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Energy Newsbriefs Blog

The WSU Energy Program Library prepares this current awareness blog with funding from the U.S. Department of Energy State Energy Program. These articles highlight energy-related news, articles, and reports about energy efficiency, energy conservation, and renewable sources of energy for energy professionals and interested members of the public.

All posts tagged 'Chilled Water System'

Check out all of the posts tagged with 'Chilled Water System' below. If you still can't find what you are looking for, try using the search box.

Optimizing Centrifugal Chiller Systems

Engineered Systems, Apr. 2017, by Chris Miller.
http://www.esmagazine.com/articles/98238-optimizing-centrifugal-chiller-systems

"Retrieving every last bit of performance from the system while stopping short of the surge line is no small feat. Dig into sizing, tower selection, chilled water loads and stability, and condenser water management to leave no efficiency stone unturned."

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Cooling Towers Offer Data Centers Water and Energy Savings

Chiller & Cooling Best Practices, Mar. 2017, by Douglas Bougher and Kent Martens.
http://www.coolingbestpractices.com/technology/cooling-towers/cooling-towers-offer-data-centers-water-and-energy-savings

"The number of data centers in the United States continues to grow in response to the enormous amount of digital information stored and streamed. The massive computer power within these data centers generates heat, making efficient cooling a key building system requirement. Evaporative cooling towers are an integral part of many data center cooling systems. Recently some have questioned the use of cooling towers, citing water scarcity to bolster their arguments. But a thorough examination of water use for local onsite cooling towers compared to water use to generate power at regional fossil fuel power plants reveals surprising results."

Chiller Plant Optimization: Improving On Variable Primary Flow Chilled Water System Operation

Engineered Systems, Nov. 2016, by Mark Bandini, Ernie Brandusa, and Carlos Petty.
http://www.esmagazine.com/articles/98002-chiller-plant-optimization-improving-on-variable-primary-flow-chilled-water-system-operation

"The larger or more complex a cooling plant becomes, the more challenges to its efficiency it will face. When applied wisely, modern controls and equipment can rise to meet those challenges. Read up on active balancing, pump dynamic differential setpoint control, and more responsive tactics for when the worst thing you can do is just go with the flow."

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Chiller Plant Optimization: The Role Of Controls

Engineered Systems, Oct. 2016, by Carlos Petty.
http://www.esmagazine.com/articles/97961-chiller-plant-optimization-the-role-of-controls

"Properly selected automated controls to minimize chiller plant energy, power consumption, and the cost of operations are essential for overarching chiller plant performance. Effective plant managers are driven to operate their plants at the lowest life cycle costs possible. This begins with the initial first cost of construction and recurring plant lifecycle operating costs, while still accounting for all the complexities and interaction among major plant equipment components."

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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."

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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."

Evaluating Chilled Water Cooling System Components

Chiller & Cooling Best Practices, May 2016, by Joe Leichner.
http://www.coolingbestpractices.com/technology/chillers/chillers-and-cooling-systems-weec-2015/evaluating-chilled-water-cooling-system-c

"While the chiller is the heart of a chilled water system, its support system of components and controls are equally critical to maintain and manage to ensure the highest system efficiency levels are attained. Emphasis is often placed on the chiller since it is the most visible and typically the highest energy element of a chilled water system. Yet, if you look beyond the flanges, there’s an opportunity to improve delivery of chilled water to the airside or process loads and maximize system efficiency."

Full "Green Steam" Ahead in Boston: CHP Project Advances Region's Environmental Goals

District Energy, 2nd Quarter 2015, by William J. DiCroce.
http://www.districtenergy-digital.org/districtenergy/2015Q2?folio=12#pg14

"One of the oldest cities in the United States, Boston is supported by an innovative district energy system that integrates thermal energy recycled from the electric generation process for heating and cooling. Since acquiring the district system in 2005, Veolia North America has made significant investments to improve network efficiency and reduce environmental impacts, culminating in the completion of its $112 million 'green steam' pipeline project in 2014."

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The Energy Newsbriefs Blog is a continuation of the weekly Energy Newsbriefs. Please bookmark this site and return frequently. Although we will not be accepting comments from within the Blog, we would be happy to hear from you by email at library@energy.wsu.edu