Course description
In HVAC Pumps: Characteristics and Energy Efficiency, you'll learn ...
- Understand the basic types of pumps used in HVAC applications
- Understand the key fluid properties such as viscosity, density, temperature, specific weight, concentration and vapor pressure
- Understand why pump performance in typically rated feet of head and not pressure
- Understand the various head terms such as suction lift, static head, discharge head, friction head, velocity head and pressure head
Overview
Credit: 5 PDH
Length: 71 pages
Most HVAC systems are designed to handle the maximum potential temperature extremes, keeping the building cool on the hottest days and warm on the coldest days. As a result, the HVAC system only needs to work at full capacity on the ten or so hottest and coldest days of the year. On the other 345 days, the system could be operated at reduced capacity.
HVAC pumps are generally designed for peak conditions and the output of these systems is controlled by mechanically constricting the flow with throttling valves. This wastes energy. By using a variable speed drives, chilled water flows can be matched to actual heating and cooling demands.
This 5-hour course provides the students with a firm understanding of the basic principles that centrifugal pumps operate under. Topics covered include the performance curve, series operation, parallel operation, the affinity laws, friction, specific gravity and viscosity, suction lift, and NPSH.
Do you work at this company and want to update this page?
Is there out-of-date information about your company or courses published here? Fill out this form to get in touch with us.
Upcoming start dates
Who should attend?
Certificate of Completion
You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 25 questions. PDH credits are not awarded until the course is completed and quiz is passed.
Training content
This course teaches the following specific knowledge and skills:
- Understand the basic types of pumps used in HVAC applications
- Understand the key fluid properties such as viscosity, density, temperature, specific weight, concentration and vapor pressure
- Understand why pump performance in typically rated feet of head and not pressure
- Understand the various head terms such as suction lift, static head, discharge head, friction head, velocity head and pressure head
- Understand the laws of affinity and illustrate them with a pump operating under VFD control
- Understand the pump curve, system curve, operating point and the best efficiency point for the pump operation
- Understand the flat, smooth and drooping characteristic curve for the centrifugal pump and the applications for which it is best suited
- Understand the importance of specific speed and their relationship to the shape of impeller (radial, mixed or axial)
- Understand pump cavitation and its relationship to net positive suction head (NPSH) available and required
- Understand the various techniques for flow control including throttling, speed adjustment and multi-pump installation considerations in parallel or series arrangement
- Learn by example the method to compute the frictional head through the HVAC chilled water system
- Define the pumping system efficiency and the tips to achieve the same
Costs
Quick stats about PDHengineer?
Trusted by over 60,000 engineers to meet PDH requirements
Earn reward tokens with each course purchase
Triple guarantee that courses will be accepted by your state licensing board
Contact this provider
Professional Engineers have trusted PDHengineer to provide high-quality PDH courses since 2003. A large library of PDH courses and live, interactive webinars means that engineers can find PDH course material covering all of the major engineering disciplines. Plus, all PDHengineer...