A turbo-generator, 16-cylinder, V-type diesel engine has an air consumption of 3000 kg/hr per cylinder at a rated load and speed. This air is drawn in thru a filter by a centrifugal compressor direct connected to the exhaust gas turbine. The temperature of the air from the compressor is 145°C and a counter-flow air cooler reduces the air temperature to 45°C before it goes to the engine suction header. Cooling water enter the air cooler at 30'C and leaves at 38°C. Calculate the AMTD. a. 41°C c. 61°C h 51'C d 71'C

A turbo-generator, 16-cylinder, V-type diesel engine has an air consumption of 3000 kg/hr per cylinder at a rated load and speed. This air is drawn in thru a filter by a centrifugal compressor direct connected to the exhaust gas turbine. The temperature of the air from the compressor is 145°C and a counter-flow air cooler reduces the air temperature to 45°C before it goes to the engine suction header. Cooling water enter the air cooler at 30'C and leaves at 38°C. Calculate the AMTD. a. 41°C c. 61°C h 51'C d 71'C

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

Chapter45: Domestic Refrigerators And Freezers

Section: Chapter Questions

Problem 20RQ: Welded ______sealed compressors are normally used in household refrigerators.

See similar textbooks

Similar questions

The seasonal energy efficiency ratio (SEER) includes the energy used in the _____and _____cycles.
a turbo-charge 16 cylinder, vee diesel engine has an air consumption of 3000 kg/hr per cylinder at rated load and speed. this air is drawn in through afliter by a centrifugal compressor diresctly connected to the exhaust gas turbine. the temperature of the air from the compressor is 147 C and a counter flow cooler reduces the air temperature to 43 C before it goes to the engine suction header. cooling water enters air cooler at 31 C and leaves at 40 C. calculate the LMTD
A turbo-charged, 16 cylinder, Vee-type diesel engine has an air consumption 0f 3,000 kg/hr per cylinder at rated load and speed. This air is drawn in through a filter by a centrifugal compressor directly connected to the exhaust gas turbine. The temperature of the air from the compressor is 145°C before it goes to the engine suction header. Cooling water enters air cooler at 30°C and leaves at 38°C. Calculate the Arithmetic Mean Temperature Difference (AMTD). Show your complete solution.
Air with a pressure of 0.1 MPa and a temperature of 25oC with a flow rate of 5.29 kg/minute enters a three-stage reciprocating piston compressor with intercooler. The air is compressed polytropically (n = 1.3) to reach the pressure of 4 MPa. Calculate: a) The pressure at stage-2 and stage-3 so that the compression work is minimum? b) The compression work in each stage and the total compression work? c) The outlet air temperature from each stage's cylinder? d) The amount of heat transferred to each intercooler? e) How much air is needed for cooling in the intercooler if the allowable maximum temperature changes between the inlet and outlet of the intercooler is 8oC?
Steam expands in a steam turbine isentropically from intet to exhaust having an enthalpy drop=1200 kJ/kg. Assuming ideal conditions determine the mean diameter of wheel if the turbine were of: (1) Single impulse stage. (i) Single 50% reabron stage.
In an ammonia refrigerator , the pressure in the evaporator is 267. 58 KPa and theammonia at is 0.14 dry while at the exit is 0.86 dry . During compression the work done per kgof ammonia is 20 ,000 kg .m . Calculate volume of the vapor entering the compressor per minuteif the rate of ammonia circulation is 6.54 kg. The compressor has a volumetric efficiency of 90%and it runs at 150 rpm .The ratio of stroke to bore is 1 .Latent enthalpy of ammonia at basedon its evaporating pressure is 320 Kcal per kg and its latent specific volume of ammonia basedon its evaporating pressure is 0.436 m3 per kg .Specific volume of ammonia .A) 2.23 C) 2.46B) 3.23 D) 4.62
For an air-standard Brayton cycle the air flow rate entering the compressor is 10 m3/s at 300 K and 100 kPa. The pressure ratio is 12, and the cycle maximum temperature is 1100 K. Determine (a) the net power developed; (b) the cycle thermal efficiency.
Explain the benefits of adapting a compressor head to operate as a stirling engine ?
A turbo-charge, 16 cylinder, Vee-type diesel engine has an airconsumption of 3,000 kg/hr per cylinder at rated load and speed. Thisair is drawn in through a filter by a centrifugal compressor directlyconnected to the exhaust gas turbine. The temperature of the air fromthe compressor is 145 C and a counter flow air cooler reduces the air temperature to 45 C before it goes to the engine suction header. Cooling water enters air cooler at 30 C and leaves at 38 C. Calculatethe quantity of cooling water in m3/hr required to cool the total airrequirements of the engine at rated load and speed. ( hint: use AMTD)
A turbo-charge, 16 cylinder, Vee-type diesel engine has an airconsumption of 3,000 kg/hr per cylinder at rated load and speed. Thisair is drawn in through a filter by a centrifugal compressor directlyconnected to the exhaust gas turbine. The temperature of the air fromthe compressor is 145 C and a counter flow air cooler reduces the air temperature to 45 C before it goes to the engine suction header. Cooling water enters air cooler at 30 C and leaves at 38 C. Calculatethe quantity of cooling water in m3/hr required to cool the total airrequirements of the engine at rated load and speed. (Use AMTD)
In an ammonia refrigerator , the pressure in the evaporator is 267. 58 KPa and the ammonia at is 0.14 dry while at the exit is 0.86 dry . During compression the work done per kg of ammonia is 20 ,000 kg .m . Calculate volume of the vapor entering the compressor per minute if the rate of ammonia circulation is 6.54 kg. The compressor has a volumetric efficiency of 90% and it runs at 150 rpm .The ratio of stroke to bore is 1 .Latent enthalpy of ammonia at based on its evaporating pressure is 320 Kcal per kg and its latent specific volume of ammonia based on its evaporating pressure is 0.436 m3 per kg .Specific volume of ammonia WITH PH DIAGRAM
The thermal efficiency of the cycle.Notes: Assume the steam is reheated to the inlet temperature of the high-pressure turbine. The moisture content of the steam at the exit of the low-pressure turbine is not to exceed 9.5%