We help you generate power from the wasted heat based on ORC turbine generators.
Cement manufacturing is an energy intensive process. By improving the energy efficiency in terms of thermal and electric energy, it is possible to improve the bottom line by cost optimization. In a cement kiln, 22.5% energy input is lost to the atmosphere through flue gases. By recovering the thermal energy available in the pre-heater flue gas as well as in clinker-cooler exhaust, it is possible to generate enough electrical energy to meet 30% of power requirement.
ARESCO in collaboration with FirstESCO offers innovative heat recovery and energy conversion by using Organic Rankine Cycle(ORC) power systems.
Steel industry is energy intensive, requiring large amount of electrical energy as well as heat energy through use of fossil fuels. In most of the furnaces used in the steel making process, some amount of heat energy will be lost to the atmosphere through flue gases. Typically, 20-25% of the input energy is lost through exhaust flue gas. It is common in many of the steel manufacturing facilities to recover the heat that is lost to the atmosphere and use it for process heating or power generation.
However in many plants, the heat energy lost through flue gases from electric arc furnaces (EAF) is not recovered. Typically, the exhaust as from an electric arc furnace will be at 900°C and the thermal energy lost to the atmosphere would be 8000 KWth for a 50 ton electric arc furnace. By installing our ORC power system, it is possible to recover up to 2 MW of electrical energy using this heat with a 50% duty cycle.
Glass kilns utilize heavy fuel oil (HFO) or natural gas. Typically a glass furnace exhaust flue gas will be at a temperature of 450-500°C. As per available statistics, the energy lost through exhaust flue gas will be in the range of 25-30% of input energy. For a seven hundred ton capacity glass furnace, the energy lost to the atmosphere through flue gas will be typically 8000 KWth.
ARESCO in collaboration with FirstESCO supplies technology for recovering this heat energy lost to the atmosphere and converting into useful power using ORC power systems. Typically for a 700 ton glass furnace, it is possible to generate up to 2.5 MW using ORC power system.
Sponge iron kilns are energy intensive. 30% of the energy input to the kiln is lost to the atmosphere through flue gas. Many sponge iron plants with kiln capacity higher than 200 tons, the heat in the exhaust flue gas is already utilized to generate steam and generate power. However, sponge iron plants with a capacity less than 200 tons normally let out the flue gas into the atmosphere after cooling the same in forced draft cooler (FDC). Hence there is a great opportunity for these plants to install ORC power systems for conversion of waste-heat to power.
As per conservative estimates, it is possible to generate up to 1.5 MW electrical power from the waste flue gas emitting from a 200 ton sponge iron kiln.