September Lunch Meeting - Modern Pumping w/ Chris Edmondson

TOPIC: Modern Pumping for System Efficiency

      BY: Chris Edmondson, CEO

James M. Pleasants Company, Inc. 

Chris Edmondson received his B.S. Degree in Mechanical Engineering from North Carolina State University in 1967. During his summers, he worked at Barber Coleman and Jay Johnson Controls. After graduation, he spent four and a half years as a salesman with the Trane Company. In 1971, he came to work for the James M. Pleasants Co., Inc. (Manufacturer's Representative for the ITT Fluid Handling Division) He worked as an Outside Salesman until 1978, when he was promoted to Vice President and Sales Manager till 1987. From 1987 to 2010, he has served as President of the Pleasants Company. Chris is currently CEO of James M. Pleasants Company.

Chris has served many years in the ASHRAE organization, holding positions such as Secretary/Treasurer, Vice President and President of the Piedmont Chapter. For the fiscal year, 1985-86, Chris received the Rudy Ferguson Memorial Award (Presidential Award of Excellence). In 1985, he became a Technical Speaker to various ASHRAE chapters which continued through 1989. He spoke at ASHRAE's CRC Region VII meeting in 1992 and also at Birmingham's Region VII Meeting as a Technical Speaker. He held the position of Educational Activities Vice Chairman for Region IV from 1992 to 1994. In 1995 he was the Chapter Program Chairman for Region IV. He has served as Region IV DRC and on the ASHRAE Board of Directors. He is a Distinguished Lecturer for ASHRAE and is serving on the nominating committee. During 1980 through 2015, he has presented seminars to various engineers on the following subjects:

• Basic Primary/Secondary Variable Volume Pumping
• Chiller Plant Piping
• Air Control Systems
• Plumbing Piping Systems
• Cooling Tower Piping
• Basic Steam Piping
• Condensate Return Systems
• Hot Water Recirculation

His principal areas of interest are energy savings, primary/secondary variable volume systems, heat transfer, hydronic systems, plumbing piping systems and central chilled water plant design.

Synopsis: Modern Pump Selection for System Efficiency

This advanced seminar takes in depth look at pump selection to maximize system efficiency. We will learn to calculate system curves for both open and closed systems. We will examine the differences between constant and variable head and how this can impact system pumping efficiency during part load operation. This presentation will also address what “Efficiency Islands” are, how they can impact operating results along with key application considerations with examples.  

Topics Covered:   

• Basic Pump Affinity Laws
• Pump Head Loss Calculations
• Pump Curve Review
• System Curve Review
• Pump Selection Examples