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Economizer
The operational efficiency of boiler systems that use natural gas as fuel can be improved by utilising the water content of the flue gas.
Efficiency curve
The curve shows the η (efficiency) of the pump. Efficiency is measured in %.
Efficiency performance standards
Efficiency performance standards regulate motor efficiency and stipulate minimum efficiency requirements.
Effluent
Effluent is the outflow of water from a natural body of water or from a man-made structure.
Electrochlorination
Chlorination is probably the most common method of treating microorganisms in water. Electrochlorination is a safe and simple alternative to chlorine gas and commercial hypochlorite solution.
Emergency run
Hydro MPC booster sets and Control MPC systems in pressure boosting applications incorporates an emergency run function designed for important systems where the operation may not be interrupted.
Enclosure class
Enclosure class states the degree to which an electrical enclosure, such as a motor, is protected against the intrusion of solid objects and water.
Energy costs (Ce)
Energy consumption is most often the largest component in the calculation of the life cycle cost for a pumping system. In commercial buildings, pumps often run more than 2000 hours a year.
Energy label
Most domestic appliances, light bulbs and cars offered for sale or rent in the EU must clearly display an EU Energy Label showing the product’s energy efficiency.
Enthalpy
Enthalpy is a description for an amount of energy, and can be found in reference material for different elements at different temperatures and pressures. Enthalpy is often given as kJ/Kg.