Results 81 to 90 of about 13,565 (218)

Research advances of metal fluoride for energy conversion and storage

Carbon Energy, Volume 7, Issue 1, January 2025.
Renewable energy faces storage challenges. Metal fluorides' potential in energy conversion is examined. This review summarizes their characteristics, challenges, and improvements in batteries, supercapacitors, and water electrolysis. It guides future breakthroughs in metal fluoride applications for energy storage.
Runlin Zhang, Zijin Xu, Zeyu Hao, Zeshuo Meng, Xiufeng Hao, Hongwei Tian   +5 more
wiley   +1 more source

Vertical upward flow patterns in small diameter tubes [PDF]

, 2005
Two-phase flow patterns were studied in vertical small diameter tubes using R134a as the working fluid. The observed flow patterns include bubbly, dispersed bubble, confined bubble, slug, churn, annular and mist flow.
Chen, L, Karayiannis, TG, Tian, YS
core  

Flow boiling in a 1.1mm tube with R134a: Experimental results and comparison with model [PDF]

, 2007
A detailed comparison of the three-zone evaporation model, proposed by Thome et al. (2004), with experimental heat transfer results of two stainless steel tubes of internal diameter 4.26 mm and 2.01 mm using R134a fluid was presented by Shiferaw et al ...
Karayiannis, TG, Kenning, DBR, Shiferaw, D   +2 more
core   +1 more source

Flow boiling pressure drop of R134a in micro diameter tubes: Experimental results and assessment of correlations [PDF]

, 2011
This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
3rd Micro and Nano Flows Conference (MNF2011), Karayiannis, TG, Kenning, DBR, Mahmoud, MM   +3 more
core  

New Eco-gas mixtures for the Extreme Energy Events MRPCs: results and plans

, 2019
The Extreme Energy Events observatory is an extended muon telescope array, covering more than 10 degrees both in latitude and longitude. Its 59 muon telescopes are equipped with tracking detectors based on Multigap Resistive Plate Chamber technology with
Abbrescia, M., Avanzini, C., Baldini, L., Batignani, G., Battaglieri, M., Boi, S., Bossini, E., Carnesecchi, F., Chiavassa, A., Cicalo, C., Cifarelli, L., Coccetti, F., Coccia, E., Corvaglia, A., De Gruttola, D., De Pasquale, S., Fabbri, F. L., Ferroli, L. Baldini, Frolov, V., Galante, L., Galeotti, P., Garbini, M., Gemme, G., Gnesi, I., Grazzi, S., Gustavino, C., Hatzifotiadou, D., La Rocca, P., Mandaglio, G., Maron, G., Mazziotta, M. N., Miozzi, S., Nania, R., Noferini, F., Nozzoli, F., Palmonari, F., Panareo, M., Panetta, M. P., Paoletti, R., Park, W., Pellegrino, C., Perasso, L., Pilo, F., Piragino, G., Pisano, S., Riggi, F., Righini, G. C., Ripoli, C., Rizzi, M., Rodriguez, O. Maragoto, Sartorelli, G., Scapparone, E., Schioppa, M., Scribano, A., Selvi, M., Serci, S., Squarcia, S., Taiuti, M., Terreni, G., Trifirò, A., Trimarchi, M., Vistoli, M. C., Votano, L., Williams, M. C. S., Zheng, L., Zichichi, A., Zuyeuski, R.   +66 more
core   +1 more source

Experimental study on transcritical Rankine cycle (TRC) using CO2/R134a mixtures with various composition ratios for waste heat recovery from diesel engines [PDF]

, 2020
A carbon dioxide (CO2) based mixture was investigated as a promising solution to improve system performance and expand the condensation temperature range of a CO2 transcritical Rankine cycle (C-TRC).
Feng, W, Liu, P, Shi, L, Shu, G, Tian, H, Wang, X   +5 more
core   +1 more source

Comparative Research on Performances of R516A and R134a in Water-Cooled Chillers

Zhileng xuebao
R516A is one of the new substitutes for R134a refrigerant in water-cooled chillers. The COP (coefficient of performance) and discharge temperatures of R516A and R134a are compared through a single-stage vapor compression cycle. Under nominal and variable
Li Xiongya, Hua Xue, Guo Xiaolin
doaj  

Comparative evaluation of various GPS-free localization algorithm for wireless sensor networks [PDF]

, 2004
Wireless Sensor Networks (WSN) are tremendously being used in different environments to perform various monitoring tasks such as search, rescue, disaster relief, target tracking and a number of tasks in smart environments.
Musbahi, Amal Mustafa
core  

Experimental Investigation of Viscous Two-Phase Flow in Microchannels [PDF]

, 2005
Multi-port microchannel tubes are increasingly popular for use in a variety of heat transfer applications, primarily for automotive condensers and radiators, but also in a variety of refrigeration and air conditioning applications. These channels offer
Burr, J.D., Hrnjak, P.S., Newell, T.A.
core  

EXERGETIC PERFORMANCE OF A DOMESTIC REFRIGERATOR USING R12 AND ITS ALTERNATIVE REFRIGERANTS [PDF]

Journal of Engineering Science and Technology, 2010
Production and use of R12 and other chlorofluorocarbon refrigerants will be prohibited completely all over the world in the year 2010 due to their harmful effects on the earth’s protective ozone layer.
BUKOLA O. BOLAJI
doaj