The heart of an electric car is its rechargeable battery pack, which supplies the electric motor ... more The heart of an electric car is its rechargeable battery pack, which supplies the electric motor with the energy to move the vehicle. When parked in the sun, the soak air temperature inside a passenger compartment can rise up to 60°C. Reducing the air temperature inside the passenger compartment is very important not only for passenger comfort but also to reduce the power consumed by the air-conditioning (AC) system. This leads to saving in the battery power. This paper presents the use of mechanical ventilator to lowering the air temperature inside the passenger compartment during parking in a sunny day condition. The commercial software FLUENT 6.3 is used to simulate threedimensional (3-D) air temperature distributions and air flow field inside the passenger compartment. The simulated result without mechanical ventilator is compared with the experimental data. They show a good agreement with average deviation of 1.8°C in general. This study found that the number of mechanical ventilator has a weak influence on the air temperature inside the passenger compartment when they are installed on the rear dashboard.
The heart of an electric car is its rechargeable battery pack, which supplies the electric motor ... more The heart of an electric car is its rechargeable battery pack, which supplies the electric motor with the energy to move the vehicle. When parked in the sun, the soak air temperature inside a passenger compartment can rise up to 60°C. Reducing the air temperature inside the passenger compartment is very important not only for passenger comfort but also to reduce the power consumed by the air-conditioning (AC) system. This leads to saving in the battery power. This paper presents the use of mechanical ventilator to lowering the air temperature inside the passenger compartment during parking in a sunny day condition. The commercial software FLUENT 6.3 is used to simulate threedimensional (3-D) air temperature distributions and air flow field inside the passenger compartment. The simulated result without mechanical ventilator is compared with the experimental data. They show a good agreement with average deviation of 1.8°C in general. This study found that the number of mechanical ventilator has a weak influence on the air temperature inside the passenger compartment when they are installed on the rear dashboard.
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