REGION VI
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Speaker—Dr. Jerry Sipes, Ph.D., P.E.
TRACK #2

Jerry Sipes is the Vice President of Engineering for Price Industries and is a Professional Engineer with more than nineteen years of experience in the HVAC field.  He is the past Chairman of ASHRAE Standard 130 “Methods of Testing for Rating Ducted Air Terminal Units”, the Past Chairman of ASHRAE Technical Committee 2.1 “Physiology and Human Environment”, serves as a voting member of ASHRAE Technical Committee 5.3 “Room Air Distribution”, and serves as the Chairman of the Air-Conditioning and Refrigeration Institute (ARI) Air Control and Distribution Devices (ACDD) Section.  He serves as the Chairman of  both the Chilled Beams Rating Standard at AHRI and Chilled Beams Method of Testing Standard at ASHRAE.  In 2001, he received the Ralph G. Nevins Physiology and Human Environment Award, which is awarded to a researcher for “significant accomplishment in the study of physiology and human response to the environment”.  His principle technical areas of interest are heat transfer, fluid flow, human thermal comfort, HVAC and acoustics.

Dr. Jerry Sipes, Ph.D., P.E.

· Energy Track, Session 3: ENGINEERING RADIANT COOLING/HEATING SYSTEMS, CHILLED BEAMS AND CHILLED SAILS

· Energy Track, Session 4: DISPLACEMENT VENTILATION SYSTEMS SPECIFIC APPLICATION

PRESENTING:

Overview of presentations:

 

Designing for Personal Comfort with Radiant Cooling, Displacement and Underfloor Air Distribution

This presentation discusses why both displacement and underfloor air distribution increases the personal comfort when compared to the traditional overhead air distribution design approach. Radiant heating and cooling will also be discussed.  This presentation will discuss the following topics:

 

Comfort Criteria per ASHRAE Standard 55

Underfloor Air Distribution basics

Underfloor Turbulent Flow (Video)

Displacement Air Distribution basics

Displacement Air Distribution (Video)

Radiant Systems Overview

 

Displacement Ventilation serves as a very Green friendly air distribution method which provides a comfortable indoor environment while supplying the fresh air ventilation and cooling requirements.  This presentation concentrates on the following topics:

Background Information on Displacement

Comfort Criteria

Air distribution

Design Considerations

Architectural aspects of Displacement

Humidity Control

Sound Transmission

Air Quality

LEEDS Points

 

 

Fundamentals of Acoustics

This presentation is composed of the basics of acoustics including: sound power, sound pressure, sound sources, dBA, NC, RC, sound pertaining to grilles, registers and diffusers and sound pertaining to terminal units.  Also include is a discussion on the sound standards and application of the standards for buildings including sound sensitive spaces such as schools and surgical centers.

 

Duct Acoustics

This presentation discusses the impact different liners, duct geometries, inlet conditions, discharge conditions, etc. on the sound absorption           

 

Terminal Acoustics

This presentation discusses the application of the AHRI Standard 885, “Procedure For Estimating Occupied Space Sound levels in the Application of Air Terminals and Air Outlets”.

 

Underfloor Ventilation serves the same purpose as conventional overhead systems: to provide a comfortable environment while maintaining the required fresh air ventilation and dissipating heat loads.  This presentation will discuss the following topics:

Background Information on Underfloor Air Distribution

Comfort Criteria

Underfloor Displacement

Underfloor Turbulent Flow (Mixed Mode)

Underfloor Pressurized Plenums

Humidity Control

Sound Transmission

Air Quality

Design Considerations

LEEDS Points

(Rules of Thumb) / (Typicals)

 

Controls

This presentation is composed of an overview of pneumatic, analog and digital controls for buildings; a discussion of controls and some of the issues associated with Underfloor Air Distribution and an overview of the new Price Electronic Digital Controls (PEDC).  This presentation also includes a discussion on selection of terminals and a brief discussion on troubleshooting installation issues.

 

Fundamentals of Overhead Air Distribution

This presentation is composed of an overview of how overhead air diffusers operate; the different types of distribution devices; how to select the diffuser based on either noise criteria (NC), throw distance or pressure drop.  How to properly correct throw distances for differing supply air temperatures is discussed.