If you are blocked at one level, look for other ways. They exist, and sometimes offer an even better solution.
While trying to invent a new type of air-conditioner, we find ourselves blocked to use the ‘heat exchange effect’ for some reason (patent restriction, cost etc). Does that mean that I cannot proceed with inventing an air-conditioner? No. Heat exchange is just one method of cooling. I must think of other ways to achieve cooling-
- Some other methods of achieving cooling are – Dufour effect, Joule Thomson effect, rarefaction, thermo-acoustics. Which of these can I use?
- In 2010, nanotechnology nano-structure coatings were discovered that to make heat transfer far more efficient. To do this, heat transfer surfaces are coated with a nano-structured application of zinc oxide, which in this usage develops a multi-textured surface that looks almost like flowers, and has extra shapes and capillary forces that encourage bubble formation and rapid, efficient replenishment of active boiling sites. Can this new technology be used somehow?
- How does nature cool/heat things? The wood pecker manages chiselling impacts thanks to its curved body shape that acts as a bracing spring. Wood ants heat their nests using collective body heat. Termite mounds exist in temperatures ranging between 35 deg F and 104 deg F, but keep inside temperature steady at 87 deg F through use of hooded windows, variable thickness walls and light paints to absorb heat. Can we use this knowledge?