Solution:
From data table and P-h chart.
State | P(psia) | T(oF) | v(ft3/lbm) | x(quality) | Phase description |
A | 10 | -29 | 2.800 | 0.642 | Vapor+Liquid |
B | 60 | 40 | -- | 0 | Subcooled Liquid |
C | 100 | 79.17 |
0.06984 0.47478 |
0 1 |
Saturated Liquid Saturated Vapor |
D | 180 | 140 | 0.28528 | 1 | Superheated Vapor |
Using the attached property data attached, for R-134a, fill in the following table wherever possible. If...
Complete the following table for refrigerant-134a. If the quality is not defined for a current phase (for example, compressed liquid or superheated vapor) write in the corresponding cell: 1000000 (sorry, moodle bug) P, psia T, OF h, Btu/lbm Phase description 80 78 15 0.6 70 10 129.46 180 110 1.0 Check 41 Complete the following table for refrigerant-134a. If the quality is not defined for a current phase (for example, compressed liquid or superheated vapor) write in the corresponding cell:...
1. Fill in the following table for R-134A: T(°F) P (psia) h (Btu/Ibm) Phase 70 150 70 Sat Liquid 108.8 2. What is the pressure inside a 420 L container if it contains 8.5 kg of air at 25 °C? The atmospheric pressure for that day is 97 kPa. 3. 1.8 kg of Nitrogen fills a piston chamber with a volume of 0.038 m’ at 560 kPa gauge. The piston is then moved so that the volume doubles. The chamber...
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10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...