Design aspect of Solar panel operated ventilation system or Airconditioner for avoiding Heat-stroke in Car using

 

Heatstroke-

 Heatstroke (or sunstroke) is a heat illness defined as a body temperature of greater than 40.6 °c (105.1 °F) due to environmental heat exposure with lack of thermoregulation.

It happens due to lack of water in body so that body temperature becomes more than the 40.6⁰c.

Fact and Causes of Heatstroke-

When car is parked in 25°C ambient condition under normal sunlight and car inside temperature is 22°C, within 15 minute the inside temperature rises to 48°C even when window is partially open.

This is due to greenhouse effect of interior of Car. The glasses passes the visible light(sun light) but does not allow to IR radiation(heat waves) to come out. Due to which temperature increases very fast inside the car.

The human body wants to stay at 98.6 degrees F(37⁰ C). The only way to stay at 98.6 is to sweat. By putting moisture on the skin and letting it evaporate, our body can cool itself very effectively and keep its temperature in the proper range.

At 48-50 ⁰C the rate of sweating becomes very much so human body needs lots of water. Due to unavailability of water body temperature increases very fast and leads to heat stroke.

Effect of heatstroke-

Sometimes parents leaves their child in the car and goes for shopping or other purposes. The heatstroke in car leads to death of the child inside. Many cases have been reported in this regard.

Due to high temperature of the car seat and inside air, if the persons comes to drive the car, he has to run the A. C. at very high cooling rate for few minute which leads to more fuel consumption.

Also sometimes, Car driver stays inside the car and run the car engine to cool it, which leads to much more fuel consumption.

Following are few designs-

Design-1

Targeted for lower end customer and less stylish design-

·         A solar vehicle ventilator also called solar car vent or solar car fan

·         Sun's energy converted  into the low-voltage electricity required to drive a small fan

·         The fan blows stale, hot air out of your vehicle and draws fresher air in.

Features -

1) Auto cool solar powered car fan

2) Auto cool is the revolutionary solar powered ventilation system to keep it up to 30 C cooler than it would normally be

(3) Being compact, it fits in any car window and does not need batteries

Specification -

 Colour: Same as car

 Item size: 14.5x 11 x 6cm

 Solar panel size: 10x7 cm

 Cost: $ 10

 Package item: 342 g

Design-2

Design for upper end customer and good looking design

•      Solar panel on the top of CAR will be placed.

•      Can give enough power to run a fan for good Ventilation

•      With use of high efficiency panel Air-condition Also can be run.

·         Area available= 3m²

·         Power available by panel= 3*150= 450 W_p

·         Panel cost(for m-c Si )= 23,000 INR

·         Ventilation system cost= 5,000 INR

·         Installation cost= 4,000 INR

·         Total cost= 32,000 INR

·         Can maintain temperature near to the ambient condition

Design-3

Design for long cars and more cooling requirement design

• Foldable panel design
• Can give large area to absorb irradiance
• Air-conditioning system can be used  cool the car
• Panel will give continuously energy at low power, it will be stored in the battery, battery will give power to charge super-capacitor at low power for more time. To run AC Super-capacitor will give high power for short time.

• On long Car available total area available is= 7 m²
• So panel can be give power= 7x150= 1050 W_p

•      This Panel will cost= 50,000 INR

•      Super capacitor cost= 10,000 INR

•      BLDC motor cost= 3,000 INR

•      Installation cost= 5,000 INR

• Total cost= 68,000INR
• Can maintain temperature ~ 22⁰C

Prototype design result-

we designed a solar panel driven Thermo- electric based cooler in a closed box of around 1ft x1ft x 0.5 ft and measured the test data as follwing. 

Conclusion-

•      This is good idea to solve current problems of sunstroke in Cars by using solar power.

•      By using this idea we can able to reduce AC operating cost. 

•      It will reduces fuel consumption so it will cut carbon footprint.