why is pressure constant for the combustion process of a diesel cycle?

Expert Solution

samet mamat answered 2 years ago

A diesel cycle operates at and receives 400BTU of energy from the combustion process. The hot...

A diesel cycle operates at and receives 400BTU of energy from the combustion process. The hot air standard is k=1.3. The diesel engine receives air at a pressure of 14.5psia, 90°F, and 0.55lb. What is the mean effective pressure of the engine? The cut-off ratio is 12% of the volume displacement and the percent clearance is 8%.

explain why constant volume combustion gives a higher indicated fuel conversion efficiency than constant pressure combustion...

explain why constant volume combustion gives a higher indicated fuel conversion efficiency than constant pressure combustion for the same compression ratio.

Determine the adiabatic combustion temperature at constant pressure and at constant volume for two of the...

Determine the adiabatic combustion temperature at constant pressure and at constant volume for two of the fuels of personal choice. Graphically show that this corresponds to the product temperature where the heat of reaction is zero.

combustion engine. Discuss the thermodynamics of the Otto cycle for a combustion engine. Why does the...

combustion engine. Discuss the thermodynamics of the Otto cycle for a combustion engine. Why does the efficiency depend on the compression ratio? What is the problem with that? Why is the Otto cycle better than a steam engine? Or, what is the main innovation

In a dual-combustion cycle, the maximum temperature is 2000 ?C and the maximum pressure is 70...

In a dual-combustion cycle, the maximum temperature is 2000 ?C and the maximum pressure is 70 bar. Calculate the cycle efficiency and the mean effective pressure when the pressure and temperature at the start of compression are 1 bar and 17 ?C, respectively. The compression ratio is 18/1. ANSWERS(63.7%; 10.54 bar)

How many constant volume processes are modeled when analyzing an Air Standard Diesel cycle? Question 10...

How many constant volume processes are modeled when analyzing an Air Standard Diesel cycle? Question 10 options: A) 2 B) 4 C) 1 D) 3 E) 0

Compare the Otto cycle, Diesel cycle, and Stirling cycle. a: Draw the P-v diagrams and label...

Compare the Otto cycle, Diesel cycle, and Stirling cycle. a: Draw the P-v diagrams and label all the processes. b: Draw the corresponding T-s diagrams for the three power cycles and label all the processes. c: Draw the corresponding T-v diagrams for the three power cycles and label all the processes. d: Discuss the similarity and the difference about their thermal efficiencies explicitly. e: Discuss how to improve the thermal efficiencies of the Otto cycle, the Diesel cycle, and the...

A) For a particular process that is carried out at constant pressure, q = 145 kJ...

A) For a particular process that is carried out at constant pressure, q = 145 kJ and w = -35 kJ. Therefore, = 180 kJ and ΔH = 145 kJ. ΔE = 145 kJ and ΔH = 180 kJ. ΔE = 110 kJ and ΔH = 145 kJ. ΔE = 145 kJ and ΔH = 110 kJ. B) Dry chemical hand warmers utilize the oxidation of iron to form iron oxide according to the following reaction: 4Fe(s)+3O2(g)→2Fe2O3(s) Standard thermodynamic quantities...

Find ΔE° for the reaction below if the process is carried out at a constant pressure...

Find ΔE° for the reaction below if the process is carried out at a constant pressure of 1.00 atm andΔV (the volume change) = -24.5 L. (1 L ∙ atm = 101 J) 2 CO(g) + O2 (g) → 2 CO2(g) ΔH° = -566. kJ Select one: A. +2.47 kJ B. -568 kJ C. -2.47 kJ D. -564 kJ

Did you know that diesel engines don’t have spark plugs? The cycle that diesel engines undergo...

Did you know that diesel engines don’t have spark plugs? The cycle that diesel engines undergo involves adiabatically compressing the air in the cylinder, then injecting some fuel. When the fuel is injected it ignites if the temperature of the air in the cylinder is above the fuel’s flashpoint. Most diesel engines have a compression ratio (the ratio of the maximum to minimum volume) between 14:1 and 25:1. a) For the given range of compression ratios, what is the range...

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