Results 41 to 50 of about 3,003 (225)
Numerical Simulation of the Condensation Flow of the Isobutane (R600a) inside Microchannel
Heat Transfer Engineering, 2021 A numerical investigation of the condensing flow of isobutane inside microchannel has been performed.
Başaran, Anıl +2 more
openaire +3 more sources
Simulation study on performance of a dual-source hybrid heat pump unit with alternative refrigerants
Energy and Built Environment, 2020 To solve the problems of single heat source heat pump systems in severe cold regions, a dual-source hybrid heat pump unit (DSHHPU) is proposed. The mathematical models of the DSHHPU when charging R134a or its alternative refrigerants R32, R290 and R600a ...
Chenguang Bai +5 more
doaj +1 more source
Efficiency increase in carbon dioxide refrigeration technology with parallel compression [PDF]
, 2016 In this article, we will review the comparison between a CO2 refrigeration system with a parallel compressor and a conventional carbon dioxide refrigeration machine.
Brügger, Matthias +3 more
core +1 more source
Revista UIS IngenieríasEste estudio presenta la evaluación del desempeño energético y ambiental de bombas de calor aire-agua que utilizan refrigerantes naturales (R600a/R744 y R600a/R290 en configuración en cascada, y R600a en configuración de una sola etapa), para la ...
Darwin Moreno-Bernal +2 more
doaj +1 more source
EXPERIMENTS DURING FLOW BOILING OF A R22 DROP-IN: R422D ADIABATIC PRESSURE GRADIENTS [PDF]
, 2009 R22, the HCFC most widely used in refrigeration and air-conditioning systems in the last years, is phasing-out. R422D, a zero ozone-depleting mixture of R125, R134a and R600a (65.1%/31.5%/3.4% by weight, respectively), has been recently proposed as a ...
A. Rosato +3 more
core +1 more source
International Journal of ThermofluidsThe effects of copper oxide (CuO) nanoparticles and Polyalphaolefin (PAO) lubricating oil on the thermophysical transport parameters of R600a (isobutane) and its flow boiling heat transfer coefficient are evaluated in this work using semi-empirical ...
Fernando Toapanta-Ramos +1 more
doaj +1 more source
Experimental performance of LPG refrigerant charges with varied concentration of TiO2 nano-lubricants in a domestic refrigerator [PDF]
, 2017 This article present an experimental investigation of varied mass charges of Liquefied Petroleum Gas (40 g, 50 g, 60 g and 70 g) enhanced with varied TiO2 nanoparticle/mineral oil concentrations (0.2 g/L, 0.4 g/L and 0.6 g/L nanolubricants) in a R134a ...
Damilola C. Badejo +6 more
core +2 more sources
Energy Science &Engineering, EarlyView.The explosion hazard of TBP and kerosene mixed vapor in the nuclear fuel reprocessing process is studied. The results enrich the explosion characteristics and explosion limits of TBP‐kerosene, and provide reference value and basis for the safety setting of the operation process and operating environment of nuclear fuel reprocessing plants ABSTRACT As ...
Pincong Wu +6 more
wiley +1 more source
Asia-Pacific Journal of Chemical Engineering, Volume 21, Issue 2, March/April 2026.ABSTRACT The growing impacts of climate change and energy scarcity demand environmentally sustainable refrigeration solutions. This study investigates eco‐friendly refrigerants (R152a, R290 and R600a) and their optimized ternary mixture as alternatives to R134a. Four blend compositions were analysed using experimental testing and REFPROP 10.0 modelling
M. Periyasamy, P. Senthilkumar
wiley +1 more source
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