Mutumba, A, Cheeseman, K, Clarke, H et al. (1 more author) (2018) Design and development of a direct injection system for cryogenic engines. Cryogenics, 91. pp. 77-86. ISSN 0011-2275
Abstract
The cryogenic engine has received increasing attention due to its promising potential as a zero-emission engine. In this study, a new robust liquid nitrogen injection system was commissioned and set up to perform high-pressure injections into an open vessel. The system is used for quasi-steady flow tests used for the characterisation of the direct injection process for cryogenic engines. An electro-hydraulic valve actuator provides intricate control of the valve lift, with a minimum cycle time of 3 ms and a frequency of up to 20 Hz. With additional sub-cooling, liquid phase injections from 14 to 94 bar were achieved. Results showed an increase in the injected mass with the increase in pressure, and decrease in temperature. The injected mass was also observed to increases linearly with the valve lift. Better control of the injection process, minimises the number of variables, providing more comparable and repeatable sets of data. Implications of the results on the engine performance were also discussed.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © 2018 Elsevier Ltd. This is an author produced version of a paper published in Cryogenics. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Cryogenic engine injection; Liquid nitrogen; Hydraulic valve actuator; Thermal energy; Zero emission engine |
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 23 Jul 2018 10:49 |
Last Modified: | 31 Jan 2019 01:39 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.cryogenics.2017.12.009 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:133623 |
Download
Filename: REVISION of Design & development of a direct injection system for cryogenic engines deposition.pdf
Licence: CC-BY-NC-ND 4.0