The air conditioning (A/C) system is the largest auxiliary load in electric urban buses that operate in tropical climates. Reducing the energy consumption of the A/C system is therefore vital in reducing the energy demand from the traction battery hence improving vehicle range and in reducing the operational costs. This paper focuses on improving the refrigerant side performance by investigating a multi-stage vapour injection cycle. System modelling of the cycles was done in GT-Suite to investigate the improvement in the energy efficiency of the A/C system with multiple vapour injections in comparison to the conventional vapour compression system. The results showed an improvement in coefficient of performance (COP) enhancement of 23 %. Additional challenges of the proposed cycle are discussed to address the feasibility of implementing a multi-stage vapour injection system in urban electric buses.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Investigation of a multi stage vapour-injection cycle to improve air-conditioning system performance of electric buses


    Contributors:


    Publication date :

    2019-05-01


    Size :

    204071 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    AIR CONDITIONING SYSTEM FOR BUSES

    NAPOLI PASQUALE / DI TONNO MASSIMO / CAGLIERO STEFANO et al. | European Patent Office | 2021

    Free access

    Air-conditioning for buses

    Walls, S. | Engineering Index Backfile | 1946


    Life cycle assessment of battery electric buses

    Ager-Wick Ellingsen, Linda / Jayne Thorne, Rebecca / Wind, Julia et al. | Elsevier | 2022


    Air conditioning of automobiles and buses

    Child, L.W. | Engineering Index Backfile | 1938


    Air Conditioning of Automobiles and Buses

    Child, L. W. | SAE Technical Papers | 1938