Author Archives: Jim Shiminski
Pumped Glycol Energy Recovery | Filtering Exhaust Air
Just skip the pre-filters in front of the exhaust side of the energy recovery device? Is that wise? We know that adding filters can impact costs: cost to purchase pre-filters labor to change disposal costs increased pressure drop This question … Continue reading
Posted in Energy Recovery, Pumped Glycol Systems
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Cost Savings with Passive Dehumidifier Heat Pipes
Puerto Rican-Based Pharmaceutical Facilities See Dramatic Energy Cost Savings with Passive Dehumidifier Heat Pipes Pharmaceutical production is popular in many tropical locations because of regulatory, tax, and labor-cost benefits. Yet many of the benefits can be easily negated if a … Continue reading
Posted in Heat Pipes, Project Snapshots
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Project Snapshot: Boston College – Air Handling Unit Refurbishment
Project Name: Boston College, Higgins Hall Location: Chestnut Hill, MA Mechanical Engineer: BR + A Manufacturer: AQUIS Equipment: Custom Indoor Air Handling Unit Refurbishment Challenge Higgins Hall is a science and research building on the main campus at Boston College, … Continue reading
Posted in AHU Refurbishment
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High Plume Dilution Fans | Handling System Effect
A mechanical engineer recently asked; How do different types of fan blades handle the system effect? Is there a best choice when it’s hard to determine system effect? I went to the expert on this one (no, not Rick). … Continue reading
Posted in High Plume Dilution Fans
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UVC Lights – 5 FAQ’s
There are a handful of questions that are commonly asked regarding UVC lights. Here are the five that we see most often. 1. What is UVC? Short-wave ultraviolet radiation, in the “C” band of 200 to 280 nanometers, has been used in a wide range … Continue reading
Posted in UVC Emitters
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Integrate VAV Diffusers Using BACnet
Acutherm, a manufacturer of components for heating and air conditioning systems, recently joined BACnet International as part of their work in integrating one of their signature products. ”Acutherm’s Therma-Fuser™ VAV System is designed to work cooperatively with a wide range … Continue reading
Posted in VAV Diffusers
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Composite Wheel Technology | A Good Idea
Composite material design has been the hot topic in new construction. We recently visited one of our manufacturers. They shared a new fan wheel design from Ziehl-Abegg. This is a design that will begin to take center stage in the … Continue reading
Posted in Air Handling Units
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5 Benefits of Using Wrap Around Heat Pipes
The wrap around heat pipe is a heat pipe wrapped around a cooling coil. It consists of two sections, the pre-cool section placed before the cooling coil and the reheat section placed after the reheat coil. The wrap around heat … Continue reading
Posted in Heat Pipes
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Ask Rick: High Plume Dilution Fans | Control with VFD’s
Q. I have a client with 6 Strobic Air fans. They operate only 1 on a VFD with another on VFD stand-by. The other 4 run at full speed. It appears to work fine so why should all fans be … Continue reading
Posted in Ask Rick, High Plume Dilution Fans
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5 Reasons to Consider a Composite Air Handling Unit
I cycle quite a bit. I average about 2,000 miles a year. Around the office that hardly counts as two workmates easily double that each year. We ride a lot and we like bicycles. When is the last time … Continue reading
Posted in Air Handling Units
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