Compare and contrast distillation, absorption and extraction. Tabulate your answers.
In: Mechanical Engineering
Explain the least square best fit for second order for any one
of the complex shapes of
your choice.
In: Mechanical Engineering
We Will Choose An Iron Based Material average tensile 50 Mpa (material We will calculate Sigma D, Re, Rm, Stress Amplitude and Maximum Stress. How much tensile amplitude can the haight diagram max tensile
(I need the table and values in any sample that I will determine myself. values can be matched.)
(can be ready example just back down to 50Mpa)
In: Mechanical Engineering
When the start button is pressed, the conveyor belt is working. Products on the tape are counted by the sensor. Conveyor belt stops when there are 20 products. The lamp that gives the full information is on. The whole system will stop after the lamp lights for 15 seconds. Create the appropriate PLC system. Draw the ladder diagram?
In: Mechanical Engineering
For a spherical thermal reactor with a water moderator in a homogeneous mixture, what is the value of the infinite multiplication factor necessary for the reactor to be critical? The radius of the reactor is 1 m.
In: Mechanical Engineering
An in-line, six-cylinder, 6.6-liter, four-stroke cycle SI engine with multipoint port fuel injection operates át 3000 RPM, with a volumetric efficiency of 89% and AF of 15:1. The engine has bore and stroke'related by S = 0.90 B. The engine has an exhaust pipe between engine and catalytic converter that can be approximated as a round pipe, 1.5 m long and 6.5 cm inside diameter. Exhaust temperature leaving the engine is 477°C, and the average wall temperature of the exhaust pipe is 227°C. Calculate the exhaust temperature entering catalytic converter [°C].
In: Mechanical Engineering
Statement:
Selection of compressor and refrigerant for HVAC system that is
operating on Vapor Compression Refrigeration System. The heat load
is 120,000 BTU/hr and temperature is to be maintained at space is
50C.
Step 1:
Select ambient and environmental conditions
Step 2:
Select refrigerant, preliminary calculations, use of property
charts, suction discharge pressure of compressor to achieve
required cooling, compressor capacity etc.
Step 3:
Select compressor (Stage, rpm, displacement, size etc)
need detailed solution
In: Mechanical Engineering
Water is flowing in a compressor steadily at 20 kPa and 40 oC to 1.7 MPa and 500 oC. The power input to the compressor is determined to be 5 MW. The water enters the compressor at a height of 5 m and leaves at 10 m of height. The velocities of the water coming in and out of the compressor are 50 m/s and 180 m/s respectively. a) Determine the work input per unit mass for the water flowing through the compressor. b) Calculate required mass of flow rate of the water.
In: Mechanical Engineering
Find the change of entropy of a 2kg steam initially at 1MPa, 200C in a rigid tank until heated to 300C.
In: Mechanical Engineering
ANSWER THE FOLLOWING
1. What is a machine guide?
2. Why is a machine guide required in the manufacturing industry?
3. Provide 5 examples of machine guide, either by drawing or actual photos
4. When building a machine guide, what are the things to be considered? Why?
5. What difficulties did you encounter in making the shop exercise?
6. What is a fitment? Describe its importance in the manufacturing industry
7. What are tolerances? Why is it important?
8. Provide a flowchart diagram of how tolerances are analyzed and implemented.
9. What are tolerances?
10. To buy, a back saw what specification is needed?
11. When buying a claw hammer what specification is needed?
12. Give (2) functions of machine guide?
In: Mechanical Engineering
A steam power plant operates on an ideal regenerative Rankine cycle. Steam enters the turbine at 6 MPa and 450oC and is condensed in the condenser at 20 kPa. Steam is extracted from the turbine at 0.4 MPa to heat the feedwater in an open feedwater heater. Water leaves the feedwater heater as a saturated liquid. Show the cycle on a T-s diagram and determine the fraction of steam extracted from the turbine for the open feedwater heater.
In: Mechanical Engineering
How applied mechanics terminologies such as moment, moment of inertia and frictional matters are involved to theoretically design hydro power and wind mills for renewable energy supply?
Show the core design parameter’s hydro power and wind mills. Related to them (terminologies in their usual applications) to perspective of Hydro-power and wind mills for theoretical design perfections
In: Mechanical Engineering
1. A turbojet engine is fitted to an aircraft flying at M = 0.65 in conditions where the
ambient temperature is 216 K and the ambient pressure is 18.75 kPa. You are to assume
adiabatic flow.
The following data on the engine are known:
Intake efficiency ?? = 1.00 Intake maximum pressure ratio ?? ??? = 0.95 Compressor pressure ratio ?? = 12 Compressor polytropic efficiency ?? = 1 Combustion chamber efficiency ?? = 1 Turbine Inlet temperature ?4 = 1796 ? Calculate:
a. The total temperature and pressure at entry to the compressor.
b. The total temperature and pressure at entry to the combustion chamber.
c. The fuel-to-air ratio in the combustion chamber.
In: Mechanical Engineering
In: Mechanical Engineering
In: Mechanical Engineering