Publication:
Comparative environmental assessment of two materials suited to central tower CSP technology

Thumbnail Image
Identifiers
URI: https://hdl.handle.net/10016/34689
ISSN: 0038-092X
DOI: https://doi.org/10.1016/j.solener.2018.01.036
UXXI: AR/0000028030
Files
comparative_SE_2018_ps.pdf (1.21 MB)
Publication date
2018-03-01
Defense date
Authors
Advisors
Tutors
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Impact
Google Scholar
Export
Research Projects
Organizational Units
Journal Issue
Abstract
Compatibility of containment materials with molten salt thermal storage media is a significant technical challenge for Concentrating Solar Power plants. Metal alloys in contact with molten salt must have a specific behavior, mechanical properties and resistance to degradation processes that allow them to operate at temperatures above 500 °C, being both respectful to the environment. Firstly, this study presents two types of specific materials to operate at raised temperatures in Concentrating Solar Power plants, particularly the central tower technology. The materials are AISI 347H stainless steel and the Ni-based alloy HRSA INCONEL 617. Then, a Life Cycle Assessment shows the influence and contribution to different impact categories from the elements that compose both metals, demonstrating that materials that provide better mechanical properties could have environmental shortcomings. This paper aims to contribute to an improved understanding of the environmental implications of these materials and which is the best choice in terms of sustainability. The results showed better environmental behavior in the AISI 347H case against INCONEL 617.
Description
Keywords
Concentrating Solar Power (CSP), Ni-Super Alloy, Stainless steel, Life cycle assessment (LCA)
Bibliographic citation
Solar Energy, (2018), v. 162, pp.: 178-186
Collections
DITF - ISE - Artículos de Revistas Científicas