by Ian Seaton | Jul 3, 2019 | Blog
Last summer I thought it might be interesting to explore the different elements that contribute to the cost of cooling our data centers and explore the feasibility of developing some easy-to-use Excel tools to help in comparing costs of different design options and... 
by Ian Seaton | May 29, 2019 | 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... 
by Ian Seaton | May 8, 2019 | Blog
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 coils Temperature differentials delivered to... 
by Ian Seaton | Apr 24, 2019 | Blog
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... 
by Ian Seaton | Apr 10, 2019 | Blog
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....