Vapor Compression Refrigeration Wikipedia

Vapor-compression refrigeration - Wikipedia.

Vapour-compression refrigeration or vapor-compression refrigeration system (VCRS), in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely used method for air conditioning of buildings and automobiles. It is also used in domestic and commercial refrigerators, large-scale warehouses for chilled or frozen storage of foods ....

https://en.wikipedia.org/wiki/Vapor-compression_refrigeration.

Vapor-compression evaporation - Wikipedia.

Vapor-compression evaporation is the evaporation method by which a blower, compressor or jet ejector is used to compress, and thus, increase the pressure of the vapor produced.Since the pressure increase of the vapor also generates an increase in the condensation temperature, the same vapor can serve as the heating medium for its "mother" liquid or solution being ....

https://en.wikipedia.org/wiki/Vapor-compression_evaporation.

Refrigeration - Wikipedia.

The vapor-compression cycle is used in most household refrigerators as well as in many large commercial and industrial refrigeration systems. Figure 1 provides a schematic diagram of the components of a typical vapor-compression refrigeration system. The thermodynamics of the cycle can be analyzed on a diagram as shown in Figure 2..

https://en.wikipedia.org/wiki/Refrigeration.

Heat pump and refrigeration cycle - Wikipedia.

The vapor-compression cycle is used by many refrigeration, air conditioning and other cooling applications and also within heat pump for heating applications. There are two heat exchangers, one being the condenser, which is hotter and releases heat, and the other being the evaporator, which is colder and accepts heat.For applications which need to operate in both heating and ....

https://en.wikipedia.org/wiki/Heat_pump_and_refrigeration_cycle.

Propane - Wikipedia.

Propane (/ ' p r o? p eI n /) is a three-carbon alkane with the molecular formula C 3 H 8.It is a gas at standard temperature and pressure, but compressible to a transportable liquid.A by-product of natural gas processing and petroleum refining, it is commonly used as a fuel in domestic and industrial applications and in low-emissions public transportation. . Discovered in 1857 by the ....

https://en.wikipedia.org/wiki/Propane.

World Refrigeration Day - Wikipedia.

World Refrigeration Day is an international day established by the World Refrigeration Day Secretariat in Derbyshire, England.Held annually on 26 June, it was created to raise awareness about the importance of refrigeration technologies in everyday life and to raise the profile of the refrigeration, air-conditioning and heat-pump sector. The day was chosen to celebrate the birth ....

https://en.wikipedia.org/wiki/World_Refrigeration_Day.

Air source heat pump - Wikipedia.

An air source heat pump (ASHP) is a type of heat pump that can absorb heat from outside a structure and release it inside using the same vapor-compression refrigeration process and much the same equipment as air conditioners but used in the opposite direction. Unlike an air conditioning unit, most ASHPs are reversible and are able to either warm or cool buildings and ....

https://en.wikipedia.org/wiki/Air_source_heat_pump.

Air conditioning - Wikipedia.

Air conditioning, often abbreviated as A/C or AC, is the process of removing heat from an enclosed space to achieve a more comfortable interior environment (sometimes referred to as 'comfort cooling') and in some cases also strictly controlling the humidity of internal air. Air conditioning can be achieved using a mechanical 'air conditioner' or alternatively a variety of ....

https://en.wikipedia.org/wiki/Air_conditioning.

Mechanical, electrical, and plumbing - Wikipedia.

The mechanical component of MEP is an important superset of HVAC services. Thus, it incorporates the control of environmental factors (psychrometrics), either for human comfort or for the operation of machines.Heating, cooling, ventilation and exhaustion are all key areas to consider in the mechanical planning of a building. In special cases, water cooling/heating, ....

https://en.wikipedia.org/wiki/Mechanical,_electrical,_and_plumbing.

Ice - Wikipedia.

Ice may be any one of the 19 known solid crystalline phases of water, or in an amorphous solid state at various densities.. Most liquids under increased pressure freeze at higher temperatures because the pressure helps to hold the molecules together. However, the strong hydrogen bonds in water make it different: for some pressures higher than 1 atm (0.10 MPa), water freezes at a ....

https://en.wikipedia.org/wiki/Ice.

Vapour pressure of water - Wikipedia.

The vapour pressure of water is the pressure exerted by molecules of water vapor in gaseous form (whether pure or in a mixture with other gases such as air). The saturation vapour pressure is the pressure at which water vapour is in thermodynamic equilibrium with its condensed state.At pressures higher than vapour pressure, water would condense, whilst at lower pressures it ....

https://en.wikipedia.org/wiki/Vapour_pressure_of_water.

Condenser (heat transfer) - Wikipedia.

In systems involving heat transfer, a condenser is a heat exchanger used to condense a gaseous substance into a liquid state through cooling. In so doing, the latent heat is released by the substance and transferred to the surrounding environment. Condensers are used for efficient heat rejection in many industrial systems. Condensers can be made according to numerous ....

https://en.wikipedia.org/wiki/Condenser_(heat_transfer).

Thermodynamic cycle - Wikipedia.

The most common refrigeration cycle is the vapor compression cycle, which models systems using refrigerants that change phase. The absorption refrigeration cycle is an alternative that absorbs the refrigerant in a liquid solution rather than evaporating it. Gas refrigeration cycles include the reversed Brayton cycle and the Hampson-Linde cycle..

https://en.wikipedia.org/wiki/Thermodynamic_cycle.

Hydronics - Wikipedia.

Hydronics (hydro- meaning "water") is the use of liquid water or gaseous water (steam) or a water solution (usually glycol with water) as heat-transfer medium in heating and cooling systems.The name differentiates such systems from oil and refrigerant systems. Historically, in large-scale commercial buildings such as high-rise and campus facilities, a hydronic system may include ....

https://en.wikipedia.org/wiki/Hydronics.

Heat pipe - Wikipedia.

A typical heat pipe consists of a sealed pipe or tube made of a material that is compatible with the working fluid such as copper for water heat pipes, or aluminium for ammonia heat pipes. Typically, a vacuum pump is used to remove the air from the empty heat pipe. The heat pipe is partially filled with a working fluid and then sealed. The working fluid mass is chosen so that ....

https://en.wikipedia.org/wiki/Heat_pipe.

Phase diagram - Wikipedia.

The simplest phase diagrams are pressure-temperature diagrams of a single simple substance, such as water.The axes correspond to the pressure and temperature.The phase diagram shows, in pressure-temperature space, the lines of equilibrium or phase boundaries between the three phases of solid, liquid, and gas.. The curves on the phase diagram show the points where the ....

https://en.wikipedia.org/wiki/Phase_diagram.

Cold - Wikipedia.

Cold is the presence of low temperature, especially in the atmosphere.In common usage, cold is often a subjective perception.A lower bound to temperature is absolute zero, defined as 0.00 K on the Kelvin scale, an absolute thermodynamic temperature scale. This corresponds to -273.15 ?C on the Celsius scale, -459.67 ?F on the Fahrenheit scale, and 0.00 ?R on the Rankine scale..

https://en.wikipedia.org/wiki/Cold.

ASHRAE - Wikipedia.

The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE / ' ae ? r eI / ASH-ray) is an American professional association seeking to advance heating, ventilation, air conditioning and refrigeration (HVAC&R) systems design and construction. ASHRAE has more than 57,000 members in more than 132 countries worldwide. Its members are composed of ....

https://en.wikipedia.org/wiki/ASHRAE.

Air handler - Wikipedia.

An air handler, or air handling unit (often abbreviated to AHU), is a device used to regulate and circulate air as part of a heating, ventilating, and air-conditioning system. An air handler is usually a large metal box containing a blower, heating or cooling elements, filter racks or chambers, sound attenuators, and dampers. Air handlers usually connect to a ductwork ventilation system ....

https://en.wikipedia.org/wiki/Air_handler.

Thermal comfort - Wikipedia.

Thermal comfort is the condition of mind that expresses satisfaction with the thermal environment and is assessed by subjective evaluation (ANSI/ASHRAE Standard 55). The human body can be viewed as a heat engine where food is the input energy. The human body will release excess heat into the environment, so the body can continue to operate..

https://en.wikipedia.org/wiki/Thermal_comfort.

Thermodynamic process - Wikipedia.

A quasi-static thermodynamic process can be visualized by graphically plotting the path of idealized changes to the system's state variables.In the example, a cycle consisting of four quasi-static processes is shown. Each process has a well-defined start and end point in the pressure-volume state space.In this particular example, processes 1 and 3 are isothermal, whereas ....

https://en.wikipedia.org/wiki/Thermodynamic_process.