MAGNETIC REFRIGERATION technology - Printable Version +- Free Academic Seminars And Projects Reports (https://easyreport.in) +-- Forum: Seminars Topics And Discussions (https://easyreport.in/forumdisplay.php?fid=30) +--- Forum: Miscellaneous Seminars Topics (https://easyreport.in/forumdisplay.php?fid=21) +---- Forum: General Seminar Topics (https://easyreport.in/forumdisplay.php?fid=58) +---- Thread: MAGNETIC REFRIGERATION technology (/showthread.php?tid=3504) |
MAGNETIC REFRIGERATION technology - shojan - 08-16-2017 MAGNETIC REFRIGERATION [attachment=16436] Introduction to Refrigeration Refrigeration is the process of removing heat from an enclosed space or from a substance and moving it to a place where it is unobjectionable The primary purpose of refrigeration is lowering the temperature of the enclosed space or substance and then maintaining that lower temperature. Principle of Magnetic Refrigeration -Magneto calorific effect is the basic principle on which the cooling(Magnetic refrigeration) is achieved. - The Magneto caloric effect (MCE, from magnet and calorie) is a magneto-thermodynamic phenomenon in which a reversible change in temperature of a suitable material is caused by exposing the material to a changing magnetic field -This is also known as adiabatic demagnetization by low temperature physicists, due to the application of the process specifically to affect a temperature drop. Adiabatic Magnetization -The substance is placed in an insulated environment and magnetic field is applied. - The increasing external magnetic field (+H) -causes the magnetic dipoles of the atoms to align. -As a result material s magnetic entropy and heat capacity decreases. - The net result is that the item heats up (T + Tad). |