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2020 | OriginalPaper | Chapter

18. Overview of Heat Transfer Augmentation Techniques for Parabolic Solar Concentrator Receiver

Authors : Milind S. Patil, Sanjay Pratapsingh Shekhawat

Published in: Advances in Solar Power Generation and Energy Harvesting

Publisher: Springer Singapore

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Abstract

Solar energy is an alternative to conventional resources of energy. Among the many applications, solar parabolic trough collector is an application that receives heat from the radiation of the sun. Such energy is an alternative way for many rural applications: solar cooker, water pumping, water heating, solar driers, etc. Parabolic trough collector consists of the collector of a paraboloid shape and mounted with the mirrors to reflect and concentrate the solar radiation and focus the same over the receiver/absorber. This heat energy is absorbed by the heat transfer fluid inside the receiver. Such energy also converts water into steam and usually used to drive conventional electrical generators. Receiver heat loss by the mode of convection and radiation is the major cause of lower thermal efficiency. This is why it is essential to study the methods for enhancement of the heat transfer in the parabolic trough receiver. This study focused on the review and feasibility of various heat transfer augmentation techniques for parabolic trough collector receiver/absorber. Study from various publications considers various techniques that are being used by many researchers; this includes use of evacuated receivers, inserts, porous disk, fins, nanofluids, various types of inserts, etc. It is observed that with the use of insert heat transfer augmentation was reported as the highest; however, few of the insert types are yet not used.

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Metadata
Title
Overview of Heat Transfer Augmentation Techniques for Parabolic Solar Concentrator Receiver
Authors
Milind S. Patil
Sanjay Pratapsingh Shekhawat
Copyright Year
2020
Publisher
Springer Singapore
DOI
https://doi.org/10.1007/978-981-15-3635-9_18