IMECE2006-14594 Microchannel and Minichannel Heat Exchangers in Advanced Energy Recovery and Conversion Systems

Conference · Wed May 31 00:00:00 EDT 2006

OSTI ID:963609

Hendricks, Terry J

Energy recovery is gaining importance in various industrial process applications because of rising energy costs and geopolitical uncertainties impacting basic energy supplies. Various advanced energy recovery / conversion technologies will require high-performance heat transfer characteristics typical of micro- and mini-channel heat exchangers to achieve energy recovery performance targets and requirements. Initial engineering scoping studies have focused on advanced thermoelectric generator (TEG) systems assuming exhaust gas temperatures of 1033 K (1400 °F) and ambient environment temperatures of 300 K. The engineering analysis used a coupled, integrated thermoelectric (TE) system analysis accounting for the heat exchange / heat transfer performance at both the hot and cold sides and optimum TE device performance to properly predict the power output potential, resulting temperatures and temperature differentials, TEG design and interface requirements, and thermal characteristics across a wide spectrum of potential operating temperature conditions. Modular TEG’s capturing about 5% of typical glass process exhaust flows appear to have potential power outputs of 4 – 6 kW using advanced TE materials. Hot-side & cold-side heat exchange requirements were quantified and performance metrics evaluated to enable effective implementation of advanced TEG systems in industrial process energy recovery. Hot side heat transfer requirements create serious engineering, and possibly scientific, challenges to enabling energy conversion systems, including TEG’s, in industrial process energy recovery. Future advanced heat transfer R&D is necessary and should occur in parallel with on-going advanced TE materials and systems R&D.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 963609
• Report Number(s): PNNL-SA-50298; ED1904032; TRN: US200918%%409
• Resource Relation: Conference: Proceedings of the ASME Advanced Energy Systems Division: Presented at 2006 ASME International Mechanical Engineering Congress and Exposition, November 5-10, 2006, Chicago, Illinois, 46:15-24
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
DESIGN
ENERGY ACCOUNTING
ENERGY CONVERSION
ENERGY RECOVERY
ENERGY SUPPLIES
ENERGY SYSTEMS
GLASS
HEAT EXCHANGERS
HEAT TRANSFER
IMPLEMENTATION
MECHANICAL ENGINEERING
METRICS
PERFORMANCE
TARGETS
THERMOELECTRIC GENERATORS
NESDPS Office of Nuclear Energy Space and Defense Power Systems