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Thermodynamics & Heat Transfer

Basic Concepts and Definitions

Thermodynamics studies energy, heat, work, and the properties of matter and thei...

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Brayton Cycle

The Brayton cycle (gas-turbine cycle) is an idealized thermodynamic cycle that m...

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Carnot Cycle

The Carnot cycle is an idealized reversible heat engine cycle operating between ...

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Closed Systems

Closed systems (control mass) are thermodynamic systems in which a fixed amount ...

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Combustion

Combustion is a rapid exothermic chemical reaction between a fuel and an oxidize...

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Compressors

Compressors are turbomachines or positive-displacement devices that increase the...

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Diesel Cycle

The ideal Diesel cycle is a four-step thermodynamic model for compression-igniti...

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Dual Cycle

The dual (mixed) cycle is an air‑standard internal combustion cycle that models ...

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Enthalpy

Enthalpy (H) is a thermodynamic state function defined as H = U + pV for a syste...

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Entropy

Entropy is a state function that quantifies the dispersal of energy and the numb...

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Exergy

Exergy (also called availability) is the maximum useful work obtainable from a s...

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The First Law of Thermodynamics

The First Law of Thermodynamics is a statement of energy conservation for thermo...

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Gas Mixtures

Gas mixtures (ideal) are composed of two or more gaseous species that share the ...

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Gas Turbines

Gas turbines operate on the Brayton (or Joule) cycle: air is compressed, fuel is...

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Heat Pumps

A heat pump is a device that transfers thermal energy from a lower-temperature r...

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Humid Air / Psychrometry

Psychrometry (humid air) studies the thermodynamic and transport properties of a...

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Ideal Gases

Ideal gas theory models a dilute gas in which (1) molecules are point particles ...

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Nozzles and Diffusers

Nozzles and diffusers are steady-flow aerodynamic devices that convert between p...

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Open Systems

Open systems (control volumes) are thermodynamic systems through which mass and ...

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Otto Cycle

The Otto cycle is the idealized thermodynamic cycle for spark-ignition (SI) inte...

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Pure Substances and Phase Transitions

Pure substances have distinct phases (solid, liquid, vapor) with phase boundarie...

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Rankine Cycle

The Rankine cycle is the basic thermodynamic cycle for steam power plants. It co...

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Real Gases

Real gases deviate from ideal-gas behaviour because of finite molecular size and...

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Refrigeration Cycles

Refrigeration cycles transfer heat from a low-temperature reservoir to a higher-...

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The Second Law of Thermodynamics

The Second Law of Thermodynamics establishes the direction of spontaneous proces...

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Steam Turbines

Steam turbines convert thermal energy of steam into mechanical work by expansion...

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Systems and Control Volumes

A system (control mass) is a fixed amount of matter tracked through time; no mas...

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Systems with Continuous Flow

Systems with Continuous Flow (control-volume, steady or unsteady) describe mass ...

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Vapor and Vapor Tables

Vapor and vapor tables concern the thermodynamic properties of a pure substance ...

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The Zeroth Law of Thermodynamics

The Zeroth Law of Thermodynamics states that if two thermodynamic systems A and ...

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