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  • The Rankine cycle as a renewable energy alternative

    Discussion in 'Industrial design' started by rafaelherrera, Jan 21, 2019.

    1. rafaelherrera

      rafaelherrera Member EngineeringClicks Expert

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      I was pleasantly surprised how the Rankine cycle is being used in the production of different renewable energies all over the world.

      To cite some examples:

      In Turkey, they are developing a small-scale geothermal power plant project to generate electricity from low-temperature geothermal sources.

      The project is called "Design and Manufacture of Plants with Organic Rankine Cycle for the Production of Electricity from Geothermal Waters of Low Enthalpy".

      The project plan is to build a small-scale geothermal power plant with a capacity of 500 kWe based on the organic Rankine cycle to provide electricity generation from low-temperature geothermal fields (less than 100 degrees Celsius).

      The first application for a small scale ORC, where the engineering designs are completed and all the equipment, including the turbine, will be produced locally, will use a well with a temperature of 95 ° Celsius.

      Another example is in the wine sector, which, as in many other sectors, the application of renewable energy plays a key role in combating climate change and improving the competitiveness of companies.

      Energy consumption is present throughout the production chain, from the vineyards during the collection and transport process, through the warehouses, in the production process and the final part of packaging and distribution to consumers.

      In the viniculture sector, waste heat recovery systems are being developed using organic fluids in small power Rankine cycles. Previously this technology was available only for high power, around more than 300 kW up to a few MW. But with the new systems of small capacity is possible for example the recovery of heat from the exhaust gases in biomass boilers for the additional production of electrical energy. The range of electrical power that can be generated with these small installations can range from 5 to 120 kW allowing the conversion of heat production facilities with biomass in cogeneration power and heat plants.

      In Denmark, they are developing hybrid biomass and thermosolar system in a network that produces heat and electricity.

      The system presents the first cogeneration plant in Denmark, but also in the whole world, which integrates concentrated thermosolar energy and a biomass boiler, while also using the organic Rankine cycle to convert energy into district heating and electricity. The network, which has demanded an investment of 45 million euros, is located in the city of Brønderslev.
       
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