Posts Categorized: Heat Recovery Units

Project Snapshot: Alkermes

Project Name: Alkermes  Architect: Elkus Manfredi Archtects Mechanical Engineer: AHA Consulting Engineers Mechanical Contractor: Hamel & McAlister Equipment: (2) Custom Penthouse AHUs, (2) EAHUs, (1) Konvekta Heat Recovery Skid (6) MK Plastics High Plume Dilution Fans, (2) 450 ton Oil-Free Chillers, (21) Carel HeaterSteam Humidifiers Manufacturer: Konvekta, Cambridgeport, MK Plastics, Smardt, Ingenia Carel Size: 140,000 CFM… Read more »

UVM – STEM Complex | Pumped Glycol Energy Recovery System

Project Name: University of Vermont STEM Complex  Architect: Freeman, French & Freeman, Inc. Mechanical Engineer: BR + A Consulting Engineers Mechanical Contractor: VHV Company Equipment: OA Intake and EA Discharge Plenums Manufacturer: Konvenkta, Size: 148,300 CFM DAC Sales Engineer: Brad Carpenter Project Overview: The University of Vermont’s $104 million investment in a new Science Technology… Read more »

Harvard University Biology Lab HVAC Upgrade | Pumped Glycol Energy Recovery System

Project Name: Harvard University Biology Lab HVAC Upgrade Architect: Perkins & Will Mechanical Engineer: Rist-Frost Shumway Engineering Mechanical Contractor: J.C. Higgins Equipment: Pumped Glycol Energy Recovery System and High Plume Laboratory Dilution Fans Manufacturer: Konvekta, MK Plastics Size: 144,000 CFM DAC Sales Engineer: David Goodman Project Overview: This project replaces the Biolabs’ aged HVAC infrastructure with… Read more »

Energy-Efficient Makeup Air Units

Topic: Energy-Efficient Makeup Air Units Guest Blogger: Hugh Crowther, P.ENG., Ashrae Member Unless you live in paradise, delivering makeup air to most buildings is expensive.  Table 1 shows the amount of work it takes to heat and cool air (based on Chicago  conditions) for a standard rooftop unit (a unit that recirculates air with typical… Read more »

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 »

Air Handling Unit Design | A More Efficient Direct Drive Plenum Fan

We are using significantly more and more direct drive fans these days.  Annexair,  a leader Energy-Efficient Air Handling Systems, standardizes on direct drive fans for all their units.  They are more efficient, quieter, require less maintenance and last longer (see – 4Reasons Why we choose Direct Drive Fans).  The efficiencies of these fans were a… Read more »