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Method of pump testing
Thermodynamic pump testing is a form of pump testing where only the temperature rise, power consumed, and differential pressure need to be measured to
Thermodynamic_pump_testing
Device that imparts energy to the fluids by mechanical action
efficiency. Pump efficiency is an important aspect and pumps should be regularly tested. Thermodynamic pump testing is one method. Most large pumps have a
Pump
Pump used to transport fluids by conversion of rotational kinetic energy
positive suction head (NPSH) Pump Roots blower Seal (mechanical) Specific speed (Ns or Nss) Thermodynamic pump testing Turbine Turbopump Shepard, Dennis
Centrifugal_pump
Mathematical models of heat pumps and refrigeration
Thermodynamic heat pump cycles or refrigeration cycles are the conceptual and mathematical models for heat pump, air conditioning and refrigeration systems
Heat pump and refrigeration cycle
Heat_pump_and_refrigeration_cycle
Pump energy-efficiency metric
p_{t}} ) [kW] Pump Thermodynamic pump testing Specific fan power Efficient energy use CAROLINE MARKUSSON. Efficiency of building related pump and fan operation
Specific_pump_power
Physics of heat, work, and temperature
types of thermodynamic instruments, the meter and the reservoir. A thermodynamic meter is any device which measures any parameter of a thermodynamic system
Thermodynamics
Most common type of heat pump
An air source heat pump (ASHP), the most common type of heat pump, can absorb energy (heat) sourced from cold ambient air outside a building, and release
Air_source_heat_pump
System that transfers heat from one space to another
A heat pump is a device that uses mechanical or thermal energy to transfer heat from one space to another. The mechanical heat pump uses electric power
Heat_pump
State of thermodynamic systems where no net flow of matter or energy occurs
Thermodynamic equilibrium is a notion of thermodynamics with axiomatic status[clarification needed] referring to an internal state of a single thermodynamic
Thermodynamic_equilibrium
Device for measuring thermodynamic properties
A thermodynamic instrument is any device for the measurement of thermodynamic systems. In order for a thermodynamic parameter or physical quantity to
Thermodynamic_instruments
Applies an electric current to heat or cool materials
them. A Peltier cooler, heater, or thermoelectric heat pump is a solid-state active heat pump which transfers heat from one side of the device to the
Thermoelectric_heat_pump
Physical quantity of hot and cold
kelvin, 0 K = −273.15 °C, or -459.67 °F, is the lowest point in the thermodynamic temperature scale. Experimentally, it can be approached very closely
Temperature
Ratio of useful heating or cooling provided to work required
a term commonly used with heat pumps, it is also applicable to any energy system that behaves in a thermodynamically open manner, receiving energy from
Coefficient_of_performance
Thermodynamic process Thermodynamic pump testing Thermodynamic square Thermodynamic state Thermodynamic system Thermodynamic temperature Thermodynamic variable Thermodynamicist
Index_of_physics_articles_(T)
Physical law for entropy and heat
thermodynamics establishes the concept of entropy as a physical property of a thermodynamic system. It predicts whether processes are forbidden despite obeying
Second_law_of_thermodynamics
Refrigeration process
cycle heat pump which directly uses the ideal gas law and isothermal expansion and compression to move heat, but the COP 100% thermodynamic efficiency
Vapor-compression refrigeration
Vapor-compression_refrigeration
Law of thermodynamics establishing the conservation of energy
conservation of energy in the context of thermodynamic processes. For a thermodynamic process affecting a thermodynamic system without transfer of matter, the
First_law_of_thermodynamics
Heat transfer due to the movement of fluid
this definition of convection is only applicable in Heat transfer and thermodynamic contexts. It should not be confused with the dynamic fluid phenomenon
Convection_(heat_transfer)
Type of heat pump
heat pump (ACHP), also sometimes called compression–absorption heat pump, is a device that integrates an electric compressor in an absorption heat pump. In
Absorption–compression heat pump
Absorption–compression_heat_pump
Cooling output divided by electricity input, as a standard for HVAC systems
Heat Pump Equipment. This defines SEER as the ratio of cooling in British thermal units (BTUs) to the energy consumed in watt-hours. The device testing protocol
Seasonal energy efficiency ratio
Seasonal_energy_efficiency_ratio
Measure of energy in a thermodynamic system
Enthalpy (/ˈɛnθəlpi/ ) is the sum of a thermodynamic system's internal energy and the product of its pressure and volume. It is a state function in thermodynamics
Enthalpy
Closed-cycle regenerative heat engine
permanent gaseous working fluid. Closed-cycle, in this context, means a thermodynamic system in which the working fluid is permanently contained within the
Stirling_engine
Thermodynamic process that uses energy sources to heat water
commonly heated with natural gas, electric resistance, or a heat pump. Electric heat pump water heaters are significantly more efficient than electric resistance
Water_heating
to Vuilleumier cycle. Dogkas, George (2020-07-23). "Thermodynamic Analysis of Vuilleumier Heat Pumps". doi:10.26240/heal.ntua.18638. {{cite journal}}: Cite
Vuilleumier_cycle
Machine that removes heat from a liquid coolant
partial vacuum internally. Negative pressure chillers exhibit higher thermodynamic efficiency, are heavier as they are larger for the same cooling capacity
Chiller
Bladeless centripetal flow turbine
additionally referred to the Tesla turbine as a multiple-disk centrifugal pump. One of Tesla's intended implementations for this turbine was for the generation
Tesla_turbine
Pump that uses solar energy
or diesel-run water pumps. Generally, solar-powered pumps consist of a solar panel array, solar charge controller, DC water pump, fuse box/breakers, electrical
Solar-powered_pump
Sub-class of turbomachinery
cost effective (thus useful in design), testing, while costly, is still the most precise method. Further, testing centrifugal compressor performance is
Centrifugal_compressor
Study of gas-vapor mixtures
hygrometry) is the field of engineering concerned with the physical and thermodynamic properties of gas-vapor mixtures. With the inventions of the hygrometer
Psychrometrics
Influence of thermodynamics on evolution
Research concerning the relationship between the thermodynamic quantity entropy and both the origin and evolution of life began around the turn of the
Entropy_and_life
Refrigerator that uses a heat source
condensation occurs (see below). In comparison, a compressor based heat pump works by pumping refrigerant gas from an evaporator to a condenser. This reduces
Absorption_refrigerator
Heat exchanged by a body or thermodynamic system
Sensible heat is heat exchanged by a body or thermodynamic system in which the exchange of heat changes the temperature of the body or system, and some
Sensible_heat
Absorption refrigerator invented in 1930
electromagnetic pump to compress a working gas, pentane. Although the refrigerator was not a commercial success, the Einstein–Szilard pump was later used
Einstein_refrigerator
Thermodynamic phase transition energy
heat of transformation) is energy released or absorbed, by a body or a thermodynamic system, during a constant-temperature process—usually a first-order
Latent_heat
Pressure exerted by molecules of water vapor in gaseous form
saturation vapor pressure is the pressure at which water vapor is in thermodynamic equilibrium with its condensed state. At pressures higher than saturation
Vapour_pressure_of_water
Technology of indoor and vehicular environmental comfort
in a heat pump system in which a compressor is used to drive thermodynamic refrigeration cycle, or in a free cooling system that uses pumps to circulate
Heating, ventilation, and air conditioning
Heating,_ventilation,_and_air_conditioning
A Scuderi cycle is a thermodynamic cycle that is constructed out of the following series of thermodynamic processes: A-B and C-D (TOP and BOTTOM of the
Scuderi_cycle
Branch of thermodynamics
of thermodynamics that deals with physical systems that are not in thermodynamic equilibrium but can be described in terms of macroscopic quantities
Non-equilibrium thermodynamics
Non-equilibrium_thermodynamics
Supersonic atmospheric jet engine
Preparations for flight testing ended with the Japanese surrender in August 1945. In 1936, Hellmuth Walter constructed a test engine powered by natural
Ramjet
Cellular molecule transport mechanism against the concentration gradient
secretion, and impulse transmission. For example, the sodium–potassium pump uses ATP to pump sodium ions out of the cell and potassium ions into the cell, maintaining
Active_transport
Thermodynamic device that uses energy to raise the temperature of water
or fuel oil. Less conventional water heating technologies, such as heat pump water heaters and solar water heaters, can also be categorized as storage
Storage_water_heater
Ocean/atmosphere carbon exchange process
mixed layer considering the solubility pump. The Revelle Factor is an expression to characterize the thermodynamic efficiency of the DIC pool to absorb
Oceanic_carbon_cycle
Manually powered surface air supply for divers
A diver's pump is a manually operated low pressure air compressor used to provide divers in standard diving dress with air while they are underwater. Rotary
Diver's_pump
Simulation process modeling environment
software was enabled by the advent of the CAPE-OPEN standard. COCO thermodynamic library "TEA" and its chemical compound data bank are based on ChemSep
COCO_simulator
Engine that uses steam to perform mechanical work
working fluid is separated from the combustion products. The ideal thermodynamic cycle used to analyze this process is called the Rankine cycle. In general
Steam_engine
Device that cools air through the evaporation of water
104158. ISSN 2352-7102 – via Science Direct. see Independent Testing tab, Thermodynamic performance assessment of a novel air cooling cycle and other
Evaporative_cooler
Cooling system that uses solar power
(absorption cycle and heat engine / Rankine cycle) and solar related (heat pump) along with an extensive bibliography of related literature. Photovoltaics
Solar_air_conditioning
Pressure surge when a fluid is forced to stop or change direction suddenly
reversing direction on loss of motive power, such as a sump pump or a basement sewage ejector pump stopping. "Non-slam" check valves can be used to reduce
Hydraulic_shock
Engine in which fuel combusts with an oxidizer
certain points, and testing of individual parts or sub-assemblies to determine friction and pumping losses. For example, in a dynamometer test by Hot Rod magazine
Internal_combustion_engine
Thermodynamic cycle
begins to compress the remaining air in the cylinder. A small piston fuel pump injects liquid during compression. The ignition source was likely a hot tube
Atkinson_cycle
Thermodynamic process
Transpiration cooling is a thermodynamic process where cooling is achieved by a process of moving a liquid or a gas through the wall of a structure to
Transpiration_cooling
Vehicle that uses a motor powered by stored compressed air
electric plant with regenerative braking. Compressed-air cars use a thermodynamic process. Air cools when expanding and heats when compressed. Thermal
Compressed-air_car
Thermodynamic cycle
The Brayton cycle, also known as the Joule cycle, is a thermodynamic cycle that describes the operation of certain heat engines that have air or some
Brayton_cycle
Low-pressure voids formed in liquids
is similar to boiling. The major difference between the two is the thermodynamic paths that precede the formation of the vapor. Boiling occurs when the
Cavitation
Machine to increase pressure of a fluid
A booster pump is a machine which increases the pressure of a fluid. It may be used with liquids or gases, and the construction details vary depending
Booster_pump
Thermal engineering discipline concerning transfer of heat in physical systems
difference. The thermodynamic free energy is the amount of work that a thermodynamic system can perform. Enthalpy is a thermodynamic potential, designated
Heat_transfer
Equipment used to transfer heat between fluids
need to be validated before use in application using the following tests: thermodynamic performance (SAE J3094, etc.) burst at selected multiple of max pressure
Heat_exchanger
Machine that converts one or more forms of energy into mechanical energy (of motion)
mixing. Mechanical heat engines convert heat into work via various thermodynamic processes. The internal combustion engine is perhaps the most common
Engine
Change in temperature due to a magnetic field
describing materials exhibiting magnetocaloric effects. The MCE is a magneto-thermodynamic phenomenon in which a temperature change of a suitable material is caused
Magnetocaloric_effect
Power plant component
irreversibilities involved in steam generation and therefore improves the thermodynamic efficiency of the system. This reduces plant operating costs and also
Feedwater_heater
Closed vessel in which fluid is heated
heaters Gas system Coal system Pressure gauges Feed pumps Fusible plug Insulation and lagging Inspectors test pressure gauge attachment Name plate Registration
Boiler
Type of internal combustion engine
equivalent to a thermodynamic efficiency of 55.4%, which is an exceedingly high figure for a small internal combustion engine. In a test witnessed by a
Bourke_engine
Assembly of heat engines that work in tandem from the same source of heat
called a combined gas and steam (COGAS) plant. Combining two or more thermodynamic cycles improves overall efficiency, which reduces fuel costs. The principle
Combined-cycle_power_plant
Copper helmet with rubberised canvas diving suit and weighted boots
Description of the apparatus, its care and maintenance, with rules for testing the pump; The physics and physiology of diving; Dressing the diver and sending
Standard_diving_dress
Machine to increase pressure of gas by reducing its volume
2023. Mae. "Non-Flow Thermodynamic Processes" (PDF). courses.sens. buffalo.edu. Retrieved 2 February 2023. "PTC-10 Performance Test Code on Compressors
Compressor
Ratio of energy extracted from sunlight in solar cells
Several factors affect conversion efficiency, including its reflectance, thermodynamic efficiency, charge carrier separation efficiency, charge carrier collection
Solar-cell_efficiency
Aspects of fluid mechanics involving fluid flow
energy conservation equations, a thermodynamic equation of state that gives the pressure as a function of other thermodynamic variables is required to completely
Fluid_dynamics
moisture. It is usually thought of as air temperature, and it is the true thermodynamic temperature. It is a measurement of heat intensity independently of
Glossary_of_HVAC_terms
Heat engine that performs mechanical work using steam as its working fluid
Papin's working model of the steam digester in 1679 and Thomas Savery's steam pump in 1698. In 1712, Thomas Newcomen's atmospheric engine became the first commercially
History_of_the_steam_engine
Anglo-Irish scientist (1627–1691)
Air Pump – 1768 painting by Joseph Wright of Derby, a painting of a demonstration of one of Boyle's experiments Boyle temperature – Thermodynamic property
Robert_Boyle
Rocket engine power cycle
engine's combustion chamber and routes it through turbopump turbines to pump fuel before being exhausted (similar to the gas-generator cycle). Since fuel
Combustion_tap-off_cycle
Rocket engine operation method
Retrieved 5 April 2021. Rocket power cycles Nasa's full flow stages combustion cycle demonstrator Design Tool for Liquid Rocket Engine Thermodynamic Analysis
Staged_combustion_cycle
Depth in the oceans below which no calcium carbonate sediment particles are preserved
the release of CO2 from the decay of organic matter (see also biological pump in the carbon cycle of oceans), and CaCO3 will dissolve. The sinking velocity
Carbonate_compensation_depth
gas, since its thermodynamic behavior considerably differs from that of an ideal gas, which by contrast appears for dilute thermodynamic conditions. The
Non ideal compressible fluid dynamics
Non_ideal_compressible_fluid_dynamics
Air cooling method
conditioning systems do not transfer heat directly into the exterior air. The thermodynamic efficiency of the overall system can be improved by utilizing evaporative
Deep_water_source_cooling
Practical uses for Stirling engine technology
energy input to drive heat transfer in a reversed direction (i.e. a heat pump, or refrigerator). There are several design configurations for Stirling engines
Applications of the Stirling engine
Applications_of_the_Stirling_engine
Concept in general relativity and quantum field theory
corresponding to a certain temperature (Hawking temperature). Using the thermodynamic relationship between energy, temperature and entropy, Hawking was able
Black_hole_thermodynamics
Distance traveled by a vehicle compared to volume of fuel consumed
vehicle consumes per unit of distance (level road) depends upon: The thermodynamic efficiency of the heat engine; Frictional losses within the drivetrain;
Fuel_economy_in_automobiles
Nameplate capacity of a photovoltaic devices
cabling and converters. Nominal power is also called peak power because the test conditions at which it is determined are similar to the maximum irradiation
Nominal_power_(photovoltaic)
Company
Conference on Ammonia and CO2 Refrigeration Technologies; or conferences on Thermodynamic Properties and Transfer Processes of Refrigerants, on Magnetic Refrigeration
International Institute of Refrigeration
International_Institute_of_Refrigeration
American engineer and astronaut (born 1960)
he participated in several scientific investigations. On July 31, 2010, a pump module on the exterior of the Space Station failed. Wheelock and Tracy Caldwell-Dyson
Douglas_H._Wheelock
Product sold in the automotive aftermarket
alternators or air conditioning compressors (rather than the power steering pump, for example) can be detrimental to vehicle usability (e.g., by not keeping
Fuel_saving_device
1873 device that rotates when exposed to light
movement, and the faster the vanes should spin. In 1901, with a better vacuum pump, Pyotr Lebedev showed that, in fact, the radiometer only works when there
Crookes_radiometer
Aviation fuel
pilot plant to produce enough fuel for larger-scale testing and submitted fuel to the FAA for testing. In 2008, an article by technology writer and aviation
Avgas
Component of air conditioning and refrigeration systems
expansion device has a sensing bulb that is filled with a liquid whose thermodynamic properties are similar to those of the refrigerant. This bulb is thermally
Thermal_expansion_valve
Powered mechanical device
A machine is a thermodynamic system that uses power to apply forces and control movement to perform an action. The term is commonly applied to artificial
Machine
Early diving decompression model
The thermodynamic model was one of the first decompression models in which decompression is controlled by the volume of gas bubbles coming out of solution
Thermodynamic model of decompression
Thermodynamic_model_of_decompression
Device that emits light via optical amplification
energy level. The photon is consumed in this process. In a system in thermodynamic equilibrium, absorption events are balanced by spontaneous emission
Laser
Rocket engine operation method
fuel then powers the turbine that drives the engine's fuel and oxidizer pumps before being injected into the combustion chamber and burned. Because of
Expander_cycle
Maximum energy available for use
dis-equilibrium between them. Exergy is neither a thermodynamic property of matter nor a thermodynamic potential of a system. Exergy and energy always have
Exergy
Charge transfer due to contact or sliding
Simon, Frank (2003). "Polymer tribo-electric charging: dependence on thermodynamic surface properties and relative humidity". Journal of Electrostatics
Triboelectric_effect
Rocket engine used on the Saturn V rocket
doesn’t melt." Through Brevik's calculations of the hydrodynamic and thermodynamic characteristics of the F-1, he and his team were able to fix an issue
Rocketdyne_F-1
Process of moving heat from one location to another in controlled conditions
electromechanical machine driving the heat exchanger), but it can also be driven by heat pump, magnetism, electricity, laser cooling, or other means. Refrigeration has
Refrigeration
Nuclear reactor where water boils in core
The water then goes through either jet pumps or internal recirculation pumps that provide additional pumping power (hydraulic head). The water now makes
Boiling_water_reactor
Device that removes contaminants from the air in a room
was to be used to supply air, the original concept being that it would be pumped using a double bellows. A short pipe allowed breathed air to escape. The
Air_purifier
Scuba set with variable-density buoyancy control
increase buoyancy after return to the surface. The pump is a high pressure positive displacement pump with a low delivery volume, capable of producing enough
Avelo_diving_system
Equipment used to facilitate underwater diving
inspection and testing of seamless aluminium alloy gas cylinders BS EN 1968:2002 Transportable gas cylinders. Periodic inspection and testing of seamless
Diving_equipment
Electrochemical principle that enables cellular respiration
instance, in chloroplasts during photosynthesis, an electron transport chain pumps H+ ions (protons) in the stroma (fluid) through the thylakoid membrane into
Chemiosmosis
1960s British/French turbojet aircraft engine
43%, which at the time was the highest figure recorded for any normal thermodynamic machine. The initial design of the engine was a civil version of the
Rolls-Royce/Snecma Olympus 593
Rolls-Royce/Snecma_Olympus_593
Solar-powered experimental aircraft
Albatross and used that ultralight design to demonstrate solar flight at testing ground at Minter Field, outside of Shafter, California. The Gossamer Penguin
MacCready_Gossamer_Penguin
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