Posts Categorized: Energy Wheels

Project Snapshot | Energy Recovery Unit – Tuck School at Dartmouth College

Project Name:     Whittemore Hall Owner:     Tuck School of Business at Dartmouth College Project Application:     Dormitory for Tuck Students Mechanical Engineer:     BR+A Equipment:     Energy Recovery Unit Manufacturer:     Annexair Size:     15,000 CFM   Whittemore Hall The Tuck School of Business at Dartmouth College in New Hampshire was founded in 1900…. Read more »

Project Snapshot | Energy Recovery Wheels For Hospitals

Walter Reed National Military Medical Center                     Project Overview Project Name: Walter Reed National Military Medical Center Location: Bethesda, Md. Floor area: 515,000-square-foot ambulatory care building; 162,000-square-foot hospital addition; 450,000-square-foot hospital renovation; and 943-space parking structure Number of floors: Various Number of beds: 174 (of 345… Read more »

Energy Recovery Wheel | Purge Section

There are two ways that air can leak from the exhaust side to the supply side of a wheel: Cross-Flow Leakage – occurs when air leaks from the exhaust side to the supply side through the seals or any gaps in the construction. Carryover Leakage – occurs in rotary recovery wheels as the wheel rotates… Read more »

Ask Rick: Energy Recovery Wheel | Question on ANSI/ASHRAE Standard 62.1-2010

Q.  It appears that the ANSI/ASHRAE Standard 62.1-2010 restricts the use of wheels for lab use.  Is this the correct interpretation?   A.  As it stands ANSI/ASHRAE Standard 62.1-2010 is not clear on the question of Class 4 exhaust (which includes lab fume hood exhaust).  The standard reads as follows: 5.16.3.3.2 Class 3 air shall… Read more »