Stirling cycle

Stirling cycle Stirling engine Stirred ball mill Stirnng... 

Other Refrigeration Methods. Cryocoolers provide low temperature refrigeration on a smaller scale by a variety of thermodynamic cycles. The Stirling cycle foUows a path of isothermal compression, heat transfer to a regenerator matrix at constant volume, isothermal expansion with heat transfer from the external load at the refrigerator temperature, and finally heat transfer to the fluid from the regenerator at constant volume. 

The fluid mixtures which have been used down to 80 K include nitrogen with roughly equal parts of methane, ethane and propane. Input pressures are 10MPa and overall efficiencies are much greater than single-fluid Joule-Thomson systems and are comparable with the GM and Stirling cycles (see also [55]). 

Fig. 5.16. The successive stages of the Philips Stirling cycle. See text for details [68].

A single-stage version of the GM cooler is depicted in Fig. 5.18. There is a displacer/regenerator, as in the Stirling cycle, but here the flow from the compressor is... 

Stimuli-responsive materials, shape-memory polymers as, 22 355-356 Stirling cycle, 8 43 Stirred autoclave, 14 89, 92t Stirred autoclave reactor, 20 216 Stirred batch RO unit, 21 644 Stirred mills, 16 615 Stirred tank bioreactors, 1 737-740 oxygen transfer driving force, 1 734 Stirred tank electrochemical reactor (STER), 9 660-662... 

The Stirling cycle is composed of the following four processes ... 

The Stirling cycle engine is an external combustion engine. Figure 3.26 shows the Stirling cycle on p-v and T-s diagrams. 

A Stirling cycle operates with 0.1kg of hydrogen as a working fluid between 1000°C and 30° C. The highest and the lowest pressures during the cycle are 3 MPa and 500 kPa. Determine the heat and work added in each of the four processes, net work, and cycle efficiency. 

The Stirling cycle is an attempt to achieve Carnot efficiency by the use of an ideal regenerator. 

In this respect, the Stirling cycle has the same efficiency as the Carnot cycle. 

The regenerative Stirling cycle is illustrated in Fig. 3.29. In this figure, the combination of heater 1 and cooler 1 is equivalent to the regenerator. Heat removed from the cooler 1 is added to the heater 1. Since this energy transfer occurs within the cycle internally, the amount of heat added to heater 1 from cooler 1 is not a part of the heat added to the cycle from its surrounding heat reservoirs. Therefore,... 

Example 3.14 illustrates the analysis of the regenerative Stirling cycle. 

Practical attempts to follow the Stirling cycle present difficulties primarily due to the difficulty of achieving isothermal compression and isothermal expansion in a machine operating at a reasonable speed. 

What are the four processes of the basic Stirling cycle ... 

What would be the cycle efficiency of the Stirling cycle with an ideal regenerator ... 

The Stirling cycle and Wicks cycle are attempts to achieve the efficiency of the Carnot cycle. 

Other finite-time thermodynamic cycle literature including Atkinson, combined and cascaded, Diesel, dual, Ericsson, Otto, Rallis, and Stirling cycles are provided in the following ... 

Blank, D.A. and Wu, C., Power optimization of an endo-reversible Stirling cycle with regeneration. Energy The International Journal, 19(1), 125-133, 1994. 

Shnfos [22248-79-9] Stinpentol [49763-96-4] Stirling cycle Starling engine Starred ball mill Starring... 

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