Retrofit
Overview
 
Retrofitting refers to the addition of new technology or features to older systems.
  • power plant retrofit, improving power plant efficiency / increasing output / reducing emissions
  • home energy retrofit, the improving of existing buildings with energy efficiency equipment
  • seismic retrofit
    Seismic retrofit
    Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. With better understanding of seismic demand on structures and with our recent experiences with large earthquakes near urban centers,...

    , the process of strengthening older buildings in order to make them earthquake resistant

Retrofit projects replace or add equipment to existing power plants to improve their energy efficiency,
increase their output and extend their lifespan, while decreasing emissions.
  • Saving on capex
    CAPEX
    CAPEX, also known as the Kerala State Cashew Workers Apex Industrial Co-operative Society, is an organization managed by the government of Kerala to promote the cashew industry and especially the export market for cashews.-Organization:...

     while benefiting from new technologies
  • Optimization of existing plant components
  • Adaptation of the plant for new or changed products
  • Increase in piece number and cycle time
  • Guaranteed spare parts availability

Principally retrofitting describes the measures taken in the manufacturing industry to allow new or updated parts to be fitted to old or outdated assemblies (like blades to wind turbines).

The production of retrofit parts is necessary in manufacture when the design of a large assembly is changed or revised.
Encyclopedia
Retrofitting refers to the addition of new technology or features to older systems.
  • power plant retrofit, improving power plant efficiency / increasing output / reducing emissions
  • home energy retrofit, the improving of existing buildings with energy efficiency equipment
  • seismic retrofit
    Seismic retrofit
    Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. With better understanding of seismic demand on structures and with our recent experiences with large earthquakes near urban centers,...

    , the process of strengthening older buildings in order to make them earthquake resistant

Power plant steam turbine retrofits

Retrofit projects replace or add equipment to existing power plants to improve their energy efficiency,
increase their output and extend their lifespan, while decreasing emissions.

Benefits of a retrofit

  • Saving on capex
    CAPEX
    CAPEX, also known as the Kerala State Cashew Workers Apex Industrial Co-operative Society, is an organization managed by the government of Kerala to promote the cashew industry and especially the export market for cashews.-Organization:...

     while benefiting from new technologies
  • Optimization of existing plant components
  • Adaptation of the plant for new or changed products
  • Increase in piece number and cycle time
  • Guaranteed spare parts availability

Manufacturing

Principally retrofitting describes the measures taken in the manufacturing industry to allow new or updated parts to be fitted to old or outdated assemblies (like blades to wind turbines).

The production of retrofit parts is necessary in manufacture when the design of a large assembly is changed or revised. If, after the changes have been implemented, a customer (with an old version of the product) wishes to purchase a replacement part then retrofit parts and assembling techniques will have to be used so that the revised parts will fit suitably onto the older assembly.

Another example of this is car customizing
Custom car
A custom car is a passenger vehicle that has been modified in either of the following two ways. First, a custom car may be altered to improve its performance, often by altering or replacing the engine and transmission. Second, a custom car may be a personal "styling" statement, making the car look...

, where older vehicles are fitted with new technologies: power window
Power window
Power windows or electric windows as well as electric or power window lifts are automobile windows which can be raised and lowered by depressing a button or switch, as opposed to using a hand-turned crank handle.- History :Packard introduced the first power windows in the 1940 Packard...

s, cruise control
Cruise control
Cruise control is a system that automatically controls the speed of a motor vehicle. The system takes over the throttle of the car to maintain a steady speed as set by the driver.-History:...

, remote keyless system
Remote keyless system
A remote keyless system is a system designed to permit or deny access to premises or automobiles. While the "remote" system is portable and has locking capabilities, the exact phrase "keyless entry" is solely reserved for the numeric dials or keypads that are located on or near the driver side door...

s, electric fuel pump
Fuel pump
A fuel pump is a frequently essential component on a car or other internal combustion engined device. Many engines do not require any fuel pump at all, requiring only gravity to feed fuel from the fuel tank through a line or hose to the engine...

s, etc.

Environmental management

The term is also used in the field of environmental engineering
Environmental engineering
Environmental engineering is the application of science and engineering principles to improve the natural environment , to provide healthy water, air, and land for human habitation and for other organisms, and to remediate polluted sites...

, particularly to describe construction
Construction
In the fields of architecture and civil engineering, construction is a process that consists of the building or assembling of infrastructure. Far from being a single activity, large scale construction is a feat of human multitasking...

 or renovation projects on previously-built sites, to improve water quality
Water quality
Water quality is the physical, chemical and biological characteristics of water. It is a measure of the condition of water relative to the requirements of one or more biotic species and or to any human need or purpose. It is most frequently used by reference to a set of standards against which...

 in nearby stream
Stream
A stream is a body of water with a current, confined within a bed and stream banks. Depending on its locale or certain characteristics, a stream may be referred to as a branch, brook, beck, burn, creek, "crick", gill , kill, lick, rill, river, syke, bayou, rivulet, streamage, wash, run or...

s, river
River
A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including...

s or lake
Lake
A lake is a body of relatively still fresh or salt water of considerable size, localized in a basin, that is surrounded by land. Lakes are inland and not part of the ocean and therefore are distinct from lagoons, and are larger and deeper than ponds. Lakes can be contrasted with rivers or streams,...

s. The concept has also been applied to changing the output mix of energy
Energy
In physics, energy is an indirectly observed quantity. It is often understood as the ability a physical system has to do work on other physical systems...

 from power plants to cogeneration
Cogeneration
Cogeneration is the use of a heat engine or a power station to simultaneously generate both electricity and useful heat....

 in urban area
Urban area
An urban area is characterized by higher population density and vast human features in comparison to areas surrounding it. Urban areas may be cities, towns or conurbations, but the term is not commonly extended to rural settlements such as villages and hamlets.Urban areas are created and further...

s with a potential for district heating
District heating
District heating is a system for distributing heat generated in a centralized location for residential and commercial heating requirements such as space heating and water heating...

.

Sites with extensive impervious surface
Impervious surface
Impervious surfaces are mainly artificial structures--such as pavements that are covered by impenetrable materials such as asphalt, concrete, brick, and stone--and rooftops...

s (such as parking lots and rooftops) can generate high levels of stormwater
Stormwater
Stormwater is water that originates during precipitation events. It may also be used to apply to water that originates with snowmelt that enters the stormwater system...

 runoff
Surface runoff
Surface runoff is the water flow that occurs when soil is infiltrated to full capacity and excess water from rain, meltwater, or other sources flows over the land. This is a major component of the water cycle. Runoff that occurs on surfaces before reaching a channel is also called a nonpoint source...

 during rainstorms, and this can damage nearby water bodies. These problems can often be addressed by installing new stormwater management features on the site, a process that practitioners refer to as stormwater retrofitting. Stormwater management practices used in retrofit projects include rain garden
Rain garden
A rain garden is a planted depression that allows rainwater runoff from impervious urban areas like roofs, driveways, walkways, parking lots, and compacted lawn areas the opportunity to be absorbed...

s, permeable paving
Permeable paving
Permeable paving is a range of materials and techniques for paving roads, cycle-paths, parking lots and sidewalks that allow the movement of water and air around the paving material. Although some porous paving materials appear nearly indistinguishable from nonporous materials, their environmental...

 and green roof
Green roof
A green roof is a roof of a building that is partially or completely covered with vegetation and a growing medium, planted over a waterproofing membrane. It may also include additional layers such as a root barrier and drainage and irrigation systems...

s. (See also stream restoration
Stream restoration
Stream restoration or river restoration, sometimes called river reclamation in the UK, describes a set of activities that help improve the environmental health of a river or stream. Improved health may be indicated by expanded habitat for diverse species and reduced stream bank erosion...

.)

See also

  • Aftermarket kit
  • Diesel particulate filter
    Diesel Particulate Filter
    A diesel particulate filter is a device designed to remove diesel particulate matter or soot from the exhaust gas of a diesel engine. Wall-flow diesel particulate filters usually remove 85% or more of the soot, and under certain conditions can attain soot removal efficiencies of close to 100%...

     (DPF)
  • Electric vehicle conversion
    Electric vehicle conversion
    An electric vehicle conversion is the modification of a conventional internal combustion engine vehicle to electric propulsion, creating an all-electric or plug-in hybrid electric vehicle.-Elements of a conversion:...

  • Reindustrialization
    Reindustrialization
    Reindustrialization is the economic, social, and political process of organizing national resources for the purpose of re-establishing deteriorated industries or change declining or contaminant industries to emerging or cleaner ones. The process often proceeds as a result of a need to reinvigorate...

  • Scrappage program
    Scrappage program
    A scrappage program is a government budget program to promote the replacement of old vehicles with modern vehicles. Scrappage programs generally have the dual aim of stimulating the automobile industry and removing inefficient, high emissions vehicles from the road...

  • Software patching

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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