Browse Publications Technical Papers 2000-01-2694
2000-10-03

Effect of Solar-Reflective Glazing on Fuel Economy, Tailpipe Emissions, and Thermal Comfort 2000-01-2694

Current air-conditioning systems can reduce the fuel economy of high fuel-economy vehicles by about 50% and reduce the fuel economy of today's mid-sized vehicles by more than 20% while increasing NOx by nearly 80% and CO by 70%. Automotive glazing has a significant impact on the peak and steady-state cooling loads of the vehicle. Glazing that reflects the infrared portion of the solar spectrum can reduce interior temperatures by 9°C and reject more than 500 W while the vehicle is parked. Such a windshield can improve the fuel economy of a compact car by about 0.3 km/L (0.7 mpg) over the SC03 drive cycle if the air-conditioning system is appropriately down-sized.

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