Performance and Complexity Trade Study of Candidate Liquid Air Generation Techniques
Abstract
This paper presents the results of an alternatives analysis of gas-liquefaction methods used in liquid air energy storage (LAES) systems that incorporates two novel measures of performance (MOP) into the analysis: system complexity score and system density. The cryogenic methods typically considered for air, and used in this trade study, include Linde-Hampson, Claude, Heylandt, and cascade. With these four options of air liquefaction currently in use for a variety of purposes with ranging scales, there exists no standard selection process for the air-liquefaction method in LAES. This trade study provides fundamental design solutions for given stakeholder requirements, allowing for a pragmatic analysis of integration for future implementation of LAES systems. The intent of these design solutions is for use in the earliest stage of consideration of a LAES implementation, helping stakeholders quickly narrow the focus of their design engineers to a specific liquefaction process. This will reduce the complexity of integration techniques and processes and streamline LAES into the energy-storage industry. The results of this study showed that with evenly weighted MOP, the Heylandt method had the highest final weighted score (0.9), followed by cascade(0.88), Claude (0.86), and Linde-Hampson (0.67). However, the results showed that the cascade method was the most frequent design solution (8/11) from 11 variations of MOP weight distributions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 2021
- Accession Number
- AD1151204
Entities
People
- Masis B. Torosyan
Organizations
- Naval Postgraduate School