Heat Pump Air Conditioning Systems for Optimized Energy Demand of Electric Vehicles

Rabl, Benedikt

doi:10.1007/978-3-319-57445-5_6

Cited by 4 publications

(1 citation statement)

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“…20 Heat pumps use a conventional A/C system with an additional heat exchanger and expansion valve 27,29 and can lower HVAC energy consumption by 38.9% (averaged from Peng and Du, 20 Lajunen 21 and Rabl 29 ). However, they have low system efficiency 20 ; challenging and complex control systems 21 ; cannot provide instantaneous heat transfer 29 ; are considered ineffective in cold climates 20,21,25–27,30 ; and use refrigerants which have environmental concerns and legislative restrictions. 20 Cabin air recirculation is also used by some manufacturers to reduce HVAC energy consumption.…”

Section: Introductionmentioning

confidence: 99%

Investigating the potential energy savings of MVHR in automotive HVAC systems

Champion

Allen

Wigston³

2022

Proceedings of the Institution of Mechanical Engineers, Part D:

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The environmental impact of ICEVs (internal combustion engine vehicles) have led to increasing numbers of EVs (electric vehicles) and plug-in hybrid vehicles being developed. However, current HVAC (heating, ventilation and air conditioning) systems can heavily impact energy consumption, reducing EV range. MVHR (mechanical ventilation with heat recovery) is an approach to minimise the HVAC energy consumption currently used in buildings to meet the Passivhaus building standard and can be used for both heating and cooling. In this work a MATLAB Simulink model and a road load model are used to quantify potential energy reduction and corresponding range savings from an automotive MVHR HVAC system. The model is calibrated against data from the industry sponsor for a baseline non-MVHR vehicle. The results show a 74.3%–94.9% HVAC energy consumption and corresponding range savings of a mean average of 8.8%–11.0% range savings over the baseline case without MVHR, and a corresponding 0.5%–2.5% range increase over the industry sponsor’s vehicle’s range under certification conditions. The work concludes that the application of MVHR technology to automotive cases is beneficial.

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