This term project primarily aims to make the students think out of the box and t

Question

This term project primarily aims to make the students think out of the box and try to solve a given problem using their existing knowledge/experience and by exploring the relevant information from books (e.g., use of library) and web search. The students will build confidence in solving unknown but relevant problems in the field. The students will improve their teamwork skills. The scope of the project is slightly above the level of usual class-work such as home works, exercise and practice problems As we know, pulp and paper manufacturing involves a great deal of humidity, which presents a preventive maintenance and corrosion challenge. A paper mill is a factory devoted to making paper from vegetable fibers such as wood pulp, old rags and other ingredients using a Fourdrinier machine or other type of paper machine. The modern paper mill uses large amounts of energy, water, and wood pulp in an efficient and complex series of processes, and control technology to produce a sheet of paper that can be used in diverse ways. Suppose that you were hired by a paper mill as an engineer, which is planning to use some of its waste products as an energy source from excess process steam, it means that the management is looking for installing turbine generators to produce electricity. Assume that the company has the following choices: Three 10MW turbine generators, or One 20MW and one 10MW turbine generator, or A single 30MW turbine generator. As a company's engineer, you were asked to give your opinion/recommendation about the three given choices to build this new electric co-generation facility. Also, the company advised you to consider cost, reliability and efficiency as the most important factors while giving your recommendation. What will be your choice/recommendation? Justify your answer by explaining the advantages and disadvantages of each choice and support your claim.

Explanation / Answer

1)cost consideration:

(i) For first case we can generate power at reduced cost here of all the cases

(ii)the cost is some what more than (i) case as per unit cost increases for 20 MW below 10MW cost same as (i)

(iii)the cost of generation is more in this case

2)reliability

(i)This is most reliable of all for any given load if any generator is shutted down because of any fault we will have a reserve capacity

(ii)here we can have reserve capacity of 10MW and normally operating 20 MW

(iii) here there is no reserve if it is faulted then zero power generation

3)efficiency is more when we operate generator close to full load and largers machines have more efficiency and very poor when operating at light loads

(i)operating at max efficiency in most of the cases is not posssible (example:11,12,21,22)

(ii)can operate at max efficiency by switching between 10MW and 20MW depending on load

(iii) at higher loads maximum efficiency but at light loads not economical

so myrecommendation is 2nd case(10MW=20MW)

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