Posts By: Jim Shiminski

What’s so special about Konvekta?

We have represented Konvekta for nearly eight years now.  In that time, we have designed and delivered over 34 separate projects.  We have supplied Konvekta equipment to a very impressive User Group including key owners like UMass Medical, Boston Children’s Hospital, Harvard, Dartmouth, Yale, Novartis and Millipore. In those eight years, there have been some key… Read more »

ECM Fan Retrofit with Q-PAC

ECM Motors and Fans have provided a practical solution to most AHU fan retrofits.  There are a lot of good reasons to consider them in your HVAC designs.  (7 Reasons to Use ECM Motors).  Watch how simple the process can be. Related Blog Posts:   Custom Air Handling Unit Design | The ECM Fan Array… Read more »

Indoor Pool Dehumidifier – With NO Outdoor Condenser?

BREAKTHROUGH POOL DEHUMIDIFICATION DESIGN Can you build a pool dehumidification unit without a remote condenser?   Today,  the answer is YES!   Seresco  has introduced a new revolutionary design that needs no outdoor condensing unit.  This is really ingenious; complete dehumidification with cooling and no External Condensing Unit.  Yes, correct, Seresco has now developed a unit that… Read more »

Project Snapshot: Ayer-Shirley High School | Thermal Composite – DOAS Units

  Project Name: Ayer-Shirley High School  Architect: Symmes Maini & McKee Associates Mechanical Engineer: Symmes Maini & McKee Associates Mechanical Contractor: E. Armanti & Sons, Inc. Equipment: 4 Dedicated Outdoor Air Handling Units Manufacturer: Annexair Size: 3,500, 5,500, 10,000 and 12,000 CFM DAC Sales Engineer: Pat Will Project Overview: The towns of Ayer and Shirley,… Read more »

Project Snapshot: Gordon College – Pool Dehumidification Unit

Project Name: Gordon College – Bennett Center Owner: Gordon College Mechanical Engineer: CSI Engineering Mechanical Contractor: Merrimack Valley Corp. Equipment: Pool Dehumidification Unit Manufacturer: Seresco Size: 24 Ton Modular 2-compressor 200 Series dehumidifier DAC Sales Engineer: Craig Ashman Gordon College – Bennett Center  The Gordon College Bennett Center is a 78,000-square-foot athletics and recreational sports… Read more »

Project Snapshot: Amalie Arena – Home to the Tampa Bay Lightning

Project Name:   Amalie Arena Tower Air Handling Unit Replacement Location:   Tampa Bay, Florida Project type, building type:   Sports Complex Equipment:  Wrap Around dehumidification heat Pipes Manufacturer:  Heat Pipe Technology Engineering challenges Before Heat Pipe Technology’s involvement, the arena’s ice quality was ranked near the bottom among NHL arenas. This was largely due to the Tampa… Read more »

Freeze Block Coil – Technology Based Solutions

A Freeze Block Coil is the Best Way to Prevent Frozen Coil Damage Freeze damage is the leading cause of premature HVAC coil failure. Frozen fluid coils can result in severe damage to the coil, system downtime, expensive repairs and/or replacement and in some cases flood damage throughout the building. This is a new coil… 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 »

Pumped Glycol Energy Recovery | Efficiency vs. Effectiveness

Topic: High Performance Run Around Energy Recovery Systems Guest Blogger: Rudolf Zaengerle, Ph. D. Konvekta USA, Inc There is some confusion about the terms ‘efficiency’ and ‘effectiveness’:  Efficiency ASHRAE defines ‘temperature transfer efficiency’ (or sometimes ‘enthalpy transfer efficiency’ if enthalpy is used instead of temperature) as follows: μT = (TE1 – TE2) / (TE1 –… Read more »