Results 41 to 50 of about 1,949,528 (281)

Experimental Study of PVTx Properties about Mixture Refrigerant R1234yf/R32

open access: yesZhileng xuebao, 2016
In order to get the thermophysical properties of mixed refrigerants R1234yf/R134a, the PVT properties of mixture refrigerant R1234yf/R32 with mass fraction 15%/85%, 25%/75% in the range of 253-313 K were measured by using high-precision PVTx apparatus ...
Chen Rishuai, Qi Yingxia, Wu Dong
doaj   +2 more sources

Development of Performance Test Facility of Positive Displacement CO2 Refrigerant Compressor [PDF]

open access: yes, 2012
Due to the transcritical nature, some of the test methods used in the conventional subcritical refrigeration cycle, such as the liquid refrigerant flow metering method and the water-cooled condenser metering method, are no longer appropriate for ...
Wang, Rujin   +4 more
core   +1 more source

Experimental Investigation on a Miniature Mixed Refrigerant J-T Refrigerator Driven by a Mini-Compressor

open access: yesZhileng xuebao, 2013
The cool-down performance of a miniature mixed refrigerant J-T refrigerator was experimentally investigated. A miniature mixed refrigerant J-T refrigerator driven by an Aspen mini-compressor was developed, and preliminary test results were presented. The
Yan biao, Gong maoqiong, Wu jianfeng
doaj  

Deformation‐Tolerant Functional Elastomer Overlayers for Haze‐Assisted Light Extraction and Color Conversion in Stretchable Mechanoluminescent Films

open access: yesAdvanced Functional Materials, EarlyView.
Functional elastomer overlayers are integrated onto stretchable ZnS:Cu‐PDMS mechanoluminescent films to regulate light after emission without modifying the emissive composite. NLC‐PU provides haze‐assisted light extraction to enhance green mechanoluminescence, while DCM‐NLC‐PU combines green‐to‐yellow‐orange color conversion with enhanced outward light
Gyudam Jeon   +3 more
wiley   +1 more source

Modeling and Experimental Analysis of Two-Phase Recuperation Heat Transfer in Systems Using Mixed-Refrigerant

open access: yesEnergies
Efficient heat recuperation is one of the most critical factors influencing the performance of mixed-refrigerant Joule–Thomson (MR JT) cryocoolers.
Zbigniew Rogala   +3 more
doaj   +1 more source

Protein‐Polymer Dynamic Hydrogels Utilizing Native Ligand Binding for Injectable Therapeutic Delivery and 3D Printing

open access: yesAdvanced Healthcare Materials, EarlyView.
Dynamic nanocolloidal hydrogels were synthesized via the co‐assembly of ligand‐modified spheroidal hyperbranched poly(glycerol) (HPG) and soluble albumin nanoparticles (SANs). Co‐assembly occurred through self‐association of the HPG, as well as its interaction with SANs via native ligand binding.
S. Cem Millik   +9 more
wiley   +1 more source

Numerical Simulation of Minichannel and Microchannel Evaporators with Headers and Louvered Fins— Investigating the Thermal-Hydraulic Performance of New Refrigerant Mixtures [PDF]

open access: yes, 2012
The need for more compact and more efficient heat exchangers in the aerospace, automotive, and HVAC&R industries has led to the development of heat exchangers that utilize minichannel or microchannel tubes coupled with louvered fins.
Ramalingam, Mysore   +3 more
core   +1 more source

Improving the energy effectiveness of domestic refrigerators by the application of mixed refrigerants [PDF]

open access: yes, 1978
A critical review of U.S. and foreign literature on the use of a mixture of refrigerants rather than a single one in a refrigeration unit indicates that energy can be conserved in properly arranged systems. An independent analytical study performed under the current contract using a 50% mixture of R-12 and R-114 in a two-evaporator refrigerator typical
openaire   +2 more sources

Development of rectifying circuit with mixed refrigerants

open access: yesInternational Journal of Refrigeration, 1989
The use of mixed refrigerants for heat pump cycles has attracted the attention of the International Energy Agency as an important aspect of heat pump technology, and research and development activities in this area are being promoted all over the world.
Yoshida, Y.   +4 more
openaire   +2 more sources

Experimental and analytical investigation of refrigerant and lubricant migration [PDF]

open access: yes, 2010
The off-cycle refrigerant mass migration has a direct influence on the on-cycle performance since compressor energy is necessary to redistribute the refrigerant mass.
Peuker, Steffen
core  

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