Abstract:
The present disclosure relates to a method for determining an efficiency curve (64) of a chiller (60) that includes operating a chiller (60) over a range of operating capacities, measuring a temperature of water entering the chiller (60) at an initial capacity, measuring a temperature of water exiting the chiller (60) at the initial capacity, measuring a power consumption of the chiller (60) at the initial capacity, calculating an initial efficiency of the chiller (60) at the initial capacity, measuring a plurality of temperatures of water entering the chiller (60) at a plurality of capacities, measuring a plurality of temperatures of water exiting the chiller (60) at each of the plurality of capacities, measuring a plurality of power consumptions at each of the plurality of capacities, calculating a plurality of efficiencies at each of the plurality of capacities, and generating an efficiency curve (64) for the chiller (60) with the initial efficiency and the plurality of efficiencies.
Abstract:
Embodiments of the present disclosure relate to a heating, ventilating, air conditioning, and refrigeration (HVAC&R) system that includes a variable speed drive (VSD) (52) configured to supply power to a motor (50) configured to drive a compressor (32) of the HVAC&R system, a rectifier (102) of the VSD (52) configured to receive alternating current (AC) power from an AC power source (108) and convert the AC power to direct current (DC) power, a DC bus (106) of the VSD (52) electrically coupled to the rectifier (102), an inverter (104) of the VSD (52) electrically coupled to the DC bus (106), where the inverter (104) is configured to convert the DC power to output AC power, the output AC power has a variable voltage and a variable frequency, and the output AC power is directed to the motor (50), and a battery (100) electrically coupled to the DC bus (106), where the battery is configured to provide auxiliary DC power to the VSD (52).
Abstract:
Embodiments of the present disclosure relate to a refrigeration system that includes a compressor configured to circulate refrigerant along a refrigerant loop, a motor (106-1, 106-2, 106-3) configured to drive the compressor, and a variable speed drive (104') coupled to the motor (106-1, 106-2, 106-3) and configured to supply power to the motor (106-1, 106-2, 106-3). The variable speed drive (104') includes a primary winding (516) of a step down transformer (514) coupled to an alternating current (AC) power source (102), a first secondary winding (518) of the step down transformer (514), where the first secondary winding (518) is configured to supply power at a variable supplied voltage to the motor (106-1, 106-2, 106-3) when the motor (106-1, 106-2, 106-3) operates below a threshold voltage, and a second secondary winding (520) of the step down transformer (514), where the second secondary winding (520) is configured to supply power at a fixed supplied voltage when the motor (106-1, 106-2, 106-3) operates at or above the threshold voltage.
Abstract:
Embodiments of the present disclosure relate to a heating, ventilating, air conditioning, and refrigeration (HVAC&R) system that includes a vapor compression system and an absorption heat pump. The vapor compression system includes a compressor configured to circulate refrigerant through the vapor compression system, an evaporator configured to place the refrigerant in thermal communication with a low temperature heat source, and a condenser configured to place the refrigerant in thermal communication with an intermediate fluid loop. The absorption heat pump includes an absorption evaporator configured to place a working fluid in thermal communication with the intermediate fluid loop, an absorber configured to mix the working fluid in an absorbent to form a mixture, a generator configured to heat the mixture and separate the working fluid from the absorbent, and an absorbent condenser configured to place the working fluid in thermal communication with a heating fluid.
Abstract:
A refrigeration system includes a heat exchanger (204) configured to place a cooling fluid in a heat exchange relationship with a working fluid, a free-cooling circuit having a pump (216) configured to circulate the working fluid through the heat exchanger and a condenser (206), a flow control valve (210) configured to control a flow rate of the working fluid to the condenser, a condenser bypass valve (212) configured to control a flow rate of the working fluid that bypasses the condenser, and a controller (78) configured to adjust a position of the flow control valve, a position of the condenser bypass valve, a speed of a fan (208) of the condenser, a speed of the pump, and a temperature of a heater (218) based on an ambient temperature, a temperature of the working fluid leaving the condenser, the position of the flow control valve, the position of the condenser bypass valve, or a combination thereof.
Abstract:
A compressor and method for controlling the volume ratio of a compressor is provided. The compressor includes a an intake passage, a discharge passage and a compression mechanism, the compression mechanism being positioned to receive vapor from the intake passage and provide compressed vapor to the discharge passage. At least one opening is positioned in the compression mechanism to bypass a portion of the vapor in the compression mechanism to the discharge passage, the at least one opening being sized and positioned to automatically vary a volume ratio in the compressor in response to a varying pressure differential between the intake passage and the discharge passage.
Abstract:
A system includes a top drive system, a swivel joint system coupled to the top drive at a position axially below the top drive system, wherein the swivel joint system comprises a first subunit and a second subunit rotatably coupled together, wherein the first sub unit is coupled to the top drive system, and wherein the swivel joint system is configured to pivot between a first position and a second position, and a tubular gripping system coupled to the second subunit of the swivel joint system.
Abstract:
In accordance with one aspect of the disclosure, a system includes a multiple cement plug launching system (50) having a plug system adapter assembly (56), a first plug assembly (52) comprising a first central passage (118) and a plurality of rupture disks (250), wherein each rupture disk (250) of the plurality of rupture disks (250) occludes a respective one of a plurality of rupture disk ports (252) extending through the first plug assembly (52), and a second plug assembly (54) comprising a second central passage (118), wherein the plug system adapter assembly (56) is coupled to the second plug assembly (54), which is coupled to the first plug assembly (52), such that the plug system adapter assembly (56), the second plug assembly (54), and the first plug assembly (52) are coupled to one another in an axial arrangement.
Abstract:
The present disclosure relates to a sensor disposed in a conduit on a suction side of a compressor, wherein the conduit is configured to convey a fluid and a controller communicatively coupled to the sensor. The controller includes a processor and a memory, the memory is configured to store instructions to be performed by the processor, and the controller is configured to receive one or more indications from the sensor of an amount of power consumed by an active sensor component, determine a presence of liquid in the fluid based at least on the one or more indications, and control a device based on the presence of liquid in the fluid.
Abstract:
A system includes a manual tool data system having a manual tool data monitoring system configured to monitor one or more manual tools, a manual tool data acquisition system configured to acquire data corresponding to one or more operational parameters of the one or more manual tools, a manual tool data analysis system configured to analyze the data acquired by the manual tool data acquisition system, and a manual tool messaging system configured to generate messages based on the data analyzed by the manual tool data analysis system.