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Energy Newsbriefs Blog

This current awareness service is prepared by the WSU Energy Program Library with funding from the U.S. Department of Energy State Energy Program. This information is provided for energy professionals and interested members of the public to highlight recent energy-related news, articles, and reports that discuss energy efficiency, energy conservation, and renewable sources of energy in engineering and policy circles.


Category: Operations & Maintenance

Operations & Maintenance

Keep Hydraulic Fluids Contaminant Free

Maintenance Technology, Aug. 2015, by Ken Bannister.

"Despite their complexity, hydraulic systems are very forgiving beasts—almost too forgiving for their own good. They’ll tend to perform inefficiently for a long time before catastrophic failure occurs. Unfortunately, this forgiving nature can foster a widespread, apathetic approach toward failure prevention, efficiency optimization, and service life-cycle management. Fluid is the most important part of any hydraulic system and when systems fail, the cause is most often related to fluid/fluid contamination. Those failures usually take other critical equipment and processes with them."

Cool Advice On Hot Motors

Maintenance Technology, Aug. 2015., by Jim Bryan.

"The effects of excessive temperature on motor performance are notorious. After moisture, they are the greatest contributor to bearing and winding failures. Understanding the source of increased temperature is key to correcting the problem and improving the reliability of your facility’s motor fleet."

Winning the Cooling Tower Trifecta: Controlling Corrosion, Scale, and Microbiological Fouling

Power Magazine, Sep. 2015, by David Daniels.

"In cooling water chemistry for power plants, it is not enough to control one or two of the major chemistry issues. Successful treatment requires simultaneous control of corrosion, scale, and microbiological fouling. These three are so strongly tied to each other that if one is allowed to go out of control, the other two soon will be."

Equipment Failure Survey Quantifies Outage Impacts [Hydropower]

Hydro Review, July 2015, by Leanne Greisen, and others.

Peer reviewed article:
"The cost and schedule impacts of delaying investment in hydropower equipment to the point of failure can be severe. In fact, according to the results of a recent survey, costs can be 10 times higher than making the investment in advance of the failure."

10 Cooling Tower Maintenance Tips

Air Conditioning, Heating, Refrigeration News, June 22, 2015, by Baltimore Aircoil Co.

"A well-maintained unit will continue to function at the original optimum efficiency. Over time, a neglected cooling tower’s leaving water temperature will increase, raising energy costs by up to 6 percent for every 2°F increase. However, a well-maintained cooling tower will continue to function at the original optimum efficiency, keeping energy costs low. These simple preventive cooling tower maintenance tips can help users save up to 15 percent on electricity costs. Routine maintenance also helps to conserve water and extend the operating life of cooling equipment."

Plant Engineering: Lubrication Guides

Plant Engineering, June 2015.

"Friction is the enemy of efficiency. A sound lubrication strategy is essential to keep all the gears in your operation running at their best. The emergence of synthetic lubricants has helped improve the performance of machinery and has become an important part of any maintenance manager’s arsenal in the fight against friction.

The Guide will provide you with a comprehensive look at the available lubricants. This year's guide also considers the important issues of environmental impact of oils, greases and fluids, the need for a strong culture of lubrication excellence, and an in-depth look at some of the new standards in bearings and seals." 

8 Drains on Building Efficiency, 5 Ways to Fix Them

Building Operating Management, May 2015, by Ronald Kovach.

An article in four parts:
Part 1: 2 Ways Building Energy Performance Deteriorates
Part 2: Role of Staff, Training, Building Data in Loss of Energy Efficiency
Part 3: Maintenance Plan, ‘Walk-Around’ Audits Can Help Restore Energy Efficiency
Part 4: Comparative Data, Coil Cleaning Can Help Restore Energy Efficiency

Safety and Energy-Saving Resulting from Early Detection and Prevention of Leakage of Low-Flammable Refrigerants

IEA Heat Pump Centre Newsletter, #33 2015, by Masahide Sumi. [Open PDF then scroll or jump to page 22.

"Leakage of refrigerants represents a high cost in terms of the energy required in refrigeration and air conditioning devices. As it is expected that low-flammable refrigerants will be used in many devices in the future, this issue can be very important for the global environment, energy saving and safety. The following article describes detection systems which can easily detect and identify leakage at an early stage, and a method which can easily prevent leakage from plumbing and joints of air conditioning equipment."

Maintaining Modular Conveyor Systems in Flexible Manufacturing Systems

Maintenance Technology, Mar. 2015, by Paul Zielbauer.

"Pallet-based modular conveyors used in flexible manufacturing provide a wealth of benefits in just about any assembly operation. Suitable for applications ranging from small electronic parts assembly to large appliance manufacturing, automotive drivetrain and even medical-device assembly, these conveyors help improve production, achieve higher product quality and enhance manufacturing flexibility. Regularly scheduled maintenance and attention to detail are crucial for ensuring the longevity and efficiency of these systems."

Four Tips on LEED O+M Can Ease Way to Certification

Building Operating Management, Dec. 2014, by Pete Choquette.

"Certification under programs like the LEED Operations and Maintenance (LEED O+M) rating system has become important as designers, owners and facility managers have begun focusing more closely on the energy and environmental impacts of their buildings. Four tips, including a look at the LEED O+M credits structure, can ease the way to LEED certification."
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