Tag: generator

In electricity generation, a generator is a device that converts mechanical energy to electrical energy for use in an external circuit. The source of mechanical energy may vary widely from a hand crank to an internal combustion engine. Generators provide nearly all of the power for electric power grids.

Energy Efficiency for Wastewater Treatment Plants

Energy Efficiency for Wastewater Treatment Plants

Much has changed in recent years in the water and wastewater industries: evolving environmental regulations, increasing oper­ating costs, technology advancements, and improved opportunities for load management, according to the Electric Power Research Institute (EPRI).

Job Site Support Equipment

Job Site Support Equipment

Grading and excavating sites typically bring to mind big iron, but it also takes a lot of support equipment to complete a job—and even to begin one. The typical job site is home to job trailers for the foreman’s office long before utilities arrive. Trailers are filled with power-hungry systems.

Exemplary Efficiencies

Exemplary Efficiencies

Much has changed in recent years in the water and wastewater industries: evolving environmental regulations, increasing oper­ating costs, technology advancements, and improved opportunities for load management, according to the Electric Power Research Institute (EPRI).

Under Pressure

Under Pressure

Finding leaks and repairing them is a constant struggle for water utilities. Blame the aging pipes with which most utilities are working.

Tracking the Storm

Tracking the Storm

Think of a hurricane, and what usually comes to mind first are high-speed winds. However, 90% of direct hurricane-related deaths are caused by water-related injuries, including storm surge, rainfall flooding, high surf, and deaths just offshore, according to researchers at the National Hurricane Center.

Stormwater Goes to School

Not too long ago, there were only two colleges in the United States where one could learn about stormwater management, notes Brant Keller, public works director for Griffin, GA.

Rare Radial Steam Turbine Rejuvenated

Rare Radial Steam Turbine Rejuvenated

Precision reverse engineering resolves vibration issues

Overhauling a steam turbine as part of a planned maintenance schedule is a regular task for many large-scale industrial enterprises that depend on these units to generate electrical power. However, for one pulp manufacturing plant in Eastern Canada, the refurbishment of its 25 MW Stal

Deemed As Necessary

Deemed As Necessary

Grading and excavating sites typically bring to mind big iron, but it also takes a lot of support equipment to complete a job—and even to begin one. The typical job site is home to job trailers for the foreman’s office long before utilities arrive. Trailers are filled with power-hungry systems.

The Physics of CHP Cogeneration and Heat Engine Efficiency

The Physics of CHP Cogeneration and Heat Engine Efficiency

How does CHP work? To understand CHP you have to begin with the Carnot cycle, and how it describes the function and efficacy of any heat engine. The thermodynamic Carnot cycle (proposed by Nicolas Carnot in 1824) is a four-stage process that describes the reciprocal operations of a heat engine

Electricity is in the Air

Electricity is in the Air

The electric revolution in heavy equipment continues to move forward. The latest offering comes from Caterpillar and its new electric drive 988K XE wheel loader. It uses what Cat calls its switched reluctance technology. The wheel loader still has its C18 engine, mechanical drop box, driveline, and axles. In the

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