28-06-2012, 01:12 PM
CRYOCAR
CRYOCAR.pptx (Size: 1.17 MB / Downloads: 84)
Introduction:
The importance of automotives is increasing day by day especially in the field of cars. There are various factors that influence the choice of the car which include performance, fuel, pollution etc.
As the prices for fuels are increasing and the availability is decreasing we have to go for alternative choice.
At this point of view we have “CRYOCARS” as an alternative choice.
These cryocars uses cryogens as fuel.
Cryogen is nothing but a liquid, such as liquid nitrogen, that boils at a temperature below about 110 K (-160°C) and is used to obtain very low temperatures.
Uses liquid nitrogen as working fluid and hence it is also called as liquid nitrogen powered vehicle.
Why Liquid Nitrogen?
Liquid nitrogen is the liquefied form of the element “nitrogen” that is commercially produced by fractional distillation of liquid air.
Liquid Nitrogen is the cheapest, widely produced and most common cryogen.
It is mass produced in air liquefaction plants.
At normal pressure, liquid nitrogen boils at 77 K (−195.8°C or −320.4°F).
Easy to Liquefy.
Liquefaction of gases is physical conversion of a gas into a liquid state.
The conversion of Nitrogen gas to Liquid Nitrogen is done by the process of Fractional Distillation.
This process consists of two steps, the first relies on cooling the air to a very low temperature (i.e. converting it into a liquid), the second involves heating it up thus allowing each gas within the mixture to evaporate at its own boiling point.
Working Principle:
LN2 is pressurized and then vaporized in a heat exchanger by ambient temperature of the surrounding air.
This heat exchanger just like the radiator of a car.
Liquid N2 passing through the primary heat exchanger quickly reaches its boiling point as it gets vaporized at room temperature.
The pressurized N2 gas drives the motor with the help of an Expander.
The only exhaust is nitrogen, which is major constituent of our atmosphere.
CRYOCAR.pptx (Size: 1.17 MB / Downloads: 84)
Introduction:
The importance of automotives is increasing day by day especially in the field of cars. There are various factors that influence the choice of the car which include performance, fuel, pollution etc.
As the prices for fuels are increasing and the availability is decreasing we have to go for alternative choice.
At this point of view we have “CRYOCARS” as an alternative choice.
These cryocars uses cryogens as fuel.
Cryogen is nothing but a liquid, such as liquid nitrogen, that boils at a temperature below about 110 K (-160°C) and is used to obtain very low temperatures.
Uses liquid nitrogen as working fluid and hence it is also called as liquid nitrogen powered vehicle.
Why Liquid Nitrogen?
Liquid nitrogen is the liquefied form of the element “nitrogen” that is commercially produced by fractional distillation of liquid air.
Liquid Nitrogen is the cheapest, widely produced and most common cryogen.
It is mass produced in air liquefaction plants.
At normal pressure, liquid nitrogen boils at 77 K (−195.8°C or −320.4°F).
Easy to Liquefy.
Liquefaction of gases is physical conversion of a gas into a liquid state.
The conversion of Nitrogen gas to Liquid Nitrogen is done by the process of Fractional Distillation.
This process consists of two steps, the first relies on cooling the air to a very low temperature (i.e. converting it into a liquid), the second involves heating it up thus allowing each gas within the mixture to evaporate at its own boiling point.
Working Principle:
LN2 is pressurized and then vaporized in a heat exchanger by ambient temperature of the surrounding air.
This heat exchanger just like the radiator of a car.
Liquid N2 passing through the primary heat exchanger quickly reaches its boiling point as it gets vaporized at room temperature.
The pressurized N2 gas drives the motor with the help of an Expander.
The only exhaust is nitrogen, which is major constituent of our atmosphere.