Dish/engines

A dish-engine system uses a dish-shaped parabolic reflector, or a collection of smaller mirrors in the shape of a dish, to focus the sun s rays onto a rccciv-... 

Parabolic troughs Solar power tower Dish/engine... 

Figure 3.23 Perforation at a dish-shaped depression on the internal surface of a large-diameter steel pipe. A large tubercle capped the depression but was dislodged during tube sectioning. (Courtesy of National Association of Corrosion Engineers, Corrosion 89 Paper No. 197 by H. M. Herro.)...

You have just been hired as the chemical engineer for a small soup company. They have just found that their cans of Cream of Spinach soup have become contaminated with a bacteria whose Latin name is retchiosis barfitosum, which fortunately is not lethal but causes serious discomfort. The cans had been sterilized by heating for 1 h in an oven at 200°F, but this procedure apparently was not adequate. We need to sterilize the prepared soup cans to kill the bacteria, which will multiply on the shelf Bacteria concentrations are determined by coating a known amount of the material on a Petri dish and culturing it so that each bacterium forms a colony that can be counted on the dish. 

George Washington University researchers cloned human embiyos and nurtured them in a Petri dish for several days. Tlie project provoked protests from ethicists, politicians, and critics of genetic engineering,... 

SES Dish Stirling System Technology Kockums 4-95 Stirling Engine NTR pic... 

Fresnel lens-type PV concentrators have operated at 26% efficiency (Amonix, Inc.). The efficiency of concentrating PV designs can reach 25-30%, and DSG thermal systems can also reach 30%. Similarly, the efficiency of dish concentrators using Stirling heat engines is also about 30%. Table 1.42 provides a summary of solar collector costs, efficiencies, and suppliers. 

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