Results 81 to 90 of about 13,306 (305)

Experimental Analysis of Alternate Refrigerant Mixtures in Refrigeration System

E3S Web of Conferences
This study focuses on conducting experimental analyses to assess the impact of alternative refrigerant blends within a vapor compression refrigeration system, with the aim of replacing the existing R134a refrigerant. These refrigerant blends are formulated by combining R600a, R1270, and R290 in four distinct mixing ratios.
R Ragavendiran, A Gowrishankar, Hussaini M Mohammadha, G Ravivarman, K N Gunasekaran, Uday Kiran Kasi, R Girimurugan   +6 more
openaire   +2 more sources

Microfluidic Engineering of Chitosan‐Coated Nanoemulsions for Controlled Release and Stability in Space Pharmaceutics

Advanced Materials Technologies, EarlyView.
Microfluidic engineering enables the fabrication of chitosan‐coated, melatonin‐loaded nanoemulsions with controlled release and enhanced physicochemical stability for space pharmaceutics. Interfacial biopolymer coating modulates droplet behavior under accelerated thermal stress and simulated microgravity.
Modupe Adebowale, Nguyen Van Duc Long, Philip M Williams, Volker Hessel   +3 more
wiley   +1 more source

Energy, Exergy, and Environmental Performance Analysis of Vapor Compression Cooling Systems Using New Generation Refrigerants as Alternatives to R404A and R410A

Düzce Üniversitesi Bilim ve Teknoloji Dergisi
This study comprehensively analyses the energy, exergy, and environmental performance of alternative low GWP refrigerants used to replace R404A and R410A refrigerants, with high global warming potential (GWP), in vapor compression cooling systems.
Ragıp Yıldırım, Bariş Çelik, Erkan Dikmen   +2 more
doaj   +1 more source

Screening of energy efficient technologies for industrial buildings' retrofit [PDF]

, 2011
This chapter discusses screening of energy efficient technologies for industrial buildings ...
Fisher, Dan, Hand, Jon, Liesen, Richard, Wilson, Barry, Zhivov, Alexander   +4 more
core  

Retrofit of lower GWP alternative R449A into an existing R404A indirect supermarket refrigeration system [PDF]

, 2017
R404A is going to be phased out from most of the commercial refrigeration systems due to its high GWP value of 3943. R449A (GWP of 1282) has been proposed to replace R404A with only minor system modifications in supermarkets.
Khodabandeh, Rahmatollah, Makhnatch, Pavel, Mota-Babiloni, Adrián, Rogstam, Jörgen   +3 more
core   +1 more source

Refractive indices of fluids related to alternative refrigerants

Journal of Research of the National Institute of Standards and Technology, 1994
As part of a comprehensive program to develop suitable methods of chemical analysis for alternative refrigerants and their products, we have compiled a database of spectral, chromatographic, and physical property data that can aid in compound identification.
Bruno, Thomas J., Wood, Marcelo A., Hansen, Brian N.   +2 more
openaire   +2 more sources

Chemically Doped Conductive Polymers for Wearable Health Monitoring

Advanced Materials Technologies, EarlyView.
Among conductive polymers, poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), polyaniline (PANI), and polypyrrole (PPy) are the most studied and applied. Chemical doping significantly boosts intrinsic conductivity and mechanical robustness.
Mengdi Zuo, Jian Song, Hong Hu, Le Zheng, Lei Zhang, Charles H. Lawrie   +5 more
wiley   +1 more source

Flow condensation heat transfer coefficient and pressure drop data for R134a alternative refrigerants R513A and R450A in a 0.95-mm-diameter minichannel. [PDF]

Data Brief, 2022
Morrow JA, Derby MM.
europepmc   +1 more source

General method for prediction of thermal conductivity for well-characterized hydrocarbon mixtures and fuels up to extreme conditions using entropy scaling [PDF]

, 2019
A general and efficient technique is developed to predict the thermal conductivity of well-characterized hydrocarbon mixtures, rocket propellant (RP) fuels, and jet fuels up to high temperatures and high pressures (HTHP).
Akhmedova-Azizova, Arcoumanis, Arikol, Ashutosh Gupta, Assael, Assael, Assael, Assael, Assael, Baroncini, Baroncini, Baroncini, Baroncini, Battistoni, Briggs, Burgess, Chickos, Chung, Chung, Deng, Fareleira, Fareleira, Fouad, Gharagheizi, Gharagheizi, Gharagheizi, Giannadakis, Gross, Guo, Hopp, Houman B. Rokni, Huber, Huber, Huber, Jia, Joshua D. Moore, Kashiwagi, Kesler, Lashkarbolooki, Latini, Latini, Lazzús, Liang, Lötgering-Lin, Manolis Gavaises, Mark A. McHugh, Mathias, Nagvekar, Park, Pomraning, Rajendar R. Mallepally, Ramos-Pallares, Ramos-Pallares, Rastorguev, Rodenbush, Rokni, Rokni, Rosenfeld, Roy, Sastri, Sauer, Schilling, Schmidt, Stiel, Tamouza, Teja, Teja, Thi, Tihic, Wada, Wakeham, Wu, Xu   +72 more
core   +1 more source

Tunable 3D‐Printed Static Mixers for Gradient Bioprinting With High Cell Viability

Advanced Materials Technologies, EarlyView.
ABSTRACT The fabrication of native tissue‐like structures with gradual transitions in material properties, cell types, and growth factors remains a major challenge in biofabrication due to the lack of suitable methods. Mimicking the hierarchical organization of living tissues is essential for functional models, yet creating gradient, multimaterial ...
Florian Hofmann, Jessica Faber, Franz Moser, Alessandro Cianciosi, Nicoletta Murenu, Joachim Schenk, Katrin G. Heinze, Natascha Schaefer, Silvia Budday, Tomasz Jungst   +9 more
wiley   +1 more source