Plant Design – BC

The only strength of stress grade lumber that can be precisely determined without breaking the piece

A suitable material of construction to use with fuming sulfuric acid is

The cheapest material of construction for the storage of sodium hydroxide up to concentration of 75%

Which is the most suitable for transportation of sticky material?

Safety valves are provided in chemical equipment to guard against excessive

The joint efficiency for a seamless pipe is

What is passivation process which is often conducted in reactors or equipment during preventive maintenance?

A vessel is to be designed for a particular service with corrosion allowance of 0.25″.  The materials being selected are carbon steel, SS 304, SS 316 and monel. The cost of money is 12%.  Determine the most suitable material given 20 year study period.

A scope of of a plant design project that works on using indices to project the actual or present values of different equipment and other plant expenses essential to cost estimations

Calculate the cost  in 1998 of a heat exchanger with an area of 90 m2  using the following data:

Size of Exchanger, m2           Year         Cost in year bought, $

50                                      1988                     6500

120                                     1990                   11500

Chemical Engineering Plant Cost Index (CEPCI)

Year                CEPCI

1988                    318

1990                    358

1998                    382

A particular plant has designed an equipment and is estimating its probably cost.  An old equipment with a capacity of 100,000 tons/yr costs PhP 29,000,000.  Assuming m = 0.53, what will be the projected fixed capital investment if the design capacity is 47,000/yr?

A particular cost estimation for a particular product is enlisted below:

What is the total manufacturing cost?

A particular cost estimation for a particular product is enlisted below:

What is the Total Product Cost?

A particular cost estimation for a particular product is enlisted below:

If the product rate is 20,625; what is the breakeven point selling price?

Thickness calculated from the stress consideration alone gives its

For high pressure process equipment/vessels, the connected nozzle should be

Welded joints may be classified into

The economy of scale refers to the fact that as a plant, process, or piece of equipment gets larger, the cost increases at a rate smaller than the rate at which the size increases.
This is a direct consequence of the equation: (CostA/CostB)=(CapcityA/CapacityB)n . However, the economy of scale no longer applies when:

A junior engineer is to design a cylindrical pressurized vessel with a diameter of 7.2m that will carry a maximum internal pressure of 12 bar (abs) at temperature of 410oC.  The corrosion allowance is measured to be 0.25 inches and the vessel will be single-welded butt joint.  The material is SS 302 and the allowable stress at the given temperature is 57,200 kPa.  What is the practical wall

For standard steel vessels with no corrosion allowance, operating pressure of 250 psi. and ellipsoidal head. Brummerstedt has derived a design equation according to API-ASME code for estimating its fabricated cost. The cost in Peso is shown to be:

Ct = 1.76 V + 1.074 D^3 – 0.0495 DV – 0.0302 D^4

where:     V is the volume in cu. ft.

D is the vessel diameter in ft.

Determine the optimum diameter of a 50 cu. meter vessel.