Seite - 352 - in Emerging Technologies for Electric and Hybrid Vehicles
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Energies 2016,9, 240
Figure7.Airconditioningsystemstructureandoperationforelectricvehicles [47].
With the twoheat exchangers in the interiorunit, the systemcouldnot onlyprovide cooling,
heatinganddemisting/dehumidifying,butalsoensuresafedrivingwhentheoperationmodewas
switched fromcooling toheating. Subsequently, Xie andMin et al. measured theperformanceof
this representativeheatpumpACsystem[64,65]. In [66], an internalheatexchangerwas installed in
anautomobileACsystemto improvesystemperformance. In [67,68],asuction lineheatexchanger
was added to a car AC system. The results showed that both the capacity and the COP could
be improved by up to 25%, while the compressor discharge temperatures were also increased.
Furthermore,Ahn et al. [69] comparedtheperformanceof theAC,heatpumpanddual-evaporator
heat pump systems, whichwere all combinedwith a heater. The experimental results showed
that the dual-evaporator heat pump system as shown in Figure 8, had a superior performance
in the dehumidifying andheating operation comparedwith the other two systems. The specific
moistureextractionrateandCOPof thedual-evaporatorheatpumpsystemwere53%and62%higher,
respectively, than thoseof theheat pumpsystemat the indoor airwet bulb temperature of 13 ˝C.
Moreover, the specificmoisture extraction rate andCOPof theheatpumpsystemwere154%and
180%higher, respectively, thantheACsystemat the indoorairwetbulb temperatureof15˝C.
ȱ
Figure8.Schematicdiagramof thedual-evaporatorheatpumpsystemforelectricvehicles [69].
352
Emerging Technologies for Electric and Hybrid Vehicles
- Titel
- Emerging Technologies for Electric and Hybrid Vehicles
- Herausgeber
- MDPI
- Ort
- Basel
- Datum
- 2017
- Sprache
- englisch
- Lizenz
- CC BY-NC-ND 4.0
- ISBN
- 978-3-03897-191-7
- Abmessungen
- 17.0 x 24.4 cm
- Seiten
- 376
- Schlagwörter
- electric vehicle, plug-in hybrid electric vehicle (PHEV), energy sources, energy management strategy, energy-storage system, charging technologies, control algorithms, battery, operating scenario, wireless power transfer (WPT)
- Kategorie
- Technik