New Criteria to Characterize the Waste Heat Recovery

A steam Rankine cycle with two-stage pumping to enhance the waste heat recovery from internal combustion engines

In this research, a high-temperature Rankin cycle (HTRC) with two-stage pumping is presented and investigated. In this cycle, two different pressures and mass flow rates in the HTRC result in two advantages. First, the possibility of direct recovery from the engine block by working fluid of water, which is a low quality waste heat source, is created in a HTRC. Secondly, by doing this, the mean ...

Development of Thermoelectric Generators for the Waste Heat Recovery

To design and analyse a model that can utilize the waste heat energy from various sources like heat energy obtained the car engines exhaust system and to convert obtained heat energy into electricity for multipurpose use in automobiles. Many considerations have been taken to make this system economical, easy to implement and does not produce any burden on car efficiency or engine efficiency. Th...

An algorithm for optimal waste heat recovery from chemical processes

We describe a computer algorithm designed to calculate the optimal energy extraction in the form of heat used for steam raising from chemical processes. The concepts are illustrated using chemical plant stream data in a process with multiple distillation columns. Pinch analysis is first applied to find the grand composite curve (GCC) of the problem, which is then used by the algorithm to determ...

Cost-effective waste heat recovery using thermoelectric systems

A Review on Electroactive Polymers for Waste Heat Recovery

This paper reviews materials for thermoelectric waste heat recovery, and discusses selected industrial and distributed waste heat sources as well as recovery methods that are currently applied. Thermoelectric properties, especially electrical conductivity, thermopower, thermal conductivity and the thermoelectric figures of merit, are considered when evaluating thermoelectric materials for waste...