Feasibility analysis

Feasibility analysis helps us to determine whether a single reactive distillation process will produce on-spec products. It is carried out at the very beginning of the design and can provide guidance for conceptual design. One useful approach is the difference point method in which tray-by-tray calculations are carried out to determine the feasibility. 

An advantage of this method is that the interaction between reaction and separation can be visualized. The entire procedure can be carried out using relatively simple calculations. Moreover, the theory is based on basic material balances. 

Because Vt-= 1, it will be dropped for subsequent development. Moving negative terms in Eqs. (6.6) and (6.7) to the right-hand side (RHS), we have 

Similarly, manipulating the first and third terms in Eq. (6.10), one obtains 

The objective of the feasibility analysis is to eliminate from any further consideration all sequences of symbolic attributes and combinations of their 

The feasibility analysis is a dynamic process that is, working with the same collections of combinations today and again next year may produce entirely different results. We are not doing any objective assessment in absolute terms but an assessment driven by our current priorities and our understanding of the state of the art, which obviously changes with time. 

The dot on the left represents a case in which we need a very low level of novelty (an improvement of an existing patent) and we need it soon. The dot on the right represents a situation in which we are looking for a very high level of novelty but where this invention will be considered for implementation in the future, more than five years from now. In these two extreme cases, our feasibility assessment of a given potential design concept 

There are two main reasons why a given combination may be useless for us. First, we eliminate combinations violating laws of nature, for example a design concept for a water distribution system in which water is flowing uphill in an open channel. Next, we eliminate combinations representing design concepts that we believe that cannot be implemented at the required time. In this case, we must be particularly careful, because our immediate responses very often are wrong. Particularly when we see an unusual combination, our first and natural reaction will be to reject it as infeasible. However, if we think about it for a moment, we may realize that this combination could actually be feasible and should be preserved. 

It is a good practice while doing the feasibility analysis to use a simple procedure, which could be called One NO and two YES. All the steps must be conducted, remembering our priority, which was determined earlier in other words, the procedure needs to be performed as a situated action in which all specific decisions are done in the context of our priorities, and this has a tremendous impact on our decisions. This is a four-step procedure  

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Feasibility Analysis The selection procedure is performed by an evaluation or technical and economic considerations. The technical evaluation determines whether a given option will work as planned. Some typical considerations follow ... 

In-house or outside environmental experts should be brought into the study at an early stage. By having these people in "on the ground floor, feasibility analysis, cost estimates, and environmental impact studies will be more accurate with fewer surprises later in the project. 

Feasibility Analysis Phase The point in a pollution prevention program at which waste reduction options are evaluated technically, economically and environmentally. The results are used to select options to be recommended for implementation. 

Wang Y, Li L, Hu L, Zhuang L, Lu J, Xu B. 2003. A feasibility analysis for alkaline membrane direct methanol fuel cell Thermodynamic disadvantages versus kinetic advantages. Electrochem Commun 5 662. 

Benemann, J.R. 1997. Feasibility analysis of photobiological hydrogen production. Int J Hydrogen Energy 22 979-987. 

Benemann JR (1997) Feasibility analysis of photobiological hydrogen production. Int J Hydrogen Energy 22 979-987 Zaborsky OR (1998) Biohydrogen, Plenum Press, New York Benemann JR, Miyamoto K, Hallenbeck PC (1980) Bioengineering aspects of biophysics. Enzyme Microb. Technol. 2 103-111... 

A feasibility analysis is prepared for the purpose of determining that a proposed investment meets the minimum requirements established... 

TABLE 9-27 Checklist of Required Information for a Feasibility Analysis... 

The development of the information required for Table 9-27 was discussed previously in Sec. 9 with the exception of marketing information. An important document for a feasibility analysis is the marketing data so that the latest income projections can be included for management s consideration. As a minimum, the tabulation of sales volume, sales prices, and market share both domestically and globally should be included. Table 9-28 shows a sample of such marketing information. 

Having assessed the market performance to date, it is now possible to develop the feasibility analysis one step further. If a viable plant is to be constructed, a potential market for any new supplies of nitric... 

In the feasibility analysis, extensive research is performed on the product/service, industry, market, organizational feasibility, and financial feasibility of the opportunity. This is an extremely important component... 

When pursuing opportunities within a corporation, the feasibility analysis can be used to weigh opportunities, or projects, against each other. This type of entrepreneurship is called corporate entrepreneurship or intrapreneurship (Morris, 2002). 

Today, there is an increasing interest in the theoretical study and the practical application of integrated reactive separation processes such as reactive distillation columns [1-3] or membrane-assisted reactors [37]. However, to date there is no general method available for designing such processes. For practical applications, it is important to be able to evaluate quickly whether a certain reactive separation process is a suitable candidate to reach certain targets. Therefore, feasibility analysis tools being based on minimal thermodynamic and kinetic information of the considered system are valuable. 

It should be noted that the equivalent continuously operated process of the batch reactive membrane process is the membrane reactor depicted in Fig. 4.26(b). Here, the spatial coordinate z replaces the time coordinate of the batch process. Feasibility analysis has the task of estimating the retentate composition which is attainable at infinite reactor length. 

The basic principles for the design and pre-feasibility analysis of hydrogen-based autonomous power systems are also given. The main outcome of the techno-economic analysis is the identification of technical and non-technical barriers and respective potential benefits for the implementation of hydrogen-based autonomous power systems in the short term and medium term as well. The analysis performed in this section of the book is based on real technology and market parameters acquired during the operation of these autonomous power systems rather than on theoretical assumptions. 

Conceptual Commercial Design and Commercial Feasibility Analysis for... 

Shah M, Dmevich, Balachandran U, Dorris SE, and Lee TH. Technoeconomic feasibility analysis of hydrogen production by integrated ceramic membrane system. Proceedings of the 2001 DOE Hydrogen Program Review NREL/CP-570-30535. 

The permeate flux (7) is an important parameter in the design and economic feasibility analysis of the UF separation process. Hydrodynamics of membrane modules have an... 

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