https://bura.brunel.ac.uk/handle/2438/8620 Fri, 21 Aug 2026 06:18:30 GMT 2026-08-21T06:18:30Z https://bura.brunel.ac.uk/handle/2438/33732 Title: Experimental characterisation of hollow-cone hydrogen jet behaviour under engine-like conditions Authors: Dong, Shuo; Feng, Yizhuo; Nagarajan, Raghul; Biswal, Abinash; Jiang, Changzhao; Wang, Xinyan; Zhao, Hua Abstract: Internal combustion engines equipped with direct injection (DI) of hydrogen represent a promising pathway toward carbon-neutral transportation. This work presents a systematic experimental investigation of hollow-cone hydrogen jet dynamics generated by an outward-opening injector using high-speed schlieren imaging, integrating jet momentum measurements. The hydrogen jet evolution is identified as a two-stage process, i.e., near-nozzle underexpanded structures dominated by pressure-ratio effects and a subsequent self-similar dense-jet stage governed by momentum. The pressure-ratio-dominant and momentum-dominant scaling laws are evaluated for these two stages, clarifying the governing mechanisms of hollow-cone hydrogen jet development. Furthermore, a quantitative evaluation of hydrogen mixing behaviour is conducted with a constant injected mass under different injection pressures (Pinj). The results show that Pinj has a limited influence on jet shapes during injection, whereas higher Pinj improves spatial mixture homogeneity. The difference in homogeneity can be reduced by allowing a longer mixing time after the end of injection. Description: Supplementary data are available online at: https://www.sciencedirect.com/science/article/pii/S0360319926037195#appsec1 . Wed, 19 Aug 2026 00:00:00 GMT https://bura.brunel.ac.uk/handle/2438/33732 2026-08-19T00:00:00Z https://bura.brunel.ac.uk/handle/2438/33730 Title: Correction: From corporate greenhouse gas inventories to design-relevant LCAs: an integrated framework for industrial decarbonization Authors: Don Merenchige, Upendra Arjeewani Weerathunga; Wang, Bin; Ji, Shouxun Abstract: During typesetting of this article in place of Fig. 3, Fig. 4 was duplicated. The missing Fig. 3 is shown below: Example of data collection granularity across emission sources, illustrating hierarchical categorization from emission source to client level. The framework enables detailed activity data collection, for example, raw materials are traced from material type and grade to product type, accurate emission allocation across both organizational and product-level inventories The original article has been corrected. Description: Data availability: The data supporting the findings of this case study were provided by the participating organization under confidentiality agreements. As such, the data are not publicly available in accordance with the organization’s data disclosure policy.; The corrected manuscript is archived below (59 pp.) under an embargo period of 12 months. Wed, 24 Jun 2026 00:00:00 GMT https://bura.brunel.ac.uk/handle/2438/33730 2026-06-24T00:00:00Z https://bura.brunel.ac.uk/handle/2438/33729 Title: Pressure-regulated pool boiling for lithium-ion batteries based on a thermo-lifetime-economic coupling framework Authors: Wang, Xiang; Li, Liang; Tassou, Savvas A Abstract: Pool boiling cooling offers strong potential for lithium-ion battery thermal management due to its high-efficiency phase-change heat transfer. However, most existing studies are limited to atmospheric pressure, and the coupled effects of pressure on thermal behaviour, battery lifetime, and economic performance remain unclear. In this study, a thermo-lifetime-economic coupling model is developed and experimentally validated through pressure-controlled pool boiling cooling of a battery module over a pressure range of 20–100 kPa. The results show that pool boiling significantly outperforms natural air-cooling, reducing the maximum temperature from 88.8 °C to 45.6 °C (48.6%) and the temperature difference from 9.3 °C to 3.1 °C (66.7%) at 2.5C. Further pressure reduction enhances thermal performance by lowering the saturation temperature and promoting earlier nucleate boiling. When the pressure decreases from 100 kPa to 20 kPa, the maximum temperature and temperature difference are further reduced by 26.3% and 38.7%, respectively, leading to a lifetime improvement of up to 65.1%. However, this improvement is accompanied by a substantial increase in auxiliary power consumption, which rises by more than 14.6 times, resulting in a strong thermo-economic trade-off with diminishing returns at low pressures. Furthermore, system scale critically affects economic feasibility. Pressure reduction increases cost at small scales but becomes favourable beyond a critical scale due to the growing contribution of lifetime-related cost. These results show that pressure regulation can improve pool boiling battery cooling, but the operating pressure should balance thermal performance, lifetime, and energy consumption. Description: Data availability: Data will be made available on request. Sat, 11 Jul 2026 00:00:00 GMT https://bura.brunel.ac.uk/handle/2438/33729 2026-07-11T00:00:00Z https://bura.brunel.ac.uk/handle/2438/33725 Title: From design to decarbonisation: a BIM-based comparative analysis of embodied carbon in buildings Authors: Ercal, Orhan; Shafique, Muhammad Abstract: The construction industry is a significant contributor to global carbon emissions, with embodied carbon accounting for a growing proportion of building life-cycle emissions. Comparative analyses that assess various structural systems within a single, controlled building design remain limited, despite increasing interest in building information modelling- life cycle assessment (BIM-LCA) integration. This study addresses this gap by providing a BIM-based assessment framework that quantifies and compares the embodied carbon of three structural systems (steel, reinforced concrete, and timber) applied to an identical conceptual two-storey residential structure in the UK. Material quantities were extracted from a parametric Revit model and integrated with emission factors within a cradle-to-gate (A1-A3) system boundary. The results indicate that total embodied carbon amounts to 104,165 kgCO₂eq for a traditional steel house, 84,640 kgCO₂eq for a traditional reinforced concrete house, and 51,255 kgCO₂eq for a traditional timber house. By employing low-carbon material alternatives, embodied carbon is reduced by 40.4% in the steel house, 32.2% in the concrete house, and 19.7% in the timber house, respectively. Thus, encouraging early-stage sustainable design decisions can make a substantial contribution to the decarbonisation of the built environment. Description: Availability of data and materials: Data in this study are available from the corresponding author upon reasonable request.; Supplementary Materials are available online at: https://image.oaes.cc/published/article/eb5d33b49c8ad0a26385ba60c48af548/cf6002-SupplementaryMaterials.pdf . Thu, 11 Jun 2026 00:00:00 GMT https://bura.brunel.ac.uk/handle/2438/33725 2026-06-11T00:00:00Z