Ceramics Micro-heat exchanger

Development of a ceramic micro heat exchanger - Design, construction, and testing, Chem. Eng. Technol., 28(12), 2005,1554-1560. 

Figure 4.18 One variant of the ceramic micro-heat exchanger developed at Forschungszentrum Karlsruhe (Aim et al.,2007).

Abn, B., Imke, U., Knitter, R., SchyguUa, U. and Zimmermann, S. (2007). Testing and simulation of ceramic micro heat exchangers. Chemical Engineering Journal, Vol. 135,... 

Figure 13. Assembly of photoetched stainless steel and copper foil positioned on a ceramic and graphite block with alignment pins for diffusion bonding. The finished plate contains 284 micro heat exchangers that are twisted out with a special tool.

In contrast to ceramic and metallic monoHths developed for automotive exhaust treatment purposes, which nowadays carry chaimels on the microscale and are actually micro-reactors by definition, the micro-reactors discussed in this chapter rather cover plate heat-exchanger technology with chaimels on the microscale. An overview of the fundamentals, practical applications, and production issues of micro-reactors for fuel-processing purposes is provided. 

Motorola cooperated with Engelhard and the University of Michigan to develop a micro-structured steam reformer in a project funded by the US Commerce s Department Technology Administration [592]. The integrated fuel processor/fuel cell system consisted of an evaporator, a combustor, a reformer, heat-exchangers, insulation layers and the fuel cell. Ceramic technology was used. The maximum power output of this device, which was patented, amounted to 1W [593]. 

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