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krishan arora
 India
Heat transfer from vehicle engines Printer Friendly Version
Harnessing the Waste Heat Energy of the Vehicle Engines
A very large part of the fuel energy that is consumed by the vehicle engines (and other combustion engines) is wasted in the form of heat which has to be removed perforce by forced cooling.
It should be possible to use this heat energy, instead of wasting it, in several innovative ways to add value to the vehicle and increase the overall fuel efficiency of the vehicles by taking over some of the functions which presently need to draw additional power from the engines.
A few examples are:
-A heat transfer liquid filled coil could draw away the waste heat from the engine and transfer it for warming up the interiors, and the wind/rear screens of the vehicles in winters/cold weather.
-The heat transfer system could be used to warm up snacks/food being carried for the journey.
-The heat transfer system could also be used to boil water, with probably some incremental heating, either for sterilizing the drinking water or for providing a hot cup of tea or coffee during the journey.
-The heat transfer system could be used to vaporize a low boiling point liquid and run a gas turbine, akin to the systems being used in the Ocean Thermal Energy Conversion method of energy generation. The power so produced could be used to run electric motors to drive the vehicles, thereby saving on fuel consumption. This of course would be possible only in fuel/electric hybrid vehicles. In other vehicles this power could be used for battery charging, heating/cooling of the vehicles, or for any other applications needing electric power.
-The waste heat energy from the engines could also be used as the main heat source for a mini Vapor Evaporative Cooling System to provide for air conditioning the vehicles. This may need a small supplemental heating up of the working fluid to achieve the minimum working temperature but the system would subsequently provide a much larger fuel savings by allowing for smaller engines to be used in the vehicles.
Reward: No reward wanted. In fact I may be able to offer several other ideas for those wanting to make use of the above ideas.
 

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51°

   
 USA
Electronics That Would Need No Charge Printer Friendly Version
The key to chargeless electronics is to have super conductors that allow electrons flow freely without collision or inhibition. The current problem is that these super conductors are not congenial to room temperature. If I recall right, the current super conductors can remain super until temperatures of about 168 degrees, while room temperature is about 273 degrees. But the thing is as soon as we can come up with super conducts that work in room temperature, there will be no need to charge up batteries since electrons will not collide, and charge won't be lost through heat.
Researchers are still working on this but I am now going to study physics with this being one of my main projects and objectives. It will revolutionize the world and end our energy dependence. Let me know your thoughts pls.
Reward: partaking in any projects relating to this.
 

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49°

   
babytazha
 USA
Mobile Residential Temperature Control Printer Friendly Version
Have you ever been in bed in the middle of the night and didn't want to get up to turn on the thermostat (heater/ac) in order to maintain a comfortable temperature in the bedroom so that you can have a peaceful night's sleep? Well, with the invention of the mobile thermostat, you will never encounter this dilemma again.
This device is a remote control to the main thermostat in the house that emits an electronic signal to the (main) thermostat basically to control the temperature as recorded by multiple temperature monitors throughout the house that just report the current temperature in each room by sending a signal that identifies the location of that particular monitor and the current temperature in the room. Since most thermostats aren't located in the bedroom and are moreso designed to control temperatures in common areas, my idea is to have electronic vents (also controlled by the remote) that you can open and close at the push of a button. This way, you can warm up the bathroom in the winter without getting up from your bed until it has reached your desired level of comfort.
In addition to electronic vents, you will also need temperature monitors that communicate with the remote and alert you when the desired area has reached the target temperature.
Thus, you will be able to heat and cool one room at a time at your leisure without having to do more than push a button. Also, this will do wonders for energy saving and keeping those energy bills under control.
Reward: Recognition and to own the original prototype.
 

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45°

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