How to improve energy efficiency.pdf

INSTITUT INTERNATIONAL DU anisat i on int e rgo u vernement ale pour le développeme n t du f r o i d INTERNATIONAL INSTITUTE OF REFRIGERATION I n t e rgovernment anizat i on f o r t he development of refrigerat ion 177, bo ul ev ard M a les herb e s , 7 501 7 PARIS, Franc e - T e l. 33-(0) 1 4 2 2 7 3 2 35 - Fax 3 3 -(0)1 47 6 3 1 7 9 8 - E- m a il: iif ******@ii f iir. o r g - Web: Nov e mber 2003 17th Informatory Note on Refriger ating Technologie s How to improve energ y efficiency in refrigerating equipment Introduction Refrigera ti on is tec h n o l ogy w h ich m a kes a m a jor con t ri but io n t o hum ani t y in m a ny w a y s inclu d i ng fo od prese r vati on , co ntr o l of in do or air qua lity , gas l i quefa cti o n , i n dustri a l proce ss contr o l, pro duc ti on of foo d an d dri nk a nd c o m puter cool in g. Wi th o u t refrigerat i o n , m odern life w oul d be im p o ssib l e. A b o u t 15% of t h e w o rld’s elec tricity is use d t o driv e refrig e rati ng a nd ai r- con d i tio ni ng s y stem s. Inefficie n t use of e n ergy is a w a ste of va l u a b le resource a nd con t rib u t e s to glo b a l w a rm ing. M o st of th e glo b a l w a rm ing effect of refrigerat i n g sy stem s co m e s fro m generat i ng e n ergy to drive t h em . Only a sm all prop orti e s fro m the release of certai