Results 131 to 140 of about 363,458 (284)

Charge Reduction Potentials of Several Refrigerants Based on Experimentally Validated Micro-Channel Heat Exchangers Performance and Charge Model

, 2012
This paper presents an experimentally validated simulation model developed to obtain accurate prediction of evaporator microchannel heat exchanger performance and charge.
Padilla Fuentes, Yadira, Hrnjak, Predrag S.   +1 more
core  

Prediction of pressure drop during evaporation of R407C in horizontal tubes using artificial neural networks

, 2018
This work presents a discussion on pressure drop of R-407C during two-phase flows, and the application of artificial neural network (ANN) to predict these pressure drops in a smooth copper tube, for 4.5 mm and 8.0 mm inner diameter.
Machado, Luiz, Luiz Machado, Juan Jose Garcia, José Bermúdez, Bermúdez, José, Garcia, Juan Jose, Franklin Garcia, Garcia, Franklin   +7 more
core   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source

ON PRESSURE DROP THROUGH BRANCHED DUCTS

Yanbu Journal of Engineering and Science, 2012
Bahgat K. Morsy, Fahad Al-Mufadi, A. E. Abdelraheim   +2 more
doaj   +1 more source

Pressure Drop of Respirable Dust Cyclone Samplers

International Journal of Occupational Hygiene, 2019
The measure of volumetric flow rate is utilized to calculate sampling volume and airborne concentration in integrated air sampling. Consequently, calibration of the sampling train to verify volumetric flow rate is critical.
Leshan J Kimbrough, Crescente E Figueroa, Jillian C Stupiansky, Savannah R Jones   +3 more
doaj  

Two-phase flow boiling in small to micro-diameter tubes

, 2008
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis is dedicated to the experimental and theoretical study of flow boiling in small to micro diameter tubes using R 134a.
Shiferaw, Dereje
core  

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source

In-tube Evaporation Pressure-drop Characteristics of R290 and R404A

Zhileng xuebao, 2006
The experimental results of in-tube evaporation pressure-drop of R290 and R404A in the horizontal smooth tube and the horizontal microfin tube were compared with calculation results by Lockhart & Martinelli pressure-drop correlation,respectively.Moreover,
韩晓霞, 南晓红, 刘咸定
doaj   +2 more sources

Electrochemical Evaluation of Compressed Selective Laser Melted AlSi7Mg and AlSi10Mg Alloys in Chloride Environment

Advanced Engineering Materials, EarlyView.
The corrosion performance of AlSi7Mg and AlSi10Mg alloys produced through selective laser melting (SLM) was examined under compressive stress in a chloride environment. Electrochemical analyses, including open‐circuit potential (OCP), potentiodynamic polarization (CPP), and electrochemical impedance spectroscopy (EIS), were complemented by scanning ...
Femi John Akinfolarin, Samson Dare Oguntuyi, Peter Apata Olubambi   +2 more
wiley   +1 more source

Preparation of fluffy bimodal conjugated electrospun poly(lactic acid) air filters with low pressure drop. [PDF]

RSC Adv, 2023
Lin M, Shen J, Wang B, Chen Y, Zhang C, Qi H.   +5 more
europepmc   +1 more source