There are four different criteria used to describe heat pump efficiency. In all of these criteria, the higher the number the higher the efficiency of…
Author: sam
Heat pumps have enormous potential for saving energy, particularly in industrial processes. They are the only heat recovery systems which enable the temperature of waste…
Solar energy is a renewable and ozone-friendly energy source. Solar cooling is the most attractive subject for many engineers and scientists who work on solar…
Many food products (e.g fruits, vegetables, meats, dairy products) are stored in cooling units for periods on the order of weeks at temperatures between 0…
The developing worldwide shortage of petroleum emphasizes the need for alternative nergy sources which are both inexpensive and clean. There has been high interest in…
Garrett and Hofler (1992) pointed out that two recent events are responsible for the new em in refrigeration before the beginning of the twenty-first century.…
This type of system is used to move heat from one area to another by use of electrical energy. The electrical energy, rather than the…
In steam jet refrigeration systems, water can be used as the refrigerant. Like air, it is perfectly safe. These systems were applied successfully to refrigeration…
The air-standard refrigeration cycles are also known as the reverse Brayton cycles. In these systems, refrigeration is accomplished by means of a non-condensing gas (e.g.…
Recently, Newell (2000) has proposed a new electrochemical ARS as shown in Figure 3.52, which consists of four main components. An electrochemical cell is the…