The Experts below are selected from a list of 45 Experts worldwide ranked by ideXlab platform

Lippe T.e. - One of the best experts on this subject based on the ideXlab platform.

  • OPTIMIZATION OF ADVANCED FILTER SYSTEMS
    National Energy Technology Laboratory (U.S.), 1998
    Co-Authors: Newby R.a., Uck G.j., Lippe T.e.
    Abstract:

    Reliable, maintainable and cost effective hot gas particulate filter technology is critical to the successful commercialization of advanced, coal-fired power generation technologies, such as IGCC and PFBC. In pilot plant testing, the operating reliability of hot gas particulate filters have been periodically compromised by process issues, such as process upsets and difficult ash cake behavior (ash bridging and sintering), and by design issues, such as cantilevered filter elements damaged by ash bridging, or excessively close packing of filtering surfaces resulting in unacceptable pressure drop or filtering surface plugging. This test experience has focused the issues and has helped to define advanced hot gas filter design concepts that offer higher reliability. Westinghouse has identified two advanced ceramic barrier filter concepts that are configured to minimize the possibility of ash bridge formation and to be robust against ash bridges should they occur. The ''inverted candle filter system'' uses arrays of thin-walled, ceramic candle-type filter elements with inside-surface filtering, and contains the filter elements in metal enclosures for complete separation from ash bridges. The ''sheet filter system'' uses ceramic, flat plate filter elements supported from vertical Pipe-Header arrays that provide geometry that avoids the buildup of ash bridges and allows free fall of the back-pulse released filter cake. The Optimization of Advanced Filter Systems program is being conducted to evaluate these two advanced designs and to ultimately demonstrate one of the concepts in pilot scale. In the Base Contract program, the subject of this report, Westinghouse has developed conceptual designs of the two advanced ceramic barrier filter systems to assess their performance, availability and cost potential, and to identify technical issues that may hinder the commercialization of the technologies. A plan for the Option I, bench-scale test program has also been developed based on the issues identified. The two advanced barrier filter systems have been found to have the potential to be significantly more reliable and less expensive to operate than standard ceramic candle filter system designs. Their key development requirements are the assessment of the design and manufacturing feasibility of the ceramic filter elements, and the small-scale demonstration of their conceptual reliability and availability merits

Vikesh Punwassi - One of the best experts on this subject based on the ideXlab platform.

  • Energy Savings through Pipe Header Optimization on a Cooling Tower Pumping Station
    Energy Engineering, 2016
    Co-Authors: Vikesh Punwassi
    Abstract:

    ABSTRACTEnergy savings in fluid pumping systems mainly rely on decreasing the flow rate of the fluid being pumped, in which case there are a few tried-and-tested solutions such as impeller trimming, variable speed drive (VSD) installations, replacing larger pumps with smaller pumps to match the system requirements, etc., but what can one do to optimize a system in which the flow rate of the fluid cannot be reduced?When the electrical components of the system cannot be modified to increase the efficiency of the system, one needs to look at optimizing other parts in the system. In this specific application, the main Pipe Header of the pumping system was optimized, thereby improving the systems flow rate and thus the energy savings was realized by switching off one 75 kW pump during production time to achieve a power reduction of 18.5% with a payback of four months.This article presents a case study in which a cooling tower pumping system originally operating using three 75-kW centrifugal pumps to circulate ...

Shvachko Natalia Anatolievna - One of the best experts on this subject based on the ideXlab platform.

  • Solar power Pipe Header for heat supply of heliosystems
    1992
    Co-Authors: Shvachko Natalia Anatolievna
    Abstract:

    The investigation is concerned with the solar power Header with vacuum and air insulation. The purpose of the work is to investigate heat engineering characteristics of the Headers with vacuum and air insulation and to develop the procedures for computing heliosystems employing them. The author has determined the temperatures of the Header components, the coefficients of heat loss of the heater, the parameters of air and vacuum insulation; has developed the structure of solar power Pipe Header, the procedure for engineering design of heat supply heliosystems; has determined heat engineering characteristics of the Header. The investigation results have been introduced as a part of a hangar heating system design project. The investigation results may find application in heat supply of construction, industrial and technological objectsAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio

Newby R.a. - One of the best experts on this subject based on the ideXlab platform.

  • OPTIMIZATION OF ADVANCED FILTER SYSTEMS
    National Energy Technology Laboratory (U.S.), 1998
    Co-Authors: Newby R.a., Uck G.j., Lippe T.e.
    Abstract:

    Reliable, maintainable and cost effective hot gas particulate filter technology is critical to the successful commercialization of advanced, coal-fired power generation technologies, such as IGCC and PFBC. In pilot plant testing, the operating reliability of hot gas particulate filters have been periodically compromised by process issues, such as process upsets and difficult ash cake behavior (ash bridging and sintering), and by design issues, such as cantilevered filter elements damaged by ash bridging, or excessively close packing of filtering surfaces resulting in unacceptable pressure drop or filtering surface plugging. This test experience has focused the issues and has helped to define advanced hot gas filter design concepts that offer higher reliability. Westinghouse has identified two advanced ceramic barrier filter concepts that are configured to minimize the possibility of ash bridge formation and to be robust against ash bridges should they occur. The ''inverted candle filter system'' uses arrays of thin-walled, ceramic candle-type filter elements with inside-surface filtering, and contains the filter elements in metal enclosures for complete separation from ash bridges. The ''sheet filter system'' uses ceramic, flat plate filter elements supported from vertical Pipe-Header arrays that provide geometry that avoids the buildup of ash bridges and allows free fall of the back-pulse released filter cake. The Optimization of Advanced Filter Systems program is being conducted to evaluate these two advanced designs and to ultimately demonstrate one of the concepts in pilot scale. In the Base Contract program, the subject of this report, Westinghouse has developed conceptual designs of the two advanced ceramic barrier filter systems to assess their performance, availability and cost potential, and to identify technical issues that may hinder the commercialization of the technologies. A plan for the Option I, bench-scale test program has also been developed based on the issues identified. The two advanced barrier filter systems have been found to have the potential to be significantly more reliable and less expensive to operate than standard ceramic candle filter system designs. Their key development requirements are the assessment of the design and manufacturing feasibility of the ceramic filter elements, and the small-scale demonstration of their conceptual reliability and availability merits

E.e. Smeltzer - One of the best experts on this subject based on the ideXlab platform.

  • Development of advanced hot gas ceramic filter systems
    1999
    Co-Authors: R.a. Newby, T.e. Lippert, G.j. Bruck, Alvin, E.e. Smeltzer
    Abstract:

    Reliable, maintainable and cost effective hot gas filter technology is critical to the successful commercialization of advanced, coal-fired power generation technologies. The operating reliability of currently developing and commercial hot gas ceramic filter systems have been periodically compromised by (1) process upsets and process equipment failures, and (2) flyash behavior resulting in ash bridging between neighboring filter elements, or poor ash drainage from the vessel. Termination of plant operation is generally required following such incidents, and damage to ceramic filter elements frequently results. Two advanced hot gas ceramic filter concepts have been conceived to minimize the possibility of ash bridge formation and to be robust against ash bridges and process upsets, should they occur. The inverted candle filter system uses arrays of thin-walled, ceramic candle-type filter elements with inside-surfacing filtering, and contains the filter elements in metal enclosures for complete separation from potential ash bridges. The sheet filter system uses ceramic, flat-plate filter elements supported on vertical Pipe-Header arrays that provide geometry that avoids the potential buildup of ash bridges and allows free fall of the back-pulse released filter cake. Conceptual designs of these two advanced hot gas ceramic filter systems have been prepared to assess their performance, availability andmore » cost potential, and to identify technical issues that may hinder their commercialization. The two advanced, hot gas ceramic filter systems are expected to have the potential to be significantly more reliable and less expensive to operate in PFBC and IGCC applications than current hot gas ceramic filter systems.« less