Results 101 to 110 of about 53,785 (282)

Investigation of an R134A Refrigerant/Iso 32 Polyol Ester Oil Mixture in Condensation [PDF]

, 2001
Air Conditioning and Refrigeration Project ...
Chato, J.C., Newell, T.A., Piggott, W.T., III   +2 more
core  

Atomically Thin Sieves: Two‐Dimensional Materials for Membrane Separation

Advanced Physics Research, EarlyView.
Atomically thin membranes derived from 2D materials overcome the inherent selectivity‐permeability trade‐off in conventional separation technologies. This perspective elucidates transport mechanisms for gases, water, and ions, surveys fabrication strategies including top‐down pore engineering and bottom‐up synthesis, highlights recent experimental and ...
Yiran Gong, Pengzhan Sun, Yu Ji
wiley   +1 more source

Evaluation of newly copolymers and their montmorillonite nanocomposite as cold flow improver for petroleum lubricating oil. [PDF]

Sci Rep, 2023
El-Bahnasawi AH, El-Segaey AA, Albohy SAH, El-Azabawy OE, Arafa EI, El-Koly NG, Al-Shafey HI.   +6 more
europepmc   +1 more source

Advances in Triboelectric Nanogenerators With Rotating Structure

Carbon Energy, EarlyView.
The rotating TENG has been widely studied for its superiorities of simple structure, high efficiency, and stable output. This review introduced the four different principles of rotating TENG and offered a thorough summary for performance and application research through three‐level classification. Importantly, the current existing problems, challenges,
Chuguo Zhang, Chunxu Xue, Yutong Chen, Yujie Qiang, Seeram Ramakrishna   +4 more
wiley   +1 more source

Waste Polymer and Lubricating Oil Used as Asphalt Rheological Modifiers. [PDF]

Materials (Basel), 2022
Owaid KA, Hamdoon AA, Maty RR, Saleh MY, Abdelzaher MA.   +4 more
europepmc   +1 more source

Liquid lubricants for advanced aircraft engines [PDF]

An overview of liquid lubricants for use in current and projected high performance turbojet engines is discussed. Chemical and physical properties are reviewed with special emphasis placed on the oxidation and thermal stability requirements imposed upon ...
Fusaro, Robert L., Loomis, William R.
core   +1 more source

A Methodology to Integrate Closed‐Cycle Heat Pumps into Batch Distillation Columns

Chemie Ingenieur Technik, EarlyView.
Batch distillation often cannot use vapor recompression due to contamination risks in food and pharma. This study proposes a design for integrating closed‐loop heat pumps using natural fluids. Results show significant energy savings, offering a sustainable alternative to traditional setups.
Philipp Dorn, Michael Libuda, Thomas Meyer, Christian Hoffmann, Jens‐Uwe Repke, Stefan Elbel   +5 more
wiley   +1 more source

Impact of Lubricating Oil Leakage Characteristics of a Bearing Cavity Sealing System Based on an Oil–Gas Two-Phase Flow

Lubricants
In this paper, we aim to study the oil–gas two-phase flow characteristics, leakage characteristics, and critical oil sealing characteristics of the bearing cavity sealing system of aero-engine bearings.
Guozhe Ren, Rui Wang, Dan Sun, Wenfeng Xu, Yu Li   +4 more
doaj   +1 more source

Effect of TiO₂ nanoparticles on the tribological properties of lubricating oil: an experimental investigation. [PDF]

Sci Rep, 2022
Birleanu C, Pustan M, Cioaza M, Molea A, Popa F, Contiu G.   +5 more
europepmc   +1 more source

Revisiting acidulation for tall oil and lignin manufacturing

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Tall oil is a byproduct of the kraft pulping process when softwood is used as raw material. As the production of softwood‐based pulp is in high demand, the optimization of the tall oil production process needs to be revisited to ensure the highest quality and quantity of tall oil manufacturing. In this work, the process for tall oil production
Thomas Aro, Weijue Gao, Pedram Fatehi
wiley   +1 more source