Laserfiche WebLink
<br />!:; <br />" . <br />, l <br />(-j <br />.,-otf <br />(~.) <br />c <br /> <br />at a larger scale than presently possible in the pilot plant <br />stage, and (2) batching (alternate injection and transport) <br />of the liquid CO2/coal slurry and saline water. Techniques <br />for storage, use, and handling of fine coal in a powerplant <br />environment are anticipated to be confirmed. In addition, <br />the loop is expected to provide data on the following: operating <br />factors and conditions for the commercial-size system; improved <br />capital, operating, and maintenance costs; and verification, <br />improvement, and/or limitations of equipment design. The <br />following variables will be observed or controlled during <br />the 9-month testing period. <br /> <br />* Changes in velocity <br />* Liquid CO2/coal ratio <br />* Viscosity <br />* Specific gravity (i.e., bulk density) <br />* Erosion <br />* Corrosion <br />* Pressure drop <br />* Simulated pipe breakage <br />* Temperature <br />* Coal particle size distribution on pumping characteristics <br />* Coal particle size change during trip <br />* Transportation characteristics of coal particle sizes <br />up to 1 by 0 inch in dense media CO2 <br />* Angle of repose of pumped coal <br />* Solubility of coal in liquid CO2 and vice versa <br />* Effect of high pressure <br />* Injection of saline water <br /> <br />Saline water cooling towers are relatively new and operating <br />experience is limited. However, initial field testing by <br />other groups has yielded promising results. The concept of <br />these towers is discussed in more detail in Appendix 1, Related <br />Technologies. Before saline water cooling towers can be deemed <br />acceptable, a demonstration to verify reliability for potential <br />application is essential. <br /> <br />Reclamation, in cooperation with the Colorado River Basin <br />Salinity Control Forum, is pursuing a technology verification <br />program and will obtain consulting services to assist in design <br />and installation of a small saline water cooling tower. A <br />cost-sharing arrangement among utilities, the tower manufacturer, <br />and Reclamation is expected to provide for a 2-5 year verification <br />program. Preliminary discussions have been held with Utah <br />Power and Light Company regarding siting the saline water <br />cooling towers at their Hunter Powerplant near Castle Dale, <br />Utah. <br /> <br />Results of the verification program will also be used to confirm <br />the economics of using saline water from the Price-San Rafael <br />River Basin in Utah, Glenwood-Dotsero Springs in Colorado, <br />and other saline water sources in the Colorado River Basin <br />for powerplant cooling. <br /> <br />19 <br />