Share

Modeling and simulation of the impact of soft faults in a reversible air-to-water propane heat pump.

Number: 2218

Author(s) : LLOPIS-MENGUAL B., NAVARRO-PERIS E., BARCELÓ RUESCAS F., CORBERÁN J. M.

Summary

Heat pumps can be affected by faults that are not easily perceived (soft faults) but could increase their energy consumption and move to more severe ones affecting the reliability of the system. The development of fault detection and diagnosis techniques with an experimental approach requires a huge amount of costly and time-consuming data. The analysis of them sometimes is mixed with coupling effects that make the fault identification in real conditions difficult. This work evaluates the influence of some of the most common sources of soft faults (charge, leaks, coil obstruction), including their cross effect. In order to do that, an air-to-water heat pump of 10 kW using propane as refrigerant has been tested, and based on the experimental campaign, a detailed model of it has been built. Finally, the model has been used to evaluate the effect of the different faults in cooling and heating mode, their cross effects on the heat pump performance, and their relative impact on the different system parameters. This constitutes the first step to developing virtual sensors for these kinds of errors which, in the case of using flammable refrigerants, could
significantly reduce the cost of the system.

Available documents

Format PDF

Pages: 10 p.

Available

Free

Download

Details

  • Original title: Modeling and simulation of the impact of soft faults in a reversible air-to-water propane heat pump.
  • Record ID : 30030612
  • Languages: English
  • Subject: Technology
  • Source: 2022 Purdue Conferences. 19th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2022

Links


See other articles from the proceedings (224)
See the conference proceedings

Indexing