Experimental optimization of cooling-tower-fan control based on field data. Master's thesis
Energy costs continue to play an important role in the decision-making process for building design and operation. Since the chiller, cooling tower fans, and associated pumps consume the largest fraction of energy in a heating, ventilating, and air-conditioning (HVAC) system, the control of these components is of major importance in determining building energy use. A significant control parameter for the chilled water system is the minimum entering condenser water set point temperature at which the cooling tower fans are cycled on and off, several studies have attempted to determine the optimum value for this minimum set point temperature, but direct measurements are not available to validate these studies. The purpose of this study was to experimentally determine the optimum minimum entering condenser water set point temperature from field data based on minimum energy consumption and to validate a chilled water system analytical model previously developed in earlier work. The total chiller system electrical consumption (chiller and cooling tower fan energy) was measured for four entering condensor water set point temperatures (70, 75, 80, and 85 deg F). The field results were compared to results obtained using an analytical model previously developed in a thesis entitled Optimized Design of a Commercial Building Chiller/Cooling Tower System, written by Joyce.
- Research Organization:
- Air Force Inst. of Tech., Wright-Patterson AFB, OH (United States)
- OSTI ID:
- 5167591
- Report Number(s):
- AD-A-239333/8/XAB; AFIT/CI/CIA-91-002
- Resource Relation:
- Other Information: Master's thesis
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BLOWERS
CONTROL
COOLING TOWERS
SPACE HVAC SYSTEMS
DECISION MAKING
ELECTRICAL PROPERTIES
ENERGY
ENERGY CONSERVATION
ENERGY CONSUMPTION
MATHEMATICAL MODELS
OPTIMIZATION
PUMPS
TEMPERATURE CONTROL
ENERGY SYSTEMS
MECHANICAL STRUCTURES
PHYSICAL PROPERTIES
TOWERS
320106* - Energy Conservation
Consumption
& Utilization- Building Equipment- (1987-)