A simple saturated refrigeration R-12 system operates at an evaporating temperature of -11 °C and a condensing temperature of 40 °C. Determine the volume flow in m3/sec rate for a refrigerant capacity of 1 kW

A simple saturated refrigeration R-12 system operates at an evaporating temperature of -11 °C and a condensing temperature of 40 °C. Determine the volume flow in m3/sec rate for a refrigerant capacity of 1 kW

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter50: Commercial, Packaged Rooftop, Variable Refrigerant Flow, And Variable Air Volume Systems

Section: Chapter Questions

Problem 22RQ: Variable refrigerant flow systems sense the ______and _____of the refrigerant to determine the...

See similar textbooks

Related questions

Q: A pipe passes through a room in which the surrounding air is at 22 ºC. The diameter of the pipe is…

A: Given data:

Q: A Steam power plant operates using the actual Rankine Cycle where steam initially enters the turbine…

Q: A steel rod is to withstand a pull of 10,000 pounds. If the ultimate stress is 50,000 psi and yield…

Q: TEST II: DRAW THE ISOMETRIC VIEW 20 Mm 20 20 TOP VIEW FRONT VIEW SIDE VIEW MM O7

Q: Air initially at 400 K expands in a constant pressure non-flow process until the initial volume is…

A: As per our guidelines we are supposed to answer only one question. Kindly repost other questions as…

Q: What is the equilibrant if the resultant is 8N , 150°?

A: Find the equilibrant.

Q: МЕСН 2344 QUIZ 3 Buring steady-state operation, a gearbox receives 60 kw through the input shaft and…

A: Given data: Heat received by the gear box = 60 kW Heat transfer coefficient = 170 W/m2.K Outside…

Q: Derive the Jacobian matrix for a 2DOF robot with two revolute joints.

A: Jacobian is Matrix in mechanical technology which gives the connection between joint speeds ( ) and…

Q: HW. A 90-lb load is suspended from the hook as shown in the Figure. If the load is supported by two…

A: Find the forces in each cables and the stretch in spring for equilibrium.

Q: Find the value of discharge cross sectional area of channel 1.2 m2 and flow velocity is 0.3 m/s

A: Given Velocity, V = 0.3 m/s Area, A = 1.2 m2 Find Discharge, Q

Q: tested at 1:20 scale. TH esh water at 10°C (kine listance from the actua

Q: Find the least value of P required to cause the system of blocks to have impending motion to the…

Q: Two cables are tied together at C and are loaded as shown. a) Draw and label a Free-Body Diagram of…

Q: A closed system executes a series of processes for Wn = 80 BTU, U1 = 40 BTU and U2 = 5 BTU are given…

Q: how air’s relative humidity is measured using a sling psychrometer

A: To Find :- how air’s relative humidity is measured using a sling psychrometer

Q: Question 3 - Torsion ( A composite shaft is shown in the figure below which is fixed against…

Q: Question 24 A model of a river towboat is to be tested at 1:20 scale. The actual boat is designed to…

Q: Solid steel post subjecting torsion. Given that the diameter is 75.05 mm, length is 2.5.05 m and…

A: Given Diameter, d = 75.05 mm Length, L = 2.5 m Shear modulus, G = 78.08 GPa Torque, T = 540 N-m…

Q: Find the loss of head when pipe of diameter 30 cm is suddenly enlarged to a diameter of 40 cm. The…

Q: If the allowable shear stress for each of the 10-mm-diameter steel pins at A, B, and C is allow =…

Q: Calculate Tension BD if P = 100 kN. ... 1m 2.5 m D 250 N P -1.5 m- 2 m 1.5 m Use the editor to…

A: Find the tension in BD.

Q: Air is compressed into a 0.5 ft3 rigid tank until the initial pressure is 650 psia when the…

Q: (a)the pressure at which reheating takes place, (b)the total rate of heat input in the boiler, and…

Q: Q3 A car A is travelling along a straight path, while a lorry B is travelling along a circular path…

Q: A deal deheaf Cycle has a turbine inlet pressure of lo ufa with stean temperature d q00 c. the steam…

A: Given data Turbine inlet pressure and temperature = 10 MPa and 400°CIntermediate Pressure = 5…

Q: Find hydraulic radius Wetted area-8 m2 Wetted perimeter=10 m

A: Wetted area, A= 8 m2 Wetted perimeter, P= 10 m To find: Hydraulic radius

Q: QUESTION 3 (Analysis of steam cycles) A steam power plant operates on a theoretical reheat cycle.…

Q: A resistor is wired to a battery in a circuit and dissipates a power P1 as heat. A second battery,…

Q: Draw the complete shearing force and bending moment diagram for the beam shown in the figure. Draw…

Q: A differential pressure transmitter of a flow meter using venture tube reads 2.5* 105 Pa for a flow…

Q: 12. Consider 5-lbm sample of moist air initially at 20 psia, 150 F, and 50% relative humidity. This…

A: Given: m=5 lbmState 1P1=20 psiaT1=150 Fφ=50 %State 2P2=20 psia (cooled at constant pressure)T2=70…

Q: 548. The inverted T section of a 4-m simply supported beam has. the properties shown in Fig. P-548.…

A: Find the allowable distributed load.

Q: here the general equation of vibration is (N- w(M][X]. Find eigenvalues and eigenvectors. For ie…

Q: Determine the rate of flow of water through a pipe of diameter 20 cm and length 50 m when one end of…

A: When one end of the pipe is linked to a tank and the other end is open to the atmosphere, we must…

Q: An ammonia system with a 158-kW evaporator operating at -1°C and a 35-kW evaporator operating at…

A: INTRODUCTION : The compressor is one of the important devices in the refrigeration system. The main…

Q: 1. A crate with mass 32.0 kg initially at rest on a warehouse floor is acted on by a net horizontal…

Q: Define rotational and irrotational flow. The stream function and velocity potential for a flow are…

Q: A simple ideal Brayton cycle with air as the working fluid has a pressure ratio of 10. The air…

Q: b) Consider a steady, incompressible, parallel, laminar flow of a film of oil falling slowly down a…

A: given; (i) state all assumption you require to simplify the above to a one-dimensional flow problem.…

Q: Technician A says that vacuum readings for an engine with a performance camshaft might be lower at…

A: Soln:- we know, Most of the vichles are vaccum suspended units (vaccum promoters) , which utilize a…

Q: The pressure inside a diesel engine cylinder is 20 kPa, find the work done if the volume changes…

A: Given data: P=20 kPaV1=3.5 m3V2=5 m3 Need to determine the work done.

Q: Find the value of kinetic energy if mass of car is 55 kg moving with velocity 23 m/s

A: Given data : Mass of car=m Velocity of car=V Required : Kinetic energy

Q: Question 24 A model of a river towboat is to be tested at 1:20 scale. The actual boat is designed to…

A: Given, Velocity of the actual boat = U = 2.5 m/s Kinematic viscosity of the water = v = 1.3 x 10-6…

Q: 14–2C Consider laminar flow in a circular pipe. Is the wall shear stress T,, higher near the inlet…

Q: A system consisting of 2 kg of water initially at 100°C, 10 bar undergoes an internally reversible,…

Q: 8-_A Stean paver Dlant aperates using the actual Rankine Cycle where' steam intially enters the…

A: Given dataSteam power plant operates using actual Rankine cycle.Conditions of steam at entry of…

Q: A simple ideal Brayton cycle with air as the working fluid has a pressure ratio of 10. The air…

Q: A) A refrigerator that operates on the ideal vapor-compression cycle with refrigerant-134a is to…

A: Given Condenser temperature, T1 = - 10oC Evaporator temperature, T2 = - 25oC Find Condenser…

Q: Sproperplacement and label of points when. required. t deal Reheat Cycle has a turbine inlet…

Q: The particle P starts from rest at point A at time t = 0 and changes its speed thereafter at a…

A: Given Data The acceleration at which the speed changes is: a=1.2g The time given is: t=0.98 s The…

Concept explainers

Mechanisms of heat transfer

Heat transfer is an essential discipline in thermal engineering that deals with the transfer, conversion, usability, and creation of heat or thermal energy. Transfer of heat occurs through various mechanisms like conduction, convection, radiation, and change of phases. All these mechanisms have distinct characteristics, but these mechanisms can simultaneously occur in an identical system.

Question

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1:

VIEW

Step 2:

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

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

The function of the pressure tank in an open-loop, geo-thermal heat pump well system is to prevent the well pump from _____.
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 = ... KW
Determine the coefficients of performance of the refrigeration cycle.
a cooling system with a capacity of 10 tons of refrigeration, operates at 210 kPa in the evaporator, while in the condenser is 1100 kPa. if refrigerant R-717 is saturated, calculate the theoretical power required to operate the compressor. compressor power = .... kW
Q2/ In simple refrigeration system uses R134a, the evaporator pressure is 0.25 MPa and the condenser pressure is 1. MPa. The evaporator load is 25 TR. Determine the required work to operate the compressor motor in (a) kW, (b) hp. What is the displacement volume of the compressor if the volumetric efficiency is 80%
Calculate the power required by a system of one compressor serving two evaporators. One evaporator carries a load of 40 kW at 12 degree C and the other a load of 70 kW at -6 degree C. A back pressure valve reduce the pressure in the 10 degree C evaporator to that of the -5 degree C evaporator. The condensing temperature is 37 degree C. The refrigerant is 134-A. What is the COP? With TS Diagram Use this Steam Table:https://docdro.id/VkxK8WH
A refrigeration system with a capacity of 10 tons of refrigeration, operates at 210 kPa in the evaporator, while in the condenser it is 800 kPa. If R-134a refrigerant is in a saturated state, calculate the theoretical power required to operate the compressor. Compressor power = .... kW
A 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
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.
Q.1. A refrigeration process with interstage cooling uses refrigerant HFC-134a, and the outlet of the condenser is to be saturated liquid at 40°C. Refer to the following figure for stream numbers in your solution. The pressure of the flash chamber and the intermediate pressure between compressors is to be 290 kPa. The evaporator is to operate at -20°C and the outlet is to be saturated vapor. The flowrate of stream 1 is 23 kg/h. The flash chamber may be considered adiabatic. The compressors may be considered to be 80% efficient. a) What is the power input required to the first compressor? b) What are the flowrates of streams 6 and 7? What is the enthalpy of stream 4? Hot Side 6 5 Condenser 2nd Stage Compressor Throttle Valve 7 Flash Chamber Vapor Phase Only 1st Stage Compressor 8 Throttle Valve Evaporator 1 2 Cold Side
Q.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.
A refrigeration system with a capacity of 10 tons of refrigeration, operates at 210 kPa in the evaporator, while in the condenser it is 850 kPa. If R-134a refrigerant is in a saturated state, calculate the theoretical power required to operate the compressor. Compressor power = ... W.