Results 51 to 60 of about 1,787 (217)
Lubrication Science, Volume 38, Issue 5, Page 301-326, August 2026.ABSTRACT Porous gas bearings (PGBs) enable high‐speed, oil‐free operation in modern rotating machinery. This study develops a coupled thermo‐hydrodynamic (THD) model for a cylindrical porous gas bearing lubricated with four working fluids—air, R‐134a, helium and hydrogen.
S. Bechiri, B. Bouchehit, B. Bou‐Saïd
wiley +1 more source
TEST OF A SOLAR-HYBRID MICROTURBINE SYSTEM AND EVALUATION OF STORAGE DEPLOYMENT [PDF]
, 2010 A solar-hybrid microturbine system using a tube receiver and a Turbec T100 was tested at the Plataforma Solar de Almería. The design receiver outlet temperature of 800°C was achieved with an open receiver aperture and also using a pressureless quartz ...
Amsbeck, Lars +9 more
core
Extreme Learning Machine-Based Diagnostics for Component Degradation in a Microturbine
Energies, 2022 Micro turbojets are used for propelling radio-controlled aircraft, aerial targets, and personal air vehicles. When compared to full-scale engines, they are characterized by relatively low efficiency and durability.
Nicola Menga +4 more
doaj +1 more source
Chlorella vulgaris biorefineries: sustainable biofuels and high‐value carbon capture
Biofuels, Bioproducts and Biorefining, Volume 20, Issue 4, Page 1683-1707, July/August 2026.Abstract Global reliance on fossil fuels has created urgent economic and environmental challenges, yet large‐scale use of algal biomass remains limited by production costs. Industrial scaling is constrained by inefficient harvesting and the technical challenges of processing recalcitrant cell walls.
Sandyelle Ferreira Alcântara Araújo +13 more
wiley +1 more source
Development of a tube receiver for a solar-hybrid microturbine system [PDF]
, 2008 Solar-hybrid microturbine systems with cogeneration offer new possibilities for the generation of electricity and heat or air conditioning. The solar receiver is an important component of such a system. For a prototype system demo project a tube receiver
Amsbeck, Lars +4 more
core
A microturbine flow sensor created on an optical fiber tip using multiphoton nanomachining process [PDF]
, 2022 We report a microturbine flow sensor built onto the tip of an optical fiber by multiphoton nanomachining process.
Williams, Jeremiah C. +3 more
core +1 more source
Energies, 2021 The reliance on coal-fired power generation has gradually reduced with the growing interest in the environment and safety, and the environmental effects of power generation are now being considered. However, it can be difficult to provide stable power to
Haesung Jo, Jaemin Park, Insu Kim
doaj +1 more source
Hydrogen to Power: Exploring Current Developments and Future Challenges
Natural Sciences, Volume 6, Issue 3, July 2026.As the interest in low‐carbon energy systems grows, hydrogen continues to attract attention as a flexible energy carrier for power applications. Developments in hydrogen production, storage, transport, and utilization are explored. In addition, the deployment challenges of hydrogen energy vector related to economics, infrastructure, safety, and ...
Md. Shafiullah +6 more
wiley +1 more source
A Model Modification for a Microturbine Set with Partial Admission Stages
EnergiesThe vapour microturbine set’s mathematical model has been updated to consider the partial admission of turbine stages. Experimental data from two distinct microturbine sets were used to verify the model. The model of the microturbine set was tested under
Wojciech Włodarski, Marian Piwowarski
doaj +1 more source
The Untapped Hydropower Potential of World's Cities
Earth's Future, Volume 14, Issue 5, May 2026.Abstract Many large cities around the world experience frequent power outages and yet have an abundance of tall buildings and experience rainfall. This represents a unique and scalable opportunity for cities to capture the intermittent rainwater at high elevation and convert the potential energy into electricity for rechargeable batteries at street ...
Shahzaib Khan +3 more
wiley +1 more source