Skip to main content

Air Conditioning


Air Conditioning was Invented by Willis Carrier





Air Conditioning is a system where the humidity and temperature in a room or a building are controlled.This system is used to maintain a cool atmosphere in warm conditions. William Haviland Carrier first developed this system for a Brooklyn based printing plant where fluctuations in heat and humidity caused the dimensions of printing paper to alter slightly. This was enough to cause a misalignment in colored inks. The new air conditioning machines maintained a stable environment  and aligned the four color printing.

He got this genius idea while waiting for a train! 


Comments

Popular posts from this blog

DOWNLOAD MECHANICAL ENGINEERING NOTES

These are the hand written notes of made easy in very neat and clean hand writing. You can read it online or you can download and print it in hard copy for reading long hours. HArd copy of Notes are recommended by many coaching teachers. These notes are prepared by Mohit Chouksey. Download it and enjoy reading. Click on the Subject Names for Downloading it Contents Thermodynamics Power Plant Engineering Internal Combustion Engine Heat Transfer Fluid Mechanics Fluid Machinery Refrigeration and Air Conditioning Engineering Mechanics Strength of Material/Mechanics of Material Machine Design Theory of Machines Material Science Casting and Welding Machining ...

MECHANICAL ENGINEERING BOOKS PDF Free Download for GATE and UPSC ESE

For the aspirants of UPSC ESE and GATE these books are very important (or must read book). For reading concepts of Thermodynamics you can read Thermodynamics An Engineering Approach by Cengel and Boles. After reading this book you will get a crystal clear concept. The Exercise questions given in exercise of this book will make your concepts strong and you can easily solve UPSC ESE Objective Questions. For UPSC Mains solve all the problems of Thermodynamics by P K Nag. This will be sufficient for Thermodynamics. For Power Plant you can refer made easy notes wchich is also provided in this website(Below is the link for the Mechanical Engineering notes). Hand Written Mechanical Engineering Notes by Mohit Chouksey Free Download--- Click Here After reading made easy notes you can prefer Power Plant by P K Nag and solve all the problems in this book. This will be sufficient for ESE and GATE. Alongwith it you have to solve previous year questions. For UPSC ESE try to solve ...

Second Law of Thermodynamics

148. Which one of the following statements is correct?  (a) A machine which violates Clausius statement will violate the first law of thermodynamics (b) A machine which violates Kelvin-Plank statement will violate the first law of thermodynamics  (c) A machine which violates the second law of thermodynamics will violate the first law of thermodynamics  (d) A machine which violates Kelvin-Plank statement will violate the Clausius statement  UPSC JWM 2017  Ans. (d)  : Kelvin Plank St atement - It is impossible for a heat engine to produced net work in a complete cycle if it exchange heat only with bodies at a single fixed temperature.   Clausius statement - It is impossible to construct an engine which operates in a cycle, transfer heat from cooler body to hotter body without any work input. A machine which violated Kelvin plank statement will violate the clausius statement....