Air source heat pumps coupled with a photovoltaic system is onefeasible technology to reduce the emissions from the building sector.These systems usually have an auxiliary heating device that is able tocover the whole heat demand on its own. Because of this, often faultsof the system go unnoticed by the user for long periods of time,decreasing the benefits of having a renewable energy electricitysource. Measuring just the solar energy yield is not sufficient, asfaults in the other parts of the system outside the solar loop caninfluence the contribution of the solar panels. Hence, it is the goalto study the overall system performance with faulty conditions in boththe photovoltaics system and the heat pump. In this paper, a detailedreview of common PV faults and detection and inspection methods isgiven in order to perform a simulation of a PV solar assisted heat pumpsystem (PV-SAHP) in study at the Catalonia Institute for EnergyResearch (IREC). The simulation model is developed with TRNSYS and thepvlib Python package. The power curves and the energy yield obtainedprovide an outline on the performance of the system when the heat pumpand the photovoltaic system are operating in faulty and non-faultyconditions. The results show the electrical energy exchange with thegrid, the self-consumed energy and how the overall system efficiency isaffected by faulty operating conditions. The economic assessment withthe NPV criteria highlights the benefits of having a defect-freephotovoltaic system.
| Identifer | oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:uu-427449 |
| Date | January 2020 |
| Creators | Orazi, Tommaso |
| Publisher | Uppsala universitet, Institutionen för samhällsbyggnad och industriell teknik, IREC |
| Source Sets | DiVA Archive at Upsalla University |
| Language | English |
| Detected Language | English |
| Type | Student thesis, info:eu-repo/semantics/bachelorThesis, text |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | MSc ET ; 20007 |
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