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Solar EnergyAn Introduction$

Michael E. Mackay

Print publication date: 2015

Print ISBN-13: 9780199652105

Published to Oxford Scholarship Online: August 2015

DOI: 10.1093/acprof:oso/9780199652105.001.0001

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(p.217) B Physical Properties

(p.217) B Physical Properties

Source:
Solar Energy
Author(s):

Michael E. Mackay

Publisher:
Oxford University Press

(p.218)

B Physical Properties

Fig. B.1 Various properties of liquid water including: viscosity (μ‎, ●), density (ρ‎, ∘), heat capacity (Cp, ), thermal conductivity (k, ), a group of parameters used in the calculation of the Rayleigh number (Ra=[gχρ2Cp/kμ]ΔTL3CRaΔTL3, see the text for the definition of the parameters used to determine CRa, ) and the Prandtl number (Pr, Δ). The dimensions for each parameter are given in the equation and their magnitude on the graph can be ascertained by putting 0 °C in the equation. All the equations in the graph have the temperature T in °C.

Data are from J. R. Welty et al., ‘Fundamentals of momentum, heat and mass transfer,’ Third Edition, John Wiley & Sons (1984).

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B Physical Properties

Fig. B.2 Various properties of air including: viscosity (μ‎, ●), density (ρ‎, ∘), heat capacity (Cp, ), thermal conductivity (k, Δ), a group of parameters used in the calculation of the Rayleigh number (Ra=[gχρ2Cp/kμ]ΔTL3CRaΔTL3, see the text for the definition of the parameters used to determine CRa, ) and the Prandtl number (Pr, ). The dimensions for each parameter are given in the equation and their magnitude on the graph can be ascertained by putting 0 °C in the equation. All the equations in the graph have the temperature T in °C.

Data are from J. R. Welty et al., ‘Fundamentals of momentum, heat and mass transfer,’ Third Edition, John Wiley & Sons (1984).

(p.220)
B Physical Properties

Fig. B.3 Various properties of Therminol VP-1 including: viscosity (μ‎, ●), density (ρ‎, ∘), heat capacity (Cp, ), thermal conductivity (k, Δ), specific enthalpy (Hˆ, ) and the Prandtl number (Pr, ). The dimensions for each parameter are given in the equation and the temperature T is in °C. The symbols are data given by Solutia Inc. while the lines represent the correlations to the data.

Data are from the Dow Chemical Company.

(p.221)
B Physical Properties

Fig. B.4 Pressure–enthalpy (Mollier) diagram for water. Thick lines are isotherms (T, constant temperature) and thin lines, isentropes (S, constant entropy). The lines labeled %10, etc. are lines of constant quality which is a constant amount of gaseous water (vapor). The critical point is shown at the apex of the vapor–liquid envelope.

Data are from International Association for the Properties of Water and Steam.

(p.222)
B Physical Properties

Fig. B.5 Pressure–enthalpy (Mollier) diagram for n-Pentane. Thick lines are isotherms (T, constant temperature) and thin lines, isentropes (S, constant entropy). The critical point is shown at the apex of the vapor–liquid envelope.

Data are from Starling et al., ‘Geothermal binary-cycle working-fluid properties information,’ DOE Report # DOE/ID/01719–4.