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http://dx.doi.org/10.5855/ENERGY.2016.25.4.251

Fuel cell based CHP technologies for residential sector  

Son, Young Mok (ReSEAT Program, Korea Institute of Science and Technology Information)
Publication Information
Journal of Energy Engineering / v.25, no.4, 2016 , pp. 251-258 More about this Journal
Abstract
This article reports current status of micro fuel cell-combined heat and power (${\mu}FC$-CHP) systems which utilize both power and heat generated by fuel cells. There are several options for constructing CHP systems and among them, fuel cells are the most useful and their total energy efficiency combining heat and power can reach up to about 90%. Fuel cells are classified as five types based on the electrolyte, but the most suitable fuel cell types for the ${\mu}FC$-CHP system are proton exchange membrane fuel cells (PEMFCs) and solid oxide fuel cells (SOFCs). ${\mu}FC$-CHP systems have several advantages such as decrease of the transmission-distribution loss, reduced costs of electricity due to distributed power generation, and environmental-friendliness owing to zero emission. The main drawback of the ${\mu}FC$-CHP systems is the high initial investment, however, it keeps decreasing as the technology development reduces production costs. Currently, Japan is the most leading country of the ${\mu}FC$-CHP market, however, Korea tries to expand the market by planning the deployment of 1 million units of ${\mu}FC$-CHP systems and governmental subsidiary supporting of half of the install price. In this report, integration technologies for connecting FC and CHP, and technology trends of leading countries are presented as well.
Keywords
Fuel cells; combined heat and power; proton exchange membrane fuel cell; solid oxide fuel sell; FC-CHP system;
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