Recycling cooling water between operations and modifying washing processes can yield 15% water savings.
Fitting flow restrictors and reducing valves can produce a 5% savings on water costs.
Changing dyestuffs and chemicals can save your company 8% in costs.
Reducing rinse times saved a company 50 m3 of water per week.
Efficient sprinkler nozzles on scouring machines and water recirculation saved a company 210 m3 of water per week.
Modified dye recipes saved one company 11% on water use.
Countercurrent washing, recycling rinse water, re-using cooling water and using wash-off water for dyeing saved a company 660 m3 of water per week.
In the knitted cloth sector, specific water consumption ranges from 70 m3/tonne to 206 m3/tonne of cloth produced.
A company saved EUR 280000 a year on water by installing continuous wash-off.
A company saved 8% on costs by changing the type of chemicals and dyestuffs.
A 5% reduction in excess air increases boiler efficiency by 1%.
A 22 oC reduction in flue gas temperature increases boiler efficiency by 1%.
A 60 oC raise in feed water temperature of a boiler (by economiser/condensate recovery) saves 1% on fuel consumption.
A 3 mm diameter hole in a pipe line carrying 7 kg/cm2 steam means 32650 liters of fuel oil wasted per year
A bare steam pipe of 150 mm diameter and 100 m length, carrying saturated steam at 8 kg/cm2, means 25000 liters of oil wasted per year
Heat losses on the surface of 900 oC hot liquid/condensate can be reduced by 70% by floating a layer of 45 mm diameter polypropylene (plastic) balls.
An 0.25 mm thick air film offers the same resistance to heat transfer as a 330 mm thick copper wall
A 3 mm thick soot deposition on a heat transfer surface of a boiler can cause an increase in fuel consumption to the tune of 2.5%.
A 1mm thick scale (deposit) on the water side of a boiler can increase fuel consumption by 5% to 8%.
In a compressed air system, a 50 oC reduction in intake air temperature reduces compressor power consumption by 1%.
In a compressed air system, a 1 mm compressed air leak at 7 Kg/cm2 pressure causes a power loss of 0.5 kW.
In a compressed air system, a reduction of 1 kg/cm2 in air pressure can reduce input power by 9%.
In a compressed air system, a 1 kg/cm2 pressure drop in the system can reduce the leakage from a 1 mm hole 10%.
For every 3.5 oC increase in condensing temperature, the refrigeration capacity reduces by 6%.
In a refrigeration system, lowering the condensing temperature by 5.5 oC results in a 20% - 25% decrease in compressor power consumption.
In a refrigeration system, a reduction of 0.55 oC in cooling water temperature at the condensor inlet reduces compressor power consumption by 3%.
In a refrigeration system, a 1 mm scale build-up on the condenser tubes can increase energy consumption by 40%.
In a refrigeration system, a 5.5 oC increase in evaporator temperature reduces compressor power consumption by 20 - 25%.
The high efficiency motors are 4% - 5% more efficient than standard motors.
For every 100 oC increase in motor operating temperature over the recommended peak, the motor life is estimated to be halved.
If rewinding of an electric motor is not done properly, its efficiency can be reduced by 5% - 8%.
A balanced voltage can reduce motor input power by 3% - 5%.
A variable speed drive option in electric motors can result in input energy consumption reduction by 5% - 15%.
Soft starters/energy savers on electric motors help to reduce power consumption to the tune of 3% - 7%.
Replacement of incandescent bulbs by CFL's offers 75% - 80% energy savings.
Energy efficient tube lights with electronic ballast instead of conventional tube lights helps reduce power consumption by 40% - 50%.
A 10% increase in supply voltage will reduce bulb life by a third.
A 10% increase in supply voltage will increase lighting power consumption by 10%.
An increase in room temperature of 10 oC can increase heating fuel consumption by as much as 10%.
Installing automatic lighting controls (timers, daylight or occupancy sensors) saves energy to the tune of 10% - 25%.
Switching off a 1 ton window A/C for 1 hour daily during lunch hour means avoided wastage of 445 kWh of power consumption.