Question

In an air standard diesel cycle compression starts at 100kpa and 300k. the compression ratio is 16 to 1. The maximum cycle temperature is 2031K. Determine the thermal efficiency.

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Answer #1

1) An air-standard Otto cycle has a compression ratio of 9. At
the beginning of the compression process, the temperature is 20°C,
and the pressure is 100 kPa. The heat added is 500 kJ/kg. Determine
the cycle efficiency, work output, and the heat rejected
2) An air-standard Otto cycle operates with a minimum
temperature of 300 K and a maximum temperature of 1700 K. The
compression ratio of the cycle is 7. At the beginning of the
compression process, the...

The compression ratio of an air-standard Diesel cycle is 17 and
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At the beginning of the compression process of an air-standard
Diesel cycle operating with a compression ratio
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The cutoff ratio for the cycle is 1.5. Determine
(a) the temperature and pressure at the end of each process of
the cycle, (b) the thermal efficiency, (c) the mean
effective pressure, in MPa.

10) An air-standard Otto cycle has a compression ratio of 9. At
the beginning of the compression process, the temperature is 20°C,
and the pressure is 100 kPa. The heat added is 500 kJ/kg. Determine
the cycle efficiency, work output, and the heat rejected.
11)An air-standard Otto cycle operates with a minimum
temperature of 300 K and a maximum temperature of 1700 K. The
compression ratio of the cycle is 7. At the beginning of the
compression process, the pressure...

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b) Determine the specific fuel consumption. (kg/kJ)
c) What-if Scenario: What would the
thermal efficiency...

Consider a cold air-standard Diesel cycle. At the beginning of
compression, 102 kPa, and 300 K. The mass of air is 0.120 kg, the
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For a cold air-standard analysis use the following values: cp =
1.005 kJ/kgK, cv = 0.718 kJ/kgK, k=1.40, M=28.97 kg/kmol.
Determine the following :
(a) pressure at end of compression stroke, in kPa
(b) temperature at end of compression stroke, in K
(c) maximum temperature in...

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heats with temperature, determine the total irreversibility (or
lost work). Assume a source temperature is 2000 K and a sink
temperature is 300 K. Show solution step by step.

1. The compression ratio of an air powered diesel cycle is A = 18 and the cutting ratio is B = 2.2. The pressure of the air at the beginning of the compression process is C = 94 kPa and the temperature is D = 32 ° C. Considering that the specific temperatures change with temperature (using the air standard, not the cold air standard only, that is, using the relative specific volumes from the table) and accepting the gas...

A
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A Diesel cycle has a compression ratio of 12 and cut-off ratio
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the environment, which is at 30°C (303 K) and 100kPa. For the air
involved, it may be...

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