There are ten (10) basic principles of designing economical production. One of them
is utilising special process characteristics. Discuss about this characteristic and
provide one (1) example to support your explanation. Provide sketching when it is
possible in order to support your explanation.

Discuss three (3) key elements of Design for Manufacture (DFM). Elaborate for each
of them.

A power plant operates on a regenerative vapor power cycle with one open feedwater heater. Steam enters the first turbine stage at 12 MPa, 560°C and expands to 1 MPa, where some of the steam is extracted and diverted to the open feedwater heater operating at 1 MPa. The remaining steam expands through the second turbine stage to the condenser pressure of 50 kPa. Saturated liquid exits the open feedwater heater at 1 MPa. The net power output for the cycle is 330 MW. Assume that both turbine stages and both pumps have an isentropic efficiency of 90%.


Determine:

(a) the percent cycle thermal efficiency.

(b) the mass flow rate into the first turbine stage, in kg/s.

(c) the rate of entropy production in the open feedwater heater, in kW/K.

Develop a simple MIS (Management Information System) that consists of a simple database (a text file). The system manages to dynamically input record/data into the database. The data from the database can be sorted, searched and updated. User also should be able to add new records/data, remove any data and etc.
Here are some ideas of MIS that can be developed:
1. Hotel reservation system.
2. Students management system.
3. Payroll management system.
4. Bus/Railway/Plane ticketing system.
5. Clinic record management system.

Reflect a triangle whose vertices are ?(2, 3), ?(6, 3) and ?(4, 8) about the line ? = 3? + 4. Determine the final coordinates of the triangle. Sketch the initial and final positions

A gourmet coffee shop in downtown Vancouver uses a Periodic Inventory System and is open 200 days a year. They sell on an average 75 pounds of KONA coffee beams a day. (Demand can be assumed to be distributed normally with a standard deviation of 15 lbs. per day.) After (fix cost = $16 per order), beans are always shipped from Hawaii within exactly 4 days. Per-pound annual holding costs for the beans are $3 and the cycle service level established by management is 98%. a. What is the economic order quantity (EOQ) for Kona coffee beans? b. Determine the Periodic Review Interval? c. What level of safety stock is required? d. What is the Target Inventory Level that is required to achieve these results? e. What are the total annual holding costs of stock for Kona coffee beans? f. What are the total annual ordering costs for Kona coffee beans? g. At the time the inventory was taken, the on hand was 300 lbs with the schedule receipts at 250 lbs with no back order. How much should the company order?

Write a detailed report to a technical manager on the following items. You work as field engineer at Menco Company and dealing with repair of Getinge autoclaves. You recently attended to three autoclaves at Uro Hospital. The first and second autoclave had error of liquid cycle activated while running, you bypassed the door emergency switch and its functional but need replacement of faulty spares. The third had vaccum pump failure, faulty vaccum pump. The report to be detailed and fit two A4 pages.

If Indiana County, Pennsylvania, coal with M = 3% and A = 8.5% is burned with 10% excess air, calculate the actual air fuel ratio and the ideal Orsat analysis (no CO and no unburned carbon). Also, determine the theoretical Orsat analysis if the HHV of the refuse is 5500 kJ/kg and the % CO in the dry flue gas is 0.2% of the dry flue gas.

Q1- Why has the enormous potential of shale gas, as a viable fuel source, only recently (10-15 years ago) received serious attention?

What are the various sensors used in hybrid vehicles and Detailed explanation of the same

Q1- Explain how industry uses natural gas (cite a specific industry example)?

Q2- Why is natural gas projected to become increasingly popular as a prime fuel source, compared with coal, for electricity generation?

ASSIGNMENT WEEK 1 (Metal Casting)

1. Name the two basic categories of casting processes. (CO1,C2)


2. What properties determine the quality of a sand mold for sand casting?


3. What is the difference between vacuum permanent-mold casting and vacuum molding?


4. What are the most common metals used in die casting?

5. Which die-casting machines usually have a higher production rate, cold-chamber or hotchamber, and why?


6. What is flash in die casting?


7. What are some of the operations required in sand casting after the casting is removed from the mold?


8. What are some of the general defects encountered in casting processes? Name and briefly describe three.