Bundle: Refrigeration and Air Conditioning Technology, 8th + MindTap HVAC, 2 terms (12 months) Printed Access Card
8th Edition
ISBN: 9781337190336
Author: TOMCZYK
Publisher: CENGAGE L
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 10, Problem 12RQ
What is meant by "restricting" liquid refrigerant into a refrigeration system when charging?
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Ex. Find the stress concentration factor of grooved shafts that
loaded as shown
, take 2=2, f = 0.15
j=
T
тв
d
a-
_b_
_C-
Ex. Determine the safety factors for the bracket rod based on
the distortion "energy theory and max. shear theory
both
Given:
L= 6 in
held 47000 Psi
and material is ductile.
a = 8 in
d = 1.5 in
F = 7000-16
arm
し
Tod
F
a
d
Ex. For a plate that made from a brittle material alloy shown below,
Find the max. stress that occur.
P=5KN
d=2cm
w= 10 cm
t=0.2 cm
Chapter 10 Solutions
Bundle: Refrigeration and Air Conditioning Technology, 8th + MindTap HVAC, 2 terms (12 months) Printed Access Card
Ch. 10 - How can liquid refrigerant be added to the...Ch. 10 - How is the refrigerant cylinder pressure kept...Ch. 10 - Why does the refrigerant pressure decrease in a...Ch. 10 - What type of equipment normally has the...Ch. 10 - Why are digital scales preferred over other types...Ch. 10 - How does a graduated cylinder account for the...Ch. 10 - What methods besides weighing and measuring are...Ch. 10 - Two or more refrigerants combined together to...Ch. 10 - Define temperature glide, and give examples of...Ch. 10 - A portion of a refrigerant blend that is...
Ch. 10 - What is the main difference between a zeotropic...Ch. 10 - What is meant by "restricting" liquid refrigerant...Ch. 10 - What causes fractionation in certain refrigerant...Ch. 10 - When should a service technician use the...Ch. 10 - A service technician is charging an...Ch. 10 - A technician takes the following readings on an...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Ex. A circular cantilever rod, shown in the Fig. below, is to be made * from al ductile material with field strength of 276 MPa Using design factor N = 2 factor N = 2, Find the appropriate diameter(d). d F= 1.75 KN P=9KN 120mmarrow_forwardEx. A circular rod, constructed of ductile material of tensile a "strength yd 300 MPa", is subjected to a torque T = 500 TE N.m. and axial tensile load "P. The diameter of the rod d= 50 mm •Using Tresca criterion with N=1.2, Find allowable P.arrow_forwardQwhat are the steps to draw failure theories on a chart paper: 1- Tresca theory 2- von Mises theory 3- Rankine theory Explain this in detailarrow_forward
- A power transistor with three 0.8 mm diameter leads of a copper-silver alloy (k = 400 W/m-K) dissipates 3.5 Watts of power. The printed circuit board (PCB) on which the transistor is mounted is maintained at 30 C. The air temperature is 20 C and the heat transfer coefficient for the leads is 60 W/m² K. The length of the leads from the transistor to printed circuit board is 9.0 mm. (a) Determine the maximum lead temperature neglecting all convection effects. (b) Determine the maximum lead temperature if convection is present. T=20C h = 60 W/m²K Air Power Transistor Lead k = 400 W/m K TPCB = 30 C 9 mmarrow_forwardA window in a tall building experiences a horizontal wind flow parallel to the surface at a velocity of 8 m/s. The window measures 2 m high, 1.5 m wide and 6.5 mm thick. The transition from the building wall to the window glass surface is not smooth. The window casement that surrounds the edge of glass pane is raised 10 mm above the surface of the glass and adjacent wall structure. Inside the building, the air temperature and heat transfer coefficient for the interior surface are 21 °C and 9 W/m² K respectively. The window has a uniform thermal conductivity of 1.4 W/m K. If the outdoor air temperature is 5 °C, determine the rate of convective heat loss from the window. Develop a thermal resistance network for the window system. Please state and justify all assumptions. Neglect any conduction through the casement. Assume the following air properties: kair =0.0248 W/m K, v= 14.20 x 106 m²/s, Pr = 0.712. Outside Air u=8m/s T=5°C casement glass Inside 2 m T=21°C h=9W/m² K 6.5 mm 1.5 m…arrow_forwardA thin electrical heater that dissipates 2 kW of thermal energy is position between two plane walls. The thickness of each wall is shown in the figure below. The thermal conductivities of sections A and B are 3 W/m C and 0.8 W/m C respectively. The electrical heater is assumed to be highly conductive (k=200 W/m C). The exterior surface of each wall experiences convective conditions as summarized below. (a) Construct the thermal circuit representing the steady state heat transfer for the system. Label all nodes, resistances and relevant terms. (b) Determine the temperate of the electrical heater. T = 50 C h = 200 W/m² C A 10 cm 6 cm B Electrical Heater T_ = 20 C h = 50 W/m² C K₁ = 3 W/m²K 0.05 cm k₁ = 0.08 W/m² Karrow_forward
- I need answer with diagram and not from AIarrow_forwardOne -1/x²-10.5x+1Z 84.5 11 2x2 +212 +382 2 2 -23.500 81 4th Year 24. (i) Derive a mathematical model for the mechanical system represented below, where the input Automation and Control is the Force F, and the output is the displacement x. (ii)Determine the general transfer function of the system given that the input is an impulsive force of 10N and the following constants (iii\Determine the output as a F(s) (iii) What is the output x as a function of time? EX Rnd 0 COM 7 4 Ran# Ra 25 (N/m) 5 kg 30 (N.s/m) Ans(i) ref notes 2 2 s² + 6s+5 25. A control system has a forward path transfer function of (111) (iii) x(t) = 0.5(e-t-e-5t) 2 and a negative feedback loop four S+2 with a transfer function 4. What will be the (time) response of the system to a unit step input? Ans: 0.2(1-e-10) 10 26. A control system has a forward path transfer function of and a negative feedback loop S+3 with a transfer function 5. What will be the (time) response of the system to a (a) unit impulsive input? (b) a…arrow_forwardfour One -H = 2x2 +212 +382 2 x² -23.5x + x37 84 x -10.5x+h 84.5 Automation and Control 4th Year 24. (i) Derive a mathematical model for the mechanical system represented below, where the input is the Force F, and the output is the displacement x. (ii)Determine the general transfer function of the system given that the input is an impulsive force of 10N and the following constants (iii\Determine the output as a F(s) (iii) What is the output x as a function of time? 25 (N/m) F 5 kg 30 (N.s/m) 2 Ans(i) ref notes (iii) (iii) x(t) = 0.5(e-t-e-st) 2 and a negative feedback loop S+2 s² + 6s+5 25. A control system has a forward path transfer function of with a transfer function 4. What will be the (time) response of the system to a unit step input? CON 4 1 Rnd Rane R 0 EL SALVADOR Ans: 0.2(1-e-10) 10 s+3 and a negative feedback loop 26. A control system has a forward path transfer function of with a transfer function 5. What will be the (time) response of the system to a (a) unit impulsive…arrow_forward
- find the temperature distribution of the beam shown below, take &=o.!! and L-1m- of C" loko -10C" 30 со h2 5 Kwlm²-ko T = 250° q=30twarrow_forwardQ1/Create an estimated (S-N) diagram and define its equation for an axial fully reversed loaded steel bar. Its cross section shown in figure (1). Determine the life in cycle that can be expected if the alternating stress is (127Mpa). The bar surface finch is hot rolled. The operating temperature is (506 Co) and (du-577 Mpa). 120 mm. 4arrow_forwardQ4/ Find using a proper design theory the safety factor (N) based on point A for the circular cantilever rod of a diameter (94 mm) shown in figure 3. Knowing that the rod is made of Stainless Steel Type 304-cold rolled, Which is subjected to a force (F= 6.4 kN) inclined with y-axis by 0-72° and to a torque (T= 265π N. m). Fig.3 L1=3.2 cm L2= 3.6 cm F Z Y X (15 Marks) Q5/ Create an estimated S-N diagram and define its equation for an aluminum rectangular bar, shown in figure 4 below, with a (out=342Mpa). The bar is loaded in a fully reversed bending and the bar radius is 12 mm. Determine also the corrected fatigue strength at (N=2.3* 107 cycles). Knowing that the bar surface finch is ground, the operating temperature is 155 C°, and Take a 99.99% reliability factor. Fig. 4 h=5.6 cm Head of the Department: Dr. Deyaa Hassan Jawad Al-Jashami b=4 cm *** Best of Luck *** (15 Marks) Examiner: Ass. Lect. Ahmed A. Tomanarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Refrigeration and Air Conditioning Technology (Mi...Mechanical EngineeringISBN:9781305578296Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill JohnsonPublisher:Cengage Learning
Refrigeration and Air Conditioning Technology (Mi...
Mechanical Engineering
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:Cengage Learning
The Refrigeration Cycle Explained - The Four Major Components; Author: HVAC Know It All;https://www.youtube.com/watch?v=zfciSvOZDUY;License: Standard YouTube License, CC-BY