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Optimisation of the defroster ducts and windshield electric resistances of a city bus with CFD analysis

Unverdi, Salih Ozen; Eren, Hayri; Erdem, Vadi; Sonmez, Nilgun; Emre, Alper; Bayraktar, Volkan


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        "name": "Unverdi, Salih Ozen"
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        "name": "Eren, Hayri"
      }, 
      {
        "affiliation": "TEMSA Global Res Dev & Technol Co, TUBITAK MAM Technol Free Zone, TR-41470 Gebze, Kocaeli, Turkey", 
        "name": "Erdem, Vadi"
      }, 
      {
        "affiliation": "TEMSA Global Res Dev & Technol Co, TUBITAK MAM Technol Free Zone, TR-41470 Gebze, Kocaeli, Turkey", 
        "name": "Sonmez, Nilgun"
      }, 
      {
        "affiliation": "TEMSA Global Res Dev & Technol Co, TUBITAK MAM Technol Free Zone, TR-41470 Gebze, Kocaeli, Turkey", 
        "name": "Emre, Alper"
      }, 
      {
        "affiliation": "TEMSA Global Res Dev & Technol Co, TUBITAK MAM Technol Free Zone, TR-41470 Gebze, Kocaeli, Turkey", 
        "name": "Bayraktar, Volkan"
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    "description": "The windshield and side windows defrosting system performance of a city bus is improved with CFD analysis. The air flow rate is increased by reducing the pressure droll in the air inlet and outlet ducts. The air flow is evenly distributed among the vents by optimising the Shape of the outlet duct. The heat transfer rate to the windshield is increased by adjusting the width of the vents and defrosting time is decreased by orienting the vents. The air speeds measured near the windshield increased by 350%. Defrosting 95% of the Area A on file windshield within 40 minutes, at Q-80 thermal conditions, is accomplished. But de-icing 80%, of the Area B, in front of the driver, within 20 Minutes cannot be fulfilled, because the defrost-box heat power is insufficient. To speed all de-icing, electric resistance wires are used as additional heat source. Air flow inside a defrost-box is analysed.", 
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      "issue": "1-4", 
      "pages": "199-221", 
      "title": "INTERNATIONAL JOURNAL OF VEHICLE DESIGN", 
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    "title": "Optimisation of the defroster ducts and windshield electric resistances of a city bus with CFD analysis"
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