![]() If you decide to add a WHRU to your system for environmental concerns, to save money or both, Heatec can help you evaluate your process and decide which type of system is best. Recovered heat can also be used to generate power, for comfort air heating, put back into the process, and more. Or, an economizer captures exhaust heat to heat the liquid or gas process medium before it circulates through the main heating unit which again, helps reduce energy consumption. Preheating air will help a gas fired burner burn more efficiently and use less fuel gas. For example, you could use a WHRU for air preheating. But, almost any industrial process that has waste heat can use a heat recovery system. ![]() The industries that consume the most energy in the United States are bulk chemical, refineries, mining, iron and steel, food processing, pulp and paper, agriculture, and construction. You can have multiple systems running together. Types of heat recovery systems consists of economizers, recuperators (usually heat exchangers), regenerators, heat pumps, heat recovery steam generators, thermal oxidizers and more. ![]() Knowing the temperature, quality, quantity and use of the waste heat will determine the type of recovery system you want to use. Heatec WHRUs on an offshore platform recover waste heat from gas-powered turbines. Low-temperature waste heat usually comes from parts, products, and radiation from equipment. Medium and high-temperature waste heat typically comes from direct combustion processes and from the exhaust of combustion equipment. Waste heat at medium and high temperatures is the easiest to recover but it is possible to recover waste heat with lower temperatures as well. Waste heat is classified as high temperature (above 752˚F, 400˚C), Medium temperature (between 212-752˚F, 100-400˚C), and low temperature (below 212˚F, 100˚C). Which method to use depends on the quality and temperature of waste heat. There are a number of different methods and equipment for heat recovery. Investing in a recovery system is one of the most practical and logical investments a company could make. For the same reasons heat recovery is good for the environment are the reasons that heat recovery is good for the bottom line: less waste and less consumption equal increased efficiency. It’s true that capital costs will be more for the additional equipment but those costs will be recouped in as little as two years in many cases. Reducing your environmental impact also helps save you money, which is the second reason for recovering heat. It includes a gen-set that provides electrical power for the heater and related equipment. The rig remains fully assembled for travel and does not require reassembly from one site to another. Manufacturers and industries have and will continue to play a major role in reducing waste and consumption. The heater operates on natural gas, propane, diesel fuel or a combination, depending on the model. Climate change will continue to be a hot topic of debate around the world. By reusing the heat that would otherwise be lost, you help reduce the amount of emissions released into the atmosphere and reduce your consumption of limited resources. You could look at heat recovery as another form of recycling. Most who do this will do it out of a sense of obligation to reduce their carbon footprint. Many of us separate glass bottles, aluminum cans, and cardboard boxes from the regular trash so that they can be recycled. The first is environmental responsibility.
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