Abstract: A system for optimizing machine performance includes an optimization system and a data processing system. The data processing system records readings from data sources monitoring the performance of a machine and related aspects. The readings are processed at the optimization system and a machine learning model is trained to differentiate between data corresponding to an interval of optimal runtime performance and data corresponding to an interval of pre-error performance. The trained model is used to identify a subset of the various data sources that are most-predictive for a particular performance state of the machine, such as a pre-error performance state or an optimal runtime performance state. The subset of the various data sources are provided to a multivariate model for generating set-point recommendations for each of the most-predictive data sources.

Abstract: An air delivery device is provided for dewatering a suction roll in a paper machine by applying pressurized air to expel residual water or debris outwardly from through-holes. The air delivery device is positioned at a suitable circumferential position of the suction roll to prevent water carryover back to the suction box location. In one preferred embodiment, an internal blowbox is mounted near the inner surface of the suction roll for blowing out water from the suction roll holes to augment the natural centrifugal forces. The blowbox can be used as a standalone dewatering unit, or in conjunction with an external doctor blade or wipe. In another preferred embodiment, at least one air knife, air pipe or air shower is used for dewatering. In another preferred embodiment, at least one interior stationary air foil is used to generate a pressure pulse which creates outward air flow through the through-holes.

Abstract: Method and apparatus for preventing loss of liquid cryogen due to heat infiltration into the cryogen stored in a dewar. At least one transient heat shield disposed in the vacuum space between the inner and outer vessels of the dewar in heat exchange with normal cryogenic liquid, cold gas, or supercritical fluid withdrawal means of the stored cryogen, intercepts heat transfer into the stored cryogen.

Abstract: Method and apparatus for preventing loss of liquid cryogen due to heat infiltration into the cryogen stored in a dewar. At least one transient heat shield disposed in the vacuum space between the inner and outer vessels of the dewar in heat exchange with normal vapor withdrawal means of the stored cryogen intercepts heat transfer into the stored cryogen.