Ship refrigeration system pdf

A refrigerated container or reefer is an intermodal container (shipping container) used in intermodal freight transport that is capable of refrigeration for the transportation of temperature-sensitive, perishable cargo such as fruits, vegetables, meat, and other similar items. 8 refrigerants. 9 purchasing a new refrigeration system. 10 industry specific refrigeration efficiency tips. Appendix f - bibliography and web links. Refrigeration systems. Energy Efficiency Reference Guide. Keywords: Refrigeration; Refrigerant; Absorption; Heat pump. Performance of an absorption refrigeration systems is critically dependent on the chemical and thermodynamic properties of the working uid [3]. A fundamental requirement of absorbent/refrigerant combination is that, in liquid 3 2. analysis of refrigeration systems and refrigerant options . 9 Figure 3. Carbon dioxide equivalent emissions of the various refrigeration systems in the seven climate zones of the continental United States, relative to the baseline R-404A DX system in Miami Refrigeration capacity A cooling system is a machine that extracts heat from a substance or a room. The refrigeration capacity is the ability to dissipate a given quantity of heat in a given period of time. In compression refrigeration systems, suitable oil must be used for compressor lubrication. The most common refrigeration system in use for refrigerated food transport applications today is the vapour compression system. Mechanical refrigeration with the vapour compression cycle offers a wide range of options for compressor drive methods. The choice may be based on duty required, weight Industrial refrigeration system basics, in this video we'll be looking at how ammonia refrigeration systems work, starting at the basics to understand how Today, mechanical refrigeration systems make transportation, storage, and use of refrigerated goods easy and practical. Mechanical refrigeration systems are an arrangement of components in a system that puts the theory of gases into practice to provide artificial cooling. Food refrigeration systems and AIR conditioning systems. - Course support for Erasmus students Three of these refrigerants became very popular, that is, ammonia and sulfur dioxide for refrigerators and other small units and carbon dioxide preferably for ships' refrigeration. Vapour absorption refrigeration system based on ammonia-water is one of the oldest refrigeration systems. Since presence of large amount of water in refrigerant circuit is detrimental to system performance, rectification of the generated vapour is carried out using a rectification column and a Refrigerant-Control Devices (TC 8.8, Refrigerant System Controls and Accessories) 12. Lubricants in Refrigerant Systems (TC 3.4, Lubrication) 13. Secondary Coolants in Refrigeration Systems (TC 10.1) 14. Forced-Circulation Air Coolers (TC 8.4, Air-to-Refrigerant Heat Transfer Equipment) 15. Refrigeration System with Pump Circulation. The compressor is the "heart" of the refrigeration system. It has two basic functions: 1. Maintain the pressure in the evaporator so that the liquid refrigerant can evaporate at the required temperature; 2. Compress the refrigerant so that it can be Refrigeration System with Pump Circulation. The compressor is the "heart" of the refrigeration system. It has two basic functions: 1. Maintain the pressure in the evaporator so that the liquid refrigerant can evaporate at the required temperature; 2. Compress the refrigerant so that it can be Industrial refrigeration and heat pump systems § Industrial refrigeration systems are used in a wide range of applications globally, applying a variety of refrigerants • While new ships use R-717 and R-744, either alone or in cascade systems, the majority of the existing global fleet of reefer ships and