Parallel engineering

In practice, the workflow of a project may be different from the idealized frame presented above. For example, parallel engineering may be used to improve the overall efficiency. However, recognizing tbe priority of conceptual tasks and minimizing the structural revisions remain key factors. 

In view of the considerable interest in sulfur dioxide reduction to sulfur both in this country and abroad, Allied Chemical extended the use of this technology to control sulfur dioxide emissions from other metallurgical operations as well as from fossil fuel combustion. The experience gained in design, construction, and operation of the large Canadian facility provided the perspective for continuing process research and parallel engineering development. 

James F. Leathrum and John A. Board. The parallel fast multipole algorithm in three dimensions. Technical report. Dept, of Electrical Engineering, Duke University, Durham, 1992. 

W. Gropp, E. Lusk and A. Skjellum, Using MPI Portable Parallel Programming with Message-Passing Interface, Scientific and Engineering Computation series, 1994. 

Y. Hwang, R. Das, F. H. Saltz, M. Hadoscek and B. R. Brooks, Parallelizing molecular dynamics programs for distributed-memory machines , IEEE Computational Science and Engineering, Vol 2, no 2, 18-29, 1995. 

Since the full-load speeds of the two engines are different, they will not be running at their respective full-load speeds when running in parallel, but somewhere between the two. It will be seen that the maximum output will occur when Gg is operating at its full load. Consider triangles F, F A2 and F, FgS,. Then... 

First, one pump running in a parallel system tends to suffer from cavitation because operation to the right of the BF.P indicates that the NPSHr of the pump rises drastically. To survive this condition, you should use dual mechanical seals on these pumps. Dual or double mechanical seals can withstand cavitation better than a single seal. There is a discussion on this in the mechanical seal chapter of this book. Many engineers perceive that parallel pumps are problematic becau.se they appear to suffer a lot of premature seal failure. Parallel pumps deserve double seals even if it s only a cold water system. 

The use of multi-funetional teams also enables eoneurrent engineering, sinee all the team members are aware of the effeet of their funetional input to the projeet on other areas, as diseussed earlier. The team are able to plan aetivities that may be earried out in parallel. While sometimes obtaining reasonable results, this approaeh often faees a number of obstaeles (Towner, 1994) ... 

This section provides an overview of the engineering technologies and applications that are currently applicable to the study and remediation of releases of hazardous wastes and constituents from RCRA (Resource Conservation and Recovery Act) facilities and those sites which parallel Superfund sites. Activities which would be termed removal actions or expedited response actions under CERCLA (Comprehensive Environmental Recovery-Cleanup and Liability Act) are also covered in this section. Information presented in this section represent excerpts from document EPA/625/4-89/020 (September 1989). 

Because of the multitude of engineering materials and the profusion of material-oriented literature it is not possible to describe specific engineering practices in detail in a single chapter. However, we can outline general criteria for parallel evaluation of various materials that can assist in proper selection. The following is a list of general guidelines that can assist in material selection ... 

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