A Diesel cycle engine is analyzed using the air standard method. Given the conditions at state 1, compression ratio (r), and cutoff ratio (rc) determine the efficiency and other values listed below.

Note: The gas constant for air is R=0.287 kJ/kg-K.

Given Values

T1 (K) = 338

P1 (kPa) = 130

r = 14.5

rc = 1.25

a) Determine the specific internal energy (kJ/kg) at state 1.

b) Determine the relative specific volume at state 1.

c) Determine the relative specific volume at state 2.

d) Determine the temperature (K) at state 2.

e) Determine the pressure (kPa) at state 2.

f) Determine the specific enthalpy (kJ/kg) at state 2.

g) Determine the temperature (K) at state 3.

h) Determine the pressure (kPa) at state 3.

i) Determine the specific enthalpy (kJ/kg) at state 3.

j) Determine the relative specific volume at state 3.

k) Determine the relative specific volume at state 4.

l) Determine the temperature (K) at state 4.

m) Determine the pressure (kPa) at state 4.

n) Determine the specific internal energy (kJ/kg) at state 4.

o) Determine the net work per cycle (kJ/kg) of the engine.

p) Determine the heat addition per cycle (kJ/kg) of the engine.

q) Determine the efficiency (%) of the engine.

2.2 kW of power will be trasnmitted via chain-sprocket system. Rotational speed of input shaft is 20 rpm. Required approximate rotational speed of input shaft is 20 rpm. Required approximate rotational speed for the out shaft is 7 rpm. Approximate distance between center lines of input and output shafts should be 900 mm. This chain-sprocket system is used for an elevator and it is asked to use single or multiple DIN 8187 chain with 31.75 mm pitch.

a) Calculate number of teeth on sprocket, which is on output shaft, is number of teeth on the sprocket on input shaft is 19.

b) Calculate input power for selection of chain and select the appropriate chain type.

c) Calculate pitch circle diameters of driving and driven sprockets, linear velocity of chain, length of chain, (number of chain links), and exact center line distance between driving and driven sprocket.

d) Calculate factor of safety of the selected chain.

b) A 15 MW gas turbine plant operates with a two-stage compression and a two-stage

expansion. The high-pressure turbine (HPT) drives both low-pressure compressor

(LPC) and high-pressure compressor (HPC). A low-pressure turbine (LPT) is connected

to a generator for electricity generation The overall pressure ratio is 16/1 and the

maximum cycle temperature, which is at the inlet of the HPT, is 900°C. The gases

leaving the HPT are reheated to 850°C before entering the LPT. Both compressors have

equal pressure ratios with an intercooler between the stages, and the intercooling

process is complete. Air enters the LPC at a temperature and pressure of 27°C and

100 kPa respectively. The exhaust gases leaving the LPT are passed through a heat

exchanger to heat the air leaving the HPC. Thermal ratio of the heat exchanger is 0.78.

The isentropic efficiencies for both compressors and turbines are 85%. The mass of fuel

injected is negligibly small. Assuming that the kinetic and potential energy changes are

negligibly small,

i. sketch the cycle on a temperature-entropy (T-s) diagram,

ii. determine the required air mass flow rate for the gas turbine, kg/s,

iii. determine the thermal efficiency of the power plant, %, and

iv. determine the work ratio.

For air, take cpa = 1.005 kJ/kg.K and γa = 1.40

For gas, take cpg = 1.14 kJ/kg.K and γg = 1.35

Your task is to build a wastewater treatment plant to handle all of the domestic wastewater produced by a housing estate. Using population equivalent, PE = 65000, design, describe and calculate briefly the sizes of all the unit processes in the treatment plant that are going to be built. You may assume the value that is not given.

a-Arrange in a table the number of phases that can be observed at R.T in the range starting from zero to 6.67%C in an "Equilibrium Phase Diagram" and the corresponding three of the mechanical properties.b- Explain with examples the solid-solution, eutectic and peritectic observed phases.c- Draw the .microstructure of each phase

Following readings are obtained in a roundness tester

(5,0) (6,60). (4,120) (3,180), (2,240) (3,300)

Compute Least Square Limacon Circle parameters.

Compute roundness error.

Please, I want a paragraph about ABS materiel, with a table of properties of ABS.

I need it in an experimental measurement and techniques project. NO PLAGIARISM PLEASE

Q1: answer the following without explaining anything wanted to compare my answers with an expert, please do it immediately, I have no time:

2. A___________ instrument may be used to trip an inductive proximity sensor if needed

1. Liquid
2. Gaseous
3. Reflective
4. Metallic

3. A non-metallic object displaces the normal_________ air, between the capcitive plates when the object enters the electrostatic field:

1. Dry
2. Lonized
3. Dielectric
4. Moist

4. Some Hall effect sensors require the mounting of a separate _______ to trigger the device

1. Magnet
2. Brace
3. Power supply
4. LED

5. ___________ oscillator circuits produce a more accurate output frequency than pure LC or RC components alone.

1. Capacitor
2. Crystal
3. Resistor
4. Inductor

6. Mount a capacitive proximity sensor so that it is pointed __________ the target location.

1. Above
2. Away from
3. Toward
4. Below

7. Hall Effect sensors Generate very small internal_______________

1. Currents
2. Resistances
3. Voltages
4. Temperatures

8. Inductive proximity sensors can detect___________ metals, such as aluminum, at shorter distances than ferrous metals because these targets are not easily magnetized.

1. Nonferrous
2. Oxidized
3. Shiny
4. Flat

1. Mount a photoelectric sensor so that it’s pointed _________ the target location.

1. Toward
2. Above
3. Away from
4. Below

Consider a very small particle of mass, m, dropped in a fluid. The particle experiences a drag force, FD. The constant that relates the drag force to the velocity V is K. Determine the distance covered as the partcile accelerate from rest to 50 percent of its terminal velocity, Vt, in terms of K, m, and acceleration due to gravity, g.

Hello! do you know how to save the output file of result in Ansys fluent 15.0 ? Because I want to save the number of nodes with the values of the velocity, pressure, temperature,etc. After I completed each task, so I want to save all these data and I want to compare the results with the next calculation. Thank you in advance! really appreciate you help! I will thumb you up!

An external gear has a module of 4, 52 teeth in the gear, 28 teeth in the pinion, a pressure angle of 20°, pinion rotational speed of 1500 rpm, face width of 20 mm, and gear and pinion material having modulus of elasticity of 206 GPa and Poisson’s ratio of 0.3. The Hertzian contact pressure is 0.980 GPa. The lubricant used has an absolute viscosity of 0.3 Pa-s and pressure viscosity coefficient of 2.2 x 10^-8 m²/N. The root-mean-square surface roughness for both the pinion and gear is 0.1 µm. Determine the following:

1. Transmitted power
2. Minimum film thickness
3. The film parameter

Determine all possible two-stage compound gear combinations that will give an approximation to the Naperian base 2.71828. Limit tooth numbers to between 18 and 80. Determine the arrangement that gives the smallest error.

Could you use mathcad since my professor is suggesting it with the code?

A parachutist whose mass is 65 kg drops from a helicopter hovering 2000 m above the ground and falls toward the ground under the influence of gravity. Assume that the force due to air resistance is proportional to the velocity of the​ parachutist, with the proportionality constant b₁ = 20 ​N-sec/m when the chute is closed and b₂ = 90 ​N-sec/m when the chute is open. If the chute does not open until the velocity of the parachutist reaches 25 ​m/sec, after how many seconds will the parachutist reach the​ ground? Assume that the acceleration due to gravity is 9.81 m divided by sec squared.
The parachutist will reach the ground after
_______ seconds.
​(Round to two decimal places as​ needed.)