Prototype unit design

Figure 12.8-9. (a) schematic drawing of component parts and their arrangement in the prototype unit design 1 and (b) a picture of the assembled prototype. 

Figure 12.8-10. Schematic drawing of the prototype unit design 1 showing the locations of the temperature, humidity and total VOC sensors.

AMJ, located in Great Neck, NY, sells industrial equipment for electrodialysis and Donnan dialysis. Its special products division has tested successfully a prototype unit designed and built by AMJ for nickel recovery systems. At the time we were working in electrodialysis (1974), AMJ was engaged in further development work with Special Products under a secrecy agreement. 

The field test was conducted from May 2003, towards the end of the Severe Acute Respiratory Syndrome (SARS) outbreak in Hong Kong, until January 2004. The students taking part in the field tests were properly trained and equipped with medical safety equipment. Air samples collected at the reception area was designated as control samples (Fig. 12.9-12b). The Prototype Unit was located in the doctor s consultation room (Fig. 12.9-12c) and was operated 10 h/day, 6 days/week during the six months test period. 

The simple prototype unit discussed here is capable of continuously monitoring a process stream with rapid response to surface tension changes, and accuracy within 1-2%. Initial investigations indicate that a commercial unit based on this design would be capable of data acquisition, alarm monitoring, and/or closed-loop control of a process variable in a laboratory, pilot plant or production scale installation. A commercial instrument based on the work done in this laboratory is being developed and marketed. 

In the EDS process development, bench scale research, operation of small pilot units, and engineering design and technology studies are being integrated with operation of a 250 T/D pilot plant and a 70 T/D FLEXICOKING prototype unit. ( Service Mark)... 

In the following sections we will present some procedures and examples which show how LM can be designed in order to have a similar behaviour evolution for different device scales such as laboratory device (small scale) and prototype units (medium scale). 

Dimensional similitude is based on principles of similarity and uses dimensionless ratios of the physical and chemical parameters that govern the working model to design the scaled-up prototype. This method is followed when the prototypical unit is expected to be dimensionally similar to the small-scale unit. The degree of success in using dimensional similitude as an approach to scaleup depends mainly on the extent to which the physical parameters necessary to achieve a desired result influence the process. 

After initial tests have established satisfactory operation of the prototype unit, a full-scale demonstration unit of 200 MW could be installed. At the conclusion of this latter work, the process should be applicable to virtually any size utility boiler. A conceptual design module, one of four required for a 1000 MW power plant, is shown in Figure 7. 

All three designs are nearly completed and production of parts for the prototype units has begun. Two prototype units for all three designs will be complete by November 2002. Performance testing of the units will commence immediately thereafter to verify aerodynamic performance and efficiency of each design. 

AMJ has a completely new design comprising the use of tubular cells. A one-membrane prototype unit was built by AMJ and successfully tested as a nickel recovery system by Special Products. It appears that the tubular design could be adopted to make two-membrane cells for our electrodialysis process. Details are given in Appendix B. 

In a series of studies, quadmplex DNA was targeted [59, 63, 64]. In the first of these, a prototype disulfide DCL consisting of six possible disulfide combinations was allowed to interact with a human telomeric quadruplex DNA. Two constituents were selected by the process, of which one was an expected combination of an acridone unit, designed to interact with the terminal G tetrad of a parallel quadruplex, and a tetrapeptide sequence, known to have quadruplex recognition properties. The other hit was more surprisingly the tetrapeptide dimer (Scheme 5.14). 

The NP 300 embodies a pressurized water reactor (PWR) In a compact NSSS design, enclosed In a small egg-shaped containment. This compact NSSS design Is based on the extensive experience of TECHNICATOME In this area, with 13 PWR In operation or In construction and namely 9 years of operation of a prototype unit (CAP) at Cadarache In France. 

Currently, there are two main technical solutions for the construction of SOFC flat or tubular. Cells with tubular structures have been proposed by Westinghouse (later bought by Siemens) and work as an experimental-prototype unit with power in the range 100-300 kW across the world (12 such units have been constructed in total). Units with output of 100 kW run at atmospheric pressure in the combined heat and power (CHP) configiuation, and with output of 220 kW as pressurized units in a gas turbine system. Cells with flat design are much easier to produce, but entail the use of certain seals and related operational problems. They are heralded for use mainly in household apphcations as co-generation units. 

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