Page 302 - AWSAR 2.0

278 || AWSAR Awarded Popular Science Stories - 2019
Ways to Become Cooler and More Stable – An Efficient Flow Boiling Heat Transfer Through Microchannel
Mr. Gaurav Hedau*
Email: gauravhedau89@gmail.com
Today, the electronic devices dominated the modern world, owning a personal computer is very common. As compared to computers in old times around the 1950s, the present size of personal computers has drastically reduced and speed increased by many folds. This happened due to the advent of integrated circuits during the digital revolution period, which miniaturizes the electronic component like transistor, resistors and other electronic components and integrated onto one small chip on circuit board. The motherboard in computers is the main printed circuit board where lies the brain of the computer called microprocessor (or simply processor) and all the calculations and tasks take place. The processors accommodate many transistors, which store and move data (to do calculations)
at very high speed. According to Moore’s law, the number of transistors per square inch of processor had doubled every two years. In the present time, processors accommodate around billions of transistors as compared to ‘Intel 4004’ processor with 2250 transistors back in the year 1971. This increase in transistor densities in the processor increases the speed of computations but on the other hand, it leads to a high rate of heat generation. For proper working of the processor, the generated heat should be dissipated so that the processor runs under a safe temperature limit efficiently, which increases the durability of components.
In personal computers, the heat generated by the processor is low which can be dissipated through air cooling by attaching aluminum block having large surface area along with fans
* Mr. Gaurav Hedau, PhD Scholar from Indian Institute of Technology, Bombay, is pursuing his research on “Heat Transfer Enhancement by two Phase Boiling in Nanostructured Microchannel”. His popular science story entitled “Ways to Become Cooler and More Stable- An Efficient Flow Boiling Heat Transfer Through Microchannel” has been selected for AWSAR Award.