Energy Efficiency Optimisation in Coating Dryers
topic
Coating dryer energy efficiency improvements target the dominant energy consumption sources through exhaust air heat recovery by plate or rotary heat exchangers reducing fresh air heating energy by 30 to 50 percent, variable speed control of recirculation fans reducing fan power at reduced production speeds, oven insulation improvement reducing heat loss to surroundings, and combustion control optimisation maintaining stoichiometric gas-to-air ratio for minimum excess air heating waste.
Role
Reduces the dominant energy cost in coating production through systematic targeting of heat losses and inefficiencies in coating dryer systems that together represent 40 to 60 percent of total coating line energy consumption, with heat recovery installation providing the highest return on investment energy efficiency improvement available in coating operations whose economic benefit is enhanced by the increasing energy cost and carbon emission reduction requirements of sustainability commitments.