A Single Stage Vapor Compression (SSVC) refrigeration system has a cooling capacity of 6 tons. The discharge of the evaporator is at -20°C & 0.1 MPa and the discharge of the condenser is at 30°C & 1.0 MPa. Determine the following: (a) the COP of the system, (b) the Energy Efficiency Ratio in kJ/hr/W, (c) the HP/ton of the system, (d) the Refrigerating Efficiency of the system.
Q: Match each of the following terms to the phrase that describes it. Answers are used only once. A.…
A: Engineering drawing is the transformation of ideas from the designer to the manufacturer. All the…
Q: A hydraulic motor with a volumetric displacement of 5 in'/rev is supplied with a fluid flow rate of…
A: Given:- Volumetric displacement,d=5in3rev,Flow Rate,Q=180 gpm,Fluid Pressure,P=2200 psi,Mechanical…
Q: 4. A spherical vessel of 1.7m diameter is made from 12mm thick plate, and it is to be subject4 to a…
A: Given data: d=1.7 mt=12 mm∆P=116 bar=116×10-4 GN/m2k=2.9 GN/m2E=200 GN/m2v=0.3 Need to determine the…
Q: As a thermo-fluid engineer working for an energy startup located at Greentown Labs, you are tasked…
A: Given Inlet temperature of hot gas, Ti = 52oC Inlet temperature of cold water, T1 = 4oC…
Q: The deflector elbow in Example 6-2 is replaced by a reversing elbow such that the fluid makes a 180°…
A: Given Pressure, P = 202200 N/m2 Area, A = 0.0113 m2 Mass flow rete, m =…
Q: This error occurs if the airflow is not directly parallel with the pitot-static tube 1.…
A: The pitot-static tube, also known as the Prandtl tube, is a device that monitors both stagnation…
Q: Qm objeef is pade to Thuow extended arm.If the hne mover. t v = 2 un A Jue f the motion of his arm…
A:
Q: A flow of fluid where the density on different states remain the same? A. Compressible Flow B.…
A:
Q: The uniform 8.5-m pole has a mass of 185 kg and is supported as shown. Calculate the force P…
A:
Q: Water is the working fluid in an ideal Rankine cycle. Steam enters the turbine at 1400 lbf/in2 and…
A:
Q: A small sphere (emissivity = 0.745, radius = r1) is located at the center of a spherical asbestos…
A:
Q: Air at standard atmospheric condition flows through a pipe at a velocity of 20 m/s, which then…
A: Ans: 995 Pa
Q: MULTIPLE CHOICE 1.) Liquid movement due to surface forces = a. liquid diffusion b. vapor…
A: Capillary flow is the liquid movement without help of external forces.
Q: Determine the internal forces at point D of the frame shown in the figure.
A: According to the details provided in the question, we need to calculate internal forces at point D
Q: supplied to a two-stage turbine at 140 bar and 400C. It expands isentropic ally until it is just…
A:
Q: A shaft and its associated rotating parts has a moment of inertia of 50 kg m2. The angular…
A: Given Data: Moment of inertia of shaft and associated parts, I=50 kg. m2 Torque, T=5 kN.m To…
Q: Use the Distortion Energy Failure Theory to assess the adequacy of this pipe. (OD 114 mm; ID 97 mm,…
A:
Q: Given data: U-2 m/s a=3.3 m/s2 t-3 Find final velocity
A: Given data Initial velocity is (u) is 2 m/s Acceleration is (a) is 3.3 m/s² Time (t) is 3 s Final…
Q: The impeller of a radial pump with diameter of 34.2 in trimmed such that its head is reduced by…
A: Given data Initial Diameter of Pump = D1 = 34.2 inFinal Head = Initial Head2H2 = H12We have to…
Q: Consider an elastic beam with a thin disk attached at the other end. It is observed that stem has…
A:
Q: A hydraulic press exerts a total load of 5.5 MN. This load is carried by two steel rods supporting…
A:
Q: . Steam is supplied to a two-stage turbine at 140 bar and 400C. It expands isentropic ally until…
A: Mass flow rate The mass flow rate of steam required to create 1 kW net work output is characterized…
Q: 1. The assembly consists of two sections of galvanized steel pipe connected together using a…
A:
Q: the tool life for
A: Given; Determine tool life for maximum production rate. Where data is given as ; Taylor's tool life…
Q: Given the isometric drawing, draw the multiview projection. The multiview projection of the glass…
A: Given Isometric drawing To find The three views
Q: The resultant of truck wheels P1 10 KN, P2 20 KN and P3 = 40 KN where P1 to P2 is 2 meters and P2 to…
A:
Q: Why proper selection of cutting speed is important in machining? What is the main advantage of a…
A: Given Machining To find Significance of cutting speed Advantage of turret lathe Advantage of band…
Q: (d) In the Hirakud hydroelectric power station, there are four Kaplan and two Francis turbines,…
A: Given dataHead = 26.5 mOverall efficiency of Kaplan Turbine = 90%Overall efficiency of Francis…
Q: A plane intersects the coordinate axes at x = 2/3, y = 1/3 and z = 1/2, what is the Miller index of…
A:
Q: ᴄᴀʟᴄᴜʟᴀᴛᴇ ᴛʜᴇ ɴᴘꜱʜᴀ ɪɴ ꜰᴛ ꜰᴏʀ ᴛʜᴇ ꜰᴏʟʟᴏᴡɪɴɢ ᴄᴏɴꜰɪɢᴜʀᴀᴛɪᴏɴ ᴏꜰ ᴀ ᴘᴜᴍᴘɪɴɢ ꜱʏꜱᴛᴇᴍ. ᴘᴠ=924.8ᴋᴘᴀᴀ
A: Pressure in the vessel, P=134.6 psia=134.6*144 lb/ft2=19382.4 lb/ft2Vapor pressure of water,…
Q: The yoke-and-rod connection is subjected to a 15 tensile force of 5 kN. Determine the average normal…
A:
Q: solution and explaination needed
A: The Navier-Stokes equation is a partial differential equation that shows the flow of incompressible…
Q: Steam is supplied to a two-stage turbine at 140 bar and 400°C. It expands isentropic ally until it…
A:
Q: 8. Six spring constants are present in the spring system. The first spring is parallel with the…
A:
Q: Determine tool life for maximum production
A: Given; Tool changing time is=5.4 min Taylor's tool life exponent=1.3 Acc. to data given we have to…
Q: harles' law states that If the pressure on a particular quantity of gas is held constant, then, with…
A:
Q: The wall of a cold storage room is composed of brick, concrete and cork insulation with thickness of…
A:
Q: 3. Gear B supplies 20 KW of power, while gears A, C and D withdraw 6 kW, 4 kW and 10 kW,…
A: Answer: The minimum diameter of the shaft is 24.5 mm.
Q: A) A refrigerator that operates on the ideal vapor-compression cycle with refrigerant-134a is to…
A: A)Reasonable pressure for the evaporator and condenser :
Q: 5-9. By applying a force F, a saline solution is ejected from the 15-mm-diameter syringe through a…
A:
Q: A small model of a water pump has the ff. performance characteristics: D1 = 9in; N1 = 1760 RPM; Q1…
A:
Q: A three-bladed wind turbine has a small, unbalanced mass m-0.2 kg, located at an eccentricty e-0.2m…
A: Any rotating mass if off center from the point of rotation is called as eccentric. Usually motors…
Q: A -7.5% grade is followed by a 1.225% grade intersecting at Sta. 15+750, with an elevation of 395.5…
A: Given Data The grade 1 given is: G1=-7.5% The grade 2 given is: G2=1.225% The rate is: R=0.555%/20…
Q: A 5-stage compressor compress 30,000 cfm of air from 15to 45 psia. If each stage operated…
A: Given: The number of stages, n = 5 The volume flow rate, V = 30,000 cfm The inlet pressure, P1 = 15…
Q: The car slows down at constant acceleration of 4 m/s^2 from the velocity of 40 m/s. Detemine the…
A:
Q: 11-4.6. The 440-lb body in Fig. P-11-4.6 is supported by wheels at B which roll freely without…
A: Given that: Weight of the body = 440 lb Coefficient of friction = 0.50 Acceleration = g/4 fps2 It is…
Q: Čalculate the moment produce at a point if value of force is 12 N and perpendicular distance from…
A: Given data : Force=F Perpendicular distance=d Required : Moment
Q: Find the Shear Moment Diagram of the following problems using
A:
Q: Problem 3: A length of clear plastic tubing is bent into a vertical U, as shown in the figure, and…
A: Given data A U tube has two immiscible liquids A and B. liquid A has density ρA and height d1 in the…
Q: Answer with diagram and complete solution. Establish the shear stress profile, velocity profile,…
A: A laminar flow of newtonian fluid means a fluid which follow newton's law of viscosity flowing in a…
Step by step
Solved in 3 steps with 1 images
- The condensing pressure for a Rankine engine is 0.001325 MPavac. Calculate the following for steam flow rate = 1 kg/sec of steam when the steam at the beginning of expansion is at 119.6 deg SH and 4.0 Mpaa. Draw the TS and equipment diagrams for the ideal and actual case and find for the following for the ideal case: Pump work in KW. Ans. Ideal heat rate in KJ/KW-hr. Ans. Rankine engine efficiency (%). Ans. Cycle thermal efficiency ( %). Ansa.) What are the different types of fans used in air-conditioning systems? Discuss their applications and relative advantages and disadvantages. b.) Air from an air-conditioned room is exhausted into atmosphere through a grill. The quantity of air passes through the grill is 20 cubic meter minute. The duct area leading to the grill is 0.12 m2. The static pressure behind the grill is 3 mm of water. Find the effective area of grill exhausting the air into atmosphere. Take the pressure loss passing through the grill as 0.5 mm of water. Solve both a and b Asap please , I will rateA steam condenser receives 10 kg per second of steam with an enthalpy of 2570 KJ/kg. Steam condenses into liquid and leaves with an enthalpy of 160 KJ/kg, if cooling water passes through the condenser with temperature increases from 13oC to 24oC. Calculate the cooling water flow rate in kg/sec. pls dont skip anything show all solution including conversion of units
- Exampie Air conditioning unit uses Freon R-22 for conditioned office at 25 C. The evaporating temperature is 17 C and the condensing temperature is 47 C. The compressor is reciprocating and single acting with number of cylinders of 4, volumetric efficiency of 0.9, number of revolution is 900 rpm cylinder dimensions of L/D is 1.25. If the compressor power is 3 kW and mechanical efficiency of 0.9, estimate the followings: the refrigerant mass flow rate in kg/min, refrigeration capacity in TR, cylinder dimensions, condenser heat load, coefficient of performance and relative efficiency. andA commercial refrigeration system with refrigerant R-134a as working fluid is used to keep the refrigerated space at -25 °C by rejecting waste heat to cooling water that enters the condenser at 15 °C as saturated liquid, as shown in Figure Q3, leaves at 30 °C as saturated liquid as well and flow rate is 1080 kg/h. The refrigerant enters the compressor at 500 kPa and leaves at 1.4 MPa and 68 °C. The pressure drop inside the condenser is 86 % and the density is 200 kg/m³. Determine : Q3 (i) refrigerant mass flow rate, (ii) compressor power input, (iii) the refrigerant load, (iv) coefficient of performance (COP), and (v) COP Carnot refrigerant system and compressor power input at minimum temperatureA steam condenser receives 10 kg per second of steam with an enthalpy of 2570 KJ/kg. Steam condenses into liquid and leaves with an enthalpy of 160 KJ/kg, if cooling water passes through the condenser with temperature increases from 13oC to 24oC. Calculate the cooling water flow rate in kg/sec. Show conversion of units pls
- Condenser 30 c „Flash Chamber Pi Evaporator OC & 50 kW For a 2-stage ammonia compression system, determine: 1. Draw the PH diagram showing the condenser, evaporator, & compressor discharge temps, intercooler pressure, all enthalpies & compressor suction specific volumes, m/kg 2. Compute the intercooler pressure in Bars & equivalent Ti in °C 3. Compressor discharge temps T: & T4 4. Mass of refrigerants m:, ms & m: in kg/sec 5. Compressor power Wi, W & total W- in kW & HP 6. Compressors PD with equal volumetric efficiency 80%; m/s 7. Condenser capacity, kW 8. Using a single stage compression, calculate & compare the power of the compressor/s in kW & HPQ.2: A refrigeration system using refrigerant 22 is to have a refrigerating capacity of 80 kW. The cycle is a standard vapor-compression cycle in which the evaporating temperature 42°C. -8°C and the condensing temperature (a) Determine the volume flow of refrigerant measured in cubic is meters inlet at the to the compressor. second per (b) Calculate the power required by the compressor. (c) At the entrance to the evaporator what is the fraction of vapor in the mixture.iii) the exit area of the nozzle. Take Cp = 1.005 kJ/kg-K and R=287 J/kg-K Q.B3. A heat engine operates between two reservoirs at 400°C and 30°C. Half the power produced by the heat engine is used to drive a Carnot heat pump that removes heat from the cold surroundings at 2°C and transfers it to a house maintained at 27°C. The heat engine is absorbing heat at a rate of 5 kJ/s. i) Draw the complete schematic of the device ii) Determine the thermal efficiency of the heat engine iii) Determine the coefficient of performance of the heat pump iv) Determine the rate of heat loss from the house. v) Determine the minimum rate of heat extraction by the heat pump, and vi) the total rate of heat rejection.
- For a 10-ton-capacity refrigeration system, the pressure of refrigerant in the evaporator is 150 kPa, whereas in the condenser it is 950 kPa. If refrigerant R-134a is used under saturated conditions, calculate the theoretical power required to operate the compressor = ... KWName the diagnostic criteria in Cyclic Voltammetry for an reversible process8.3 A four-effect evaporator is being considered for concentratinga fruit juice that has no appreciable boiling-point elevation.Steam is available at 143.27 kPa, and the boiling point ofthe product in the fourth effect is 45°C. The overall heat-transfer coeffi cients are 3000 W/(m 2 °C) in the fi rst effect,2500W/(m2 °C) in the second effect, 2100W/(m2°C) in thethird effect, and 1800W/(m2°C) in the fourth effect. Calculatethe boiling-point temperatures of the product in the fi rst,second, and third effects. Assume the heating areas in all theeffects are equal to 50m2 each. The mass fl ow rate of steam tothe fi rst effect is 2400kg/h, the feed rate to the fi rst effect of 5%total solids fl uid is 15,000kg/h, the concentrated product fromthe fi rst effect leaves at 6.25% total solids, and the concentrationof product leaving the second effect is 8.82% total solids. Make it in the form of a spreadsheet for solving the example problem no. 8.2 and 8.3