Palacios, A and Bradley, D (2022) Hydrogen and wood-burning stoves. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 380 (2221). 20210139. ISSN 1364-503X
Abstract
Wood-burning stoves, in Kenya and Mexico, are reviewed. With a Kenyan stove, burning charcoal, only 24% of the energy released reached the cooking pot. Initially, the proportion of CO in the leaving gases was 3%. Indoor concentrations of particulate matter (less than 2.5 µm diameter) can be abnormally high near a stove. Decarbonization, by using H2, is facilitated by a distribution system. Replacement by H2 would ultimately rest upon wind or water power, or it being a by-product in the production of heavier hydrocarbons from CH4. The averaged burning rate in the Kenyan stove was 10 kW, over 20 min, with an initial peak value of about 30 kW. A possible replacement is a hob, composed of an array of small diameter H2 jet flames. As an example, combustion of a 2 mm internal diameter H2 jet flame, with a H2 exit velocity of 27.2 m s−1, would release 0.84 kW. Bearing in mind its improved efficiency, a single compact hob with an array of about 10 jets would suffice. A difficulty is the low mass-specific energy of H2. H2 has a high acoustic velocity, and both high velocity subsonic combustion and blending with natural gas are briefly discussed.
This article is part of the theme issue ‘Developing resilient energy systems’.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2022 The Author(s). Published by the Royal Society. All rights reserved. This is an author produced version of an article published in Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | blow off; CO; decarbonization; hydrogen; particulates; wood stoves |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Engineering Thermofluids, Surfaces & Interfaces (iETSI) (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 07 Mar 2022 12:50 |
Last Modified: | 25 Jun 2023 22:55 |
Status: | Published |
Publisher: | The Royal Society |
Identification Number: | 10.1098/rsta.2021.0139 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:184319 |