Integration of a Solid Oxide Fuel Cell with an Organic Rankine Cycle and Absorption Chiller for Dynamic Generation of Power and Cooling for a Residential Application

The high temperature exhaust heat from a solid oxide fuel cell (SOFC) can be captured and used as the primary thermal energy source for bottoming cycles. In this study, the waste heat from a fuel cell is captured and processed either through an organic Rankin cycle (ORC) to provide extra power or an...

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Bibliographic Details
Published in:Fuel cells (Weinheim an der Bergstrasse, Germany) Germany), 2019-08, Vol.19 (4), p.361-373
Main Authors: Asghari, M., Brouwer, J.
Format: Article
Language:English
Subjects:
Absorption
Absorption Chiller
Air conditioning
Combined Cooling Heating and Power
Cooling
Dynamic characteristics
Dynamic loads
Dynamic Modeling
Dynamic models
Efficiency
Energy Conversion
Fuel Cell
Heat recovery
High temperature
Load‐Following
Organic Rankine Cycle
Rankine cycle
Residential buildings
Residential energy
Solid Oxide Fuel Cell
Solid oxide fuel cells
Thermal energy
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Summary:The high temperature exhaust heat from a solid oxide fuel cell (SOFC) can be captured and used as the primary thermal energy source for bottoming cycles. In this study, the waste heat from a fuel cell is captured and processed either through an organic Rankin cycle (ORC) to provide extra power or an absorption chiller (AC) to provide cooling for meeting the dynamic cooling demands of a residence/community. A spatially resolved dynamic model was developed in Simulink to study dynamic characteristics of an SOFC system. Also, a dynamic model was developed for the ORC and AC to study the dynamic characteristics and performance of the integrated system. This model was then used to evaluate the efficiency, capacity, and dispatchability of the system, based upon meeting measured load profiles of residential buildings. Dynamic data from a residential complex were used as an input to evaluate the dynamic system model. The SOFC was capable of following the highly dynamic load with an average electrical efficiency of 46%. An average of 7% more power was produced through the ORC cycle with an average efficiency of 10%. The AC generated an average 125 kW of cooling with an average coefficient of performance (COP) of 1.08.
ISSN:1615-6846
1615-6854
DOI:10.1002/fuce.201800192