Results 71 to 80 of about 47,567 (258)

Research on the oscillating flow and heat transfer of the cooling gallery inside a multi-material composite piston

Case Studies in Thermal Engineering
The heat transfer ability of cooling gallery inside high-strengthened diesel engine composite piston is highly required. This article established an oscillating heat transfer model for gas-liquid two-phase flow of cooling gallery.
Haixiang Yang, Jilin Lei, Chunming Wang, Fanghao Sun, Xiwen Deng, Jun Wen, Xiangsen Jiang   +6 more
doaj   +1 more source

THE INFLUENCE OF CROSS-PROFILING OF THE INTAKE AND EXHAUST PIPES OF PISTON ENGINES ON THERMAL AND MECHANIC FLOW

Известия высших учебных заведений: Проблемы энергетики, 2017
The main tasks of experimental research of thermal and mechanic processes in the intake and exhaust systems of piston internal combustion engines are to assess the impact of the configuration of pipes on the intensity of local heat transfer and the ...
L. V. Plotnikov, B. P. Zhilkin, Y. M. Brodov   +2 more
doaj   +1 more source

High frequency pressure oscillator for microcryocoolers [PDF]

, 2008
Microminiature pulse tube cryocoolers should operate at a frequency of an order higher than the conventional macro ones because the pulse tube cryocooler operating frequency scales inversely with the square of the pulse tube diameter.
H. J. Holland, H. J. M. ter Brake, H. V. Jansen, J. F. Burger, Jhabvala M., Lerou P. P. P. M., M. C. Elwenspoek, Marquardt E. D., Radebaugh R., S. Vanapalli, Timoshenko S. P., Y. Zhao   +11 more
core   +2 more sources

Operando X‐Ray Diffraction and Total Scattering Characterization of Battery Materials: Not Just a Pretty Picture

Advanced Energy Materials, EarlyView.
This review focuses on operando studies of battery materials by X‐ray diffraction (XRD) and total X‐ray scattering (TXS). This work highlights potential pitfalls and identify best‐practices for operando studies and reviews some unusual experiments to illustrate how these methods can be applied beyond the evaluation of the early‐stage cycling mechanisms
Amalie Skurtveit, Eira Tiberg North, Izar Capel Berdiell, Wouter Van Beek, David S. Wragg, Alexey Y. Koposov   +5 more
wiley   +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

Assessment of the necessity of cooling of the Stirling engine expansion piston [PDF]

, 2009
Heat balance of the Stirling engine expansion piston is investigated. This balance considers heat flows that are applied to the expansion piston from outside parts, generated by friction in the piston-liner contact zone, and rejected to the cooling ...
Stefanovsky, A. B.
core  

Spectral Properties of Blast Wave Models of Gamma-Ray Burst Sources

, 1993
We calculate the spectrum of blast wave models of gamma-ray burst sources, for various assumptions about the magnetic field density and the relativistic particle acceleration efficiency.
Meszaros, P., Papathanassiou, H., Rees, M. J.   +2 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

TECHNOLOGICAL PECULIARITIES OF PRODUCTION OF PISTONS FOR HIGH-POWERED ENGINES

Литьë и металлургия, 2009
The paper present the results obtained when investigating fabrication of castings for pistons of high-augmented diesel internal combustion engine. The optimum casting parameter ranges are determined.
M. A. Sadoha, A. T. Volochko, V. V. Ovchinnikov   +2 more
doaj  

Analysis of the effect of cylinder wall thickness on the characteristics of a single-stage long-stroke refrigerating compressor [PDF]

Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение"
The article examines thermodynamic characteristics of a single-stage, low-speed, long-stroke piston refrigeration compressor with a linear drive. Theoretical studies are conducted using a method for calculating the actual operating process of a single ...
V. L. Yusha, S. S. Busarov, A. V. Grekhnev   +2 more
doaj   +1 more source