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Opto-mechanical design for sight windows under high loads.

Ihracska, B., Crookes, R.J, Montalvão, D., Herfatmanesh, M.R., Peng, Z., Imran, S. and Korakianitis, T., 2017. Opto-mechanical design for sight windows under high loads. Materials and Design, 117 (March), 430-444.

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Material selection and detailed design of optical windows under high loads-160801 vDM2.pdf - Accepted Version
Available under License Creative Commons Attribution Non-commercial No Derivatives.


DOI: 10.1016/j.matdes.2016.12.080


In this study, the design aspects of optically accessible pressure vessels are investigated via a case study of a High Pressure Combustor experimental rig. The rig was designed to take optical measurements of combustion, simulating the conditions found in internal combustion engines and turbines. Although, it is not new to equip chambers and reactors with sight windows, important aspects of design and relevant information regarding optical access is missing or are insufficiently explored or not readily accessible in the existing literature. A comprehensive review of requirements for optical access to such high-pressure, high-temperature systems has been conducted. It is shown in a readily-navigable format as function of application and precision, with data and technical correlations hitherto not found in a ‘user-friendly’ style. The material selection procedure is detailed and supported by a complete comparison of optical materials and relevant properties. The review revealed a significant inconsistency in mechanical properties claimed in the literature for optical materials. As a response to this, increased safety factor values are suggested as function of level of uncertainties and effects of failure, typically three to four times higher than the industrial standard. Moreover, newly developed equations are presented linking performance analysis to the design criteria.

Item Type:Article
Uncontrolled Keywords:Optically-accessible reactor; Optical engine; Pressure vessel; Sapphire; Window design; Combustion
Group:Faculty of Science & Technology
ID Code:25982
Deposited By: Symplectic RT2
Deposited On:05 Jan 2017 14:39
Last Modified:14 Mar 2022 14:01


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