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The Energy Efficient Engine was a program funded by NASA in the 1970s to develop technologies suitable for energy efficient turbofans. Its goal was to
Energy_Efficient_Engine
Methods for higher energy efficiency
Efficient energy use, or energy efficiency, is the process of reducing the amount of energy required to provide products and services. There are many
Efficient_energy_use
Driving using techniques that reduce fuel consumption
Energy-efficient driving techniques are used by drivers who wish to reduce their fuel consumption, and thus maximize fuel efficiency. Many drivers have
Energy-efficient_driving
Power-saving option for Ethernet network devices
In computer networking, Energy-Efficient Ethernet (EEE) is a set of enhancements to twisted-pair, twinaxial, backplane, and optical fiber Ethernet physical-layer
Energy-Efficient_Ethernet
Machine that converts one or more forms of energy into mechanical energy (of motion)
An engine or motor is a machine designed to convert one or more forms of energy into mechanical energy. Available energy sources include potential energy
Engine
Aircraft engine that produces thrust by emitting a jet of gas
Concorde's engines were more efficient in terms of energy per distance traveled.[citation needed] The thrust-to-weight ratio of jet engines with similar
Jet_engine
Engine in which fuel combusts with an oxidizer
the design to be more efficient.[citation needed] Energy portal Adiabatic flame temperature Aluminum internal combustion engine Air-fuel ratio Bore Centrifugal
Internal_combustion_engine
Engine family by Ford Motor Company
different engines quickly and efficiently in the same factory. Such an approach allowed for significantly faster changeovers when switching from one engine platform
Ford_Modular_engine
Commercial shipyard in Philadelphia
protection, the latest navigation and communications equipment, and an energy-efficient engine. On September 30, 2015, Aker Philadelphia Shipyard delivered the
Hanwha_Philly_Shipyard
Work done divided by heat provided
Engine efficiency of thermal engines is the relationship between the total energy contained in the fuel, and the amount of energy used to perform useful
Engine_efficiency
Engine that uses steam to perform mechanical work
steam engine's energy efficiency was its "duty". The concept of duty was first introduced by Watt in order to illustrate how much more efficient his engines
Steam_engine
Discussing what form of transport is the most fuel efficient and economical
International System of Units including joules for energy and metres for distance. The more efficient the vehicle, the more metres it covers with one joule
Energy efficiency in transport
Energy_efficiency_in_transport
Theoretical engine
fundamental thermodynamic concept of entropy. The Carnot engine is the most efficient heat engine which is theoretically possible. The efficiency depends
Carnot_heat_engine
Closed-cycle regenerative heat engine
net conversion of heat energy to mechanical work. More specifically, the Stirling engine is a closed-cycle regenerative heat engine, with a permanent gaseous
Stirling_engine
System that converts heat or thermal energy to mechanical work
engine is a system that transfers thermal energy to do mechanical or electrical work. While originally conceived in the context of mechanical energy,
Heat_engine
Vehicle using two or more power sources
make to their target in any year. Energy portal Ecology portal Alternative propulsion Bivalent (engine) Efficient energy use Electric vehicle Global Hybrid
Hybrid_vehicle
Non-airbreathing engine used to propel a missile or vehicle
surface area over the course of the burn. Rocket engine nozzles are surprisingly efficient heat engines for generating a high speed jet, as a consequence
Rocket_engine
Internal combustion engine type
30% efficient; in other words, 30% of the energy generated by combustion is converted into useful rotational energy at the output shaft of the engine, while
Four-stroke_engine
Measurement indicator of fuel conversion
aircraft at high speeds). Like a lot of heat engines, jet engines tend to not be particularly efficient (<50%); a lot of the fuel is "wasted".[citation
Jet_engine_performance
Process of changing energy
Energy transformation, also known as energy conversion, is the process of changing energy from one form to another. In physics, energy is a quantity that
Energy_transformation
Pioneering machine of the Industrial Revolution
Britannica, it was "the first truly efficient steam engine". The Watt steam engine was inspired by the Newcomen atmospheric engine, which was introduced by Thomas
Watt_steam_engine
Performance measure of a device that uses thermal energy
thermal energy, such as an internal combustion engine, steam turbine, steam engine, boiler, furnace, refrigerator, ACs etc. For a heat engine, thermal
Thermal_efficiency
Form of thermal efficiency
piston engine Carbon dioxide equivalent Corporate Average Fuel Economy (CAFE) EcoAuto (in Canada) Efficient energy use Emission standard Energy content
Fuel_efficiency
British engineering company
marine and energy efficient engine applications. Both engineers were working at Cosworth on the Cosworth DFX turbocharged methanol engine for the CART
Ilmor
Systems vehicles with multiple power sources use to transmit power to the wheels
example, a hybrid may receive its energy by burning gasoline, but switch between an electric motor and a combustion engine. A typical powertrain includes
Hybrid_vehicle_drivetrain
Maximum attainable efficiency of any heat engine
equally efficient, regardless of the working substance employed or the operation details. Since a Carnot heat engine is also a reversible engine, the efficiency
Carnot's theorem (thermodynamics)
Carnot's_theorem_(thermodynamics)
Internal combustion engine powered by gaseous fuel
gas-fuelled atmospheric engine. In 1876 they acquired the rights to the more efficient Otto four-stroke cycle engine. An engine is on display at Science
Gas_engine
Type of engine
different efficiencies and losses. For example, rocket engines can be up to 60–70% energy efficient in terms of accelerating the propellant. The rest is
Reaction_engine
Airbreathing jet engine designed to provide thrust by driving a fan
of a gas turbine engine which adds kinetic energy to the air passing through it by burning fuel, and a ducted fan powered by energy from the gas turbine
Turbofan
Idealized thermodynamic cycle
application of work to the system. In a Carnot cycle, a system or engine transfers energy in the form of heat between two thermal reservoirs at temperatures
Carnot_cycle
Thermodynamic cycle
mechanical energy—meaning the engine is more efficient. The disadvantage of the four-stroke Atkinson-cycle engine versus the more common Otto-cycle engine is
Atkinson_cycle
Practical uses for Stirling engine technology
free fuel for the engine, thus reducing waste removal costs. The overall process can be efficient and cost-effective. Inspirit Energy, a UK-based company
Applications of the Stirling engine
Applications_of_the_Stirling_engine
Type of internal and continuous combustion engine
high-powered engine in a very small and light package. However, they are not as responsive and efficient as small piston engines over the wide range of engine speed
Gas-turbine_engine
Engine with large amounts of ceramics
diesel engines occurred after the 1970s energy crisis, resulting in a new market for fuel-efficient vehicles. A newly developed gas turbine engine design
Ceramic_engine
Vehicle propelled fully or mostly by electricity
are much more efficient than internal combustion engines and have few direct emissions. At the same time, they do rely on electrical energy that is generally
Electric_vehicle
Plug-in hybrid sports car developed by BMW
safety car. The BMW Vision EfficientDynamics was a plug-in hybrid concept car with a 1.5L three-cylinder turbo-diesel engine. Additionally, there were
BMW_i8
Technology used in concentrated solar power stations
concentrates solar energy to a focal point at the center of the dish. The concentrated solar energy drives a Stirling cycle engine, which operates by
Solar-powered_Stirling_engine
Class of hypothetical megastructures
combines aspects of the Shkadov thruster and Caplan engine to produce an even more powerful and efficient mechanism for controlling a star's movement. Essentially
Stellar_engine
Heat engine that performs mechanical work using steam as its working fluid
century, when the more efficient steam turbine and the internal combustion engine resulted in the rapid replacement of the steam engines. The steam turbine
History_of_the_steam_engine
Efficiency leads to increased demand
production and a higher material quality of life. For example, a more efficient steam engine allowed the cheaper transport of goods and people that contributed
Jevons_paradox
Type of jet engine
temperature jet to create thrust. While these engines are capable of giving high thrust levels, they are most efficient at very high speeds (over Mach 1), due
Airbreathing_jet_engine
Physical quantity
production. Energy portal Physics portal Renewable energy portal Combustion Efficient energy use Energy democracy Energy crisis Energy recovery Energy recycling
Energy
Heat pump powered by sound
existing thermocouple based systems, or a proposed Stirling engine used in ASRG prototype. SoundEnergy developed the THEAC system that turns heat, typically
Thermoacoustic_heat_engine
Rocket engine that uses detonation waves to combust fuel and oxidizer
required in the engine, which could significantly reduce overall weight and cost. Key issues for further development include fast and efficient mixing of the
Pulse_detonation_engine
Aircraft fuel efficiency
transport energy efficiency of aircraft. Fuel efficiency is increased with better aerodynamics and by reducing weight, and with improved engine brake-specific
Fuel_economy_in_aircraft
System that powers a motor vehicle
energy from the engine or motor to the drivetrain. It ensures that the power generated by the engine is delivered to the wheels in the most efficient
Powertrain
Distance traveled by a vehicle compared to volume of fuel consumed
more efficient, while a lower number means less efficient. Conversions of units: While the thermal efficiency (mechanical output to chemical energy in fuel)
Fuel_economy_in_automobiles
like flexible generation, including engine power plants. Engine power plants are also used as a reliable and efficient technology solution for: emergency
Engine_power_plant
Simultaneous generation of electricity and useful heat
the use of a heat engine or power station to generate electricity and useful heat at the same time. Cogeneration is a more efficient use of fuel or heat
Cogeneration
Subsidiary of the Kohler Company
Energy, a Rehlko company, is a multinational specialist in the sale, engineering, installation and maintenance of power plants that use gas engines.
Clarke_Energy
Systems for generating thrust for ships and boats on water
boats and have been proposed for energy-efficient propulsion. Development in liquefied natural gas (LNG) fueled engines are gaining recognition for their
Marine_propulsion
Aircraft class powered by jet propulsion engines
around 10,000–15,000 m (33,000–49,000 ft) or higher, where jet engines operate most efficiently. This contrasts with propeller-driven aircraft, which achieve
Jet_aircraft
Supersonic atmospheric jet engine
of airbreathing jet engine that requires forward motion of the engine to provide air for combustion. Ramjets work most efficiently at supersonic speeds
Ramjet
is because an engine, theoretically, produces double the power when operated twice as fast if combustion (thermal) efficiency and energy loss remain the
Formula_One_engines
Pistonless internal-combustion engine
conventional piston engine (reciprocating engine), a wave disk engine works at higher peak temperature, which theoretically makes it more efficient. The design
Wave_disk_engine
Branded engine design
diesel engines SDI (engine) Turbo-diesel "Technology – TDI – Super-efficient diesel engines for power with economy". Volkswagen.co.uk. Volkswagen UK. 2010
TDI_(engine)
Type of spacecraft maneuver
then uses its engines to further accelerate as it is falling, thereby achieving additional speed. The resulting maneuver is a more efficient way to gain
Oberth_effect
Type of hybrid vehicle
are low, the small combustion engine can generate power at its optimum settings at all times, making them more efficient in extensive city driving. Power-split
Hybrid_electric_vehicle
US Nuclear thermal rocket engine project (1956–1973)
intercontinental ballistic missiles. Nuclear thermal rocket engines promised to be more efficient than chemical ones. After the formation of NASA in 1958
NERVA
manufacturer's claims that reducing engine size provides a more efficient car. Some tests have shown that some downsize engines have lower fuel economy in everyday
Engine_downsizing
Method for matching variable production with demand
Air Energy Storage and Technology Development". Energies. 10 (7): 991. doi:10.3390/en10070991. "Wind plus compressed air equals efficient energy storage
Compressed-air_energy_storage
Type of internal combustion engine that uses compression to create combustion
heat energy into work by means of isothermal change in condition. According to Diesel, this ignited the idea of creating a highly efficient engine that
Diesel_engine
Type of rocket engine
After the engine is started, the detonation is self-sustaining. One detonation ignites the fuel/oxidizer mixture, which releases the energy necessary
Rotating_detonation_engine
Car and truck technology
high-tech engine and power train designs. The chief characteristic of an automotive engine (compared to a stationary engine or a marine engine) is a high
Automotive_engine
Engine combustion process
cooling (green) The Diesel engine is a heat engine: it converts heat into work. During the bottom isentropic processes (blue), energy is transferred into the
Diesel_cycle
Physical law for entropy and heat
heat engines between two heat reservoirs are less efficient than a Carnot engine operating between the same reservoirs. All reversible heat engines between
Second_law_of_thermodynamics
Finnish energy and marine technology company
"Market shares". wartsila.com. most efficient 4-stroke diesel engine, wartsila.com take-over of Wärtsilä's 2-stroke engine business, wartsila.com "Finsk koncern
Wärtsilä
Degree to which a process minimizes waste of resources
of work done to thermal energy consumed Thermodynamic efficiency: ratio between actual work and ideal work Efficient energy use, the objective of maximising
Efficiency
Efficiency of incineration in terms of usable heat energy and minimization of emissions
burning process in converting fuel into heat energy. It is measured by the proportion of fuel that is efficiently burned and converted into useful heat, while
Combustion_efficiency
Engine component
engine compressors provide the compression part of the gas turbine engine thermodynamic cycle. There are three basic categories of gas turbine engine
Gas turbine engine compressors
Gas_turbine_engine_compressors
Petrol engine from Renault
Cléon-Fonte engine in the Renault Twingo. The D Engine was designed because the 1.2-liter Energy Engine with its hemispherical cylinder head and exhaust
Renault_D-Type_engine
Technology using sunlight for heat
Solar thermal energy (STE) is a form of energy and a technology for harnessing solar energy to generate thermal energy for use in industry, and in the
Solar_thermal_energy
Consumption of energy by animals and societies
the energy industry Climate change White's law Energy conservation, the practice of decreasing the quantity of energy used Efficient energy use Energy efficiency –
Energy_consumption
Mass ratio of air to a fuel
Lean mixtures are more efficient but may cause higher temperatures, which can lead to the formation of nitrogen oxides. Some engines are designed with features
Air–fuel_ratio
Change in velocity per amount of fuel
(in kg/s or lbm/s). It serves as a measure of how efficiently an engine, such as a rocket or jet engine, generates thrust from propellant. Isp is the effective
Specific_impulse
Joint R&D project to create an energy efficient engine for furyure tugboat designs
Marine Technology. The goal of the project is to create an energy efficient tugboat engine to be integrated into future tugboat designs. The purpose of
E3_Tug_Project
Jet engine where combustion takes place in supersonic airflow
cone. This allows the scramjet to operate efficiently at extremely high speeds. Although scramjet engines have been used in a handful of operational
Scramjet
Steam engine where steam is expanded in stages
cylinders. Multiple-expansion engines employ additional cylinders, of progressively lower pressure, to extract further energy from the steam. Invented in
Compound_steam_engine
Electrothermal thruster in development
entering the engine, the gas is first heated to a "cold plasma" by a helicon RF antenna/coupler that bombards the gas with electromagnetic energy, at a frequency
Variable Specific Impulse Magnetoplasma Rocket
Variable_Specific_Impulse_Magnetoplasma_Rocket
Vehicle with hydrogen internal combustion engine
A hydrogen internal combustion engine vehicle (HICEV) is a type of hydrogen vehicle using an internal combustion engine (ICE) that burns hydrogen fuel
Hydrogen internal combustion engine vehicle
Hydrogen_internal_combustion_engine_vehicle
Nuclear spacecraft propulsion technology
improved upon the early prototypes to create powerful engines that were several times more efficient than chemical counterparts. However, the program was
Nuclear_thermal_rocket
Car that uses pneumatic motors
tanks as vehicle structure, high-pressure tanks, new rotary engines, and a more efficient heat exchanger. Compressed-air propulsion may also be incorporated
Compressed-air_vehicle
Series of turbocharged, direct-injection gasoline engines
Department of Energy. The V6 EcoBoost engines are being assembled at Cleveland Engine Plant No. 1 in Brook Park, Ohio. The 2.0-liter I4 EcoBoost engines were produced
Ford_EcoBoost_engine
Energy collected from renewable resources
hydroelectricity, bioenergy, or geothermal power. Renewable energy systems have rapidly become more efficient and cheaper over the past 30 years. A large majority
Renewable_energy
the science of thermodynamics by describing the unsurpassably efficient Carnot engine. His insight has been described as "real genius" and compared to
Carnot_engine_explanation
Type of propelling nozzle
sea level) main engines (SSMEs), which spent most of their powered trajectory in near-vacuum, while the shuttle's two sea-level efficient solid rocket boosters
Rocket_engine_nozzle
Fuel efficiency of an engine design with respect to thrust output
50 lb/(lbf·h), better than subsonic engines of the time. The Olympus 593 used in the Concorde was the world's most efficient jet engine. However, Concorde ultimately
Thrust-specific fuel consumption
Thrust-specific_fuel_consumption
Automobile factory
annually on energy costs while reducing annual CO2 emissions by 12,000 metric tons. Current product: 3.2L Pentastar V6 engine 3.6L Pentastar V6 engine Trenton
Trenton_Engine_Complex
Thermodynamic cycle for spark ignition piston engines
engine; hence, an intercooler is used to remove some energy as heat and so reduce the intake temperature. Such a scheme both increases the engine's efficiency
Otto_cycle
Overview of and topical guide to energy
– energy unit equal to the energy released when burning one tonne of oil (~42 GJ). Volt Ampere Coulomb Efficient energy use Energy recovery Energy recycling
Outline_of_energy
Series of motor scooters from Honda
introduction in 2006, the scooter quickly gained popularity due to its fuel efficient engine and comfortable riding experience. It is designed to cater to urban
Honda_Click
Dual fuel engine
A marine LNG engine is a dual fuel engine that uses natural gas and bunker fuel to convert chemical energy in to mechanical energy. Due to natural gas'
Marine_LNG_Engine
Australian thermal performance for residential homes
excellence in design and construction" which assisted builders in marketing energy efficient home designs. The certification was developed by the Glass, Mass and
Nationwide House Energy Rating Scheme
Nationwide_House_Energy_Rating_Scheme
Airbreathing jet engine which is typically used in aircraft
The turbojet is an airbreathing jet engine which is typically used in aircraft. It consists of a gas turbine with a propelling nozzle. The gas turbine
Turbojet
Means of creating force leading to movement
and have been proposed for energy-efficient propulsion. Recent development in liquified natural gas (LNG) fueled engines are gaining recognition for
Propulsion
Liquid fuel used in diesel engines
capable of running on diesel fuel. This is because diesel engines are more fuel efficient, and diesel fuel is less prone to catching fire. Some of these
Diesel_fuel
Design for a new type of internal combustion engine
this design can be smaller, lighter and significantly more efficient than traditional engines of comparable horsepower and displacement. The design replaces
IRIS_engine
Type of biofuel
for use in gasoline engines, but only after engine modifications are made since pure ethanol contains only a fraction of the energy of an equivalent volume
Ethanol_fuel
Kind of engine
to power the engine. Because Engine efficiency is defined by the relationship between the amount of work done and the potential energy in the fuel consumed
Vacuum_engine
Condition in diesel engines
usually because the diesel engine is running at only a small percentage of its rated output. For efficient combustion, a diesel engine should not be run under
Wet_stacking
ENERGY EFFICIENT-ENGINE
ENERGY EFFICIENT-ENGINE
Boy/Male
Tamil
Energy
Girl/Female
Gujarati, Indian
Efficient
Girl/Female
Arabic
Efficient
Boy/Male
Tamil
Energy
Boy/Male
Tamil
Rahulraj | ராஹà¯à®²à®°à®¾à®œ
Efficient, Capable
Rahulraj | ராஹà¯à®²à®°à®¾à®œ
Girl/Female
Gujarati, Hindu, Indian, Jain, Kannada, Malayalam, Marathi, Sanskrit, Telugu
Energy
Boy/Male
Indian, Punjabi, Sikh
Intelligent; Efficient
Boy/Male
Tamil
Energy
Boy/Male
Hindu
Energy
Girl/Female
Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Telugu
Energy
Boy/Male
Hindu, Indian
Energy
Boy/Male
Hindu
Energy
Boy/Male
Bengali, Hindu, Indian, Kannada, Marathi, Telugu
Energy
Boy/Male
Hindu, Indian, Punjabi, Sikh
Capable; Skilful; Efficient
Boy/Male
Hindu
Efficient, Capable
Girl/Female
Tamil
Energy
Girl/Female
Assamese, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
Agile; Efficient
Boy/Male
Hindu, Indian, Marathi
An Efficient Architect
Boy/Male
Indian, Sanskrit
Skillful; Efficient
Boy/Male
Hindu, Indian
Energy
ENERGY EFFICIENT-ENGINE
ENERGY EFFICIENT-ENGINE
Girl/Female
Arabic, Lebanese, Muslim, Sindhi
Territory
Boy/Male
Gujarati, Hindu, Indian, Jain, Kannada, Marathi
Saint; Ruling Well; Strict in Religious Vows
Boy/Male
Hindu, Indian, Punjabi, Sikh
Win; Victory
Girl/Female
Australian, Latin
Sabine; The Sabines were Tribe Living in Central Italy
Boy/Male
Gujarati, Hindu, Indian
Joyful
Surname or Lastname
English
English : unexplained. The connection with Isley Walton in Leicestershire is not clear.Possibly a respelling of German Eisele or Swiss Isler.
Boy/Male
Hindu, Indian, Sanskrit
Devoted to Krishna
Surname or Lastname
English
English : habitational name from Hidden in Berkshire or Clayhidon in Devon, recorded in Domesday Book as Hidone, from Old English hī(e)g ‘hay’ + dūn ‘hill’.
Female
English
(עֲזוּבָה) Anglicized form of Hebrew Azuwbah, AZUBAH means "forsaken." In the bible, this is the name of several characters, including Caleb's wife and the mother of Jehoshaphat.Â
Boy/Male
Hindu, Indian
Benevolent
ENERGY EFFICIENT-ENGINE
ENERGY EFFICIENT-ENGINE
ENERGY EFFICIENT-ENGINE
ENERGY EFFICIENT-ENGINE
ENERGY EFFICIENT-ENGINE
n.
An efficient cause; a prime mover.
n.
the combined healthy action of every organ of a particular system; as, the digestive synergy.
a.
Making or doing throughly; efficient; effectual.
n.
Alt. of Efficiency
n.
The quality of being efficient or producing an effect or effects; efficient power; effectual agency.
a.
Equal to the end proposed; adequate to wants; enough; ample; competent; as, provision sufficient for the family; an army sufficient to defend the country.
n.
Power efficiently and forcibly exerted; vigorous or effectual operation; as, the energy of a magistrate.
a.
Not efficient; not producing the effect intended or desired; inefficacious; as, inefficient means or measures.
n.
The ratio of useful work to energy expended.
n.
A number, commonly used in computation as a factor, expressing the amount of some change or effect under certain fixed conditions as to temperature, length, volume, etc.; as, the coefficient of expansion; the coefficient of friction.
a.
Possessing force; characterized by force, efficiency, or energy; powerful; efficacious; impressive; influential.
a.
Wanting, to make up completeness; wanting, as regards a requirement; not sufficient; inadequate; defective; imperfect; incomplete; lacking; as, deficient parts; deficient estate; deficient strength; deficient in judgment.
n.
Causing effects; producing results; that makes the effect to be what it is; actively operative; not inactive, slack, or incapable; characterized by energetic and useful activity; as, an efficient officer, power.
n.
The privilege or benefit of clergy.
a. & a. pron.
Every one. Cf.
n.
The quality of being inefficient; want of power or energy sufficient; want of power or energy sufficient for the desired effect; inefficacy; incapacity; as, he was discharged from his position for inefficiency.
a.
Sufficient for one's self without external aid or cooperation.
a.
Self-sufficient; self-satisfied; content.
a.
Incapable of, or indisposed to, effective action; habitually slack or remiss; effecting little or nothing; as, inefficient workmen; an inefficient administrator.
n.
Strength of expression; force of utterance; power to impress the mind and arouse the feelings; life; spirit; -- said of speech, language, words, style; as, a style full of energy.