Commercial Refrigerators are
Q: Q3. For a closed end cylinder where the inner radius is 20 mm and outer radius is 40 mm, and the…
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Q: Static Problem. Indications: The system shown is composed of an ABG bar, supported by a pin at…
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Q: Example 3 A house requires 2 x 105 kJ/h for heating in winter. Heat pump is used to absorb heat from…
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Q: a rigid tank contains 50kg of saturated liquid water at 90 degrees Celcius. if you add heat to the…
A: Yes, final state could be determined.
Q: 19) Which of these types of trusses is the simplest?: * OA) Warren Truss OB) Bowstring OC) King Post…
A: Answers: Q.19- (A) Q-20- (A) Q.21-(B)
Q: Find the pressure of a liquid in pipe of specific gravity 0.8 as shown in Fig. P.1.13.12. (Specific…
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Q: Q9/ Steam initially at 10 bar and 0.25 dryness fraction (i.e. quality = 85%). Expands down to p2 =…
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Q: Q3/A particle moving along a straight line is subjected to a deceleration a=(-V) m/s, where is V in…
A: Velocity is defined as the rate of change of displacement/position. It is a vector quantity having…
Q: 300 N 4 400 N P Q/ The figure above is in equilibrium find the value of the angle and find the value…
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Q: Sketch the graph
A: a) f1(t)=t, 0≤t<24-t, 2≤t<40, t≥4…
Q: 69. When disinfecting a water storage tank, should the water in the tank be used to culinary…
A: To find :- Correct. Option
Q: Example 6 Determine the reactions at the supports. A 3 m 1 m 800 N/m 3 m B 13
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Q: Car A with a constant velocity of 6.1 ft/s is heading east and in an instant that Car B with an…
A: Given : Va = 6.1 ft/s Vb = 2.75 ft/s ab = 0.05 ft/s2 To find : (a) Prove whether or not both Cars…
Q: Q/2 Air flows from a reservoir where p = 300 kPa and T=500 K through a throat to section 1 in Figure…
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Q: 7 kN/m 14 kN/m B 3m-4m 7 kN/m C. 1-3111- FIG. P4.34
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Q: in designing a ram pump, make computations where the Source Elevation = 50 meters. Target User…
A: Given : Suction head = 50 m Delivery head = 85 m Q = 230 L/min = 0.0038 m3/s To find : Design pump
Q: Q.1. Determine the moment of inertia of the shaded area about the x and y axis.
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Q: Q1: An engine of multi-cylinder is to rotate at a speed of 600 r.p.m. At draw the turning moment…
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Q: calculate the original length, in mm, of a circular tube that experience a compression stress of 80…
A: Compression stress, σ= 80 MPaDeformation of the tube, δ= 0.684 mmE= 70000 MPa
Q: 10) A gas is being compressed by a piston. Which of the following equations can be used to calculate…
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Q: Water flows through a pipe of varying diameter, A to B and then to C. The ratio of A to C is 8: 3.…
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Q: * two plates are fastened by a number of rivets and a tensile load of 300 KN is applied, find the…
A: The number of rivets required is 7.
Q: Q3. For a closed end cylinder where the inner radius is 20 mm and outer radius is 40 mm, and the…
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Q: Pls Comment on the use of layout and other elements in the washing machine control panel. If errors…
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Q: A square thread jackscrew has a 2 threads per inch. It is to lift 15 tons. The friction radius of…
A: As per our guidelines we are supposed to solve only 3 subparts if multiple subparts are asked .…
Q: ▪ A polytropic process of air from 150 psia, 300 deg F, and 1 ft³ occurs to a final pressure of 20…
A: As per our guidelines we are supposed to solve only 3 subparts if multiple subparts are asked .…
Q: At a given section a shaft is subjected to a bending stress of 30 MN/m2 and a shear stress of 60…
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Q: find the air flow through circular duct if the diameter (350mm) and velocity(6m/s)
A: Given data : Velocity=V diameter=d Required : Air flow
Q: Compute for the moments of inertia and radius of gyration of the shaded area with respect to the x-y…
A: Draw the given diagram with segments.
Q: Question 2(a): A steel surveyor's tape is to be used to measure the length of a line. The tape has a…
A: Dear student, According to the guidelines, I am allowed to answer only one…
Q: Extensive property of a system is one whose value
A: Property are of two type : Intensive Extensive Intensive : These property does not depend upon…
Q: Two plates 20 mm thickness are fastened by a number of 25 mm diameter rivets and an axial load of…
A: given data. thickness of plates = 20 mm diameter of rivets = 25 mm shear stress = 80 Mpa bearing…
Q: be 4.0E+20 m³. The electron and hole mobilities for this material are 0.38 and 0.18 m2/V-s,…
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Q: Discuss the turning moment diagram fc four-stroke cycle internal combustion e in one cylinder and…
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Q: As shown in the figure a planetary gear train consist of the arm C coupled to two gears A and B with…
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Q: Q3) A total of 10 rectangular aluminum fins (k = 203 W/m.K) are places on the outside flat surface…
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Q: 3. The 50-kg crate rests on a horizontal surface for which the coefficient of kinetic friction is…
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Q: 6) is a sheet metal forming process performed by placing a sheet-metal blank over a die cavity and…
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Q: Find the force in members BE, BF, and CE if P = 460 lb.
A: ◆ FBE = 0 lb ◆ FBF = 0 lb ◆ FCE = 0 lb
Q: e o ( a ) a to s os anos a (b) the angular velocity (in rpm) of AB 320 mm 100 100mm JA -240 mm-
A: Given: Vc=500 mm/s Solution: Let the Instantaneous canter E will lie at AB link from point C.…
Q: Define the following phrase; i. External forces ii. 111. iv. V. Forces generated by motion Forces…
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Q: The wall shear stress in fully developed flowportion of a 30 cm diameter pipe carrying water is…
A: we have to figure out pressure gradient
Q: (b) In figure, the two weights are released from rest. The coefficient of kinetic friction between…
A: Given:WA=5 NWB=10 Nμk=0.18
Q: 3. The 50-kg crate rests on a horizontal surface for which the coefficient of kinetic friction is…
A: given data mass = 50 kg coefficient of kinetic friction = 0.3 find the normal force, acceleration…
Q: Example 4-1: A perfect gas at pressure of 750 kPa and 600 K is expanded to 2 bar pressure. Determine…
A: Given: P1 = 750 kPa T1 = 600K V1 = 0.2 m3 V2 = 0.5 m3 P2 = 200 kPa
Q: Q.5 A standard vapor compression cycle uses R134a as the refrigerant. The condensing and evaporating…
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Q: SAE30 oil flows through a 1.5 cm diameter at 5m/s. Determine the length of entrance region, le?
A: given data diameter = 1.5 cm velocity = 5 m/s find the length of entrance region.
Q: The car in figure moves in a straight line such that for short time its velocity is defined by v =…
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Q: 7- Precipitates are Two dimensions in nanoscale Nanoparticles true
A: 7. False precipitates are three dimensions in nanoscale. 8. Reinforcing phase Reinforcing phase…
Q: 3. The 50-kg crate rests on a horizontal surface for which the coefficient of kinetic friction is…
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- In an absorption refrigerator, the energy driving the process is sllPplied not as work, but as heat from a gas flame. (Such refrigerators commonly use propane as fuel, and are used in locations where electricity is unavailable. *) Let us define the following symbols, all taken to be positive by definition: Qf = heat input from flame Qe = heat extracted from inside refrigerator Qr = waste heat expelled to room Tf = temperature of flame Te temperature inside refrigerator Tr = room temperature Use the second law of thermodynamics to derive an upper limit on the COP, in terms of the temperatures Tf, Te, and Tr alone.In an absorption refrigerator, the energy driving the process is sllPplied not as work, but as heat from a gas flame. (Such refrigerators commonly use propane as fuel, and are used in locations where electricity is unavailable. *) Let us define the following symbols, all taken to be positive by definition: Qf = heat input from flame Qe = heat extracted from inside refrigerator Qr = waste heat expelled to room Tf = temperature of flame Te temperature inside refrigerator Tr = room temperature Explain why the "coefficient of performance" (COP) for an absorption refrigerator should be defined as Qc/Qf.Provide complete solution and detailed diagram. A refrigerator is to remove heat from the cooled space at a rate of 300 KJ/min to maintain itstemperature at - 8oC. If the air surrounding the refrigerator is 25oC, determine the minimum powerrequired for this refrigerator? A. 0.263 kw B. 0.473 kw C. 0.623 kw D. 0.984 kw
- 4- the solar powered absorption cooling cycle is the most popular system for solar cooling application because of the following advantages....Differentiate refrigerator and heat pump.3.) When a gas surrounded by air is compressed or expands adiabatically, its temperature rises or decreased even though there is no heat input or dissipated to the gas. Where does the energy come from to raise or lower the temperature? 4.) Why must a room air conditioner be placed in a window rather than just set on the floor and plugged in? Why can a refrigerator be set on the floor and plugged in?
- Hello Sir,Good Night.I have a question in my homework related thermodynamics lesson.The following below is my question. Please advice, thank you. "please explain about thermodynamics and heat transfer in refrigeration". A simple air cooled system is used for an aeroplane to take a load of 10 tons. Atmospheric temperature and pressure is 25°C and 0.9 atm respectively. Due to ramming the pressure of air is increased from 0.9 atm, to 1 atm. The pressure of air leaving the main compressor is 3.5 atm and its 50% heat is removed in the air-cooled heat exchanger and then it is passed through a evaporator for future cooling. The temperature of air is reduced by 10°C in the evaporator. Lastly the air is passed through cooling turbine and is supplied to the cooling cabin where the pressure is 1.03 atm. Assuming isentropic efficiency of the compressor and turbine are 75% and 70%, finda) Power required to take the load in the cooling cabinb) COP of the system.The temperature of air leaving the cabin should not exceed 25°C.Reinneil Law-ay Active Now 7. (a) Compute the possible maximum efficiency of a heat engine operating between the temperature limits of 147*C and 698*C. (b) A refrigerator has COP of 6. How much work must be supplied to the refrigerator in order to remove 45 cal of heat from its interion? •.. More Edit II
- refrigerator. It is given that Q2 + Q4 3 Q1. Calculate the C.O.P. of the .refrigerator In figure shown, (E) is a heat engine with efficiency of 0.4 and ( R) is a Q3 Q1 Q2 C.O.P-5.00 O C.O.P=5.50 C.O.P=5.05 O C.O.P=5.55 O R.A meeting hall is maintained at 25°C, 18Cwb. The space has a cooling load of 40 kw of which 32 kw is sensible cooling load. The temperature of the supply air to the space must not be lower than 18°C. Determine A. Sensible heat ratio B. Amount of air supply to the space (kg/s) C. Conditions of supply air D. Capacity of supply fan (CFM)Air refrigeration works between the pressure limits of 1 bar and 5 bar. The temperature of air entering thecompressor and expansion cylinder are 100C and 250C respectively. The expansion and compression follow thelaw pv1.3=Constant. Find the following:• The theoretical C.O.P of the refrigerating cycle.• If the load on the refrigerating machine is 10 tons, then find the amount of air circulated per minutethrough the system. Assuming the actual C.O.P is 50% of the theoretical C.O.P.• Length and diameter of the single acting compressor runs at 300 r.p.m and the volumetric efficiency is85%.