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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.


All posts tagged 'VRF'

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

School Integrates DDC for VRF to Improve Control, Energy Management

HPAC Engineering, Apr. 2016, by Alerton.

"When York County School Division renovated Magruder Elementary School in Williamsburg, Va., in 2015, it chose to install variable refrigerant flow (VRF) for heating and cooling. The wall controllers supplied by the VRF manufacturer, however, lacked dual set points, night setback, and consistent interoperability across competing systems, restricting the school division’s ability to manage energy use. For more robust and consistent control, [the VRF was integrated with a communicating sensor-controller combination]."

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Case in Point: School District Aces Efficiency, Flexibility with VRF

Engineered Systems, May 2, 2016.

"Several schools in the Hazelwood School District north of St. Louis were retrofitted with heat recovery systems. This allowed some schools to reduce installed tonnage by up to 50% and also gave teachers greater control of classroom comfort."

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VRF: Now More Than Ever

Engineered Systems, Feb. 2016, by James J. Siegel.

"It’s not a new technology, but it’s more popular than ever. While VRF is providing engineers and building owners with a financial payback, the benefits go beyond energy efficiency. Take the tour from California offices to Manhattan apartment buildings to schools retrofits in the Midwest, and find out what improvements users might see in the years to come."

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3 Options for HVAC Energy Savings

Building Operating Management, June 2015, by James Piper.

"Even with today’s falling energy prices, facility managers are looking for ways to reduce the energy use of HVAC systems. New technologies and improvements in existing technologies are giving facility managers options. While advances can be seen in practically all HVAC systems, some of the most significant advances are coming in three particular areas: variable refrigerant flow systems, rooftop units, and geothermal systems."

Is VRF Right for Your Next Project?

Consulting-Specifying Engineer, June 2015, by Amara Rozgus.

"Variable refrigerant flow (VRF) systems can be specified into a variety of buildings, especially those that require flexibility. An overview of these systems and some best practices have been provided by Julianne Laue, PE, LLED AP BD+C, BEMP, senior energy engineer at the Center for Energy Performance, Mortenson, Minneapolis."

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VRF with Heat Recovery Ventilation In Pre K-12 Schools

Engineered Systems, May 2015, by Robert G. Thompson.

"As the learning curve for VRF continues, it’s only fitting to see how it can fare in a familiar learning environment. Turns out it can play a key role in the critical lesson of adapting to existing spaces and occupancy needs when crafting the optimum retrofit design for a given client."

Variable Refrigerant Flow [VRF] Is Evolving

Engineered Systems, Feb. 2015, by Marcia Karr.

"While mechanical energy codes may lag relative to the efficiency targets of some other codes, the expansion of VRF into a wider range of equipment makes it easier than ever to exceed expectations. Perhaps more importantly, its incorporation into heat pumps, dehumidifiers, compressors, and more represents more flexibility in delivering an effective retrofit without a total system overhaul."

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Variables for Retrofitting with VRF

Buildings, Jan. 2015, by Chris Olson.

"If you’re considering a major retrofit of an existing HVAC system, take these three steps to do your due diligence for a possible VRF [variable refrigerant flow] solution, says Anne Wagner, energy efficiency engineer at the Pacific Northwest National Laboratory (PNNL)." Also, gives a 15-year lifecycle cost analysis comparison between VAV and VRF retrofit alternatives.

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