1. An ideal-gas refrigeration cycle uses air as the working fluid to maintain a refrigerated space at - 30°C while rejecting heat to the surrounding medium at 30°C. If the pressure ratio of the compressor is 3 and the polytropic index is 1.3 for both compressor and expander, determine the minimum temperature in the cycle for a mass flow rate of 0.03 kg/s. °C
Q: 2. Mercury is poured into the tube in the figure until the mercury occupies 375 mm of the tube's…
A:
Q: Q2: Water flow in a pipe as shown in the figure if the velocity of the fluid at section A is 1.8 m/s…
A:
Q: 2. A test conducted on a four-stroke four-cylinder petrol engine having a bore of 75mm and a stroke…
A: (a) Mass flow rate of air consumption: Given that, Atmospheric condition in the test room are -…
Q: The dry bulb and wet bulb temperature of an enclosed room was 27 deg C and 23 deg C, respectively.…
A:
Q: The volume of the water increases by the O mass O weight O buoyancy volume _____ of the object. — —…
A:
Q: A Carnot engine rejects 50% of the heat absorbed from a source to a sink at 27°C. What is the source…
A: In this answer, The source is represented by subscript 1, and the sink is represented by subscript…
Q: Determine the terminal velocity vf of the projectile. Evaluate for o=1.22 m/s², n=0.27 m²¹, and…
A: Introduction: The motion of an item hurled, or projected into the air, subject exclusively to…
Q: 1. A 100 mm deep stream of water (μ = 1.14 x 10-³ Pa.s) is flowing over a boundary. It is considered…
A: Given data y=0.1 mu2=1.6 m/sμ=1.14×10-3 Pa sec Here y represents the depth and u is the speed of the…
Q: The beam is constructed of four boards, and is subjected to a moment of M=200 kip in, calculate the…
A:
Q: 1. A fluid is flowing in a 6in diameter pipe at a pressure of 4PSI with a velocity of 8ft/s. The…
A:
Q: 6. A differentially steered mobile robot has a pose of (1m,1m, 30 deg.) with respect to the global…
A: Given DatavR=0.5 m/sωR=0.1 rad/s T=0.5 st=1 sec
Q: What duty is required to cool 1 t of Melons in 12 h from 20°C to 4°C? (Use Table 21.1 data
A:
Q: A meterstick has the same mass with a clay. If the clay is suspended from the left end of the stick,…
A: we can solve by moment balance
Q: A Carnot engine rejects 50% of the heat absorbed from a source to a sink at 27°C. What is the source…
A: Given data: TL=27°C=300 KQL=0.5QH Need to determine the source temperature.
Q: A pump at an elevation of 300m is pumping 0.05 m³/s of water through 2.4 km of 150-mm pipe to a…
A:
Q: An insulated, rigid tank whose volume is 0.5 m³ is connected by a valve to a large vessel holding…
A:
Q: Torsion Load 100 mm- Shafts ABC and DEF are made of A36steel. Shaft ABC is connected to an…
A: Given: The motor power, P = 2 kW The speed of shaft ABC, N = 62 rpm The factor of safety of shaft…
Q: 03:- A 8 mm ball have a relative density 1.25 is suspended from a string. Calculate the angle…
A:
Q: Q1/B) Match between Column A & B. A 1 Cutting Fluids 2 HSS 3 Serrated or segmented chips 4 Vertical…
A: Solution is attached below:
Q: An enormous and expensive artwork with mass 42.8 kg is mounted on a wall with four heavy-duty steel…
A: (a) The shear stress on the bolts is 5.35 × 106 N/m2. (b) The resulting vertical deflection of the…
Q: Consider the transmissibility expression ε = √(1+(23r)²) √{(1-r²)²+(23r)²} Where is the damping…
A: Given question: For the given transmissibility equations, give the two kinds of transmissibility…
Q: A closed cylindrical vessel, 3m in diameter and 8m high is shown. Assuming that C of orifice is…
A: we have to determine the flow rate
Q: A 1 Cutting Fluids 2 HSS 3 Serrated or segmented chips 4 Vertical shaper 5 Milling B Chip load 7…
A:
Q: A work group of 5 workers in a certain month produced 500 units of output working 8 hr/day for 22…
A: Given Dataunit=500day=22 day 8hrs/day worker =10unit=7200day=22 day8hr/day
Q: The beam is constructed of four boards, and is subjected to a moment of M=200 kip in, calculate the…
A:
Q: 2 Major parts of the lathe 2 Types of the lathe 5 Types of lathe cutting tools 4 principal parts of…
A: given; major parts of the lathe types of the lathe types of the lathe cutting tool
Q: Two reservoirs are connected by 198ft of 2-in diameter tubing. What is the flow rate when the…
A: Given:L=198 ftd=2 inz=50 ft
Q: Using the figure below solve for the desired degrees to be set in the compound rest. I TPF = .602…
A:
Q: 4. If the pressure of water at the inlet to a pipe of length 300m and diameter 0.2m is 10¹kN/m²,…
A: Calculated the maximum rate at which power can be transmitted at the outlet from the pipe.
Q: Q1 The slider of mass 1 kg attached to a spring of stiffness 400 N/m and unstretched length of 0.5 m…
A:
Q: Explain and contrast the functionality of a two-stroke and four-stroke diesel reciprocating engine.…
A: Sketch the two stroke diesel reciprocating engine.
Q: Using the method of joints, determine the force in each member of the truss shown. State whether…
A:
Q: A force F of magnitude 690 lb is applied to point C of the bar AB as shown. Determine both the x-y…
A:
Q: How many cylinders in the engine .uses this crankshaft 間
A: From the figure we can see that there are 4 crank connection is given on shaft. Somoy will…
Q: Saturated vapor enters the turbine at 8.0 MPa and exits 0.008 MPa. The turbine has an isentropic…
A: Solution is attached below
Q: (flywheel rotated about its center), The tangential acceleration at of point A is calculated to be…
A:
Q: What type of heat exchanger is a waste heat boiler? Is it a regenerator or a recuperator? Choose…
A: Waste heat boiler is a boiler in which steam is heated by utilizing heat from the flue gases.…
Q: ) A 75 mm-diameter orifice is on the vertical side of a closed tank. The tank rests on a flat ground…
A: Given: Diameter of orifice→D=75 mm=0.075 m Height of the orifice from the ground: →h=0.5 m Hence…
Q: Two reservoirs are connected by 198ft of 2-in diameter tubing. What is the flow rate when the…
A: The calculated flow rate in ft3/s.
Q: Instructions: Perform a cycle analysis for the given reheat-regenerative Rankine cycles. Supply the…
A:
Q: Determine the shear centre of the circular arc section as shown in fig. 9-24. 1cm 60° 10cm
A: The shear centre of the circular arc section, as indicated in the diagram, must be determined in…
Q: In the figure, the resultant of all forces in y-direction equal to -- у X m
A:
Q: Give the two kinds of transmissibities that are governed by this expression
A: we will discuss different transmissibilities
Q: Q1 The slider of mass 1 kg attached to a spring of stiffness 400 N/m and unstretched length of 0.5 m…
A:
Q: The line of action of the 4360-lb force runs through the points A and B as shown in the figure.…
A:
Q: According to the figure (flywheel rotated about its center), the normal acceleration an of point A…
A: First draw the free body diagram.
Q: P C 314 B
A:
Q: 5. Show by sketch only the creep strain-time (e-t) curve. 6. In Iron-Carbon System, compare between…
A: Solution is attached below:
Q: the forle P = looN Causes the massless block (A) to just about to move along horizontal surface.…
A:
Q: B) Lathe. C) milling machine. D) planner. withstand the forces of the process. A) drill press. E)…
A: 4) planner 5) horizontal milling machine 6) turning
Step by step
Solved in 2 steps
- Refrigerators currently being manufactured in the United States are using______as their refrigerant.Condensers in these refrigerators are all_______cooled.3.23: An ideal refrigeration cycle operates with R134a as the working fluid. The temperature of refrigerant in the condenser and evaporator are 40°c and -20°c respectively. The mass flow rate of refrigerant is 0.1 kg/s. Determine the cooling capacity and cop of the plant. Take enthalpy of refrigerant vapour at the end of compression as 276 kJ/kg. 40°C 2 -20°C/ 3 40°C -20°C h
- An Ammonia refrigerant vapor compression system is utilized as an air-cooled water chiller. It is operating at a condenser temperature of 40oC and an evaporator temperature of 0 oC. The system develops 15 Tons of Refrigeration. Determine: a. The discharge temperature and mass flow rate of the refrigerant circulated. b. The theoretical piston displacement of the compressor. c. The theoretical compressor work. d. The heat rejected in the condenser. e. The Carnot COP and the actual COP of the cycle. f. The volume of air supplied in the condenser if it enters at 30oC and leaves at 34oC. g. LMTD and AMTD in the condenser h. The water flow rate of the chiller if it enters the evaporator at 10oC and Prepared By/ Date (Faculty Member) Reviewed By/ Date (Program Chair) Page of TEDDY P. CASACOP ALEXANDER HAMILTON S. ATIENZA leaves at 5 oC. i. LMTD and AMTD in the evaporator1. A refrigeration system operates on an ideal vapor compression using R-12 with an evaporator temperature of -30°C and condenser exit temperature of 49 30 °C and requires 74.6 kW motor to drive the compressor. What is the capacity of the refrigerator in tons of refrigeration? Enthalpy at condenser entrance = 382 kJ/kg, exit = 248.15 kJ/kg, at evaporator entrance 248.15 KJ/kg, exit = 338.14 kJ/kg.A vapor compression refrigeration cycle operates at steady flow conditions with 0.25 kg/s or R-134a. The table below shows some of the operating parameters and properties for the refrigerant. The compressor is réfrigerated, and the condenser is also cooled with water. The compressor receives shaft power equivalent to 7.5 hp. Neglecting changes in kinetic and potential energy changes and any heat loss between devices, please answer the following. a. Complete the table below and sketch the cycle processes on a T-s diagram. When completing the table please use the same number of decimal places as in the tables. b. 123456 Determine the cooling capacity of the refrigeration unit, in Tons (1 refrigeration Ton=211 kJ/min). c. Compute the COP d. Determine the volume flow rate of refrigerant entering the condenser in L/min. e. Determine the mass flow rate of cooling water passing through the condenser. 1. Determine the heat transfer rate from the compressor. g. Compute the rate of entropy…
- A vapor compression refrigeration cycle operates at steady flow conditions with 0.25 kg/s or R-134a. The table below shows some of the operating parameters and properties for the refrigerant. The compressor is refrigerated, and the condenser is also cooled with water. The compressor receives shaft power equivalent to 7.5 hp. Neglecting changes in kinetic and potential energy changes and any heat loss between devices, please answer the following. a. Complete the table below and sketch the cycle processes on a T-s diagram. When completing the table please use the same number of decimal places as in the tables. 123456 b. Determine the cooling capacity of the refrigeration unit, in Tons (1 refrigeration Ton = 211 kJ/min). c. Compute the COP. d. Determine the volume flow rate of refrigerant entering the condenser in L/min. e. Determine the mass flow rate of cooling water passing through the condenser. f. Determine the heat transfer rate from the compressor. g. Compute the rate of entropy…A vapor compression refrigeration systemhas an enthalpy of saturated liquid at the hightemperature side is 341.769 kJ/kg while at lowtemperature side is 131.27 kJ/kg and a latentheat of vaporization of 1312.63 kJ/kg. If themass flow rate of refrigerant is 0.50 kg/s.compute the tons of refrigeration.a) A freezer working on an ideal vapour-compression refrigeration cycle uses refrigerant R- 134a with a mass flow rate of 0.10 kg/s. The refrigerant leaves the evaporator as saturated vapour at a temperature of -8 °C. It leaves the condenser as saturated liquid at a pressure of 0.8 MPa. Determine the power required to drive the compressor. Note that the thermodynamic properties of R-134a are attached at the end of the paper. 0.8 MPa A Figure Q4 b) A freezer wall is made of a composite material with a thickness of 20 mm and a conductivity of 0.03 W/m-K. Air temperatures inside and outside the freezer are -6 °C and 20 °C, respectively. The convection coefficient is 2 W/m² K on both the inner and outer surfaces of the freezer wall. Determine the heat flux through the freezer wall. -8 C
- What are the four processes that make up the simple ideal vapor compression refrigeration (VCR) cycle? Make sure you mention what is physically happening during each process Themodynamics question. please explain briefly.Thank youAn r-134a refrigerator operates a simple vapor compression cycle (SVCC). The evaporatoroperates at -10 °C, while the condenser operates at 1 MPa. R-134a flows around the system at 10 g/s.a. Graph the cycle in a P-h diagram and calculate the temperature at the exit of the compressor, assuming it is 100% isentropicallyefficient.b. Calculate the power required by the compressor (in W) and the cooling effect of the refrigerator (in kW) c. Compute for the COP of the system. What is its percent difference from the reversible efficiency?A vapor compression refrigeration cycle undergoes wet compression and maintains the temperatureof the refrigerated space to -25C. The system uses R-12 refrigerant and undergoes isentropicexpansion to the inlet of the evaporator. The compressor discharges the refrigerant at saturatedvapor state at a condensing pressure of 1367 kPa. Determine:a) Determine the enthalpy of all statesb) Determine the quality of refrigerant entering the evaporatorc) Determine the quality of refrigerant leaving the evaporatord) Refrigerant effecte) Work of compressionf) COP If a liquid to suction heat exchanger was installed to prevent wet compression such that it allows 6Csub cooling of refrigerant and superheating to 8C. The expansion of refrigerant is no moreisentropic but isenthalpic. Therefore, determine:g) Enthalpy at different section of the cycleh) COP of the system compared to COP of standard vapor compression cycle.