A method for determining fatigue lifetime consumption of an engine component, by defining a reference thermal load cycle, the reference thermal load cycle being characterized by a reference load cycle amplitude and a reference load cycle time, and determining a reference load cycle lifetime consumption. The method includes measuring a temperature of the engine component, determining a thermal load cycle based upon the temperature measurement, determining a load cycle amplitude, determining a load cycle time, relating the load cycle time to the reference load cycle time, thereby determining a load cycle time factor, relating the load cycle amplitude to the reference load cycle amplitude, thereby determining a load cycle amplitude factor, combining the load cycle time factor and the load cycle amplitude factor into a combined load cycle factor for determining a load cycle lifetime consumption.

An apparatus and a process for testing fluid from a heat exchanger. A first fluid from a heat exchanger to be tested is passed through a test heat exchanger. A second fluid is circulated through the test heat exchanger with a pump. The second fluid is heated with a heater so that a temperature in the test heat exchanger can be controlled, for example, to so that conditions in the heat exchanger are close to the conditions in the heat exchanger. After a period of time, the test heat exchanger can be removed and inspected, tested, or both. Also, multiple test heat exchangers may be used to test various process conditions. Additionally, the test heat exchangers may include different materials to test various materials.

An optical fiber temperature distribution measurement system includes a temperature difference calculator configured to calculate a temperature difference between corresponding spatial resolution zones based on a first temperature distribution obtained by a return light from a first optical fiber part and a second temperature distribution obtained by a return light from a second optical fiber part, and an abnormality detector configured to calculate a temperature difference for evaluation for each spatial resolution zone, the temperature difference for evaluation being a sum of a temperature difference of each spatial resolution zone and a temperature difference of a spatial resolution zone adjacent thereto, and to determine that an abnormality has occurred in a roller near the spatial resolution zone when the calculated temperature difference for evaluation exceeds a reference value.

The present disclosure relates to method and device for determining performance of an intermittently used refrigerator. Performance measuring device receives time stamped temperature data from temperature sensor configured in the intermittently used refrigerator. The received time stamped temperature data is used to determine values for each of one or more predefined parameters associated with the intermittently used refrigerator. The performance measuring device determines temperature variation of the intermittently used refrigerator at predefined time intervals. Based on the determined temperature variation, additional service windows in a site comprising the intermittently used refrigerator are identified i.e. the intensity of sales in the site are identified. The determined values of each of the one or more predefined parameters and the determined temperature variation, helps in determining the performance of intermittently used refrigerator. One or more suggestions related to performance of the intermittently used refrigerator and energy consumption are provided to an end user.

The present invention relates to a method of diagnosing the lifetime of a structure and a system for diagnosing the same, the method comprises a step for preparing a structure to be measured; a step for measuring an amount of exothermic or endothermic heat of the structure; a step for measuring an amount of entropy decrease of the structure by using the measured amount of exothermic or endothermic heat; and a step for diagnosing the remaining lifetime of the structure from the measured amount of entropy decrease.

Technologies for producing training data for identifying degradation of physical components include a system. The system includes circuitry configured to apply an accelerated degradation process to a physical component of an industrial plant. Additionally, the circuitry of the system is configured to obtain measurement data indicative of visual characteristics of the physical component at each of multiple phases of degradation, wherein the measurement data is usable to train a neural network to identify a phase of degradation of another physical component.

A climate hall including a foundation to which a flexible wall arrangement is connected. The flexible wall arrangement extends along and is sealingly joined to the foundation. The climate hall further includes a ventilation plant. The ventilation plant is configured to establish an overpressure inside the flexible wall arrangement, thereby causing the flexible wall arrangement to erect to form a hall having an inner volume which is at least partly defined by inner side wall portions and a ceiling portion formed by the flexible wall arrangement. The ventilation plant is further configured to established a controlled climate inside the hall, thereby forming a climate hall. The climate hall further includes an interior ground surface configured for vehicle testing.

A parameter similarity method for test simulation conditions of an aerodynamic heating environment is disclosed. With respect to the requirement that the adiabatic wall enthalpy and the cold-wall heat flux are equal in the simulation test of the aerodynamic heating environment, a method that can ensure the similarity of ground test parameters and flight parameters without the equal adiabatic wall enthalpy is proposed, and solves the problems of relying on the equal adiabatic wall enthalpy and making it difficult to accurately simulate the real aerodynamic heating environment in the current test simulation method, and provides guarantee for heat transfer and ablation test research of thermal protection/insulation material under the high temperature aerodynamic heating environment. The test conditions are not affected by the value of the adiabatic wall enthalpy. According to the method, most test devices can simulate the aerodynamic heating environment with high enthalpy.

A method for measuring load performance of a positive displacement motor (PDM) test coupon. The test coupon comprises a partial length of a PDM stage and is received inside a sealable test chamber. In some embodiments, the test coupon may be cut from a failed PDM stage. The test chamber is filled with test fluid. In some embodiments, the test fluid may be drilling fluid sampled from a live well. Rotation of the rotor on the test coupon actuates rotation of the stator. A braking torque is applied to the stator rotation, enabling evaluation of, for example, fatigue load performance of test coupon. Additional embodiments comprise the rotor axis and the stator axis being offset in order to simulate rotor/stator eccentricity in a full size PDM stage.

A stress properties measurement method for measuring properties of stresses generated in a structure includes acquiring, from a first imaging device, a plurality of thermal images corresponding to temperatures of a surface of the structure, the plurality of thermal images being different in imaging time from each other, generating a stress distribution image corresponding to each of the plurality of thermal images, acquiring a stress value of a first section that is smaller in stress gradient than a predetermined value and respective stress values of a plurality of second sections where stresses are concentrated for the stress distribution images, and deriving correlation properties of stresses at a section of the structure based on the stress value of the first section acquired and the respective stress values of the plurality of second sections acquired.