Supported by EIE/04/246/S07.38678

Benchmarking and Energy management Schemes in SMEs

Measure List Industrial laundries

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Process-related Improvement Opportunities

Energy Efficiency Measure	Description
The power of Ozone for industrial laundries	Use of Ozone to reduce water consumption
Humidity sensors	Reduction of dryer gas use
Boiler efficiency measures	Reduction of gas
Batch washers	Monitoring of batches to avoid energy and water waste.
Water monitoring	Monitor the quantity of water used per kilos of goods produced
Re-use of water	An improvement method that contributes to improved efficiencies and cost savings.
Recovery of latent heat from drying process	Recovery and reuse of the latent heat at the drying stage
Hot Oil Systems	More efficient in maintaining and operating systems
Optimise warm rinsing	Increase the temperature of the final rinse/reduce drying time
Optimize dryer recirculation	Totally switch of the recirculation by adjusting a valve
Properly adjust wringer extractor	By readjusting the extractor equipment, reduce the extraction debit from the wringer rollers
Measure drying parameters	Compare drying parameters to moisture
Optimize dryer loads	Optimally loading the dryer can conserve a significant amount of energy
Optimize wringer loads	Optimising loads meaning that controlling the energy consumption of the wringer will conserve energy
Warm soaking	A measure to reduce the washing period.
Optimize balance between preliminary drying and wringing	When setting the preliminary drying period, an optimal energetic balance must be sought between the preliminary drying period and the efficiency of the wringer drying process
Replace steam dryers with gas dryers	Gas dryers are more efficient that the ones with steam since they do not suffer fro losses
Install wringer hoods	Minimizing the escaping warm air
Reuse residual heat for dryers	Directly heat the dryer
Shorten drying periods	Relevant to measure 20
Install end point detector for full drying	Use proper equipment to detect the end point and make the drying period as short as possible
Lift wringer rollers during breaks	Energy conservation technique
Do not mix low-value and high-value energy flows	Mixing of these two procedures costs in energy
Use a heat pump in drying process	A heat pump is highly suitable for recycling the heat and the drying air needed in a drying process
Use targeted extraction	Targeted extraction can be used, for example, by using local extractor hoods for process baths
Establish standards for loading washers	A common base of energy methods has to be prepared in order to for the personnel involved in laundries to be in line
Soften water	Softening reduces water, chemical and energy use.
Extract as much water before dryer	Energy efficiency method
Washing Machines, Loads, and Temperature Settings	Usage of the most appropriate and adequate equipment

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