Q15 In an ideal Otto cycle the compression ratio is (6). The initial pressure andtemperature of the air are (1 bar) and (100 °C). The maximum pressure in the cycle is(35 bar). For (1 Kg) of air flow, calculate the values of pressure, volume andtemperature at the four salient points of the cycle. What is the ratio of heat suppliedto the heat rejected? For air, R = 0.287 Kj/Kg.K and y = 1.4.AnswersPressure, (bar)Volume, (m³)Temperature, (K)Point 111.07373Point 212.28Point 335.0ASD0.178762178 هماد داود عبود2171Point 42.841.071062

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Answered: Q15 In an ideal Otto cycle the…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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The pressure and temperature at the beginning of compression of an air-standard Diesel cycle are 80 kPa and 300 K, respectively. At the end of the heat addition, the pressure is 6821 kPa and the temperature is 1950 K. Step 1 Determine the compression ratio. r = i Save for Later Attempts: 0 of 3 used Submit Answer Step 2 The parts of this question must be completed in order. This part will be available when you complete the part above. Ston 3
An ideal Diesel cycle has the air inlet temperature and pressure of 18 °C and 92 kPa respectively. The compression ratio is 20:1 while the maximum cycle temperature is 1,242 °C. Take Specific heat at constant pressure and constant volume for air as 1.005 kJ/kg K and 0.717 kJ/kg K respectively. Calculate the absolute temperature after the isentropic expansion process_to one decimal place and include the correct unit (absolute temperature). Add units
An air-standard Otto cycle has a compression ratio of 7.6. The temperature is 650 K at the end of the expansion process and the heat rejection from the cycle is 270 kJ/kg of air. Use air-standard approach (DO NOT use constant specific heats) to calculate the temperature values at the end of compression (T2=) and heat addition (T3=) processes in K. A typical P-v diagram for a Otto cycle is shown for your reference. From the choices below, drag and drop the closest answers to the provided boxes in the question. (in Turkish- aşağıdaki seçeneklerden hesapladığınız yanıtlara en yakın olanını sürükleyip ilgili kutuya taşıyınız) 3 630 | 675 || 707 751 770 1240 1280 1300 1340 1400 2.
The temperature at the beginning of the compression process of an air-standard Otto cycle with a compression ratio of 10 is 21 0C, the pressure is 101 kPa, and the mass flow rate of air in the engine is 580 kg/min. The maximum temperature during the cycle is 1300 0C.cp = 1.006 kJ/kg K cv = 0.717 kJ/kg K 1,calculate the power obtainable from the cycle in kW? Answer to 1 decimal place. 2. calculate the thermal efficiency of the cycle in %? Answer to 1 decimal place
The compression ratio of a Dual cycle is 16. The temperature and pressure at the beginning of the cycle are 1 barand 27C. The maximum pressure of the cycle is limited to 70 bar and heat supplied is limited to 675 kJ/kg of air.Find the temperature at point 3.cp = 1.005, cv = 0.718 and Y = 1.4.
The pressure and temperature at the beginning of compression of an air-standard Diesel cycle are 80 kPa and 300 K, respectively. At the end of the heat addition, the pressure is 6821 kPa and the temperature is 2050 K. Step 1 Your answer is correct. Determine the compression ratio. r = 25.36 Hint Attempts: 1 of 3 used Step 2 Determine the cutoff ratio. ľc= i Attempts: 0 of 3 used Submit Answer Save for Later Step 3 The parts of this question must be completed in order. This part will be available when you complete the part above.
The pressure and temperature at the beginning of compression of an air-standard Diesel cycle are 90 kPa and 300 K, respectively. At the end of the heat addition, the pressure is 6821 kPa and the temperature is 1950 K. what is the compression ratio
1.One kilogram of air was used as prime mover in a standard Otto cycle. The temperatures during the start and end of the compression stroke are 400K and 600K, respectively. Given that the displaced volume is 2m3 while the mean effective pressure is 40kPa. Determine the following a. Heat Added b. Efficiency c. Pressure Ratio d. Compression Ratio e. Pressure at the start of the intake stroke
Refer to the following figure for an Air Standard Otto Cycle. At the beginning of compression stroke: • Volume is 0.45 m³; • Pressure is 1 bar; and • Temperature is 30°C; At the end of the compression stroke: • Pressure is 11 bar; 210 kJ of heat is added at constant volume. Assuming the cycle is reversible. T(K) = 273 +T(°C); Determine the following to the approximation. • Pressures at point 4 bar • Swept Volume= m • Maximum Temperature of the cycle = °C • Net work output of the cycle = kJ • Heat Rejected from the cycle = kJ • Thermal efficiency of the cycle = • Mean Effective Pressure = bar % p (bar) 21.48 11 V₁ = 0.45 m³ Adiabatics → V (m³)
An air-standard Diesel cycle has a maximum temperature of 2000 K. At the beginning of compression, p₁ = 95 kPa and T₁ = 300 K. The mass of air is 12 g. For a compression ratio of 25, determine: (a) the net work of the cycle, in kJ. (b) the percent thermal efficiency. (c) the mean effective pressure, in kPa.
MTQ5 At the beginning of the compression process of an air-standard Diesel cycle operating with a compression ratio of 18, the temperature is 300 K and the pressure is 0.1 MPa. The cut-off ratio for the cycle is 2 and mass flow rate in the system is 1900 kg/hr. Cp = 1.006 kJ/kg K Cv = 0.717 kJ/kg K
The pressure and temperature at the beginning of compression of an air-standard Diesel cycle are 90 kPa and 300 K, respectively. At the end of the heat addition, the pressure is 6821 kPa and the temperature is 2250 K. Determine the compression ratio. r =

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