Posts By: Jim Shiminski

Custom Air Handling Units | 5 Reasons to use All Aluminum Construction

5 reasons to use All Aluminum Construction for Custom Air Handling Units? Aluminum provides excellent corrosion resistance without the need for paint. Painting and galvanization can be scrapped off during transportation, rigging and assembly of the unit. Rust and corrosion reduce the structural integrity of the unit. Low Weight –  Aluminum construction can reduce overall… Read more »

Project Snapshot: Millipore Research and Development | Energy Recovery Air Handling Unit

Project: Millipore R&D Building Location: Bedford,  MA Engineer: Parsons Contractor: Turner Construction Company Manufacturer: Strobic Air, Cambridgeport, Heat Pipe Technology Equipment: Energy Recovery Air Handling Units Size: (4) 30,000 CFM Units DAC Sales Engineer: Jim Shiminski  Project Challenge:     This was a new building project.  The engineer, owner and contractor were all looking to create a… Read more »

Ask Rick: Pumped Glycol Energy Recovery | Pressure Drop for Konvekta Coils?

Q.  What is a typical pressure drop across the Konvekta coils? A.  The air pressure drop across the coils depends on several factors: number of rows, air face velocity, fin spacing and tube alignments. There is a trade-off between thermal efficiency and air pressure drop which will be one of the design considerations if we… Read more »

Pumped Glycol Energy Recovery | Konvekta High Performance Heat Exchanger Coil

Konvekta is the only supplier of high efficiency pumped glycol run-around energy recovery systems in the world.  They have been in the business of pumped glycol energy recovery  since 1949.  That’s all they do.  Konvekta offers complete systems – high performance heat exchangers, energy recovery system controls and hydraulic assembly. The Konvekta coil design is… Read more »

Project Snapshot: United Electric | Energy Improvements with VAV Diffusers

Project Highlights: Prior Conditions: Most of the areas of the engineering, manufacturing, assembly, test, inspection and packaging areas were all being served by 2 large central Air Handling Units (AHUs) running constant volume.  Manufacturing equipment and machines located at the southern end of the building could never get enough cooling during warmer months.  At the… Read more »

Ask Rick: Lab Exhaust Fans | What Standards to reference for Lab Exhaust Fan design?

Q.  I am designing a lab exhaust system and using Strobic fans. What standards, both ASHRAE and otherwise, should I be using as a reference? A.   Below are a list of standards related to laboratories and laboratory ventilation: NFPA-45 – Fire Protection for laboratories UL 705 – standard for Power Ventilators in accordance with the… Read more »

Custom Air Handling Units | 5 Reasons to use Custom Air Handling Units

Custom Air Handling Units (AHU’s)  Here’s a look at why engineers and owners choose to use them. Quality:  Custom Air Handling Units are built to last longer.  They have significantly better fit and finish.  Units fabricated from all aluminum bases and casings, like those from Air Enterprises, have a similar life as a building (50… Read more »

Ask Rick: High Performance Fume Hoods | Are Pass Thru Fume Hoods considered High Performance Hoods?

Q.  Are pass thru fume hoods considered ‘High Performance Hoods’?   A.  Pass Thru Fume Hoods are not high performance hoods.  Under good conditions, with one sash open between 12” and 18”,  the hoods can contain at lower velocities.   But, performance is different for each installation and dependent on lots of variables.   To achieve maximum… Read more »