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High efficiency novel window air conditioner

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  • Bansal, Pradeep

Abstract

This paper presents the results of an experimental and analytical evaluation of measures to raise the efficiency of window air conditioners (WAC). In order to achieve a higher energy efficiency ratio (EER), the original capacity of a baseline R410A unit was reduced by replacing the original compressor with a lower capacity but higher EER compressor, while all heat exchangers and the chassis from the original unit were retained. Subsequent major modifications included – replacing the alternating current fan motor with a brushless high efficiency electronically commutated motor (ECM) motor, replacing the capillary tube with a needle valve to better control the refrigerant flow and refrigerant set points, and replacing R410A with a ‘drop-in’ lower global warming potential (GWP) binary mixture of R32/R125 (85/15% molar concentration). All these modifications resulted in significant enhancement in the EER of the baseline WAC. Further, an economic analysis of the new WAC revealed an encouraging payback period.

Suggested Citation

  • Bansal, Pradeep, 2015. "High efficiency novel window air conditioner," Applied Energy, Elsevier, vol. 156(C), pages 311-320.
    • Handle: RePEc:eee:appene:v:156:y:2015:i:c:p:311-320
    DOI: 10.1016/j.apenergy.2015.07.007
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    References listed on IDEAS

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    1. Meissner, José W. & Abadie, Marc O. & Moura, Luís M. & Mendonça, Kátia C. & Mendes, Nathan, 2014. "Performance curves of room air conditioners for building energy simulation tools," Applied Energy, Elsevier, vol. 129(C), pages 243-252.
    2. Chua, K.J. & Chou, S.K. & Yang, W.M. & Yan, J., 2013. "Achieving better energy-efficient air conditioning – A review of technologies and strategies," Applied Energy, Elsevier, vol. 104(C), pages 87-104.
    3. Zhou, Guobing & Zhang, Yufeng, 2010. "Performance of a split-type air conditioner matched with coiled adiabatic capillary tubes using HCFC22 and HC290," Applied Energy, Elsevier, vol. 87(5), pages 1522-1528, May.
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    Cited by:

    1. Jakubcionis, Mindaugas & Carlsson, Johan, 2017. "Estimation of European Union residential sector space cooling potential," Energy Policy, Elsevier, vol. 101(C), pages 225-235.
    2. Chugh, Devesh & Gluesenkamp, Kyle & Abdelaziz, Omar & Moghaddam, Saeed, 2017. "Ionic liquid-based hybrid absorption cycle for water heating, dehumidification, and cooling," Applied Energy, Elsevier, vol. 202(C), pages 746-754.
    3. Chin-Hyuk Chang & Dae-Kwon Jeong & Dae-Hyeok Kim & Hyun-Cheol Park & Jong-Ho Lee & Man-Yeong Ha & Hyun-Sik Yoon & Min-Il Kim & Seok-Beom Hong, 2023. "Effect of the Slinger Ring on the Forced Convection Heat Transfer in a Window Air Conditioner," Energies, MDPI, vol. 16(24), pages 1-18, December.
    4. López-Belchí, Alejandro & Illán-Gómez, Fernando, 2017. "Evaluation of a condenser based on mini-channels technology working with R410A and R32. Experimental data and performance estimate," Applied Energy, Elsevier, vol. 202(C), pages 112-124.

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