You are here

WASTE HEAT-TO-POWER IN SMALL-SCALE INDUSTRY USING SCROLL EXPANDER FOR ORGANIC RANKINE BOTTOMING CYCLE

TIAX LLC - Lexington, MA

Medium-grade waste heat can be converted to electric power using a novel, scalable scroll expander having an isentropic expansion efficiency of 75% to 80% for a broad range of organic Rankine cycle boiler pressures, condensing temperatures, and speeds. Estimates suggest the system would generate net income in three years and provide national energy savings of 0.90 TBtu/year just for natural gas from coffee roasting applications alone.