Welcome to the Upsite Blog

Is the time right for the 100 degree Fahrenheit data center? It sure seems like it should be with the ASHRAE TC9.9 guidelines allowing server inlet temperatures up to 95˚F for Class A2 servers, 104˚F for Class A3 servers and 113˚F for Class A4 servers. When we finally...

First of all, although this post will cover the concept of liquid cooling, it’s important to note that we’ll take a bit of a higher-level approach initially to better understand the market. With that being said, liquid cooling is a very real technology being leveraged...

Simply put, the term ‘delta T’ refers to the change in temperature through various locations in the computer room. However, depending on who you ask you’ll likely get a different answer as to where THE delta T is located. If you ask Facilities person, they might talk...

In this long series on cooling efficiency algorithms dating back to last September, I have presented tools for quantifying the energy use impact in the data center of:Pressure and temperature differentials across cooling coilsTemperature differentials delivered to...

We get the chance to talk about a lot of interesting things here on the Upsite blog. Future technologies, ways you can make your data center more efficient, and how to plan around better designs for your business initiatives.However, we don’t always discuss the...

On those occasions when we are fortunate enough to share a lunch or happy hour with a vendor of any sort of data center mechanical plant system, accessory or mechanical infrastructure, the only phrase we might hear more often than “ΔT,” would be, “How many do you...

Heat exchangers refer to any kind of device used to transfer heat from one fluid to another fluid without direct contact between the fluids. Heated fluid flowing through one part of the heat exchanger transfers its heat to another cooler fluid or to the outside air....

Data Center World was, once again, a success and a really fun event to attend. There have been some really fascinating developments in the data center world. None more so than the growth we’re experiencing as more organizations leverage the power of the data center...

Last week, Upsite Senior Engineer and Company Science Officer, Lars Strong P.E., headlined an educational session at AFCOM's Data Center World Global Conference in Phoenix, AZ. The session, titled For Most Data Centers, Liquid and Air Cooling Will Not Be Mutually...

This is the second half of a series on best practices for achieving airflow management efficiency savings. If you haven’t already, read the first half of the series here.If you are operating with CRAH units and chilled water from a chiller, then you can start reaping...

Long-time reader Hondo Q. from data center hot bed Lihue, Kauai writes in, “What’s going on? I have plugged all the holes in my data center; I have installed blanking panels in every unused rack mount space; I have put in floor grommets in all the tile cut-out...