Engineering/data requirements

To develop the engineering data required for the design and operation of the commercial plant... 

To examine the pyrolysis reaction of the scrap tires, pulverized scrap tires were heated in a quartz tube by an electric furnace (h). Then the continuous pyrolysis test plants in Table I were constructed to get the engineering data required for the design of an actual plant,... 

See Engineering/Data Requirements Agreement Plan (E/D RAP or ED RAP) for additional related information. 

E/DRAP Engineering/Data Requirements Agreement Plan... 

Data compilations, the first recourse for an engineering calculation requiring physical property or parameter data, are often incomplete or do not contain data within the appropriate range of temperature or pressure (6—9). For this reason, correlation and estimation methods play an important role in apphed thermodynamics. 

The family of short curves in Fig. 29-45 shows the power efficiency of conventional refrigeration systems. The curves for the latter are taken from the Engineering Data Book, Gas Processors Suppliers Association, Tulsa, Oklahoma. The data refer to the evaporator temperature as the point at which refrigeration is removed. If the refrigeration is used to cool a stream over a temperature interval, the efficiency is obviously somewhat less. The short curves in Fig. 29-45 are for several refrigeration-temperature intervals. A comparison of these curves with the expander curve shows that the refrigeration power requirement by expansion compares favorably with mechanical refrigeration below 360° R (—100° F). The expander efficiency is favored by lower temperature at which heat is to be removed. 

Database for management of sanitary and storm wastewater collection systems. Maintains field operations data including safety history, engineering data, inspection recoids, and work orders. Requires 640K memory and hard disk. 

Therefore, when developing an estimate of process engineering time required, it is important to recognize the amount of effort that may be necessary to collect physical property data before any real work can commence. This same concern exists when evaluating K values and activity data for systems. 

A key issue also concerns the foundation requirements of the generator set. Most manufacturers will provide data on their machines requirements, but the detailed design of the block and its interface with the engine bedplate require close attention. Sometimes it is possible to provide... 

The scientific and technical literature abounds with much information, adding slowly to the massive factual data required for the design engineer who relies solely on his own literature search. 

Both HELP and EPIC are complete engineering design models and the user can obtain the data required to run either of them. The funds available were insufficient for evaluating more than two models on two data sets. Because our goal was to evaluate models that will be useful in ET landfill cover design and evaluation, we evaluated HELP and EPIC. 

The purpose of the EDS phase is threefold (1) to support the development of a request for proposal (RFP) for a full-scale facility (2) to support the certification decision of the Under Secretary of Defense for Acquisition and Technology, as directed by Public Law 105-261 and (3) to support documentation required for the National Environmental Policy Act (NEPA) and the data required for a permit under the Resource Conservation and Recovery Act (RCRA). Each EDS comprises two parts an EDP and engineering tests and studies to generate required data that were not obtained during the earlier demonstration test phase. 

It is obvious that such an assessment is formidable, technically difficult, and extremely expensive. Since an environmental source assessment study is required to characterize the total pollution potential of all waste streams, the sampling program must be more extensive than those conducted for the acquisition of process or control engineering data. Assessment sampling is more complete in that all waste streams are sampled and no attempt is made to limit sampling to a preselected number of process streams. The sampling is also more comprehensive in that all substances of potential environmental concern must be detectable above some minimum level of concern. These requiements of completeness and comprehensiveness call for a strategy of approach in which the philosophy and structure ensure maximum utilization of available resources. 

The use of these data to design similar systems for other compounds or situations may require an extrapolation beyond the data s range. In these situations the use of the data requires careful engineering judgment. 

Dispersion. Dispersion or London-van der Waals forces are ubiquitous. The most rigorous calculations of such forces are based on an analysis of the macroscopic electrodynamic properties of the interacting media. However, such a full description is exceptionally demanding both computationally and in terms of the physical property data required. For engineering applications there is a need to adopt a procedure for calculation which accurately represents the results of modem theory yet has more modest computational and data needs. An efficient approach is to use an effective Lifshitz-Hamaker constant for flat plates with a Hamaker geometric factor [9]. Effective Lifshitz-Hamaker constants may be calculated from readily available optical and dielectric data [10]. 

In some handbooks, for instance the "Polymer Handbook" (Brandrup et al., 1966,1975, 1989, 1999), "Physical Constants of Linear Homopolymers" (Lewis, 1968), "International Plastics Handbook for the Technologist, Engineer and User" (Saechtling, 1988), "Polymer Data Handbook" (Mark, 1999) and similar compilations, one finds part of the data required, but in many cases the property needed cannot be obtained from such sources. The major aim of the present book is twofold ... 

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