Refrigeracion Conceptos Basicos

MAKING MODERN LIVING POSSIBLE

Refrigeration - an introduction to the basics

REFRIGERATION & AIR CONDITIONING DIVISION

Lecture

Automatic Controls and Compressors for refrigeration

Automatic controls for commercial refrigeration

Automatic controls for Industrial refrigeration

Electronic controls for refrigeration

Appliance controls

Compressors for household andcommercial refrigeration

Condensing units

Refrigeration - an introduction to the basics
This Danfoss publication must be regarded as a supplement to the comprehensive literature on refrigeration that is available today and which is primarily aimed at readers with a professional relationship to the refrigeration industry/trade e.g. refrigeration engineers and installers. The contents ofthis book are intended to interest those who are not engaged every day with refrigeration plant but who wish to extend their knowledge on the basic principles of appliances they see every day. When compiling the material for the booklet a deliberate attempt was made to provide a thorough description of the elementary principles involved together with an explanation in everyday language ofthe practical design of the individual components. For additional training material we refer to:

http://www.danfoss.com/BusinessAreas/RefrigerationAndAirConditioning
Choose “Training & Education”. Nordborg, 2007

Contents
1. Introduction.......................................................................................................................................................................................... 3 2. Fundamental terms ........................................................................................................................................................................... 4
2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 3.1 3.2 3.3 3.4 3.5 3.6 Unit systems.................................................................................................................................................................................................................................4 Temperature .................................................................................................................................................................................................................................4 Force and pressure.....................................................................................................................................................................................................................5 Heat, work, energy and power..............................................................................................................................................................................................5 Substances and phase change ..............................................................................................................................................................................................6 Latent heat....................................................................................................................................................................................................................................7 Superheat ......................................................................................................................................................................................................................................7 Refrigerantdiagrams.................................................................................................................................................................................................................8

3. Refrigerant circuit .............................................................................................................................................................................. 9...