High Temperature Heat Exchanger for Rankine Cycle based Exhaust Waste Heat Recovery

Abstract

A high temperature heat exchanger has been developed for application in a Rankine cycle. (Organic) Rankine Cycle technology is considered for exhaust Waste Heat Recovery from heavy-duty vehicles and other high power applications. The developed exhaust evaporator has a modular and durable design and can operate at high temperature and pressure range. The design has been tested and validated and has been certified according to European pressure equipment and German AD 2000 directives. Units have been accumulating in-field operating hours since 2007 without failure. The modular design allows to tailor an evaporator for specific applications. This process is supported by a developed dimensioning tool and simulation models.