Waste Heat Recovery for Optimal Use of Resources

Waste heat recovery is an efficient, green, and economic solution to help highly demanding industries save valuable energy. Waste energy is captured and delivered to the end users to be used as steam, hot water, or cooling. It can also be transformed into electricity thanks to steam turbines.

Sources of Industrial Waste Heat

The energy produced by manufacturing and industrial processes becomes industrial waste heat when it is released instead of being put to practical use. Losses result from both thermodynamic limitations and inefficient equipment and amount to 20 to 50 percent of input. The main sources of waste heat are exhaust vapor or steam, hot wastewater, exhaust hot air, exhaust or flue gas from thermal post combustion, internal combustion engines and furnaces. Common waste heat sources also include blow-down, exothermic processes, dryers and kilns, fired heaters, steam boilers, and thermal oxidizers. The result is low energy efficiency that increases GHG emissions and pollution, operating costs, and fossil fuel consumption.

How industrial Waste Heat can be used

The use of waste heat depends on its quality and quantity. Thus, according to the temperature (the quality) and the mass flow rate (the quantity) of the industrial waste heat there are multiple applications which can be used for space heating, power generation, preheating of water, boiler feedwater, and combustion air. It can also be used to transfer gaseous and liquid streams and to generate steam that can be utilized in power generation.

Common waste heat users also include ORC generators, steam ejectors, and combustion air pre-heat.

Benefits for industrial operations

The utilization of industrial waste heat has multiple benefits such as reduced energy consumption, improved heating efficiency, reduced operating costs, and reduced equipment size. Additional benefits include larger energy output at a lower cost, reduced process costs, and reduced utility consumption.

Industries That Use Waste Heat Recovery Systems

Systems that capture and transfer heat are used across industries such as fabricated metals, non-metallic minerals, and primary metals. Recovery systems are also employed in the bricks, glass, paper, chemical, and refining industries. Growing electricity prices in the postindustrial countries and growing demand in the developing world are likely to result in high demand for waste heat recovery systems.

What Termogamma offers

SAvER is an advanced system that helps minimize environmental pollution and increase energy efficiency. Featuring a customized engineering design, SAvER is a waste heat recovery solution that supplies useful energy to large buildings, manufacturing plants, and other operations. Energy is captured at hot points such as waste hot water sources or chimneys. Then it is transferred and supplied in the form of hot air, hot water, or steam. Waste heat can also be used for electricity generation (thanks to steam turbines) or converted into cooling energy. The system offers multiple benefits such as lower operating costs, reduced environmental impact, and optimal use of resources.

Industrial waste heat recovery systems offer many benefits such as lower costs of capital equipment, reduced energy costs, higher product quality, and lower emission treatment costs. Businesses that use recovery systems also benefit from reduction in natural gas consumption and fuel savings and reduced electricity consumption. Large industrial operations are also entitled to receive carbon credits for further savings.