Cooling generators

Fig. 3. Comparison of o2one-generator constmction (a) single-fluid-cooled (b) doublefluid-cooled generator.

The vertical tube (water-cooled) generator consists of two concentric tubes the outer of which is cooled with water and acts as the ground electrode. Feed gas is introduced into the top of the inner stainless steel tube (which serves as the high voltage electrode), exits at the bottom of the outer tube, flows upward through the aimular space (which contains the electric discharge), and emerges at the top of the outer tube into a product gas manifold. 

Another feature of high-speed spinning is that the fiber macro structure becomes non-uniform, with more orientation and crystallinity near the fiber surface than in the interior. This is a result of non-uniform solidification, where rapid cooling generates a lower temperature and higher viscosity at the surface. This leads to an oriented surface skin which supports the spinning stress, while higher temperatures within the interior allow more relaxation and disorientation. 

The heat generated as the alloy adsorbs the hydrogen, and the cooling generated by desorption as the hydrides release hydrogen, has potential for some interesting cogeneration applications, which would increase system efficiency where such applications are employed. 

Figure 15. Katabatic airflows. On clear nights surface cooling generates a flow of cold, dense air down hillside slopes (after the ARIC, 2006)...

The importance of this information as a process analysis tool is clearly shown if we look at how these distributions can be altered. Figure 9.14 shows these same distribution ranges and how they change under the effects of temperature. As temperature decreases the number of fine particles (0-10 pm and 10-50 pm) increases, however warming the mixture then re-cooling, generates a final distribution with far fewer fine particles. 

HYDROGEN COOLED GENERATOR - High performance is provided by effective cooling and loss reduction. 

Turbine generator 16 stages, condensing type 16.4 MWe rating with air cooled generator... 

Carbon Monoxide Conversion - Gas from the secondary reformer is cooled (generating steam) to about 375 C, which is the usual temperature for the shift conversion reaction ... 

In any plant there are certain obvious hazards, for example, fire hazard in shale shaker area of offshore facility or generator are hydrogen cooled generators in power plants. HAZID is not meant to identify such kinds of hazards only. There needs to be some realty and lateral thinking power while carrying out the study. Also there always exist certain chances of a hazard in a complex event, on account of a series of activities. In the study this can be revealed. These characteristics shall include but are not limited to the following ... 

GLOSSARY INTRODUCTION SYNCHRONOUS GENERATORS AIR-COOLED GENERATORS HYDROGEN-COOLED GENERATORS HYDROGEN/WATER-COOLED GENERATORS Excitation System Operation... 

A hmited amount of running maintenance is required in addition to data logging. This includes periodic lubrication of valve gear (monthly or quarterly) and H2 replenishment for hydrogen-cooled generators (three times a month). 

Here, the three terms shows the heat conduction, the Joule heat generated by the current, and the heating or cooling generated by Thomson effect, respectively. L, A, p, and S denote the temperature, thermal conductivity, specific electric resistivity, and relative Seebeck coefficient, respectively, and J is the current density determined by the electric potential and temperature in Eq. 2. 

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