The LiBr-water absorption cycle shown in the Fig. operates at the following temperatures: generator, 105 C; condenser, 35 C; evaporator, 5 C; and absorber, 30°C. The flow rate of solution delivered by the pump is 0.4 kg/s. (a) What are the mass flow rates of solution returning from the generator to the absorber and of the refrigerant? (b) What are the rates of heat transfer at each of the components, and the COP? High-pressure vapor Solution 105 Generator Heat Pump Monog Heat Condenser Throttling Expansion valve valve Low-pressure vapor Heat Absorber Evaporator Heat

The LiBr-water absorption cycle shown in the Fig. operates at the following temperatures: generator, 105 C; condenser, 35 C; evaporator, 5 C; and absorber, 30°C. The flow rate of solution delivered by the pump is 0.4 kg/s. (a) What are the mass flow rates of solution returning from the generator to the absorber and of the refrigerant? (b) What are the rates of heat transfer at each of the components, and the COP? High-pressure vapor Solution 105 Generator Heat Pump Monog Heat Condenser Throttling Expansion valve valve Low-pressure vapor Heat Absorber Evaporator Heat

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

Chapter22: Condensers

Section: Chapter Questions

Problem 7RQ: When a standard-efficiency air-cooled condenser is used, the condensing refrigerant will normally be...

See similar textbooks

Similar questions

Condensers in these refrigerators are all_______cooled.
What are the approximate temperature ranges tor low-, medium-, and high-temperature refrigeration applications?
When a standard-efficiency air-cooled condenser is used, the condensing refrigerant will normally be higher in temperature than the entering air temperature.
Welded ______sealed compressors are normally used in household refrigerators.
Four methods for controlling head pressure in an air-cooled condenser are ______, ______, _______, and
What are higher-efficiency refrigerant blends that can be used as long-term replacements for R-22 in residential and light-commercial air-conditioning applications?
Steam or water substance is used in a Carnot refrigeration cycle. The evaporator temperature is 300 K and the condenser temperature is 500 K. During condensation the steam changes from a saturated vapor to a saturated liquid. Calculate (a) the compressor work (kJ/kg) required, (b) the net work (kJ/kg) per cycle, (c) the coefficient of performance.
In a certain refrigeration system for low temperature application, a two-stage operation is desirable which employs ammonia system that serves a 40 − ton evaporator at −30°C. The system uses a direct contact cascade condenser, and the condenser temperature is 40°C. Sketch the schematic diagram of the system and draw the complete process on the PH diagram b. The mass flow rate in the low loops in kg/s c. The mass flow rate in the low and high pressure loops in kg/s d. The total work
A simple vapour compression plant produces (5 tonnes) of refrigeration. The enthalpy values at inlet to compressor, at exit from the compressor, and at exit from the condenser are (183.19, 209.41 and 74.59 kJ/kg) respectively. Determine :- (i) The refrigerant flow rate, (ii) The C.O.P. (iii) The power required to drive the compressor. (iv) The rate of heat rejection to the condenser.
ASSIGNMENT 3 A Standard Refrigeration system using R22 has condensing pressure of 1812.1 kPa and vaporizing pressure of 421.35 kPa. The refrigeration capacity is 28 tons. A four-cylinder, double acting compressor has the following data: shaft speed, 1800 rpm; piston speed, 342 cm/s; bore-to-stroke ratio, 1.2; 5% clearance volume Determine (a) t, h, V, S, (b) t, ha, Va, S2 .. show double interpolation (c) P,, t, h, (d) Pa ha, X. (e) Draw the ph Diagram and system diagram (f) mass flow rate of refrigerant (g) isentropic work of compressor (h) ideal coefficient of performance (i) power per ton of refrigeration (i) volume flow capacity of compressor (k) Stroke in cm of compressor (I) Bore in cm of compressor (m) Volume displacement of compressor (n) actual volumetric efficiency (0) compression ratio (p) clearance volumetric efficiency (q) mechanical efficiency of compressor if motor is 46 kw
A conventional LiBr-water absorption cycle operates at the following temperatures: generator, 95oC; condenser, 40oC; evaporator, 5oC; and absorber, 35oC. The flow rate of solution delivered by the pump from the absorber to the generator is 0.45 kg/s. Determine the following:a. Refrigerating Capacityb. Coefficient of Performancec. Heat rejected in the Condenserd. Heat rejected in the Absorber
1. A simple saturated refrigeration cycle for R-12 system operates at an evaporating temperature of - 5 degrees C and condensing temperature of 40 degrees C. Show the effects from a to e if the suction vapor is superheated to 15 degrees C. When superheating of suction vapor occurs inside the refrigerated space:a. the refrigerating effect per unit mass increases.b. the mass rate of flow per unit capacity decreases.c. the volume flow rate per unit capacity decreases.d. the theoretical power per unit capacity decreases.e. the COP increases.