Waste Heat Recovery Systems WHR
Electricity generation through recovery and conversion of wasted heat.
AIncreasing energy costs and global concerns about greenhouse gases and CO2 emissions trigger a trend towards all alternative energy sources. Waste heat recovery also has a great potential no less than the well-known alternative energy sources such as wind, solar, jeothermal and biomass energy. Use for industrial purposes counts for nearly 30% of the total energy consumption. Approximately 20-50% of the industrial energy consumption is estimated to be released to the atmosphere as waste heat. It is economically possible to recover this waste heat and convert it into electricity.
Oil, gas, coal or electricity are used for heating in industrial processes. Furnaces, heaters, boilers, reformers, reactors, lime furnaces etc. processes Release heat into the atmosphere through exhaust gases. Exhaust gases at high temperatures (> 300 ° C) are used for preliminary heating or cogeneration with CHP technologies. However, exhaust gases at lower temperatures can also be recovered and converted into electricity.
WHR Systems technology is based on Rankine cycle which is the fundamental classical thermodynamic cycle of thermal power plants. This thermodynamic cycle is run by an operating fluid. The most suitable technology, Steam Rankine Cycle (SRC) or Organic Rankine Cycle (ORC), is selected upon analysis of many evaluation criteria. It is ideal for the steel industry, glass industry, cement industry and fertilizer manufacturing plants.
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