Simulation of a Regenerative Reciprocating Machine on an Analog Computer

The complicated energy conversion processes in a Stirling cycle machine are simulated on an electronic analog computer. This gives the cyclic variation of all the time variables (pressure, temperature, torque, and so on), and the integrated energy quantities (heat exchange, work, losses, and so on) and, hence, yields a complete heat balance. Operating conditions are defined by specified parameters, and changes can be made very easily for a wide range of solutions. One sample solution is included, as well as graphs and heat-flow diagrams, showing the effect of changes in the regenerator efficiency when all other factors are kept constant. This has led to a new understanding of the regenerative process.