Renewable Energies
A prototype of the HCPVT is currently being tested at the IBM Research lab in Zurich, Switzerland. Several prototypes of the HCPVT system will be built up in Biasca and Rüschlikon, Switzerland as part of this collaboration.
The prototype HCPVT system underdevelopment uses a large parabolic dish, made from a multitude of mirror facets, which is attached to a tracking system that determines the best angle based on the position of the sun. Once aligned, the sun’s rays reflect off the mirror onto several microchannel-liquid cooled receivers with triple junction photovoltaic chips -- each 1x1 centimeter chip can convert 200-250 watts, on average, over a typical eight hour day in a sunny region. The entire receiver combines hundreds of chips and provides 25 kilowatts of electrical power. The photovoltaic chips are mounted on microstructured layers that pipe liquid coolants within a few tens of micrometers off the chip to absorb the heat and draw it away 10 times more effective than with passive air cooling. © IBM Research
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