Category: Data Centers
Chiller & Cooling Best Practices, Mar. 2017, by Douglas Bougher and Kent Martens.
"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
Engineered Systems, Jan. 2017, by Kevin Dickens.
"Trends don’t always follow the expected path (or timeline), but the basics remain the basics and increased cabinet density remains inevitable. Let’s revisit the progress of liquid in data center strategy and the tenets of a future-proof(ish) hybrid design for today
Building Operating Management, Jan. 2017, by David Lewellen.
"...a three-part article on how to make critical facilities more energy efficient."
ASHRAE Journal, Oct. 2016, by Ron Jarnagin.
"Standard 90.4 is a code-intended energy standard designed to work in concert with Standard 90.1. In developing Standard 90.4, the basic structure matched that of Standard 90.1, which enables Standard 90.4 to simply refer to Standard 90.1 for requirements such as envelope, lighting and service water heating, which are within the scope of Standard 90.4 but are already well-covered by Standard 90.1. Standard 90.4 also references Standard 90.1 for mechanical equipment efficiencies, some of which are linked to U.S. Department of Energy legislation. So, if you are building or expanding a data center, you need to use both standards
Consulting-Specifying Engineer, Sept. 21, 2016, by Saahil Tumber.
"Liquid cooling refers to a scenario where liquid (or coolant) must be supplied to the ITE. An IT cabinet is considered to be liquid-cooled if liquid, such as water, dielectric fluid, mineral oil, or refrigerant, is circulated to and from the cabinet or cabinet-mounted equipment for cooling. Several configurations are possible, depending on the boundary being considered (i.e., external or internal to the cabinet). For the same heat-transfer rate, the flow rate requirement for a liquid and the energy consumed by the pump are typically much lower than the flow rate requirement for air and the energy consumed by the fan system. This is primarily because the specific volume of a liquid is significantly lower than that of air
Bloomberg, Jul 19, 2016, by Jack Clark.
"The internet giant is using technology from the DeepMind artificial intelligence subsidiary for big savings on the power consumed by its data centers, according to DeepMind Co-Founder Demis Hassabis
Engineered Systems, Apr. 2016, by Marcia Karr.
"A few circumstances in a data center make it ripe for a CHP design to boost efficiency. Let’s get into the options within both relevant chiller types, why payback may be shorter than expected, and the assorted potential benefits from lower costs to higher reliability. Some tips from an array of manufacturers’ reps round out this useful investigation
Engineered Systems, Feb. 2016, by Marcia Karr.
"It's not necessarily a plug-and-play situation, but these chillers can play key roles and deliver meaningful savings in several scenarios. Waste heat, CCHP, standalone, and even renewable solar as part of the refrigeration cycle can all provide the setting for absorption success
Harvard Business Review, Dec. 16, 2015, by Nate Springer and Kelly Gallo.
"The internet may seem to exist in the ether, but its plumbing includes a vast network of data centers, also known as server farms, which need power to function. In 2010, data centers represented 2% of all electricity use in the United States. Globally, it equates to 2% of all annual emissions linked to climate change. While that amount may not sound like much, it is almost equivalent to the impact of shipping all goods around the world each year. If the world is to become ever more efficient and reach global climate goals, internet power will need to play its part
Building Operating Management, Nov. 2015, by Steve Ryan and Robert Huang. [Scroll to page 48 of the journal, or page 53 of the PDF.)
"These proven strategies offer best practices that can be applied in many data centers