Mathematical modeling and simulation application to visualize the performance of retrofit heat pump water heater under first hour heating rating

Stephen Tangwe, Michael Simon and Edson Meyer

Renewable Energy, 2014, vol. 72, issue C, 203-211

Abstract: Air source heat pump unlike water and geothermal source heat pumps are widely used in sanitary hot water production by virtue of the relative ease of harvesting, low grade aero-thermal energy and less complexity in operating and maintaining the heat pump unit. This research focused on performance monitoring of 1.2 kW air source heat pump, retrofitting a 200 L high pressure storage tank and operating under first hour heating rating for seven different climatic conditions. A data acquisition system was designed and built to measure the desired predictors of the power consumption and coefficient of performance of the ASHP water heater. A robust mathematical multiple linear regression models were built and were used in the modeled blocks in the simulation application developed in Simulink of MATLAB. Results indicated that the maximum coefficient of performance was associated with the maximum power consumption of the ASHP water heater. Finally, the simulation application could also be used by ASHP manufacturers and the energy saving company to quantify the energy reduced when geysers are retrofitted by ASHP. Optimization using constrained linear least squares solver in the optimization toolbox was also used to eliminate errors in the measurement from inclusion into the mathematical models.

Keywords: Air source heat pump (ASHP); Multiple linear regression; Coefficient of performance (COP); First hour heating rating (FHHR) (search for similar items in EconPapers)
Date: 2014
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148114003978
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:72:y:2014:i:c:p:203-211

DOI: 10.1016/j.renene.2014.07.011

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().