201 Study on Enhancement of Heat Transfer in a Fluid Layer Heated from Above
Details
Driving device for heat transfer enhancement in a fluid layer heated from above was developed. The device was composed of a coil spring made of shape memory alloy and a closed vessel that is flexible in axial direction. It shrinks and sinks under water when it is hot, and it expands and floats on water when it is cold. Therefore, the device was named "Negative Thermal Expansion Capsular Object" shortly NTE capsule. Its performance was proved experimentally. The way to design the device is dressed and its potentiality is discussed.
