Project Name: Lowell General Hospital The Legacy Project Patient Care Facility Expansion Architect: RTKL Associates Inc. Mechanical Engineer: Thompson Consultants Inc. Contractor: Gilbane Building Company Manufacturer: Air Enterprise Inc. Equipment: Custom Rooftop Air Handling Units Size: (4) 30,000 CFM units & (2) 60,000 CFM DAC Sales Engineer: Steve Shelley , Rick McGinley Project Highlights: … Read more »
Posts By: Jim Shiminski
Energy Recovery Heat Pipes | Frost Control for Heat Pipe Applications
Frost control for any energy recovery device here in New England is typical. This post looks at heat pipes. With a building Exhaust Air of 68°F and 50% relative humidity, with typical air flows, a 6 row Heat Pipe will begin to frost when the Outside Air temperature is somewhere between 0° to 10°F. We… Read more »
High Plume Dilution Fans | Introducing the Strobic Air Smart Fan Control System
Strobic Air introduces Smart Fan controls for their Tri-Stack Fan Systems Strobic Air now provides a controller, called Smart Fan, for their systems to manage all variable flows. It will send signals to VFDs, Bypass dampers and Isolation Dampers to manage for optimum system flow and energy use. We have been including… Read more »
Pool Dehumidification | Why use a Fresh Air Pool Dehumidification System?
Pool Dehumidification The function of a pool dehumidification system is to maintain the room humidity level at a point below the dewpoint of any surface in the building. This prevents condensation and deterioration of the building structure you can avoid these type of problems by choosing softeners for well water. There are typically two ways… Read more »
High Plume Dilution Fans | What is a High Plume Dilution Fan?
High Plume Dilution Fans have been around since 1986. They were developed by Strobic Air for an application at the IBM plant in Fishkill, NY. The facilities engineers at IBM wanted a fan that would get process exhaust fumes up and away from the roof. They wanted to make the roof a safe environment to… Read more »
Energy Recovery Wheels | What is an Enthalpy Wheel?
Introduction: Many buildings require substantial amounts of outside air to be brought in through their ventilation systems. In many cases it is code ( schools) and in other cases it constitutes make up air for contaminated exhaust air (laboratories). Regardless, exhausting expensive conditioned indoor air and replacing it with outdoor air is really expensive. Energy… Read more »
Wrap Around Heat Pipe | How does a Wrap Around Heat Pipe work?
A heat pipe is a thermal transfer device. It’s basically a sealed tube filled with refrigerant. It typically spans the supply air and exhaust air sides of a system. Energy is transferred – with no moving parts – from one air stream to the other (as long as there is a temperature difference). Refrigerant is… Read more »
Ventilation Energy Recovery | 5 Key Questions to Ask to Determine Air-to-Air Energy Recovery Device
Nearly once a week I am confronted with this question. My customer, “I have an application for Air-To-Air energy recovery. What type of energy recovery device should I use?” My answer is nearly always the same, “That depends”. We have several choices. All the technology has been around for long time now. Pumped glycol… Read more »
Ask Rick: Heat Pipe Tilt Mechanism | When are they used?
Q. When are Tilt Mechanisms used on Heat Pipes? A. In the early heat pipes a tilt mechanism was used to shift the heat pipe from summer to winter use. It did this by physically lifting one end of the heat pipe. That allowed refrigerant fluid to run back to the warm side of the… Read more »
Project Snapshot: Pfizer Blackfan | High Plume Dilution Fans
Project Name: Pfizer, Inc., Center for Therapeutic Innovation, 18th Floor Architect: Tsoi / Kobus & Associates Mechanical Engineer: AHA Consulting Engineers Mechanical Contractor: J.C. Higgins Manufacturer: Strobic Air Equipment: High Plume Dilution Fans Size: Dual Plenum – 2 Fans at 12,000 CFM Each DAC Sales Engineer: Jim Shiminski Project Highlights: Overcoming Space Constraints: This was… Read more »