Location
Online GoTo Meeting: This months meeting will be free!
Please Note:
Meeting URL, Access code and registration info will be provided in your confirmation email after you register for the event.
Please Note:
Meeting URL, Access code and registration info will be provided in your confirmation email after you register for the event.
Meeting Agenda
11:30 a.m. - 11:45 a.m. – Meeting Start/ Announcements
11:45 a.m. - 1:00 p.m. – Presentation
11:45 a.m. - 1:00 p.m. – Presentation
Presentation Description
Presentation: System Design Considerations for Sensor-Less Pumping
Presenter: Eric Dawson, P.E. CPD, Dawson Company
Topic Description:
HVAC centrifugal pumps utilizing sensor-less controls compared to direct-sensored feedback has gained popularity in modern HVAC Systems. These systems have the advantage of reduced installation costs by not requiring a remote pressure sensor (or multiple) to be installed at the critical coil(s) of a system.
How does the sensor-less pump know or approximate the system requirements?
What does the mechanical engineer need to consider from a systems design standpoint in order to ensure equivalent (or better?) operation relative to a traditional direct-sensored system?
This presentation will review the following concepts:
Presenter: Eric Dawson, P.E. CPD, Dawson Company
Topic Description:
HVAC centrifugal pumps utilizing sensor-less controls compared to direct-sensored feedback has gained popularity in modern HVAC Systems. These systems have the advantage of reduced installation costs by not requiring a remote pressure sensor (or multiple) to be installed at the critical coil(s) of a system.
How does the sensor-less pump know or approximate the system requirements?
What does the mechanical engineer need to consider from a systems design standpoint in order to ensure equivalent (or better?) operation relative to a traditional direct-sensored system?
This presentation will review the following concepts:
- Affinity Laws and System Curve (Variable Head Loss)
- Control Curve
- Control Area
- Branch-to-Riser-Pressure-Drop (BRPD) Ratio
Presenter Bio
Eric Decker graduated from the University of Illinois at Chicago with a B.S. in Mechanical Engineering. After graduating, he worked for Bell & Gossett in Morton Grove, IL in the Commercial Pumps Marketing Department. In Fall of 2011, Eric joined Dawson Company's Business Development Group calling on mechanical and plumbing consulting engineers in the Orange County area. In Fall of 2017, Eric became manager of the department.
Eric is a Registered Professional Mechanical Engineer (P.E.) as well as Certified in Plumbing Design (CPD). He is also past President of the Orange County ASHRAE Chapter.
Eric is a Registered Professional Mechanical Engineer (P.E.) as well as Certified in Plumbing Design (CPD). He is also past President of the Orange County ASHRAE Chapter.