A condenser of a refrigeration system rejects heat at a rate of 120 kW, while its compressor consumes a power of 30 kW. The coefficient of performance of the system would be
Q: A convenient way to measure damping in a single-degree-of-freedom system is called logarith- mic…
A:
Q: b) Determine the state of water if P = 0.7 bar and T = 102 °C. c) Determine the temperature of water…
A: b) Determine the state of water if, P = 0.7 bar and T=102°C.c) Determine the temperature of water…
Q: V mg Sw mg 2. A drone of mass m (shown above) moves with a horizontal velocity v and is propelled by…
A:
Q: If you are to analyze a DYNAMIC situation, then the sum of all forces is: (Please type answer).
A: Dynamic situation:The object is accelerating, meaning its velocity is changing over time.This…
Q: 5. For the engine-transmission-propeller problem shown below, The engine generates a torque of…
A: Transmission ratio,
Q: PROBLEM 3 3 Mechanical system consists of solid body 1 of mass mm which is connected by non-elastic…
A:
Q: released from rest in position A, determine its speed as it passes points B and C. What is the…
A:
Q: Calculate the reactions at the supports A and B. Roller support at A and pin support at B. 6m 8m 12m…
A:
Q: 2.6.6 The spur gear is subjected to the two forces caused by contact with other gears. (Eigure 1)…
A:
Q: explain the 26000 principles
A: Basically these are called ISO 26000 principles. ISO stands for International Organization for…
Q: H +x L→∞0 B The temperature at the base is 498 K, and the temperature of the surrounding fluid is…
A:
Q: Question 1 Member ABC of negligible weight is supported by a pin and bracket at B and by and…
A:
Q: Determine the hkil indices for the direction A in the figure below by writing the hkl indices and…
A: To find hikl direction for the direction A
Q: A titanium alloy (Ti-5Al-2.5Sn) specimen with the dimensions shown below is subjected to a uniaxial…
A: The stress of a bar is given by, , where P is the normal load and A is the cross-section area of…
Q: Rectangular tank contains 3.0 kg of air. The length of the tank is 1.0 m and the width is 1.5 m. The…
A: Rectangular tank contains m = 3.0 kg of air.The length of the tank is L = 1.0 m and the width is b =…
Q: 4. On a farm, water (y= 9810 N/m³ & µ = 1.15e-3 Pa*s) is delivered from a pressurized storage tank…
A: The weight density of water is The viscosity is The length of pipe is The diameter of pipe is The…
Q: Pitot-probe measurements are taken through a bound- ary layer at the trailing-edge of a flat plate…
A:
Q: Problem # 01: If F₂ =30lb and Fc =45lb, determine the resultant moment about the bolt located at A…
A:
Q: angie at Test as transforms into the forward swing. Determine the tension in the two 2 m ropes…
A: The mass is The boy is rest at The length of rope is
Q: What minimum speed does a 100 g puck need to make it to the top of a frictionless ramp that is 3.7 m…
A: Draw FBD
Q: shown. Determine the angle which makes the resultant of the two forces vertical. Determine the…
A:
Q: The detail below shows the fracture surface of a bolt. Explain the features shown and determine the…
A:
Q: 3. A simply supported beam of length 8 m carries point loads of 4 kN, 10 kN and 7 kN at 1.5 m, 2.5 m…
A:
Q: L D
A: An open differential in roller bearing consists of the following elements.a) Differential case: It…
Q: (a) Design the profile of a cam (minimum radius of the cam is 1.5 cm) when the knife-edge follower…
A:
Q: Five bolts are used in the connection between the axial member and the support. The ultimate shear…
A: The force applied is The ultimate shear strength is The factor of safety is The number of bolt is
Q: Compute the density for nickel at 700°C, given that its room-temperature (20°C) density is 8.902…
A: Given : The room temperature is The density at room temperature is The coefficient of expansion is…
Q: What amount of energy is required to change a spherical drop of water with a diameter of 2.20 mm to…
A:
Q: 9:27 AM Tue Jan 23 < O Design od Compute the resultant of the followm filowing T A T force systems…
A:
Q: PROBLEM 3 3. Mechanical system consists of solid body 1 of mass mm which is connected by non-elastic…
A: Given:The mass of the solid body 1, The mass of the disk 2, The radius of the disk The coefficient…
Q: PROBLEM 12.53 Tilting trains, such as the American Flyer, which will run from Washington to New York…
A:
Q: Review | Constants
A:
Q: A solid plastic rod has a diameter of d = 44 mm and a length of L = 700 mm. An axial load of P = 22…
A:
Q: r = b sin (20)
A:
Q: Statics: Equilibrium Examples 1. Calculate the reaction forces. 1.5 m B A B 9.81 kN 4+1 -2 m t 4 m…
A: Calculate the reaction forces.
Q: For the beam and loading shown, (a) draw the shear and bending-moment diagrams, (b) determine the…
A: The given beam with udl is shown in the figure.To find: To draw the shear and bending moment…
Q: A solid circular brass rod is subjected to a compressive axial load of P = 120 kN. The diameter of…
A:
Q: A 12-cylinder, 1.3 MW marine engine operating at 2000 rpm is to be designed. If the cylinder bore is…
A:
Q: A power cycle operating between two reservoirs receives energy QH by heat transfer from a hot…
A:
Q: Determine the mass of the air. W - Show that u2 = U₁ (where W is the work. Remark: Q can be…
A:
Q: Some engineers want a good estimate of drag and boundary-layerthickness at the trailing edge of a…
A: The objective of the question is to estimate the drag and boundary-layer thickness for the prototype…
Q: The planetary gear train shown in the image below has 16 teeth on the sun and 22 teeth on the…
A:
Q: A partiicle starts at the origin, following the path y = 0.15.x² 1 = 3(1 + ² co₂ (201)) m/² 4 m/s.…
A:
Q: He- 36" -24" 王 40"
A:
Q: An electric traction motor provides a torque of 400 N.m while rotating through 60 revolutions in 4…
A: The objective of the question is to calculate the electrical power input to an electric traction…
Q: Problem 5 Determine the magnitudes of the components of the force acting along the axis AB of the…
A:
Q: Find the mobility, the Grashof condition, and the Barker classification of the following oil field…
A: Draw the mechanism to the scale 1 in=1in
Q: 3-18 3-19 For each of the stress states listed below, find all three principal normal and shear…
A: “Since you have posted multiple questions, we will provide the solution only to the first question…
Q: Exergy is: Select one: O a. Theoretical maximum energy that can be extracted from the system, when…
A: Since you have posted multiple questions, we will provide the solution only to the first question as…
Q: Determine the magnitude of the resultant force FR = F₁ + F₂ and its direction, measured…
A:
Step by step
Solved in 3 steps with 14 images
- A refrigeration cycle operating Qout = 1000 Btu and Wcycle = 300 Btu. Determine the coefficient of performance for the cycle (NOT in %).A manufacturing company is intending to use its water cooled condenser for its proposed cold storage room. The name plate of the condenser gives the following specifications: refrigerant ammonia condenser water inlet 30 OC condenser water outlet 40 ỌC condensing temperature 35 OC refrigerant flow 3.84 kg/min circulating water flow 120 kg/min If the company decided to purchase a new compressor and evaporator, find the tonnage of the system and the temperature in the evaporator, (b) what is the COP? (c) find the theoretical hp required.Determine the coefficients of performance of the refrigeration cycle.
- A standard vapor-compression refrigeration system produces 20 tons of refrigeration using R 12 as a refrigerant while operating between a condenser temperature of 40°C and an evaporator temperature of -25°C. Determine the following: a. refrigerating effect in kilojoules per kilogram, b. the circulating rate of R 12 in kilograms per second, c. the power required, the COP, d. the heat rejected in kilowatts, and e. the volume flow rate of refrigerant at compressor inlet conditions. HA 40°C -25°C Entropy s Temperature TPROBLEM 2A household refrigerator has a coefficient of performance of 3 and requires a net powerinput of 0.8 kW. Question:(a) Determine the rate of heat transfer removed from the refrigerated space.(b) Determine the rate of heat transfer discharged from the refrigerator to thesurrounding kitchen.(c) Determine the annual cost in $ for supplying power to the refrigerator assuming24/7 operation and a cost of 12 cents per kWh.A refrigeration unit with COP = 3.8 is being used to remove heat from a particular machine by 0.42 kg/s of water (C, = 4.18 kJ/kg.K) at 20 °C that is chilled from 40 °C as shown in the Figure. What is the power input (in kW) to the refrigeration unit? Select one: O 11.15 1 2 10.97 9.24 REF TH O 13.26 QH O 14.63 O 12.32
- A geothermal heat pump with a coefficient of performance of 1.3 supplies a building with 48000 BTU/hr of heat. Assuming a $0.20/kWh electricity rate. Provide responses to the following questions about this system: a. How much would it cost per month to supply heat at a rate of 48000 BTU/hr using a basic electrical resistance heater? b. In that month, how much heat is extracted from the earth by the heat pump, in kWh? c. What is the monthly savings associated with using this heat pump vs a basic electrical resistive heater?Pls. Answer thank you! An air-conditioning system is used to maintain a house at 75°F when the temperature outside is 95°F. The house is gaining the heat through the walls and windows at a rate of 1250 Btu/min, and the heat generation rate within the house from people, lights, and appliances amounts to 350 Btu/min. Determine the minimum power input required for this air-conditioning system.4. An ammonia refrigerating plant operates between pressure limits of 10.34 bar and 2.265 bars. The refrigerant leaves the evaporator as a vapor 0.95 dry and leaves the condenser as a saturated liquid. If the refrigerant mass flow rate is 4 kg/min, find the cooling load. 65.3 kW O 70.5 kw O 75.52 kw O 52.5 kW
- A refrigerating system has a refrigerating effect per kilogram of 220kJ. The heat to be removed is 630kJ/hr. Calculate the required power input if the COP is 4. (answer in kW)The heat loss from a chicken coop (chicken house) is K(Tnside - Totside) during the winter, where K is 1.5 kW/K. The chicken coop temperature can vary between 15 °C and 25 °C without harming egg production. A heat pump with a coefficient of performance of 40% of that of a reversible heat pump is used to heat the chicken coop. What are the minimum power requirements if the outside temperature is -5 °C? .Find the rate at which heat is extracted from the refrigerated space.