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2. ASHRAE 55 - Wikipedia

   en.wikipedia.org/wiki/ASHRAE_55

   ANSI/ASHRAE Standard 55: Thermal Environmental Conditions for Human Occupancy is an American National Standard published by ASHRAE that establishes the ranges of indoor environmental conditions to achieve acceptable thermal comfort for occupants of buildings. It was first published in 1966, and since 2004 has been updated every three to six ...

3. Seasonal energy efficiency ratio - Wikipedia

   en.wikipedia.org/wiki/Seasonal_energy_efficiency...

   The EER uses mixed units, so it does not have an immediate physical sense and is obtained by multiplying the COP by the conversion factor from BTUs to watt-hours: EER = 3.41214 × COP (see British thermal unit). The seasonal energy efficiency ratio (SEER) is also the COP (or EER) expressed in BTU/watt-hour, but instead of being evaluated at a ...

4. Air changes per hour - Wikipedia

   en.wikipedia.org/wiki/Air_changes_per_hour

   Air changes per hour, abbreviated ACPH or ACH, or air change rate is the number of times that the total air volume in a room or space is completely removed and replaced in an hour. If the air in the space is either uniform or perfectly mixed, air changes per hour is a measure of how many times the air within a defined space is replaced each hour.

5. List of refrigerants - Wikipedia

   en.wikipedia.org/wiki/List_of_refrigerants

   Type ASHRAE number IUPAC chemical name Molecular formula CAS no/ blend name Atmospheric lifetime (years) Semi-empirical ODP (R-11 = 1) Net GWP 100-yr (R-744 = 1)

6. The man turning jet planes into cool houses

   www.aol.com/man-building-turning-jet-planes...

   The first plane to be converted was the US-built 1950s DC-6, which in a previous life flew freight and fuel to remote villages around Alaska. Now it’s a two-bed, one-bath stay, with a fire pit ...

7. NASA awards $4.8 billion navigation services contract to ...

   www.aol.com/news/nasa-awards-4-8-billion...

   September 17, 2024 at 5:16 PM. (Reuters) - NASA has awarded Intuitive Machines a contract of up to $4.82 billion for communication and navigation services for missions in the near space region ...