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Science and Technology for the Built Environment Volume 25, 2019 - Issue 7
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Original Articles

Development of control quality factor for HVAC control loop performance assessment—II: Field testing and results (ASHRAE RP-1587)

Ran LiuChina Building Design Consultants, Beijing, ChinaView further author information
,
Yanfei LiDepartment of Mechanical Engineering, The University of Alabama, Box 870276, Tuscaloosa, AL 35487, USA;National Renewable Energy Laboratory, Golden, CO, USAView further author information
,
Zheng D. O’NeillDepartment of Mechanical Engineering, The University of Alabama, Box 870276, Tuscaloosa, AL 35487, USACorrespondence[email protected]
View further author information
&
Xiaohui ZhouSeventhwave, Madison, WI, USAView further author information
Pages 873-888 | Published online: 10 Apr 2019

Figures & data

Fig. 1 Room air temperature control in cooling mode (VAV).

Fig. 1 Room air temperature control in cooling mode (VAV).

Fig. 2 Room supply airflow fraction in cooling mode (VAV).

Fig. 2 Room supply airflow fraction in cooling mode (VAV).

Fig. 3 Room air temperature control loop assessment (VAV cooling mode).

Fig. 3 Room air temperature control loop assessment (VAV cooling mode).

Fig. 4 Weighted control performance for room air temperature control (CQF-Harris).

Fig. 4 Weighted control performance for room air temperature control (CQF-Harris).

Fig. 5 Weighted control performance for room air temperature control (CQF-EWMA).

Fig. 5 Weighted control performance for room air temperature control (CQF-EWMA).

Table 1. Weighted CQF scores.

Fig. 6 Heat exchanger hot water supply temperature control.

Fig. 6 Heat exchanger hot water supply temperature control.

Fig. 7 Heat exchanger supply water valve opening.

Fig. 7 Heat exchanger supply water valve opening.

Fig. 8 CQF assessment for heat exchanger water supply temperature control loop: (left) CQF-Harris; (right) CQF-EWMA.

Fig. 8 CQF assessment for heat exchanger water supply temperature control loop: (left) CQF-Harris; (right) CQF-EWMA.

Fig. 9 AHU supply air static pressure control.

Fig. 9 AHU supply air static pressure control.

Fig. 10 AHU supply air fan speed.

Fig. 10 AHU supply air fan speed.

Fig. 11 Assessment for AHU supply air static pressure control: (left) CQF-Harris; (right) CQF-EWMA.

Fig. 11 Assessment for AHU supply air static pressure control: (left) CQF-Harris; (right) CQF-EWMA.

Fig. 12 Energy Resource Station—southeast view.

Fig. 12 Energy Resource Station—southeast view.

Fig. 13 Energy Resource Station floor plan.

Fig. 13 Energy Resource Station floor plan.

Fig. 14 Schematic of test room HVAC system.

Fig. 14 Schematic of test room HVAC system.

Table 2. ERS VAV box design specification.

Table 3. Stages of baseboard heat.

Table 4. Occupancy simulator control modes.

Table 5 Test design parameters.a

Fig. 15 CQF inputs and CQF-Harris (room cooling South B).

Fig. 15 CQF inputs and CQF-Harris (room cooling South B).

Fig. 16 CQF inputs and CQF-EWMA (room cooling South B).

Fig. 16 CQF inputs and CQF-EWMA (room cooling South B).

Fig. 17 CQF-Harris comparison (room cooling South B).

Fig. 17 CQF-Harris comparison (room cooling South B).

Fig. 18 CQF-EWMA comparison (room cooling South B).

Fig. 18 CQF-EWMA comparison (room cooling South B).

Fig. 19 CQF inputs and CQF-Harris (room heating West B).

Fig. 19 CQF inputs and CQF-Harris (room heating West B).

Fig. 20 CQF inputs and CQF-EWMA (room heating West B).

Fig. 20 CQF inputs and CQF-EWMA (room heating West B).

Fig. 21 CQF-Harris comparison (room heating West B).

Fig. 21 CQF-Harris comparison (room heating West B).

Fig. 22 CQF-EWMA comparison (room heating West B).

Fig. 22 CQF-EWMA comparison (room heating West B).

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