Results 81 to 90 of about 47,254 (254)

An overview of NASA research on positive displacement general-aviation engines [PDF]

, 1980
The research and technology program related to improved and advanced general aviation engines is described. Current research is directed at the near-term improvement of conventional air-cooled spark-ignition piston engines and at future alternative ...
Kempke, E. E., Jr.
core   +1 more source

High‐Temperature Heat Pump Test Bench with n‐Butane (R‐600) Generating Steam

Chemie Ingenieur Technik, EarlyView.
This work involves building a test bench for a high‐temperature heat pump (HTHP) and analyzing the measurements. The focus is on steam generation using an HTHP to decarbonize process steam demand. The findings indicate that stable steam generation is possible, providing a higher heat transfer coefficient in the heat pump's condenser.
Sebastian Benkert, Lukas Joos, Ursula Wittstadt, Torsten Will, Andreas Burger, Lena Schnabel, Stefan Henninger, Thorsten Klahm   +7 more
wiley   +1 more source

Visualization experiment study on oscillatory flow characteristics of two-phase flow [PDF]

Journal of Hebei University of Science and Technology
In order to solve the oscillatory heat transfer problem of gas-liquid two-phase flow of cooling oil gallery of piston, a reciprocating oscillatory experimental device reformed by diesel engine was designed and established. The oscillatory flow process of
Hairong ZHU, Xu XIAO, Kailun ZHANG, Lin LI, Zhao WANG   +4 more
doaj   +1 more source

Hot Forging of an Engine Piston using Control Cooling

Transactions of Materials Processing, 2015
Abstract The piston engine is an essential component in automobiles. Since the piston is used in a high temperature and high pressure environment, the piston needs to be manufactured to achieve high strength and high durability. In addition, cost reduction is also an important consideration.
S. I. Lee, D. H. Choi, J. H. Lee
openaire   +2 more sources

A quantum heat engine with coupled superconducting resonators

, 2017
We propose a quantum heat engine composed of two superconducting transmission line resonators interacting with each other via an optomechanical-like coupling. One resonator is periodically excited by a thermal pump.
Aslan, Nur, Hardal, Ali Ü. C., Müstecaplıoğlu, Özgür E., Wilson, C. M.   +3 more
core   +1 more source

Liquid Hydrogen Target Experience at SLAC [PDF]

, 2005
Liquid hydrogen targets have played a vital role in the physics program at SLAC for the past 40 years. These targets have ranged from small "beer can" targets to the 1.5 m long E158 target that was capable of absorbing up to 800 W without any significant
/Caltech, /Massachusetts U., Amherst, /SLAC, Arnold, R., Bosted, P., Boyce, R., Candia, A., Carr, R., Gao, J., Jones, C.E., Kaminskas, W., Mark, J., McKeown, R., Racine, M., St. Lorant, S., Weber, T., Weisend, J.G.   +16 more
core   +2 more sources

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

The concept of technical combination of water supply systems and low-temperature air flow generation [PDF]

BIO Web of Conferences
The concept concerns the field of design and development of technical systems with an increased level of operational adaptability, in particular, the creation of air compression systems to lower its temperature before being supplied to a technological ...
Ivanov P.A., Asmankin E.M., Ushakov Y.A., Rotova V.A., Neufeld E.V., Boyko I.G.   +5 more
doaj   +1 more source

Оцінка резервів підвищення ресурсної міцності поршня швидкохідного дизеля [PDF]

, 2007
On the basis of the generalized function of desirability the analysis of influence coefficient heat exchange in a cooling gallery on a temperature condition of a high-speed diesel engine piston is executed.
Турчин, В. Т.
core  

Investigating the Cytoskeleton of DRGs Using Cryo‐Electron Microscopy and Deep Learning

Cytoskeleton, EarlyView.
ABSTRACT We describe a method for determining the ultrastructural organization of axons and varicosities of cultured dorsal root ganglion (DRG) neurons using cryogenic electron microscopy (cryo‐EM). Cryo‐EM reveals the dimensions, proximity, and overall organization of biological specimens in a near‐native state, avoiding artifacts of fixation and ...
M. Neal Waxham, Mihir Relan, Matthew T. Swulius, Andrea K. H. Stavoe   +3 more
wiley   +1 more source