Article | Proceedings of the 12th International Modelica Conference, Prague, Czech Republic, May 15-17, 2017 | Modelling of Heat Pumps with Calibrated Parameters Based on Manufacturer Data
Göm menyn

Title:
Modelling of Heat Pumps with Calibrated Parameters Based on Manufacturer Data
Author:
Massimo Cimmino: Department of Mechanical Engineering, Polytechnique Montreal, Montreal QC, Canada, Michael Wetter: Lawrence Berkeley National Laboratory, Energy Technologies Area, Building Technology and Urban Systems Division, Simulation Research Group, Berkeley CA, USA
DOI:
10.3384/ecp17132219
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Full text (pdf)
Year:
2017
Conference:
Proceedings of the 12th International Modelica Conference, Prague, Czech Republic, May 15-17, 2017
Issue:
132
Article no.:
022
Pages:
219-226
No. of pages:
8
Publication type:
Abstract and Fulltext
Published:
2017-07-04
ISBN:
978-91-7685-575-1
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press, Linköpings universitet


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A Modelica model for the simulation of heat pumps is presented. The model uses a simplified vapor compression cycle with only five refrigerant states. Parameters to the model are evaluated using an optimization procedure to minimize the differences between the model predicted heating capacities and power input and those provided in the manufacturer technical data. The optimization process is done from a Python implementation of the heat pump model. The model is first tested by verifying that calibration from performance data generated by the heat pump model results in the same parameters as the ones used in the generation of the performance data. In the presented example, calibrated parameters were found close to the original parameters used to generate the data, except for the evaporator heat transfer coefficient for which the model was found not to be very sensitive. In a second example, the model is calibrated against manufacturer data. The heating capacities and power input calculated from the calibrated model are within 2.7% and 4.7% of the manufacturer data, respectively. Finally, the computational performance of the model is tested in a system simulation of a hydronic heating system. The simulation using the presented heat pump model was executed in 152 seconds, compared to 140 seconds for the same system using a simple boiler model.

Keywords: Heat pump Vapor compression cycle Model calibration

Proceedings of the 12th International Modelica Conference, Prague, Czech Republic, May 15-17, 2017

Author:
Massimo Cimmino, Michael Wetter
Title:
Modelling of Heat Pumps with Calibrated Parameters Based on Manufacturer Data
DOI:
http://dx.doi.org/10.3384/ecp17132219
References:
No references available

Proceedings of the 12th International Modelica Conference, Prague, Czech Republic, May 15-17, 2017

Author:
Massimo Cimmino, Michael Wetter
Title:
Modelling of Heat Pumps with Calibrated Parameters Based on Manufacturer Data
DOI:
http://dx.doi.org/10.3384/ecp17132219
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Last updated: 2017-02-21