17. Two simple correlations for nucleate flow boiling (subcooled and saturated) of water at 500 psia < P< 1000 psia are given by Jens-Lottes and by Thom-1966. These correlations in British units are: 4" /1.E6= Exp(4P/900)AT, / 60ª ġ" /1.E6=Exp(2P/1260)AT, / 72* where ġ" is in Btu/hr-ft, P is in psia, and T is in F. These correlations in SI units Jens-Lottes: sat Thom: %3D sat become: 4" /1.E6= Exp(4P/6.2)AT / 254 4" /1.E6= Exp(2P/8.7)AT / 22.7* Jens-Lottes: %3D sat Thom: %3D sat where ġ" is in W/m², P is in MPa, and T is in C. Use these correlations to com- pare the results with the Chen correlation for P = 800 psia, ATgat = 10 F, and steam quality equal to 0.1. %3D

17. Two simple correlations for nucleate flow boiling (subcooled and saturated) of water at 500 psia < P< 1000 psia are given by Jens-Lottes and by Thom-1966. These correlations in British units are: 4" /1.E6= Exp(4P/900)AT, / 60ª ġ" /1.E6=Exp(2P/1260)AT, / 72* where ġ" is in Btu/hr-ft, P is in psia, and T is in F. These correlations in SI units Jens-Lottes: sat Thom: %3D sat become: 4" /1.E6= Exp(4P/6.2)AT / 254 4" /1.E6= Exp(2P/8.7)AT / 22.7* Jens-Lottes: %3D sat Thom: %3D sat where ġ" is in W/m², P is in MPa, and T is in C. Use these correlations to com- pare the results with the Chen correlation for P = 800 psia, ATgat = 10 F, and steam quality equal to 0.1. %3D

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter11: Calibrating Instruments

Section: Chapter Questions

Problem 4RQ: Temperature-measuring instruments may be designed to measure the temperature of vapors, ________,...

See similar textbooks

Similar questions

2.23- Water is at 20 °C and the pressure is lowered until boiling is observed. What is the pressure? from Engineering fluid mechanics 11th
When does boiling occur in a fluid? Briefly state Pascal's Law?
What is the pressure on a pure water surface if it starts to boil at a temperature of 110C. (Answer 1777.2mb)Show every step
2.22- What is the gage pressure within a d = 2.0 mm spherical droplet of water? 2.23- Water is at 20 °C and the pressure is lowered until boiling is observed. What is the pressure? from Engineering fluid mechanics 11th
A core was mounted in a gas permeameter to measure permeability. Determine the liquid permeability (mD) of the core using gas (in oilfield units). The laboratory data are as follows: Diameter of the core = 3.78 cm -----> (ft) Length of the core = 7.63 cm ---------> (ft) Gas viscosity = 0.0148 cP Flow rate = 9.07 cm3/s -----------------> (bbl/day) P1 = 1.439 atm ----------------------------> (psi) P2 = 1.086 atm ---------------------------> (psi)
Q9: The flash point of an engine oil is 363°F. What is the absolute flash-point temperature in K and R?
Enumerate and explain each briefly the FOUR (4) Properties of the Bernoulli Process.
Calculate its normal boiling point (in Kelvins). Write answer in THREE SIGNIFICANT FIGURES
Temperature-measuring instruments may be designed to measure the temperature of vapors, ________, and________.
What is the relationship between pressure and the boiling point of liquids?
Derived the general formula of Capillary Pressure.
2. Use the compressibility charts to calculate the temperature of SO2 in a 5 ft3 rigid tank containing 50 lbm of SO2 at 66.1 atm absolute pressure. The following physical properties of SO2 may be helpful. Molecular Weight 64.07 ,Critical Temp. 430.7 K ,Critical Pressure 77.8 atm, Normal boiling point 263.14 K.