Abstract: A method of using an electric submersible pump startup using model-predictive control includes defining an objective of the control algorithm comprising an intake pressure to achieve by an end of the startup schedule. The method also includes translating the objective into a cost function that mathematically describes the objective to develop a model-based offline startup schedule based on startup operational parameters, constraints, and a physical model and entering the startup operational parameters, the constraints for the startup operational parameters, and the physical model into a processor. The method also includes simulating system responses with the processor. The method also includes determining one or more optimal control actions by optimizing the cost function. The method also includes controlling the electric submersible pump based on the optimal control actions determined.

Abstract: Load-bearing apparatus/systems for location in the vicinity of energized power lines are provided. The apparatus includes a base member. The base member has an upper layer and a backing surface layer. An uppermost surface of the upper layer is adapted to support on it at least power line workers and/or related stringing equipment. At least the uppermost surface of the upper layer is adapted to be electrically conductive. Methods for forming the apparatus are also provided.

Abstract: A heat-retention material for a garment is provided having a solar-transmitting shell fabric, a solar-transmitting insulation layer, and a solar-absorbing lining fabric. The solar-absorbing lining fabric includes a plurality of heat-retention elements coupled to a lining fabric, such as having a weighted average thermal emittance of less than 0.8 (or 80%). The heat-retention elements include a low thermal emittance layer and a high solar absorptance layer.

Abstract: Systems and methods facilitate pumping of various fluids such as well fluids. An electric submersible pumping system is constructed with an outer housing that contains an integrated pump and motor. The pump may include an impeller disposed within a stator of the motor. The integration of the pump and the motor enables elimination of various components of traditional electric submersible pumping systems to thus provide a simpler and more compact system for pumping fluids.

Abstract: A method for evaluating operation of an electric submersible pumping (ESP) system is shown. The method includes receiving first sensor data from sensors monitoring operation of the ESP system. The method further includes using a physical model of the electric submersible pumping system to determine second sensor data. The method further includes processing the first sensor data and the second sensor data to determine an first system state as a function of operating time. The method further includes generating a degradation model and applying the degradation model to the first sensor data and the second sensor data to generate a time prediction. The method further includes adjusting operation of the electric submersible pumping system in response to the predictor of the time to failure of the components.

Abstract: An electric submersible pump stage optimized for viscous fluid is provided. The stage can include a diffuser having a curved break water area. The stage can include an impeller having a cut back shroud and/or hub.

Abstract: A method for controlling an ESP-lifted well in an optimal fashion using the ESP speed and choke opening as actuators subject to operational constraints.

Abstract: Systems and methods for power recovery in carbon capture and storage applications are provided. Such systems and methods include ESP systems including permanent magnet motors (PMM) or induction motors (IM). Systems and methods for power generation including permanent magnet motor electric submersible pumps are also provided.

Abstract: A device to provide lighting and ventilation for horticultural applications. The invention relates to a device that combines lighting and ventilation into a single device that enables more efficient lighting and ventilation, and thereby greater control of the microclimate for high density indoor horticulture and controlled environment agriculture.

Abstract: Systems and methods facilitate pumping of various fluids such as well fluids. An electric submersible pumping system is constructed with an outer housing that contains an integrated pump and motor. The pump may include an impeller disposed within a stator of the motor. The integration of the pump and the motor enables elimination of various components of traditional electric submersible pumping systems to thus provide a simpler and more compact system for pumping fluids.

Abstract: An orthopedic therapy apparatus is disclosed. The apparatus may include a deformable textile body having an adhesion surface and a non-adhesion surface opposite to the adhesion surface. The apparatus may further include a first adhesion pad surface and a second adhesion pad surface disposed on the adhesion surface. The apparatus may additionally include a tension member disposed between the first adhesion pad surface and the second adhesion pad surface. The tension member may be formed by folding a first adhesion surface side portion and a second adhesion surface side portion along a deformable textile body longitudinal axis to contact and adhere to a deformable textile body middle portion. The first adhesion surface side portion and the second adhesion surface side portion may be folded by using a plurality of separating cuts disposed on the deformable textile body.

Abstract: Electric submersible pump and other centrifugal pump stages having non-axisymmetric components and passage contours are disclosed. Such a component can be a shrouded impeller having a non-axisymmetric profile for its hub and/or shroud.

Abstract: An electric submersible pump includes a plurality of centrifugal pump stages, each stage including a rotating impeller and a stationary diffuser mounted on a shaft coupled to a motor. An upthrust washer can be disposed axially between an impeller and its associated diffuser at or near a tip of the impeller, and the gap between the impeller tip and diffuser can define the end play or axial clearance for the pump. If the upthrust washer wears away, upthrust rubbing occurs at the impeller tip instead of proximate the pump shaft to advantageously help protect the shaft from damage or failure related to heat. In some ESPs, an upthrust bearing assembly can be located at the pump head. A downthrust washer can be disposed in an upstream facing groove of the impeller. The downthrust washer can have a thickness greater than 0.10 in.

Abstract: A chemical recycling process and facility for turning one or more waste plastics into syngas are provided. Generally, the chemical recycling process involves: (a) liquefying at least one solid waste plastic to form a liquefied waste plastic; (b) introducing at least a portion of the liquefied waste plastic into a partial oxidation (POX) gasifier; and (c) converting at least a portion of the liquefied waste plastic in the POX gasifier into a syngas composition.

Abstract: A chemical recycling process and facility for turning one or more waste plastics into syngas are provided. Generally, the chemical recycling process involves: (a) liquefying at least one solid waste plastic to form a liquefied waste plastic; (b) introducing at least a portion of the liquefied waste plastic into a partial oxidation (POX) gasifier; and (c) converting at least a portion of the liquefied waste plastic in the POX gasifier into a syngas composition.

Abstract: A process and system for liquefying and dehalogenating a waste plastic are provided. Generally, the process comprises: (a) liquefying solid waste plastic to produce a liquefied waste plastic; (b) heating at least a portion of the molten waste plastic in a heat exchanger to thereby provide a heated liquefied waste plastic; (c) sparging a stripping gas into the heated liquefied waste plastic to produce a multi-phase mixture; and (d) disengaging a gaseous phase from a liquid phase of the multi-phase mixture to thereby provide a halogen-enriched gaseous material and a halogen-depleted liquefied waste plastic.

Abstract: A mixed-flow impeller for an electric submersible pump can include a lower end and an upper end; a hub that includes a through bore that defines an axis; blades that extend at least in part radially outward from the hub where each of the blades includes a leading edge and a trailing edge; an upper balance ring that includes a radially inward facing balance chamber surface and a radially outward facing diffuser clearance surface; and an upper guard ring disposed radially outwardly from the upper balance ring where the upper guard ring includes an axially facing diffuser clearance surface that is disposed axially between the trailing edges of the blades and the upper end.

Abstract: Chemical recycling facilities for processing mixed waste plastic are provided herein. Such facilities have the capability of processing mixed plastic waste streams and utilize a variety of recycling facilities, such as, for example, solvolysis facility, a pyrolysis facility, a cracker facility, a partial oxidation gasification facility, an energy recovery facility, and a solidification facility. Streams from one or more of these individual facilities may be used as feed to one or more of the other facilities, thereby maximizing recovery of valuable chemical components and minimizing unusable waste streams.

Abstract: A device to provide lighting and ventilation for horticultural applications. The invention relates to a device that combines lighting and ventilation into a single device that enables more efficient lighting and ventilation, and thereby greater control of the microclimate for high density indoor horticulture and controlled environment agriculture.

Abstract: A polyethylene composition having a recycle content value is obtained by reacting a recycle content feedstock to make a recycle content polyethylene or by deducting from a recycle inventory a recycle content value applied to a polyethylene composition. At least a portion of the recycle content value in the feedstock or in an allotment obtained by a polyethylene manufacturer has its origin in recycled waste plastics.