Disclosed is a methodology for determination and prediction of heat exchanger fouling, such as polymer fouling in the circulation loop that forms part of the heat exchanger system. The buildup of a polymer or other undesired material deposit in the heat exchanger provides a distinctive temperature signature (thermal gradient) on the surface of the heat exchanger asset, which is visualized using a thermographic camera. Coupling images (thermograms) from the camera with a machine learning algorithm identifies fouling and, with knowledge of the historical data of the asset and operating and ambient conditions, enables prediction of future fouling. The thermal images provide several types, or orders, of temperature information that are indicative of locations vulnerable to fouling. In one case, the method uses machine learning applied to time-based temperature change/gradient information to detect hidden polymer fouling in areas that form part of the heat exchanger asset.

A pipeline AC mitigation SSD Marker Station has a shape and land surface area footprint that are similar to conventional pipeline location markers or corrosion test stations. The SSD Marker Station includes an SSD device that connects an underground metallic pipeline to an underground grounding conductor. The SSD Marker Station further includes a disconnect switch configured to disconnect the SSD device from the pipeline and/or grounding conductor. Also included is a pair of testing ports that are in electrical communication with the SSD device. Testing of the SSD device thereby requires only operating the disconnect switch to isolate the SSD device from the pipeline and/or grounding connector and performing an electrical measurement across the testing ports. In embodiments, the SSD Marker Station meets all requirements applicable to a pipeline location marker, and can be installed in lieu of a pipeline location marker.

A method for evaluating the delayed fracture characteristics of a metal material. The method including placing a solution-retaining material impregnated with a solution containing a chloride and having a pH of 3.5 or more on a stress loading part of the metal material, and maintaining a state in which the solution-retaining material is held at a deliquescence humidity of the chloride to thereby corrode the stress loading part.

A method for evaluating the delayed fracture characteristics of a metal material. The method including placing a solution-retaining material impregnated with a solution containing a chloride and having a pH of 3.5 or more on an edge face of the metal material, and maintaining a state in which the solution-retaining material is held at a deliquescence humidity of the chloride to thereby corrode the edge face.

The present disclosure addresses the problem of providing an optical plastic film such that rainbow unevenness when viewed with naked eyes and blackout when viewed with polarized sunglasses can be suppressed without any axis alignment or increase in the in-plane phase difference. Disclosed is an optical plastic film satisfying the following conditions 1 and 2: <Condition 1> when a large sample with a size of 200 mm×300 mm is cut out from a plastic film, the large sample is divided into 30 small samples of 40 mm×50 mm, a region of 30 mm×40 mm obtained by excluding 5 mm from each edge of each small sample is subdivided into 47,000 or more regions, and an in-plane phase difference of each subdivided region is then measured, a percentage of small samples in which an average of the in-plane phase difference of each region measured is 50 nm or more and 1,200 nm or less, among the 30 small samples is 50% or more; and <Condition 2> when the 30 small samples are processed in the same manner as in condition 1 and an angle of slow axis of each subdivided region of each small sample is measured, a percentage of small samples in which a standard deviation a calculated from the angle of slow axis of each region measured is 0.8 degrees or more, among the 30 small samples is 50% or more.

The present disclosure addresses the problem of providing an optical plastic film such that rainbow unevenness when viewed with naked eyes and blackout when viewed with polarized sunglasses can be suppressed without any axis alignment or increase in the in-plane phase difference. Disclosed is an optical plastic film satisfying the following conditions 1 and 2: <Condition 1> when a large sample with a size of 200 mm×300 mm is cut out from a plastic film, the large sample is divided into 30 small samples of 40 mm×50 mm, a region of 30 mm×40 mm obtained by excluding 5 mm from each edge of each small sample is subdivided into 47,000 or more regions, and an in-plane phase difference of each subdivided region is then measured, a percentage of small samples in which an average of the in-plane phase difference of each region measured is 50 nm or more and 1,200 nm or less, among the 30 small samples is 50% or more; and <Condition 2> when the 30 small samples are processed in the same manner as in condition 1 and an angle of slow axis of each subdivided region of each small sample is measured, a percentage of small samples in which a standard deviation a calculated from the angle of slow axis of each region measured is 0.8 degrees or more, among the 30 small samples is 50% or more.

The disclosed systems and method for evaluating the integrity of media pads within an adiabatic cooling system includes at least one media compartment containing at least one media coupon that is representative of at least one of the media pads. The system is adapted to be fluidly coupled to a source of representative process water and to provide such water to the at least one media compartment. A source of airflow fluidly is also coupled to the at least one media compartment. The flow of representative process water and airflow to the media coupon within the media compartment simulates the operation of the adiabatic cooling system. The at least one media coupon may then be analyzed as representative of media pads within the adiabatic cooling system.

The disclosure relates to systems, methods and apparatus for analyzing an infrastructure system including measurement of a parameter associated with the infrastructure system, electronically recording the measured parameter as a data, transferring the data to an infrastructure unit which may be remote from the infrastructure system, analyzing the data to generate a risk model, and predicting a characteristic of the infrastructure system according to the risk. An implementation plan may be generated, and/or maintenance services may be performed as per the characteristic that is predicted.

The disclosure relates to systems, methods and apparatus for analyzing an infrastructure system including measurement of a parameter associated with the infrastructure system, electronically recording the measured parameter as a data, transferring the data to an infrastructure unit which may be remote from the infrastructure system, analyzing the data to generate a risk model, and predicting a characteristic of the infrastructure system according to the risk. An implementation plan may be generated, and/or maintenance services may be performed as per the characteristic that is predicted.

Systems and methods for estimating electrical component degradation include a processor programmed to: compute a cumulative degradation value for an electrical system component of an electrical system based on an operating parameter of the electrical system component; and to compute a corrosion compensated cumulative degradation value for the electrical system component based on the cumulative degradation value and a corrosion rating of the electrical system.