High Plume Dilution Fans for Diesel Generator Exhaust: Emergency diesel generators are necessary evils for lots of facilities. No one likes to have them around, but they must be available to provide immediate backup electrical power in case of sudden power failure. Diesel/electric generators must also meet critical performance requirements, but they can also… Read more »
Posts Categorized: High Plume Dilution Fans
Ask Rick: High Plume Dilution Fans | Adding VFDs to Existing System
Q. We are considering conversion of constant speed Strobic fans (six fans on a common mixing plenum) into variable speed fans by adding VFD’s to satisfy the the plenum static pressure set point. What do you recommend to ensure that we do not run them below the required minimum plume height. Over the years… Read more »
Ask Rick: Labratory Exhaust Fans | When should you manifold laboratory exhausts?
Q. When should you manifold laboratory exhausts? We have been asked this questions countless times through the years. In the past, public opinion held that you don’t know what lab chemicals are being work with so you don’t combine any lab exhaust. All laboratory hoods were serviced by individual exhaust fans. This was extremely expensive… Read more »
Project Snapshot: High Plume Dilution Fans | Odor Control
Project Type: Regional Paper Company Project Application: Odor Remediation Equipment: High Plume Dilution Fan Size: 10,000 CFM at 2.5″ SP Manufacturer: Strobic Air DAC Sales Engineer: David Goodman Project Highlights: The Problem: One of the neighbors on the hill above the paper manufacturing plant claimed to be smelling the chemicals being exhausted from the… Read more »
High Plume Dilution Lab Exhaust Fan | Mixed Flow Fan Curve
Lab Exhaust Fan | Mixed Flow Fan Curve Review Many High Plume Dilution Fans used for Lab Exhaust are mixed flow type fans. The Mixed Flow Fan Curve is different from traditional centrifugal fan curves. For one, it doesn’t have a stall point. It can be completely starved of air and still remain in stable… Read more »
Ask Rick: Lab Exhaust Fans | Vibration Isolation for Strobic Air Tri-Stack Fans
Q. We are recommending high plume dilution lab exhaust fans from Strobic Air for a project. What would you recommend for vibration isolation? A. Strobic Air recommends that the Tri-Stack Fan be mounted on a 1½” wide strip of ¼” neoprene pad. No further vibration isolation is required or recommended. Tri-Stack fans are balanced… 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: Lab Exhaust Fans | Lab Exhaust Stack vs. Air Intake Location
Q. The commissioning engineer has commented that the Heat Recovery Unit (HRU) does not meet the 25’ separation distance between the Intake hood and Exhaust Discharge requirement. I believe that our design with the effective plume height of 44’ and the fan discharge 16’ above the inlet of the intake hood is better than a… 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 »
High Plume Dilution Fans | 3 Key Design Questions
There are three key design questions that we ask when designing every High Plume Dilution Fan application. They are the basic questions that determine every design choice down the line. They will be asked at some point, so better to deal with them early in the design process. Q. Is there redundancy required in the… Read more »