Abstract: A system and method are disclosed which significantly improves the control of conductivity, concentration of free residual chlorine, basin level, and pH in forced-draft open recirculating cooling towers, with a basin capacity of 750,000 gallons of water or more. Conductivity, free residual chlorine, basin level, and pH are each controlled by a programmable PID controller operating in a sampled-data environment where the set point is a continuously updated rate-of-change set value for conductivity, free residual chlorine, basin level, and pH based on a near-time prior manipulated value. Programmable PID controller outputs to each control element a manipulated value to bring the rate-of-change of the process value equal to the rate-of-change of the set value.
Abstract: A gas turbine includes an exhaust cylinder comprising an inner circumferential slot, a diffuser shell disposed at least substantially concentrically within the exhaust cylinder and one or more baffle plates extending between the exhaust cylinder and the diffuser shell, a proximal end of each of the one or more baffle plates being fixed to the diffuser shell by one or more holding rings and a distal end of each of the one or more baffle plates being slidingly received within the inner circumferential slot of the exhaust cylinder. The one or more holding rings are secured to the diffuser shell, at one or more holding segments disposed along an inner diameter of the diffuser shell, via a plurality of radially inserted fastening members.
Abstract: A system and method for removing contaminants from a gas stream is provided. The method can include the steps of reacting the gas stream with ozone to form solid contaminant particles and separating the solid contaminant particles from the gas stream. The solid contaminant particles can he separated from the gas stream using an adsorption material.
Type:
Grant
Filed:
October 30, 2012
Date of Patent:
February 18, 2014
Assignee:
Calpine Corporation
Inventors:
Brian Benn, Allen Sonneville, John Farison, John Avery, Tom Bahning, Bruce Carlsen
Abstract: A system and method for removing contaminants from a gas stream is provided. The method can include the steps of reacting the gas stream with ozone to form solid contaminant particles and separating the solid contaminant particles from the gas stream. The solid contaminant particles can be separated from the gas stream using an adsorption material.
Type:
Grant
Filed:
January 14, 2011
Date of Patent:
April 2, 2013
Assignee:
Calpine Corporation
Inventors:
Brian Benn, Allen Sonneville, John Farison, John Avery, Tom Bahning, Bruce Carlsen
Abstract: A system and method for removing contaminants from a gas stream is provided. The method can include the steps of reacting the gas stream with ozone to form solid contaminant particles and separating the solid contaminant particles from the gas stream. The solid contaminant particles can he separated from the gas stream using an adsorption material.
Type:
Application
Filed:
October 30, 2012
Publication date:
March 7, 2013
Applicant:
Calpine Corporation
Inventors:
Brian Benn, Allen Sonneville, John Farison, John Avery, Tom Bahning, Bruce Carlsen
Abstract: A system and method for removing contaminants from a gas stream is provided. The method can include the steps of reacting the gas stream with ozone to form solid contaminant particles and separating the solid contaminant particles from the gas stream. The solid contaminant particles can be separated from the gas stream using an adsorption material.
Type:
Application
Filed:
January 14, 2011
Publication date:
July 19, 2012
Applicant:
CALPINE CORPORATION
Inventors:
Brian Benn, Allen Sonneville, John Farison, John Avery, Tom Bahning, Bruce Carlsen