Q. Is it required to add an R-Ring for every Acutherm Therma-Fuser installed? Will the R-Ring replace the return air diffuser (typically installed with regular supply air diffuser)? In what application do you need an R-Ring? Why is it an option? Is it required to add an R-Ring for every Acutherm Therma-Fuser installed? No… Read more »
Posts By: Jim Shiminski
Project Snapshot | UMass Boston – Integrated Science Complex
The new 220,000 square foot Integrated Science Complex at the University of Massachusetts – Boston Campus will be the first new academic building on the campus since it opened in 1974. The building is expected to achieve LEED Silver certification and will open in 2014. A state of the art Konvekta energy recovery system is… Read more »
High Plume Dilution Fans | Seven Clicks From Your Best Selection
We have been working with high plume dilution fans since their inception (over 25 years ago). It’s absolutely amazing what we see on some schedules these days. For the most part, they will work in the design. Problem is that in many cases they are not optimized for the right variables. There are at… Read more »
Ask Rick: DOAS System | Sensible Wheel vs. Heat Pipe
Q. I am working on the design of a Dedicated Outdoor Air System ( DOAS ) unit. I am leaning towards using double wheel units (latent and sensible wheels). What is your opinion on this approach vs. using a wraparound heat pipe. Rick… From my viewpoint the dual wheel design is a much less efficient… Read more »
Indoor Pool Design: Part 1 of 4 – Confirming Owner Expectations
Ralph Kittler, VP Sales, Co-Founder Seresco Technologies Inc. presents the A to Z of indoor pool design in a series of short segments that focus on key issues for engineers and architects. Here is Part 1 in a series of 4 videos. Part 1: One of the most important, but often overlooked aspects of… Read more »
Pool Dehumidification | Pool Load Data Sheet
Pool dehumidification unit replacement is a large and growing business. Pool environments are very harsh and mechanical dehumidification systems have a typical lifespan of about 10 years. Building owners looking to replace equipment typically can provide model numbers, CFM capacities and like information. That is all good but it’s always important to start fresh on… Read more »
Project Snapshot: Custom Field Erected AHU for University of Texas
Project Name: University of Texas Tower Air Handling Unit Replacement Location: Austin, Texas Project type, building type: System overhaul, school (college, university) Mechanical Engineer: EEA Consulting Engineers Equipment: Custom Field Erected Air Handling Manufacturer: Air Enterprises (AEI) Project duration: 1.5 years Project completion date: April 30, 2007 Engineering challenges Location and space constraints for the… Read more »
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 has been asked before and opinions have been offered by facility engineers. Prefilters in Front… Read more »
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 production facility doesn’t properly mitigate high humidity, an environmental feature that comes part and parcel… Read more »
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, home to over 20,000 students in Chestnut Hill, Massachusetts. Their built-up air handling units, manufactured… Read more »