3-7 July 2017
Africa/Johannesburg timezone

Performance Evaluation and Optimization of an Air Source Heat Pump Water Heater at Low Temperatures

4 Jul 2017, 17:10
1h 50m
3rd and 4th floor passages (Engineering Building 51)

3rd and 4th floor passages

Engineering Building 51

Board: 61
Poster Presentation Track F - Applied Physics Poster Session 1

Speaker

Mr Joel YONGOUA NANA (Fort Hare Institute of Technology)

Description

Residential air source heat pump (ASHP) water heaters can operate at a coefficient of performance (COP) between 2-4 under standard outdoor conditions. In winter usually at outdoor temperatures below 5°C when their heating function is mostly needed, they tend to under-perform with COP usually close to 1. However, residential ASHP water heaters still offer room for further optimization in a bid to achieve a higher operation efficiency even at low temperatures from an energy management perspective. In this work, we critically analyze the performance of a residential split-type ASHP water heater during winter at ambient temperatures below 5°C (typical of South African climate during winter). The thermodynamic performance parameters and compressor energy consumption are modeled using multiple linear regression models. These models are then simulated in MATLAB incorporating an intelligent control algorithm designed to boost the COP at low ambient temperatures.

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD, N/A)?

MSc

Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?

Yes

Main supervisor (name and email)<br>and his / her institution

Michael Simon
msimon@ufh.ac.za
Fort Hare Institute of Technology

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

Yes

Primary author

Mr Joel YONGOUA NANA (Fort Hare Institute of Technology)

Co-authors

Dr Michael Simon (FHIT) Mr Stephen Loh Tangwe (Fort Hare Institute of Technology, University of Fort Hare)

Presentation Materials

There are no materials yet.