It is no coincidence that the energy-cost-reducing technology used to recover and reuse heated process air in fluid-bed drying systems was developed during the energy crisis of the 1970s. As the cost of energy sharply increased, so did the cost to run and operate a fluid-bed dryer. Capturing and reusing as much heat as possible — to take full advantage of every unit of energy — became a logical goal to offset rising costs.
Saving energy also advances worthy environmental goals. It allows executives to position their companies as sustainable organizations that will be around far into the future. If the environmental impact is the only criteria at your company, then the decision to recycle is easy. If there may be a potential cost savings to realize, then consider the following key points to determine if recycling the exhaust air makes sense for your process.