Optimized pump speed control using pump water flow station for HVAC systems

Guopeng Liu, Mingsheng Liu, Gang Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

A new pump speed control method for the primary-secondary system is developed and presented in this paper. The distribution (secondary) pump speed is controlled to maintain the optimized system resistance to make the coil valves open. The system resistance can be obtained by the pump head and the water flow rate, which is calculated by the recently developed pump water flow station (PWS). The PWS measures the water flow rate using the pump head, pump speed, and pump performance curve. This method was proved experimentally in real HVAC systems. A case study is presented in this paper for application of this new method in a continuous commissioning practice. The case study shows that the PWS can control the pump speed to maintain optimized system resistance. It can also measure the water flow rate and monitor energy consumption continuously with minimal installation and maintenance expense. The results show that the new technology can save a significant amount of pump power and increase pump efficiency.

Original languageEnglish (US)
Title of host publicationASHRAE Transactions
Pages362-367
Number of pages6
Volume113 PART 2
StatePublished - 2007
Externally publishedYes
Event2007 ASHRAE Annual Meeting - Long Beach, CA, United States
Duration: Jun 23 2007Jun 27 2007

Other

Other2007 ASHRAE Annual Meeting
CountryUnited States
CityLong Beach, CA
Period6/23/076/27/07

Fingerprint

Speed control
Pumps
Water
Flow rate
HVAC
Energy utilization

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

Cite this

Liu, G., Liu, M., & Wang, G. (2007). Optimized pump speed control using pump water flow station for HVAC systems. In ASHRAE Transactions (Vol. 113 PART 2, pp. 362-367)

Optimized pump speed control using pump water flow station for HVAC systems. / Liu, Guopeng; Liu, Mingsheng; Wang, Gang.

ASHRAE Transactions. Vol. 113 PART 2 2007. p. 362-367.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Liu, G, Liu, M & Wang, G 2007, Optimized pump speed control using pump water flow station for HVAC systems. in ASHRAE Transactions. vol. 113 PART 2, pp. 362-367, 2007 ASHRAE Annual Meeting, Long Beach, CA, United States, 6/23/07.
Liu G, Liu M, Wang G. Optimized pump speed control using pump water flow station for HVAC systems. In ASHRAE Transactions. Vol. 113 PART 2. 2007. p. 362-367
Liu, Guopeng ; Liu, Mingsheng ; Wang, Gang. / Optimized pump speed control using pump water flow station for HVAC systems. ASHRAE Transactions. Vol. 113 PART 2 2007. pp. 362-367
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