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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: Industrial

Industrial


Tapping In to the Cost-Saving Power of VFDs

Business Energy, Sept/Oct. 2016, by Dan Rafter.
http://foresternetwork.com/business-energy-magazine/be-energy/be-energy-management/apping-in-to-the-cost-saving-power-of-vfds/

"What kind of difference can a variable frequency drive—better known as a VFD—make for a municipality? A significant one. Just look at the town of Mooresville in North Carolina, where a VFD developed by Eaton has not only boosted the energy efficiency of the municipal water treatment plant, but has also extended the life expectancy of a pair of new 800-horsepower pumps at the facility."

Processing and Packaging: Thermal Processing Equipment Is Saving Energy, Product and Money

Food Engineering, Sept. 2016, by Wayne Labs.
http://www.foodengineeringmag.com/articles/96121-thermal-processing-equipment-is-saving-energy-product-and-money

"The commercially canned products available in the past largely contained overcooked food that was mushy, too salty and tasted anything but fresh—if it had any flavor at all. The only positive characteristic was the safety, with the impossibility of any bacteria surviving the process unless the can was faulty. Thankfully, though the basic procedures are much the same, since then a lot has been discovered about thermal processing—we’ve turned down the heat and maybe even saved a little energy in the process."

German [Wastewater] Plant Upgrades Drop Specific Energy Use by More Than 50 Percent

Pumps & Systems, Sept. 2016, by Erkki Lantto & Stefan Wilken.
http://www.pumpsandsystems.com/pumps/september-2016-german-plant-upgrades-drop-specific-energy-use-more-50-percent

"In the city of Sögel, Germany, one municipal wastewater plant employs turbocompressors to reduce its operating costs and cope with load fluctuations. The setup’s success comes from an advanced design with proven magnetic bearing technology and a high-speed motor. The plant treats domestic wastewater and industrial wastewater from nearby food industry factories."

Pumping Prescriptions: What Happens to Power & Efficiency When a Pump Wears Out?

Pumps & Systems, Sept. 2016, by Lev Nelik.
http://www.pumpsandsystems.com/pumps/september-2016-what-happens-power-efficiency-when-pump-wears-out

"When a pump experiences internal wear, its performance drops. Flow is reduced and efficiency plummets. But what happens to power? Does it drop, stay the same or increase? The answer to this question depends on how a pump wears internally. In extreme cases, when the impeller is completely worn, there will be no flow and hardly any power. But in many cases, tight clearance parts, such as wear rings and bushings, are the first to wear."

Community-Scale Solar Can Power Corporations, Too

Rocky Mountain Institute, Aug. 31, 2016, by Thomas Koch Blank and Titiaan Palazzi.
http://blog.rmi.org/blog_2016_08_31_community_scale_solar_can_power_corporations_too

"A new option for corporations interested in fueling their operations with clean energy is arising: community-scale solar. An insight brief from RMI’s Shine initiative, which aspires to aggressively accelerate the deployment of community-scale solar systems in the U.S., details the opportunities that community-scale solar offers. Corporations are entering the renewables market in force, and they will find much to like in the community-scale solar market segment."

New-Old Refrigerant: Carbon Dioxide for Industrial Refrigeration

ASHRAE Journal, Aug. 2016, by Donald L. Fenton.
http://tinyurl.com/h4r23pt

"CO2 is one of the five natural refrigerants and over the past 20 years has gained popularity, particularly with low-temperature refrigeration for industrial systems."

Chiller Plant Optimization Yields $386,000 Utility Rebate

Chiller & Cooling Best Practices, Aug. 2016, by Mike Flaherty.
http://www.coolingbestpractices.com/system-assessments/chillers/chiller-plant-optimization-yields-386000-utility-rebate

"As a result of the project, this manufacturing site is saving approximately 4,450,000 kWh on 19,000,000 ton-hours of annual cooling production. This tremendous efficiency gain equates to $425,000 in energy annual savings and earned the site a $386,000 PECO utility rebate. The site’s chillers are now sequenced based on efficiency.  All pumps are variable speed and they are sequenced to meet the flow demand at the lowest total pumping energy. Consequently, the system pressure has been reduced from over 100 PSI to approximately 78 PSI."

Package Boilers Find New Friends

Plant Engineering, Jul/Aug 2016.
http://www.plantengineering.com/single-article/package-boilers-find-new-friends/6dff20bf020db5486b2b87a3b6963077.html

"For original equipment or replacements, package boilers offer efficiency, redundancy, flexibility: Advanced controls manage steam ramp-up and ramp-down for better combustion efficiency and heat transfer; improvements create efficiencies as high as 85%."

CHP a ‘Powerful Combination’ For Plants

Plant Engineering, Jul/Aug 2016, by Roy Palk.
http://www.plantengineering.com/industry-news/electrical-news/single-article/chp-a-powerful-combination-for-plants/446268f173d8772b8d742dfdd394288a.html

"The pressure is on for industrial plants to become radically more energy efficient. The ongoing renaissance in combined heat and power (CHP), also known as cogeneration, is a major reason why."

Industrial Hydronic System Manual-Balancing Methods

Chiller & Cooling Best Practices, Aug. 2016, by Brandon Aitken.
http://www.coolingbestpractices.com/system-assessments/chillers/industrial-hydronic-system-manual-balancing-methods

"Hydronic balancing in industrial heating and cooling systems is an often overlooked final step in startup and commissioning of new and modified hydronic systems.  Insisting on a complete system balance upon startup of a new or modified system is an inexpensive insurance policy for any design engineer or installation contractor to protect their reputation against a system that is not performing to design conditions.  There are several methods of hydronic system balancing utilized in commercial and hospitality buildings, however, they are rarely found in the manufacturing and industrial environments."

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