Title: A New Solar Reactor Aperture Mechanism Coupled with Heat Exchanger
Authors: Menon, Akanksha K
Farid, Asadullah
Ozalp, Nesrin #
Issue Date: 2013
Publisher: AIDIC
Host Document: Chemical Engineering Transactions vol:35 pages:751-756
Conference: International Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction (PRES) edition:16 location:Rhodes, Greece date:29 September - 02 October 2013
Abstract: Concentrated solar energy finds applications for power generation and as a source of heat for solar thermochemical processes. However, solar energy reaching the earth’s surface is intermittent and fluctuates with weather conditions, position of the sun throughout the day and other seasonal changes. This causes a major drawback in receiver efficiency as semi-constant temperatures are required for efficient operation of solar thermochemical processes. This paper introduces a new variable aperture mechanism which is coupled with a heat exchanger to collect unused heat during peak times. The paper presents an optical and heat transfer analysis of the concept using Monte-Carlo ray tracing technique via TracePro and an in-house developed heat transfer code. The heat transfer analysis of the proposed concept shows the optimum aperture diameter with a compromise between reactor temperature and reradiation losses. It also predicts the losses incurred by the variable sized aperture mechanism when the incoming solar radiation changes.
ISBN: 978-88-95608-26-6
ISSN: 1974-9791
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Non-KU Leuven Association publications
# (joint) last author

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