Experimental setup with automatic control. High pressure VLE data of binary systems 2–Butanol with n–Heptane and 2,2,4–Trimethylpentane at both 1.5 MPa and 2.0 MPa

The Newtonian mixing rules for several binary systems have been experimentally investigated. Some systems show non-ideal mixing response and for some systems the non-ideal response is pressure-dependent, yielding an opportunity for manipulation of the pressure-viscosity behavior to advantage. The mixing of differing molecular weight “straight cuts” can produce very different pressure-viscosity response. This behavior underscores the difficulty in predicting the pressure-viscosity coefficient based upon chemical structure and ambient viscosity since the molecular weight distribution is also important, but it also provides another opportunity to control the high-pressure response by blending. The first experimental observation of double shear-thinning within a single flow curve is reported. Blending then provides the capability of adjusting not only the Newtonian viscosity but also the non-Newtonian shear-thinning response as well.

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High pressure densities of carbon dioxide+dipentaerythritol hexaheptanoate: New experimental setup and volumetric behavior

The Journal of Supercritical Fluids ◽

10.1016/j.supflu.2011.06.004 ◽

2011 ◽

Vol 58 (2) ◽

pp. 189-197 ◽

Cited By ~ 7

Author(s):

O. Fandiño ◽

L. Lugo ◽

J.J. Segovia ◽

E.R. López ◽

M.J.P. Comuñas ◽

...

Keyword(s):

Carbon Dioxide ◽

High Pressure ◽

Experimental Setup ◽

Volumetric Behavior

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New determinations of high pressure vapor-liquid equilibria in binary systems containing n-propylbenzene with nitrogen or carbon dioxide consistent with the prausnitz-keeler test.

Fluid Phase Equilibria ◽

10.1016/0378-3812(89)80371-1 ◽

1989 ◽

Vol 51 ◽

pp. 285-298 ◽

Cited By ~ 21

Author(s):

H. Renon ◽

S. Laugier ◽

J. Schwartzentruber ◽

D. Richon

Keyword(s):

Carbon Dioxide ◽

High Pressure ◽

Binary Systems ◽

Vapor Liquid Equilibria ◽

Vapor Liquid

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High-Pressure Vapor−Liquid Equilibria of Two Binary Systems: Carbon Dioxide + Cyclohexanol and Carbon Dioxide + Cyclohexanone

Journal of Chemical & Engineering Data ◽

10.1021/je960220l ◽

1997 ◽

Vol 42 (1) ◽

pp. 155-159 ◽

Cited By ~ 6

Author(s):

Serge Laugier ◽

Dominique Richon

Keyword(s):

Carbon Dioxide ◽

High Pressure ◽

Binary Systems ◽

Vapor Liquid Equilibria ◽

Vapor Liquid

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Design and Fabrication of an Experimental Facility for High-Pressure Pool Boiling

Volume 2: Simple and Combined Cycles; Advanced Energy Systems and Renewables (Wind, Solar and Geothermal); Energy Water Nexus; Thermal Hydraulics and CFD; Nuclear Plant Design, Licensing and Construction; Performance Testing and Performance Test Codes; Student Paper Competition ◽

10.1115/power2014-32107 ◽

2014 ◽

Author(s):

Nanxi Li ◽

Amy Rachel Betz

Keyword(s):

Heat Transfer ◽

High Pressure ◽

Pool Boiling ◽

Future Research ◽

Experimental Setup ◽

Transfer Coefficients ◽

Structured Surfaces ◽

Advantages And Disadvantages ◽

System Pressure ◽

Coated Surfaces

In this work, we present the design and fabrication a high-pressure pool boiling facility to conduct pool boiling experiments on horizontal heated surfaces under elevated pressures, up to 20 bar. Previous research has shown that micro- and/or nano-structured surfaces and coated surfaces will increase heat transfer coefficients up to one order of magnitude at atmospheric pressure. However, most boiling applications are subjected to high pressure, especially in the power industry. Pressure inside a boiling water reactor in a nuclear power plant will reach as high as 75 atm (75.99 bar). In order to determine how heat transfer is enhanced at increased pressures, with deionized water and refrigerants, on modified surfaces, a special experimental setup needs to be designed and fabricated. Difficulties in making such an experimental setup come from stabilizing the system pressure, sealing the test setup and visualizing the boiling conditions in the vessel. Both advantages and disadvantages of this design will be discussed and possible methods for improvements will be proposed. Preliminary test results on a plane copper surface are also included. Future research will be focusing on boiling of water and refrigerants on micro-structured copper surfaces, graphene coated, and Teflon© coated surfaces under high pressure.

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