinal plants and leaves could be dried without affecting the quality and these were demonstrated

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