Hello.
       This is my second post regarding my design process research till 17.04.2016.This a part of  Desk research.
The following attached pictures consists of my study on
                                                    -The cheapest available air conditioners and coolers on online market place for approximation of my final solution cost.
                                                    -The average energy consumption of air conditioners and coolers for knowing the recurring costs of the respective devices.
                                                    -Basic study of working mechanism of air conditioners and coolers to see if any of those can be borrowed for my solution.
                                                    -Comparison of air conditioners and coolers for knowing the needs that my solution must fulfill.

THIS LAST PICTURE SHOWS THE NEEDS WHICH I NEED TO FULFILL(Marked with a star in air cooler section and those marked with tick should remain unchanged.)

                                                                                                             THANK YOU.