QUESTION 1 A manufacturer conducted an experiment for an evaporator capacity 533 kW cooling and designed for high COP of 1.8 when using lithium bromide plus water in an absorption refrigeration system. The evaporator operates 20 C, condenser 40 C & absorber 45 C supplying 1.4 kg/s of water plus lithium bromide solution to the generator. For a condenser size of 608 kW, determine: Heat provided by the generator & absorber capacity in kW (equating overall heat balance of all heat exchanger). Show in the Solution Paper: Heat provided by the generator Provide in the Answer Box: Absorber Capacity in kW Answer in two decimal places

QUESTION 1 A manufacturer conducted an experiment for an evaporator capacity 533 kW cooling and designed for high COP of 1.8 when using lithium bromide plus water in an absorption refrigeration system. The evaporator operates 20 C, condenser 40 C & absorber 45 C supplying 1.4 kg/s of water plus lithium bromide solution to the generator. For a condenser size of 608 kW, determine: Heat provided by the generator & absorber capacity in kW (equating overall heat balance of all heat exchanger). Show in the Solution Paper: Heat provided by the generator Provide in the Answer Box: Absorber Capacity in kW Answer in two decimal places

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

4. The values of a vapor compression refrigeration cycle were given below. Calculate the values of refrigerant flow rate, refrigeration capacity, and the COP of the system. T1= Evaporator water outlet = 10 °C T2= Evaporator water inlet = 16 °C T3= Condenser water inlet = 16 °C T4= Condenser water outlet = 22°C Cooling water flow rate = 1.5 L/min Heating water flow rate = 1.5 L/min Enthalpy of R134a in evaporator outlet = 305 kj/kg, Enthalpy of R134a in evaporator inlet =115 kj/kg Enthalpy of R134a in condenser inlet =327 kj/kg
In a Refrigerant 11 system ,one evaporator is to provide 210 kw of refrigerant at 0 0C and another evaporator is to provide 224 kw at -200C . The system uses two stage compression with intercooling and removal of flash gas. The condenser temp is 400C . Given that, h2=389kJ/kg, h4=416kJ/kg Compute the following: a.) mass flow rate at low stage compressor (m1)ANSWER: 1.25377 kg/s b.) mass flow rate at high stage compressor (m3)ANSWER: 2.90255 kg/s c.) low stage compressor workANSWER: 12.96406 kw d.) high stage compressor workANSWER: 78.68819 kw e.) total compressor workANSWER: 91.65226 kw f.) COPANSWER: 4.73528 g.) heat rejected in the condenserANSWER: 525.65226 kw
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 & HP
A food storage chamber requires a refrigeration system of 15 ton capacity operating at an evaporator temperature of -25.2 deg C and a condenser tempreature of 35.8 deg C. Refrigerant (R-717) is used and the system operates under saturated conditions. Determine: a.) C.O.P. b.) Refrigerant flow rate c.) Rate of heat flow removed by condense
Required information Refrigerant-134a enters the condenser of a steady-flow Carnot refrigerator as a saturated vapor at 65.0 psia, and it leaves with a quality of 0.05. The heat absorption from the refrigerated space takes place at a pressure of 30 psia. Determine the coefficient of performance. (Round the final answer to three decimal places.) The coefficient of performance is
saturated liquid from condenser Pcond = 900 kPa mcond =0.05 kg/s mcomp refrigerant to compressor ank- 500 kPa 3 rim mup Başka yönergeler almak için tıklayın Figure illustrates a vapor separator that is part of a refrigeration system. Saturated liquid R134a leaves the condenser at State 1 with a mass flow rate of 0.05 kg/s and pressure of 900 kPa. This refrigerant enters the vapor separator (a large, insulated tank) through a valve. The pressure in the tank is 500 kPa. There is no pressure drop due to flow through the tank (i.e., the pressure at States 2, 3, and 5 are all the same). The flow at State 2 is two-phase. The liquid portion of this flow falls to the bottom of the tank due to gravity while the vapor portion remains at the top. The saturated liquid is drawn from the bottom of the tank (at State 3). The saturated vapor is drawn off of the top of the tank at State 5 and fed to a compressor. Assume that the vapor separator is adiabatic, rigid, and operating at steady state. a) The…
An NH; vapor compression refrigeration system has a condensing temperature of 25°C and an evaporating temperature of -10°C. The refrigerating capacity is 7 tons. If the suction vapor was superheated from -10°C to 10 C, Determine: a) refrigerant flow rate; b) Volumetric flow at compressor suction; c) theoretical power required; d) Heat rejected in the condenser; e) Refrigerating Effect; f) COP
3) A cascade refrigeration system uses R22 in the low temp unit and R12 in the high temp unit. The system develops 28 kW of refrigeration at -45°C. The R12 system operates at -12°C evaporating temp and 40°C condensing temp. There is a 10° overlap of temperatures in the cascade condenser. Calculate the power required by R22 compressor, and the power required R12 compressor.
An NH, vapor compression refrigeration system has a condensing temperature of 25•C and an evaporating temperature of -10°C. The refrigerating capacity is 7 tons. By Creating a schematic diagram and ph diagram determine the ff: a) refrigerant flow rate; b) volumetric flow rate at compressor suction; c) theoretical power required; d) heat rejected in the condenser; e) Refrigerating Effect and f) Coefficient of performance
A refrigeration system using refrigerant 12 is to have a refrigerating capacity of 80 kW. The cycle is a standard vapor-compression cycle in which the evaporating temperature is -15°C and the condensing temperature 30°C. At the entrance to the evaporator, what is the fraction of vapor in the mixture expressed on a mass basis? 0.97 0.29 0.92 0.27
The values of a vapor compression refrigeration cycle were given below. Calculate the values ofrefrigerant flow rate, refrigeration capacity, and the COP of the system.T1= Evaporator water outlet = 10 °CT2= Evaporator water inlet = 16 °CT3= Condenser water inlet = 16 °CT4= Condenser water outlet = 22°CCooling water flow rate = 1.5 L/minHeating water flow rate = 1.5 L/minEnthalpy of R134a in evaporator outlet = 305 kj/kg,Enthalpy of R134a in evaporator inlet =115 kj/kgEnthalpy of R134a in condenser inlet =327 kj/kg