Developing and testing low cost LTD Stirling engines

作者：Aragon Gonzalez G^*; Cano Blanco M; C****es Palma A; Leon Galicia A

来源：Revista Mexicana de Fisica, 2013, 59(1): 199-203.

• Stirling cycle
• LTD machines
• Ringbom motors
• power and thermal efficiency measurement

The construction of miniature LTD Stirling engine prototypes, developed with low-cost materials and simple technologies is described. The protypes follow the Ringbom motor array, without mechanical linkages to actuate the displacer piston. Different designs, sizes, materials and mechanisms components have been tested. The power piston has been replaced with a flexible diaphragm and the mechanisms linkages were constructed with piano steel wire. Power output and efficiency experimental measurements are presented for two miniature LTD Stirling engines, the MM7 model from American Stirling Company and our simplest low cost model. A reasonable design to build low cost engines, rendering brake power and thermal efficiencies about 40 % those obtained with similar commercial engines, but only 5 % the cost has been obtained.

• 出版日期2013-2