Description

Track: Systems and Equipment
Sponsor: 8.1 Positive Displacement Compressors
Chair: Greg Chilcote, P.E., Member, Trane – Ingersoll Rand, La Crosse, WI

Evaluate how the latest trends are impacting HVAC system design, particularly compressor design and application. Review HVAC regulatory and market “mega trends”, focusing on refrigerants and part load efficiency. Present choices HVAC equipment designers have when selecting major components such as compressors and heat exchangers. Then focus on compressor design, including modulation through variable speed and mechanical components. Conclude with the impact of new refrigerants on compressor design.

1. HVAC Regulatory and Market Trends
Brian Smith, Johnson Controls Advanced Development and Engineering Development Center, York, PA
Amidst a rather tumultuous social and political backdrop, this presentation explores some of the key trends in the regulatory landscape, and the relevant market trends related to energy and the environment that will shape our industry’s future. This session touches upon both U.S. domestic and international actions and challenges over the past couple years with forecasts for the future.

2. Compressor and System Design Integration
William Dietrich, Member, Daikin Applied, Staunton, VA
This presentation focuses on the review and selection of components that make up a chiller package and how choices for compressor and heat exchanger designs are inter-related and the impact they have on other system components as well. Mechanical and electrical components are examined.

3. Compressor Modulation
Alberto Scala, Trane – Ingersoll Rand, La Crosse, WI
New refrigerants and new regulations are weapons against climate change. But is the compressor technology ready to be more flexible and efficient? This presentation analyzes the state of the art in HVAC Screw Compressors at part load condition, using Mechanical Unload Devices or VFD. The presentation also explains how the Variable Built in Volume Ratio (Vi) can play an important role on saving energy at part load.

4. Impact of Refrigerants on Compressor Design
Hung Pham, Emerson Commercial & Residential Solutions, Sidney, OH
This presentation reviews available refrigerants that can offer “interim” near drop-in solutions with a reasonable balance of tradeoffs among low global warming potential (GWP), efficiency, A2L flammability, and system cost. The potential “long term” path options and tradeoffs are also provided. The compressor design strategy and cycle enhancement options for short and long term paths is discussed

Presented: Sunday, January 21, 2018, 11:00-12:30 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:

2018

Units of Measure:

Dual

File Size:

1 file , 70 MB

Product Code(s):

D-CH18Sem08