Problem 1. Explain the definition of the unit of quantity, the definition of SI, and the basic unit of SI. Also, select one of the SI basic units and explain the definition of the unit in detail. However, write it down so that high school students can understand it. Summarize the above in A4.
In: Mechanical Engineering
Design a robot that can support humanity from the spread of COVID-19 . Draw suitable diagrams and focus your explanation towards the robot subsystems.
In: Mechanical Engineering
What could be some of the reasons for the discrepancies between the Hilpert’s equation or the Churchill & Bernstein’s equation.
In: Mechanical Engineering
Research question: How is ceiling welding possible? (It welds in the overhead (overhead) position, how can the droplets that dissolve from the electrode tip not be lowered downward by gravity but transferred to the welding bath upward?)
In: Mechanical Engineering
In: Mechanical Engineering
Superheated vapor enters the turbine at 10 MPa, 480°C, and the condenser pressure is 7.5 kPa of a steam Rankine power cycle. Isentropic efficiencies of the turbine and pump are 84% and 73%, respectively. Determine for the cycle
a. Sketch the cycle of a T-s diagram. Indicate the isobars with their values and the values for temperature and entropy.
b. The heat transfer to the working fluid passing through the steam generator, in kJ per kg of steam flowing.
c. The thermal efficiency.
d. Compute the entropy generated by the turbine per unit of mas of steam flowing.
e. The heat transfer from the working fluid passing through the condenser to the cooling water, in kJ per kg of steam flowing. [Hint: this refers to the cooling tower]
In: Mechanical Engineering
Manufacture methods course:
working process which will increase strength of metals? Draw the process.
explain mechanical mechanisms.
objective in real life.
In: Mechanical Engineering
1 kg of saturated steam at 1000 kPa is in a piston-cylinder and the massless cylinder is held in place by pins. The pins are removed and the system suddenly and adiabatically expands to 5x its original volume before the piston hits a pair of upper pins. The expansion takes place against an atmosphere is 60 kPa. What is the final specific internal energy of the system? The answer will be in kJ/kg.
In: Mechanical Engineering
I need to write an essay about the following:
Suppose you are in job interview of your dream job and the question
asked to you ''OUT OF ALL CANDİDATES ,WHY WE SHOULD HİRE YOU?"
It must have
1.Introduction
2.Developing ideas -Minimum 2 paragraph
3. Conclusion
In: Mechanical Engineering
how do you relate the air fuel ratio to the equivalence ratio, and the ‘lambda’ ratio
In: Mechanical Engineering
List and explain the measuring elements (stages) of a dial indicator starting with the primary sensing element
In: Mechanical Engineering
Briefly explain the difference between point source and nonpoint source water pollution? Provide one example each
In: Mechanical Engineering
An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air is at 95 kPa and 27°C, and 730 kJ/kg of heat is transferred to air during the constant-volume heat-addition process. Take into account the variation of specific heats with temperature. The gas constant of air is R = 0.287 kJ/kg·K.
Determine:
(a) the pressure and temperature at the end of the heat addition process
(b) the net work output
(c) the thermal efficiency
(d) the mean effective pressure for the cycle.
In: Mechanical Engineering
A shaft in a mechanical system is manufactured from an acetal polymer and must have a minimum life of two years. If the shaft length is 50cm and it supports a load of 80N with a fatigue frequency of 10 cycles / min. Determine the minimum diameter required for the shaft.
In: Mechanical Engineering
what are head pump, head turbine and head loss and their formulas?
In: Mechanical Engineering