Mechanical vapor compressio--Membrane distillation hybrids for reduced specific energy consumption [PDF]
Desalination and Water Treatment, 2016 The energy efficiency of membrane distillation (MD) systems is low when compared to other thermal desalination systems. This leads to high water production costs when conventional fuels such as natural gas are used.
Lienhard, John H +2 more
core +5 more sources
Real-Time Minimization of Mechanical Specific Energy with Multivariable Extremum Seeking [PDF]
Energies, 2021 Drilling more efficiently and with less non-productive time (NPT) is one of the key enablers to reduce field development costs. In this work, we investigate the application of a data-driven optimization method called extremum seeking (ES) to achieve more
Magnus Nystad +2 more
doaj +3 more sources
A New Mechanical Specific Energy Model for Composite Impact Drilling
Applied Sciences, 2022 Composite impact drilling technology is one of the important techniques to increase drilling speeds in deep hard formations. In order to evaluate the efficiency of drilling with a composite impactor in real time and effectively, and to further improve ...
Jianyu Qin +6 more
doaj +2 more sources
Energies, 2022 This article is devoted to the development of technology for improving the efficiency of directional well drilling by predicting and adjusting the system of static and dynamic components of the actual weight on the bit, based on the real-time data ...
Andrey Kunshin +3 more
doaj +2 more sources
Specific microbiome-dependent mechanisms underlie the energy harvest efficiency of ruminants [PDF]
The ISME Journal, 2016 Abstract Ruminants have the remarkable ability to convert human-indigestible plant biomass into human-digestible food products, due to a complex microbiome residing in the rumen compartment of their upper digestive tract. Here we report the discovery that rumen microbiome components are tightly linked to cows’ ability to extract energy ...
Shabat, Sheerli Kruger Ben +8 more
openaire +2 more sources
Crashworthiness capability of jute and glass fibre reinforced epoxy tubes under quasi-static loading condition for automotive application [PDF]
, 2021 During last few years, the interest in using natural fibers as reinforcement in polymers has increased dramatically. Natural fibers are not only strong and lightweight but also relatively very cheap.
Hamza, Sabah Salim
core +1 more source
Experimental study on working mechanics of PDC bit with worn teeth
Jin'gangshi yu moliao moju gongcheng, 2023 PDC bits have been working in a worn state for a long time. To explore its cutting performance and avoid premature failure of the bit, this paper analyzes the load on the worn teeth and the drilling characteristics of the bit through single tooth cutting
Chunliang ZHANG +6 more
doaj +1 more source
Estimation of specific cutting energy in an S235 alloy for multi-directional ultrasonic vibration-assisted machining using the Finite Element Method [PDF]
, 2020 The objective of this work is to analyze the influence of the vibration-assisted turning process on the machinability of S235 carbon steel. During the experiments using this vibrational machining process, the vibrational amplitude and frequency of the ...
Florez García, Luis Carlos +2 more
core +2 more sources
Thermo-mechanical recycling of rubber: Relationship between material properties and specific mechanical energy [PDF]
Journal of Materials Processing Technology, 2018 The studied and optimized devulcanization process is known as " High Shear Mixing " (HSM) recycling process. In the process the rubber is sheared between two metallic cones with special geometries. One cone is static as the other one rotates simultaneously and applies pressure to the material.
Diaz, Rodrigo +3 more
openaire +2 more sources
Energies, 2022 The Permian igneous rock in Shunbei Oilfield exhibits high rock strength, which results in a low rate of penetration (ROP) and shortens the cutter’s service life. It is necessary to analyze and evaluate the rock breaking effect of cutters.
Zhuoxin Dong +6 more
doaj +1 more source