cn1290328a - compressor system and method and

Downloadable! Unstable flow structures cause inevitable energy losses in all power energy systems including turbomachines In this study a set of analyses was conducted with the use of spectral maps on the pressure signals obtained from an industrial centrifugal compressor The spectral maps provide one a detailed visualization of the flow conditions present in the machine along the OIL CONTROL SYSTEM AND METHOD FOR HVAC SYSTEM A HVAC system that includes a compressor comprising a suction port and a discharge port Also included is a refrigerant circulating throughout the HVAC system and through the compressor Further included is a pressure equalization valve WO/2019/240670A1

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Venting system for a toner cartridge for use with an image forming device Air purifier and an operating method for the same System and method for low NOx emitting regeneration of desiccants Silicone hydrogel contact lenses Systems devices and methods for providing airflow to an air compressor Sets of ink cartridges Shopping cart attachment

May 01 2016The schematic diagram of experimental unit is shown in Fig 1 It is composed of a wall room air-conditioning system and a psychometric chamber The air-conditioning system fundamentally consisted of a rotary compressor a condenser an evaporator a manual expansion valve and such attachments as an accumulator and fans

Oct 30 2014FIG 15 is a graph of an operational curve associated with a compressor utilized in the battery system of FIG 1 FIGS 16-26 are flowcharts of a method for cooling the battery system of FIG 1 in accordance with another exemplary embodiment and FIG 27 is a graph of operational curves associated with the flowcharts of FIGS 16-26

With this compressor design method the cooling capacity can be regulated just by changing the compressor speed Only when the part-load is below 25% the guide glade is used to adjust the cooling capacity This compressor design method reduces the throttling loss caused by the guide glade and improves the adiabatic efficiency of the compressor

A method of regulating the refrigerant temperature for a beverage machine including a refrigeration system for producing a frozen beverage operating at least one compressor at a speed to flow the refrigerant through the refrigeration system of the beverage machine and cooling the refrigerant with at least one condenser

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Models that characterize life cycle greenhouse gases from electricity generation are limited in their capability to estimate emissions changes at scales that capture the grid-scale benefits of technologies and policies that enhance renewable systems integration National assumptions about generation mixes are often applied at annual time steps neglecting spatiotemporal resolutions that

An internal view ofa screw compressor is shown in Figure 1 Figure 1: Compressor Internal View DISCHA RGE PLATE SPINDLE Compressor-ExplodedView ROTOR/CASING t fEMAl E ROTOR HYDRAULIC UNLOADER CYLINDER ~j UNl OADER PISTON Although this method ofcontrol is infinitely adjustable and provides reasonable suction pressure control there can

A method of regulating the refrigerant temperature for a beverage machine including a refrigeration system for producing a frozen beverage operating at least one compressor at a speed to flow the refrigerant through the refrigeration system of the beverage machine and cooling the refrigerant with at least one condenser

For example air brake systems on trucks involve the use of compressed air to operate thus requiring an air compressor onboard to recharge the braking system Service vehicles may require onboard air compressors to perform needed functions or to permit the compressor to be mobile and able to be deployed as needed to various job sites or locations

Gas turbine operation control is normally based on thermocouple-measured exhaust temperatures Due to radiation shielding and bulky package it is difficult to provide high spatial resolution for measuring can-to-can combustion temperature profile at the exhaust duct This paper has demonstrated that wavelength-division-multiplexing-based fiber Bragg grating sensors could provide high spatial

Jayanth Nagaraj Air-conditioning servicing system and method U S Patent 6 324 854 issued December 4 2001 Excerpts from this patent description: An air conditioning servicing system utilizes a number of sensors which monitor various operating parameters of a malfunctioning air-conditioning system

_____ valve opens and discharges excess air into the atmosphere if the compressor controls fail to shut down the compressor when the maximum working pressure of the system is reached Relief In some applications a regulator has to be mounted in an out-of-the-way place to function properly or to offer good control of the air

May 08 2019Pneumatic system has been widely used throughout industry and it consumes more than billions kW h of electricity one year all over the world So as to improve the efficiency of pneumatic system its power evaluation as well as measurement methods should be proposed and their applicability should be validated In this paper firstly power evaluation and measurement methods of

AUXILIARY POWER UNIT POWER COMPRESSOR HEALTH STATE

A system and method for diagnosing load compressor health state for an auxiliary power unit that includes a power compressor a combustor a power turbine and a load compressor is provided The auxiliary power unit is operated and bleed air is discharged from the load compressor at a bleed air pressure Using a pressure sensor the bleed air pressure discharged from the load compressor is

May 15 2018These systems rely on the process of absorption and heat instead of an electrically powered mechanical compressor to move the refrigerant from the low-pressure side to the high-pressure side Unlike mechanical-compression refrigeration systems which typically use R-22 and R-410A for refrigerants absorption refrigeration systems use

Leakage can be estimated in systems with other control strategies if there is a pressure gauge downstream of the receiver This method requires an estimate of total system volume including any downstream secondary air receivers air mains and piping (V in cubic feet) The system is started and brought to the normal operating pressure (P1)

May 08 2019Pneumatic system has been widely used throughout industry and it consumes more than billions kW h of electricity one year all over the world So as to improve the efficiency of pneumatic system its power evaluation as well as measurement methods should be proposed and their applicability should be validated In this paper firstly power evaluation and measurement methods of

Hybrid tandem compressor system and method of use US10465937 A compressor system includes a variable-speed compressor and a fixed-speed compressor A control unit is operatively coupled to the variable-speed compressor and is operatively coupled to the fixed-speed compressor A sensor is operatively coupled to the control unit and disposed in an enclosed space

A system and method including a compressor operable in a refrigeration circuit and including a motor a current sensor detecting current drawn by the motor and providing a high-side condition signal a discharge line temperature sensor detecting a discharge line temperature of the compressor and providing a low-side condition signal and processing circuitry processing the high-side condition

OIL CONTROL SYSTEM AND METHOD FOR HVAC SYSTEM A HVAC system that includes a compressor comprising a suction port and a discharge port Also included is a refrigerant circulating throughout the HVAC system and through the compressor Further included is a pressure equalization valve WO/2019/240670A1