Full Description

Track: Systems and Equipment
Sponsor: 10.1 Custom Engineered Refrigeration Systems
Chair: Tom Wolgamot, P.E., Member, DC Engineering, Missoula, MT
This seminar explores unique refrigeration applications that have helped advance the industry. Case studies presented include refrigeration aboard the International Space Station, global food storage techniques, design of micro-breweries and the first transcritical CO2 system for an NHL-sized ice rink. Specific hurdles of the applications are discussed and how the systems addressed those challenges.

1. Refrigeration Aboard the ISS
Daniel Dettmers, Member, IRC, U.W. Madison, Madison, WI
There is a tremendous interest in natural refrigerants as the effects of man-made fluids become better understood. It is perceived there are technical hurdles to deploy natural refrigerants in a broader setting, but these hurdles can be easily overcome. The International Space Station faces some of the harshest and stringent conditions imaginable for a refrigeration system. This seminar describes how ammonia was utilized in a safe and effective manner aboard this challenging environment.

2. Design of Micro-Breweries
Daniel Dettmers, Member, IRC, U.W. Madison, Madison, WI
If non-comfort cooling refrigeration is considered the "unconstrained" section of the HVACR world, then the systems being cobbled together for the world of brewpubs, nanobreweries and microbreweries has to be classified as the wild-west of refrigeration. With over 5,000 small breweries in the U.S. today, it not hard to imagine that many of these start-ups had little cash on hand. This presentation discusses a proper microbrewery refrigeration system and how it differs from a traditional large brewery. It also delves into some of the more "interesting and creative" refrigeration set ups the presenter has seen in the field.

3. Use of Transcritical Co2 in a Pumped Direct Floor Ice Rink
James Blahey, P.Eng. Member, Cimco, Winnipeg, MB, Canada
CO2 is making its way back as a viable ice rink refrigerant solution. This seminar presents an application in which CO2 is used as a primary "brine" refrigerant pumped directly into the refrigerated concrete slab. Significant pumping horsepower savings are realized along with much higher system COP's when return gas temperatures are depressed in cooler ambient conditions and overall on a seasonally adjusted basis. This ice plant utilizes semi-hermetic compressors, an adiabatic gas cooler and " stainless tubes embedded in 5" concrete slab and is a new option in both the retrofit and new construction markets.

Presented: Wedsday, January 24, 2018, 8:00 AM - 9:30 AM
Run Time: 90 min.

This is a zip file that consists of PowerPoint slides synchronized with the audio-recording of the speaker (recorded presentation), PDF files of the slides, and audio only (mp3) for each presentation.

Citation: ASHRAE Seminar Recordings, 2018 Winter Conference, Chicago, IL

Product Details

Published: 2018Units of Measure:DualFile Size: 1 file , 100 MB Product Code(s): D-CH18Sem55