Convert Lb To Kg

DOE supports next phase to recapture wasted energy from automotive exhaust

Nowhere is the potential greater to recover and convert this waste heat into electricity than hybrid vehicles, which are both IC engine and electric.

Think further of the stop-start systems. The engine literally shuts off but still needs electrical power for components like radiator, lights, air conditioner, not to mention all those new auto-tech gadgets.

Enter the science of thermoelectricity and devices like thermoelectric semiconductors (TE). These are solid-state devices that heat and chill, for example, luxury car seats. However, unlike the car-seat heater/chiller application, which feeds electricity to TE materials to induce them to be hot or cold, the idea behind a TE generator is to run the temperature-sensitive substance in reverse. By subjecting the device to waste heat, it can produce electricity.

In other words, wherever there is a heat gradient, such as between exhaust gas and engine coolant, there is the potential to induce a voltage; and that’s where these TE devices come in: they become electrical generators from heat.

This phenomena has not been lost on the U.S. Department of Energy (DOE) which has prompted a program to help fund researchers at General Motors Company (NYSE: GM), Ford Motor Company (NYSE: F), and BMW to find out if the materials could recapture energy that is lost in engine exhaust by turning waste heat into electricity.

One proposed solution from the Automotive Waste Heat Conversion to Power Program - 2010 Vehicle Technologies Program Annual Merit Review : Arrange the TE engines around a tube through which the exhaust gas passes. Use rings that are electrically isolated from the tube but thermally conductive as the hot side substrates.

Until now, the low conversion efficiencies versus the high costs of existing TE materials have kept such an application from becoming a commercial reality. If successful, though, significant fuel savings would be realized; a win for all.

Having worked in auto design and engineering, I affirm this is not a new consideration. The auto industry has long wondered how their vehicles might squeeze out even a few percent more useful energy from gasoline and diesel, but nothing practical ever seemed to emerge.

So, it’s great news to see things have changed, as GM engineers are now testing a prototype thermoelectric exhaust-heat energy-recovery device on a Chevy Suburban. In Phase 5 of the DOE program, TEG systems were scheduled to be integrated into the exhaust systems of BMW X6 and Ford Fusion vehicles.

What Weight Should I Be For My Height And Age | Healthylifefriend.com

This is a common question that most people ask. They want to know if the weight they have right now is ideal or not. In order to find out people usually use the body mass index or BMI calculator. I’m not too fond of the tools, so I use different method to find out what my ideal weight is…

I usually use the minus a hundred method where your height is reduced by a hundred and that’s the ideal weight for men and for women it is reduced be a hundred and ten. For example:

My height is around 180 cm, and therefore my ideal weight should be around 80 kg, if I was a women my ideal weight should be around 70 kg.

As you can see, the formula is like this: for men (height – 100) = ideal weight and for women (height -110) = ideal weight. This of course only apply for cm and kg measurement.You can convert your weight in pound to kg and feet to cm first if you want to use this method. If you want straight method for the feet and pounds then here are some fast way to calculate it:

for men (height – 3 feet) x 60 = ideal weight, for women (height – 3 feet 6 inches) x 60 = ideal weight. My height is around 5’9” and therefore my ideal weight should be around 174 pounds, if I was a women my ideal weight should be around 138 pounds. 5’9” – 3′ = 2’9” x 60 pounds = 2,9 x 60 pounds = 174 pounds.

This method is not perfect as people has different bone density, fat, and muscle. So there are chances that even though your weight is ideal according to this method, you will still not satisfied with the body weight.

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