Refrigerant HFC-134a as the working fluid (the P-h chart is attached to this activity look at page 3) Ideal cycle operation condition is assumed Cycle is operated at high pressure line of 0.8 MPa Cycle is operated at low temperature line of – 10° C Flow rate is 0.1 kg/sec

Refrigerant HFC-134a as the working fluid (the P-h chart is attached to this activity look at page 3) Ideal cycle operation condition is assumed Cycle is operated at high pressure line of 0.8 MPa Cycle is operated at low temperature line of – 10° C Flow rate is 0.1 kg/sec

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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26. The nitrogen gas a volume of 25.4ml in a tube at a 18°C and a pressure of 781mmHg. The next day the volume of the nitrogen was 26.2mL with the barometer still reading 781mmHg. What was the temperature on the second day? a. 67.3915°C b. 27.1701°C c. 52.8385°C d. 68.5611°C 27. A crystal of a chemical sodium weighs 6.48g in air and 2.83g when immersed in a fluid having a specific gravity of 0.868. What is the density of this element? a. 1.5718g/cm³ b. 1.5623g/cm³ c. 1.5321g/cm³ d. 1.5410g/cm3 28. A 5.2m³ container contains 72 % of methane and 28% of nitrogen gas mixture with an equal mass of 0.5kg. Find the pressure at 30°C. a. 26.0386kPa b. 24.8829kPa c. 26.5320kPa d. 25.0372kPa 29. An electric stove having a rating of 3kW is use to boil a 10Li of tap water (Initially at 20°C and whose density at this temperature is 1050kg/m³). If useful energy is around 76% of the total energy supplied by the stove. Determine how long would it take to vaporized all the water in the pan. a. 3.2hours…
Formül; Tmaks T TL Gyab³G' }z5için c = c2 -(1 – 0,630b/a) M-(Izy .z= ly.y) + My(1.z – Izy .y) 4.ly – Izy Oz + dy, tan20, = Му vQ T- It 10 cm Og + dy x- Gy cos20 +Tysin20 , Jort= 2 2 2 600 N X Ly = *% sin20 + Eycos20 , omarsmin = 9s + Oy + , + r 14 cm B Tmaks + rảy Vertical load is applied to point B of a 10 mm radius cylindrical bar as shown in the figure. Calculate the shear stress occurring at point A. О 56,03 МPа O 53,48 MPa 49,78 MPa O 78,82 MPa 43.37 MPa
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To maximize production and minimize pumping costs, crude oil is heated to reduce its viscosity during transportation from a production field. (1) Consider a pipe-in-pipe configuration consisting of concentric steel tubes with an intervening insulating material. The inner tube is used to transport warm crude oil through cold ocean water. The inner steel pipe (k, = 45 W/m-K) has an inside diameter of D;, 1 150 mm and wall thickness f; = 20 mm while the outer steel pipe has an inside diameter of D; 2 = 250 mm and wall thickness t, = tị. Determine the maximum allowable crude oil temperature to ensure the polyurethane foam insulation (k, between the two pipes does not exceed its maximum service temperature of Tp. max = 70°C. The ocean water is at T.0 = -5°C and provides an external convection heat transfer coefficient of h. flowing crude oil is h; = 450 W/m²-K. 0.03 W/m-K) 500 W/m2-K. The convection coefficient associated with the (2) It is proposed to enhance the performance of the…
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T,"c -8 30 100 вкра 500 770.64 326 600 v₁ m²/kg 0.0007571 0.022 0063604. 0.002630 Phase description table for refrigerant-134a: CSI สแกนด้วย CamScanntr Saturated vipa verpe
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When The process is accorcing to a law iso thermal. takes place in a perfectly thermally b. C. insulated Cylinder. 8=1.3 Ans.[ 270 i 5.138 1g1.713 1J,52.6i,sSiky.-5.51, 219 5251g, o leg] University of Anbar College of Engineering Mechantont Englning Dpartment Year (Sophomore year) THERMODYNAMICSA Lec. No. Date: / 202 ME2303 Instructor: Asst. Prof. Dr. Saad M. Jalil hr Page Na. Q7 225 1g Ih of air at 4o% enter amixing chamber where it mixes with 540 kg /h of air at isi. Calculate the temperature of the air leaving the Chamber. assuming steady flow conditions. A ssume that the heat loss is negligible . Ans [22.4c] Q8: Aquantity of gas occupying o14n at a pressure of 1.4MNIM? and temperature of 300 č is expanded adiabatirally to 280 K Nimi Cv = 0. 74 Kg 11eg K p=1o41g ng - detennine: a. the mass of gas b. the temperature of the gas after expansion. work done during the expansion. Ans-fa-1.14 kg C. the b. ४३१ C. 180 lT ) Internal mC,(T2-T1) mC,(T2-T
1200 N/m B 2001 1.5 m- -1.5 m 450 N 600 N/m Mc. Nc 1000 0.5 m