Adiabatic Cooling for Data Centers
R. Stephen Spinazzola, PE, LEED APShumate Engineering, PLLC Adiabatic cooling, the reduction in temperature when air pressure is lowered, is well known to all, and is witnessed in nature. For instance, stand near a waterfall on a hot day and experience a refreshing drop in temperature- that’s adiabatic cooling. A warm air mass ascending a […]
Direct Liquid Cooling & its Impact on Mission Critical Facilities Design
An Introduction to Hybrid Dry Adiabatic Cooling (TM)
Heating with Chilled Water
The first question to be asked is how can you do it?
Let’s look at a modern data center that is using sensible only cooling units in the data
center. A current example with a confidential client is using 75 deg. F chilled water supply
to make 80.6 Deg. F supply air to the cold aisle. The return chilled water is 95 Deg. F and
the hot aisle temperature is 100 Deg. F.
Dedicated Outside Air with Sensible Cooling
DOA w/ TSC DEFINED
• Decoupling Temperature and Humidity Control
• Dedicated Outside Air Unit: Dual Heat Wheel
• Terminal Sensible Cooling
• Terminal units designed for the application
• Passive chilled beams
• Active chilled beams
Electromagnetic Pulse and its Impact on the Design of Mission Critical Facilities
R. Stephen Spinazzola, PE, LEED APShumate Engineering, PLLC Our understanding of electromagnetic pulse energy in its many forms and permutations has been around since we have studied and understood lightning. The energy emitted is more than the electric charge, and there is an accompanying magnetic pulse that can cause damage as well. “An electromagnetic pulse […]