Model calibration remains a significant topic for both researchers and practitioners in the HVAC field although calibrated building and air-handling unit (AHU) models have been used for “measuring” building energy retrofit/commissioning savings, identifying operational problems, and optimizing system operation and control schedules for decades. This paper discusses the modeling and simplification of building and AHU systems used in the simplified model calibration process. The paper presents a two-level calibration procedure integrated with energy signatures for simplified building and AHU heating and cooling energy consumption models. The procedures are demonstrated using a detailed example. This procedure can be implemented into computer simulation programs to allow automatic calibration and fault detection in many HVAC engineering processes.

1.
Bronson
,
D. J.
,
Hinchey
,
S. B.
,
Haberl
,
J. S.
, and
O’Neal
,
D. L.
,
1992
, “
A Procedure for Calibrating the DOE-2 Simulation Program to Non-Weather-Dependent Measured Loads
,”
ASHRAE Trans.
,
98
, Pt.(
1
), pp.
636
652
.
2.
Ayres
,
J. M.
, and
Stamper
,
E.
,
1995
, “
Historical Development of Building Energy Calculations
,”
ASHRAE Trans.
,
101
, Pt.(
1
) pp.
841
849
.
3.
Schuldt
,
M. A.
, and
Romberger
,
J. S.
,
1998
, “
Alternative Approaches to Baseline Estimation Using Calibrated Simulations
,”
ASHRAE Trans.
,
104
, Pt.(
2
), pp.
871
879
.
4.
Diamond
,
S. C.
, and
Hunn
,
B. D.
,
1981
, “
Comparison of Doe-2 Computer Program Simulations to Metered Data for Seven Commercial Buildings
,”
ASHRAE Trans.
,
87
, Pt.(
1
), pp.
1222
1231
.
5.
Hsieh, E. S., 1988, “Calibrated Computer Models of Commercial Buildings and their Role in Building Design and Operation,” M.S. Thesis, Princeton University, Princeton, NJ.
6.
Kaplan
,
M. B.
,
McFerran
,
J.
,
Jansen
,
J.
, and
Pratt
,
R.
,
1990
, “
Reconciliation of A DOE2.1C Model with Monitored End-Use Data for A Small Office Building
,”
ASHRAE Trans.
,
96
, Pt.(
1
), pp.
981
993
.
7.
Hinchey S. B., 1991, “Influence of Thermal Zone Assumptions on DOE-2 Energy Use Estimations of A Commercial Building,” M.S. Thesis, Mechanical Engineering Department, Texas A&M University, College Station, TX.
8.
Hunn, B. D., Banks, J. A., and Reddy, S. N., 1992, “Energy Analysis of the Texas Capitol Restoration,” The DOE-2 User News, 13(4): 2–10.
9.
Kaplan, M. B., Caner, P., and Vincent, G. W., 1992, “Guidelines for Energy Simulation of Commercial Buildings,” Proceedings of the ACEEE 1992 Summer Study on Energy Efficiency in Buildings, Vol. 1, pp. 1.137–1.147.
10.
Haberl
,
J.
,
Bronson
,
D.
,
Hinchey
,
S.
, and
O’Neal
,
D.
,
1993
, “
Graphical Tools to Help Calibrate the DOE-2 Simulation Program to Non-Weather Dependent Measured Loads
,”
1993
ASHRAE Journal
,
35
(
1
), pp.
27
32
, (January).
11.
Clarke
,
J. A.
,
Strachan
,
P. A.
, and
Pernot
,
C.
,
1993
, “
An Approach to the Calibration of Building Energy Simulation Models
,”
ASHRAE Trans.
,
99
, Pt.(
2
), pp.
917
927
.
12.
McLain, H. A., Leigh, S. B., and MacDonald, J. M., 1993, “Analysis of Savings due to Multiple Energy Retrofits in A Large Office Building,” Oak Ridge National Laboratory, ORNL Report No. ORNL/CON-363, Oak Ridge, TN.
13.
Bou Saada, T., and Haberl, J., 1995, “A Weather-Day Typing Procedure for Disaggregating Hourly End-Use Loads in An Electrically Heated and Cooled Building From Whole-Building Hourly Data,” Proceedings of the 30th Intersociety Energy Conversion Engineering Conference, July 31–August 4, Orlando, Florida.
14.
Haberl, J. S., Bronson, J. D., and O’Neal, D. L., 1995, “An Evaluation of the Impact of Using Measured Weather Data versus TMY Weather Data in A DOE-2 Simulation ff An Existing Building in Central Texas,” ESL Report No. ESL-TR-93/09-02, College Station, TX.
15.
Manke, J. M., Hittle, D. C., and Hancock, C. E., 1996, “Calibrating Building Energy Analysis Models Using Short Term Test Data,” Proceedings of the 1996 International ASME Solar Energy Conference, pp. 369–378, San Antonio, TX.
16.
Knebel, D. E., 1983, “Simplified Energy Analysis Using the Modified Bin Method,” American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc., Atlanta, Georgia.
17.
Kusuda
,
T.
,
1981
, “
A Comparison of Energy Calculation Procedures
,”
ASHRAE J.
,
23
(
8
), pp.
21
24
.
18.
Brotherton
,
T.
,
Kreider
,
J. F.
,
Claridge
,
D. E.
, and
Norford
,
L. K.
,
1987
, “
A Multi-climate Comparison of the Simplified ASHRAE Building Consumption Model with DOE-2 Results
,”
ASHRAE Trans.
,
93
, Pt.(
2
), pp.
600
620
.
19.
Vadon
,
M.
,
Kreider
,
J. F.
, and
Norford
,
L. K.
,
1991
, “
Improvement of the Solar Calculations in the Modified Bin Method
,”
ASHRAE Trans.
,
97
, Pt.(
2
), pp.
204
211
.
20.
Claridge
,
D. E.
,
Norford
,
L. K.
, and
Balasubramanya
,
R.
,
1992
, “
A Thermal Mass Treatment for the TC 4.7 Simplified Energy Analysis Procedure
,”
ASHRAE Trans.
,
98
, Pt.(
1
), pp.
320
327
.
21.
Balasubramanya
,
R.
,
Claridge
,
D. E.
,
Norford
,
L. K.
, and
Kreider
,
J. F.
,
1992
, “
A Multi-climate Comparison of the TC 4.7 Simplified Energy Analysis Procedure Using Improved Treatment of Mass and Solar Gains with DOE-2 Results and the Original SEAP
,”
ASHRAE Trans.
,
98
, Pt.(
1
), pp.
305
319
.
22.
Katipamula
,
S.
, and
Claridge
,
D. E.
,
1993
, “
Use of Simplified Models to Measure Retrofit Energy Savings
,”
ASME J. Sol. Energy Eng.
,
15
, pp.
77
84
.
23.
Liu, M., and Claridge, D. E., 1995, “Application of Calibrated HVAC System Models to Identify Component Malfunctions and Optimize the Operation and Control Schedules,” Proceedings of Solar Energy Engineering, 1995 ASME/JSME/JSES International Solar Energy Conference, Maui, Hawaii.
24.
Liu
,
M.
, and
Claridge
,
D. E.
,
1998
, “
Use of Calibrated HVAC Models to Optimize System Operation
,”
ASME J. Sol. Energy Eng.
,
120
, pp.
131
138
.
25.
Wei, G., Liu, M., and Claridge, D. E., 1998, “Signatures of Heating and Cooling Energy Consumption for Typical AHUs,” The Eleventh Symposium on Improving Building Systems in Hot and Humid Climates Proceedings, Fort Worth, Texas, pp. 387–402.
26.
Wilkins
,
C. K.
,
1998
, “
Electronic Equipment Heat Gains in Buildings
,”
ASHRAE Trans.
,
104
, Pt.(
1B
), pp.
1784
1789
.
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