What are the advantages and disadvantages of the PI controller, PD controller and PID controller ?

NOTE: please write clearly or type it in a laptop or pc

ADVANCED DYNAMICS AND CONROL SYSTEMS

methane gas CH4 enters a steady flow combustion chamber at 25 ^oC and 1 atm and is burned with 40 percent excess air, which also enters at 25 ^oC and 1 atm. After combustion, the products are allowed to cool to 25 ^oC. Assume complete combustion, determine the heat transfer per kmol of CH4

A plane wall is a composite of three materials, A, B and C. The wall of material A has uniform heat generation q˙ of 100000 W/m³, kA = 75 W/m K, and thickness LA = 60 mm. The wall material B has no generation with kB = 150 W/m K and thickness LB = 20 mm. The wall material C has no generation with kC = 100 W/m K and thickness LC = 20 mm The inner surface of material A is well insulated, while the outer surface of material C is cooled by a water stream with T= 30 °C and h = 1000 W/m² K.

1. Sketch the temperature distribution that exists in the composite under steady-state conditions.

2. Determine the temperature T0 , T1 inner and outer surface of material A and T2, T3 (outer surface of material B and C)

Design 4 bevel gears for a shaft driven bicycle. Make appropriate assumptions.

A gas turbine receives 10 kg/s of helium and expands it polytropically (n = 1.8) from 1100K and 600 kPa to 100 kPa. Determine the power produced, the entropy change of the helium through the gas turbine (kW/K) and the entropy change of the surroundings (kW/K).

An adiabatic tank, 0.5 m3, is initially evacuated and charged with steam at 500 kPa and 300 C. The final tank pressure is 500 kPa. Determine the final temperature and the entropy production.

A gas turbine receives 10 kg/s of helium and expands it polytropically (n = 1.8) from 1100K and 600 kPa to 100 kPa. Determine the power produced, the entropy change of the helium through the gas turbine (kW/K) and the entropy change of the surroundings (kW/K).

answer: 28,221 kW, 10.53 kW/K (Engineering thermodynamics)

in c++

Write a function that takes a C string as an input parameter and reverses the string. The function should use two pointers, front and rear. The front pointer should initially reference the first character in the string, and the rear pointer should initially reference the last character in the string. Reverse the string by swapping the characters referenced by front and rear, then increment front to point to the next character and decrement rear to point to the preceding character, and so on, until the entire string is reversed. Write a main program to test your function on various strings of both even and odd length.

in c++

Write a function that takes a C string as an input parameter and reverses the string. The function should use two pointers, front and rear. The front pointer should initially reference the first character in the string, and the rear pointer should initially reference the last character in the string. Reverse the string by swapping the characters referenced by front and rear, then increment front to point to the next character and decrement rear to point to the preceding character, and so on, until the entire string is reversed. Write a main program to test your function on various strings of both even and odd length.

In c++

Write a program that uses a DYNAMIC two-dimensional array to store the highest and lowest temperatures for each month of the year (temperature is a decimal value). The program should output the highest and lowest temperatures for the year. Your program must consist of the following functions:

a. Function getData: This function reads and stores data in the two-dimensional array.

b. Function indexHighTemp: This function returns the index of the highest high temperature in the array.

c. Function indexLowTemp: This function returns the index of the lowest low temperature in the array.

These functions must all have the appropriate parameters.

How do we use DSC and kinetics in composite improvements.

(c) A titanium hip replacement ball joint of 23.000 mm diameter was precision ground and required to be finished to a tolerance of +/- 0.002 mm The inspection procedure resulted in the parts being measured whilst still hot at 80 C after grinding. If the coefficient of linear expansion of titanium is 10 microns/metre deg C, determine 1) The linear expansion relative to the reference temperature of 20 deg C 2) The overall result of measuring parts hot on the finished size and the type of engineering fit that may result Comment on the likelihood of the +/- 0.002 mm tolerance being obtainable and should a correction factor be applied to the measurement ?

** Re- differentiate clearly Nusselt theory for liquid film condensation along vertical surface.

Using your knowledge of dislocations in crystalline materials such as metals, explain how solid solution strengthening works using diagrams

Discussion #1: Business Forms

Choose which business form (sole proprietorship, "S" Corporation, "C" Corporation, LLC, 501C3) you would use for one of the following businesses that you would like to own if you could:

• Shoe store with best friend

• A community fresh produce market

• Paralegal consulting services

• Catering business — three acquaintances who met on a food website

• Technology Consulting services

• 3 Guys and a Girl Car Repair

• Bookkeeping business — five accounting graduates' startup

• Interactive gaming design- two family members

• Second hand clothing consignment shop-(one dressmaker and a seamstress)

• Home services business- large business with one knowledgeable owner and one banker/investor.

• Franchise food business

2. Explain:

• Who are the owners/founders besides yourself if any?

• Who are your potential customers?

• What makes your business unique in the marketplace?

3. What are the strengths? After you choose a business form, explain the following:

What are the strengths or benefits of this type of business form concerning taxes and liability based on the type of ownership and customer?

4. What are the weaknesses? Do you need a Board of Directors? What are the pitfalls of this type of structure and why based on the type of business being conducted?