Regenerative Vapor Cycle with Isobutane as Working Fluid.

摘要

This report describes the investigation of a proposed modification of the basic isobutane cycle with a regenerative heat exchanger. The performance of the regenerative cycle appears very favorable as compared with that of the basic cycle. Although the system is complicated by the addition of a regenerative heat exchanger,the increase in power production and the reduction of the sizes of cooling equipment could justify the extra cost of the regenerative heat exchanger. Geothermal fluid from a well may exist in two phases,vapor and liquid,if the fluid is self-flowing. To avoid scaling, a submersible pump may be used to force the fluid out of the well. Effects of pumping on the power output and heat rejection of a binary cycle have also been evaluated with a specific set of given conditions,and the calculated results are included in this report.