It is then run back through the heat exchanger to drive the steam turbine when needed.

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The Zurich laboratory has already constructed a prototype that feeds the water from the chips into a heat-exchanger.

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The recipient of the LRs could go to another unregulated currency exchanger and convert the LRs back into dollars.

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The next stage is to link this exchanger to a district-heating system so that it can be pumped into central heating.

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The storage system, called SolarPLUS, uses a heat exchanger to transfer some of the heat captured by the heliostats to the molten salt.

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The pre-cooler, also known as the heat exchanger, is made up of a huge number of tubes that use compressed helium to cool the air around it.

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The front half of the car is brutally ventilated with multiple air scoops to feed the ravenous supercharger and to cool the engine, brakes and transmission heat exchanger.

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The cost and time of prototyping new designs, from a new turbine blade to a new solar panel mounting bracket or an intricately designed heat exchanger, could drop dramatically.

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At Mach 4 or 5, the air flow would become dangerously hot but this heat exchanger - consisting of a dense and closely-guarded bundle of tiny tubes - would chill things down to a manageable temperature in milliseconds.

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