The density of saturated liquid refrigerant134a for 20C T 100C is given in Table A
Question:
The density of saturated liquid refrigerant–134a for –20°C ≤ T ≤ 100°C is given in Table A– 4. Using this value develop an expression in the form ρ = aT2 + bT + c for the density of refrigerant–134a as a function of absolute temperature, and determine relative error for each data set.
Transcribed Image Text:
TABLE A-4 Properties of saturated refrigerant-134a Temp. T, "C -40 -35 84.4 1389 -30 -25 106.5 1374 -20 132.8 1359 0 5 Density p. kg/m³ 0 5 20 25 30 35 0 45 0 55 50 55 0 5 20 25 90 5 100 Saturation Pressure P, kPa Liquid Vapor -15 164.0 1343 -10 200.7 1327 243.5 -5 1311 293.0 1295 349.9 1278 10 51.2 1418 66.2 1403 414.9 1261 15 488.7 1244 572.1 1226 665.8 1207 770.6 1188 2.773 3.524 4.429 5.509 6.787 8.288 10.04 12.07 14.42 17.12 20.22 23.75 27.77 32.34 37.53 887.5 1168 40 1017.1 1147 87.38 1160.5 1125 50 1318.6 1102 1492.3 1078 60 1682.8 1053 65 1891.0 1026 100.4 70 2118.2 996.2 115.6 75 2365.8 964 133.6 80 2635.2 928.2 155.3 85 2928.2 887.1 182.3 3246.9 837.7 217.8 95 3594.1 772.5 269.3 3975.1 651.7 376.3 43.41 50.08 57.66 66.27 76.11 Enthalpy of Vaporization ki/kg 225.9 222.7 219.5 216.3 213.0 Specific Heat pJ/kg-K 168.2 163.0 157.6 Thermal Conductivity k, W/m-K Liquid Vapor Liquid Vapor 1254 748.6 0.1101 1264 764.1 0.1084 780.2 0.1066 209.5 1306 206.0 1318 202.4 1330 198.7 1344 194.8 1358 151.8 145.7 1273 1283 1294 0.00811 0.00862 0.00913 797.2 0.1047 0.00963 814.9 0.1028 0.01013 190.8 1374 943.2 0.0903 186.6 1390 969.4 0.0880 182.3. 1408 997.6 0.0856 177.8 1427 1028 0.0833 1061 0.0808 173.1 1448 833.5 0.1009 0.01063 853.1 0.0989 0.01112 873.8 0.0968 0.01161 895.6 0.0947 0.01210 918.7 0.0925 0.01259 1471 1498 1098 1138 1529 1184 1566 1237 1608 1298 1659 1372 1722 1462 1801 1577 1907 1731 2056 1948 0.01308 0.01357 0.01406 0.01456 0.01507 0.0783 0.01558 0.0757 0.01610 0.0731 0.01664 0.0704 0.01720 0.0676 0.01777 0.0647 0.01838 0.0618 0.01902 0.0587 0.01972 0.0555 0.02048 0.0521 0.02133 0.0484 0.02233 0.02357 0.02544 0.02989 139.1 132.1 124.4 115.9 106.4 95.4 2287 2281 82.2 2701 2865 0.0444 64.9 3675 4144 0.0396 33.9 7959 8785 0.0322 Dynamic Viscosity μ, kg/m-s Liquid 4.878 x 104 4.509 x 10-4 4.178 x 10 4 3.882 x 10 4 3.614 x 104 3.371 x 10-4 3.150 x 104 2.947 x 10-4 2.761 x 104 2.589 x 10-4 2.430 x 10-4 2.281 x 10-4 2.142 x 104 2.012 x 10-4 1.888 x 104 1.772 x 104 1.660 x 104 1.554 x 104 1.453 x 10-4 1.355 x 10-4 1.260 x 104 1.167 x 104 1.077 x 10-4 9.891 x 10-5 9.011 x 10-5 8.124 x 10-5 7.203 x 10 5 6.190 x 10-5 4.765 x 10-5 Vapor 2.550 x 10-6 3.003 x 10 3.504 x 10-6 4.054 x 10-6 4.651 x 10-5 5.295 x 10-6 5.982 x 10 6 6.709 x 10- 7.471 x 10-6 8.264 x 10- 9.081 x 10-6 9.915 x 10-6 1.075 x 10-5 1.160 x 10-5 1.244 x 10-5 1.327 x 10-5 1.408 x 10-5 1.486 x 10-5 1.562 x 10-5 1.634 x 10- 1.704 x 105 1.771 x 10-5 1.839 x 10-5 1.908 x 10-5 1.982 x 10-5 2.071 x 10-5 2.187 x 10 5 2.370 x 10-5 2.833 x 105 Prandtl Number Pr Volume Expansion Surface Coefficient Tension, B. 1/K N/m Liquid Liquid Liquid Vapor 5.558 0.235 0.00205 0.01760 5.257 0.266 0.00209 0.01682 4.992 0.299 0.00215 0.01604 4.757 0.335 0.00220 0.01527 4.548 0.374 0.00227 0.01451 0.00233 0.01376 4.363 0.415 4.198 0.459 0.00241 0.01302 4.051 0.505 0.00249 0.01229 3.919 0.553 0.00258 0.01156 3.802 0.603 0.00269 0.01084 3.697 0.655 0.00280 0.01014 3.604 0.708 0.00293 0.00944 3.521 0.763 0.00307 0.00876 3.448 0.819 0.00324 0.00808 3.383 0.877 0.00342 0.00742 3.328 0.935 0.00364 0.00677 3.285 0.995 0.00390 0.00613 3.253 1.058 0.00420 0.00550 3.231 1.123 0.00456 0.00489 3.223 1.193 0.00500 0.00429 0.00554 0.00372 0.00624 0.00315 3.229 1.272 3.255 1.362 3.307 1.471 0.00716 0.00261 3.400 1.612 0.00843 0.00209 3.558 1.810 0.01031 0.00160 3.837 2.116 0.01336 0.00114 4.385 2.658 0.01911 0.00071 5.746 3.862 0.03343 0.00033 11.77 8.326 0.10047 0.00004
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 50% (2 reviews)
To develop an expression in the form aT2 bT c for the density of refrigerant134a as a function of ab...View the full answer
Answered By
Aditya Raj
I tutored mostly elementary school students privately after school and during the summer. We met in their homes or at the public library. I charged an hourly fee, and I provided any necessary materials.
Having taught in special education in two local schools for many years meant that I had contact with a lot of parents of special needs students. I never had to advertise — word of mouth was how most folks knew of me. At one point I did have a website, but didn't utilize it much. I stayed very busy, especially in the summers, and always had a full schedule. I typically met with each student's teacher in order to get an idea of what the focus of my instruction/remediation should be. Becoming familiar with the student's learning style(s) was also very helpful. Often parents would share records and test results with me. After each tutoring session, I documented the student’s progress and gave parents written updates, as well as phone calls or emails as needed.
0.00
0 Reviews
10+ Question Solved
Related Book For
Fluid Mechanics Fundamentals And Applications
ISBN: 9780073380322
3rd Edition
Authors: Yunus Cengel, John Cimbala
Question Posted:
Students also viewed these Engineering questions
-
The density of water for 0C < T < 100C is given in Table A-1. Fit this data to a least-squares parabola, = a + bT + cT2, and test its accuracy vis-a-vis Table A-1.Finally, compute at T = 45C and...
-
2) Suppose that f(x) = 5x -5 and g(x) = -4x+4 @Solve f(x) = 0 b) Solve f(x) >0 c) Solve f(x) = g(x) e) Graph y = f(x) and that represents the f(x) g(x) = (d) Solve p(x) g(x) points y = g(x) and label...
-
How would they determine their cost savings? A) Multiply the direct materials cost per equivalent unit by the percentage of decrease. B) Multiply the cost per equivalent unit by the number of units...
-
Correction, overproduction, inventory and motion are all examples of: a. Waste b. 5 S target areas c. Noise d. Value-added activities
-
In diving to a depth of 750 m, an elephant seal also moves 460 m due east of his starting point. What is the magnitude of the seals displacement?
-
Consider a model in which individuals live for two periods and have utility functions of the form U = ln(C 1 ) + ln(C 2 ). They earn income of $100 in the first period and save S to finance...
-
Describe the procedure for examining a hypothesis related to proportions of two independent samples.
-
Burgundy, Inc., and Violet Gomez are equal partners in the calendar year BV LLC. Burgundy uses a fiscal year ending April 30, and Violet uses a calendar year. Burgundy receives an annual guaranteed...
-
Mass Load Deflection Area Shear stress Strain Shear modulus Kg N m m^2 t(Pa) rads Pa 0.1 0.981 0.00002 0.0005376 1824.777 0.0004 4561941.964 0.204 2.001 0.00005 0.0005376 3722.545 0.001 3722544.643...
-
Vicki's Fabric Store shows the trial balance on page 603 as of December 31, 20-1. At the end of the year, the following adjustments need to be made: (a and b) Merchandise inventory as of December 31,...
-
The air in an automobile tire with a volume of 2.60 ft 3 is at 90F and 20 psig. Determine the amount of air that must be added to raise the pressure to the recommended value of 30 psig. Assume the...
-
What is the specific volume of oxygen at 40 psia and 80F?
-
How does a bank make a profit on loans? Discuss the importance of loans in attracting a borrowers other business with a financial institution.
-
On July 3, the Ge orge Textile corporation closed at $96.25. This was a $1.23 increase from the close the day before. What percent change is this ?
-
The shareholders of an older established company expect a 10% return, while the company itself reports that it expects to be able to invest in projects with a 12% return in the future.The board of...
-
If SM Ltd.'s current dividend is $1 and the company is reducing dividends by 1% per year, what should the price of the stock be with a cost of capital of 8%
-
comparing working capital of service and manufacturing or retail firms, which one has more cash and cash equivalents? Which one of the companies do you think that it has more tendency or propensity...
-
GMM Inc. has a beta of 1.2. The market risk premium is currently 7%, and the return on treasury bills is 4%. What is the best estimate of GMM's cost of equity?
-
An issue that arises when designing a welfare system is whether to make the benefits available to all low-income families with children or only to families headed by a single mother. Explain the...
-
What is the role of business risk analysis in the audit planning process?
-
An FM modulator has f c = 2000 Hz and f d = 20 Hz/V. The modulator has input m(t) = 5 cos[2(10)t]. (a) What is the modulation index? (b) Sketch, approximately to scale, the magnitude spectrum of the...
-
An audio signal has a bandwidth of 15 kHz. The maximum value of |m(t)| is 10 V. This signal frequency modulates a carrier. Estimate the peak deviation and the bandwidth of the modulator output,...
-
By making use of (4.30) and (4.39), show that 0 )-1 n=-00
-
At the beginning of the year four years ago, Mountain View Company purchased construction equipment for $912,600, with a useful life of eight years and estimated salvage value of $99,000. The company...
-
As a marketing manager, how did countries use Global Marketing strategies to regain the confidence and interest of consumers?
-
How do considerations of aesthetics, symbolism, and cultural representation intersect in the design and execution of community murals, particularly in multicultural and multiethnic contexts?
Study smarter with the SolutionInn App