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Glossary
A riddle wrapped up in an enigma – this is not meant to be the world of Technologies! Readers may well ask themselves now and again what some of this engineering mumbo-jumbo might mean. Here's a glossary of technical terms and abbreviations to help out.
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Absorption / Adsorption
Absorption and adsorption processes are often used in the chemical industry for the separation of substance mixtures. With absorption the absorbed substance penetrates into the absorbent material (a sponge takes up liquid) while adsorption means that a substance is bound by attachment to the surface of another substance (filtering with activated carbon). |
AIP
Air Independent Propulsion, e.g., the fuel cell or the Stirling motor in submarines. |
Alternating-step process
The stator section switching process on the Transrapid with two motor systems on the left and right with offset stator sections. Switching is carried out in a currentless state within a motor system, as a result of which there is usually a loss of thrust. |
Ambient pollution
Air pollutants, noise, vibration, light, radiation and similar environmental effects acting on persons or objects. |
Ammonia
Ammonia and ammonium salts were known to the Ancient Egyptians and the medieval Arab world. Ammonia is a chemical compound consisting of nitrogen and hydrogen. This basic chemical is industrially produced from these elements. The process employed for this was invented by the Germans Fritz Haber and Carl Bosch in ca. 1910. The Haber-Bosch process for the production of ammonia had a major impact on the chemical industry, as the resultant ammonia is used for the production primarily of fertilizers as well as in plastics production. Today there are several processes for the production of ammonia. From 1925 to 1928, Friedrich Uhde developed his own production process and thus laid the foundations for today's Uhde GmbH. |
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Basic engineering
This is the first phase in the process design of an industrial or chemical plant, for instance. During basic engineering, the process steps and the components required for them (e.g., reactors, distillation columns, heat exchangers and compressors) are defined and functionally arranged. Basic engineering precedes detail engineering. |
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| C |
Camshaft
The camshaft is a key component of the engine control system. It controls valve lift and permits closure of the valve springs. |
CO2 equivalent
Quantity describing the effect of greenhouse gas emissions on global warming. A factor known as the global warming potential expresses the greenhouse effect of various gases in terms of CO2 (reference gas). |
CODAG
COmbined Diesel And Gas turbine, marine propulsion system. |
Corvette
Small warship, larger than a patrol craft and smaller than a frigate. |
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| D |
Detail engineering
Detail engineering is the design phase following basic engineering in which the various components such as heat exchangers, compressors, etc. of an industrial or chemical plant are fully specified for the purchase order and subsequent manufacture. This includes, for instance, the detailed design of the above- and below-ground structures. |
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| E |
EFT (End Function Test)
This checks the mechanical integrity of an internal combustion engine by measuring and evaluating such parameters as torque, oil pressure, oil temperature, intake vacuum, etc. An EFT can entail further test operations, e.g. ignition system test, common rail test, cable harness test, etc. |
Electrolysis
Electrolysis refers to the separation of chemically bonded elements by exposing them to electrical current. In chloralkali electrolysis, the key basic chemicals of chlorine, hydrogen and caustic soda are generated from sodium chloride (common salt) and water. |
Emissions
Emissions refer to air pollutants, noise, vibration, light, heat, radiation and similar environmental effects given off by an industrial plant. |
EPAS systems
EPAS (Electric Power Assisted Steering) systems are electromechanical power steering systems in which an electronically controlled electric motor replaces the conventional hydraulic system. |
Extraction
Extraction is a physical method for separating substances in which a component is released from a solid or liquid substance mixture with the aid of an extraction agent, e.g. a solvent. The substance is extracted from the mixture because it dissolves better in the solvent. Extraction takes place during the familiar task of brewing tea or coffee. |
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Frigate
Medium-size warship with specialized combat duties. |
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| G |
GMP
Good Manufacturing Practice or GMP comprises guidelines for assuring the quality of production processes and the production environment during the production of, for example, pharmaceuticals and foods. A GMP-driven quality management system upholds product quality and satisfies the health authorities' requirements which are obligatory for marketing. |
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| H |
Hovering rig
This comprises the mechanical subassemblies of the magnetic undercarriage that receives and passes on the load, guidance, propulsion, and braking forces. |
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| K |
Kn
Knot, unit of measurement of a ship's speed. |
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| L |
Long stator
The track-integrated subassembly of the Transrapid propulsion system, consisting of stator packs, stator pack fasteners, long-stator winding (also known as the motor winding) and the associated ground. |
LSTK (Lump Sum Turnkey)
Turnkey construction of a complex (e.g., a chemical plant) for a fixed price. |
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| M |
Magnetic undercarriage
This describes the totality of the subassemblies attached to the underside of the Transrapid. These subassemblies are responsible for the load-bearing, guidance, propulsion, and braking functions. |
MCM
Mine Counter Measure. |
MEKO®
Multipurpose combination, modular shipbuilding principle with interchangeable components. |
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| N |
| O |
On-board control
This is performed by a subassembly that distributes the safety-relevant control and monitoring signals between the control/instrumentation equipment and the vehicle groups of the Transrapid. |
OPV
Offshore Patrol Vessel |
Overspray
Proportion of atomized paint that misses the workpiece during the painting process and enters the ambient air. |
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Polyester
The group of polyesters, e.g., PET and PBT, serve as the basic material for a variety of plastic products, such as fibers, sheets, films, bottles and other moldings. |
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| Q |
Quality Function Deployment (QFD)
Customer-oriented product development. |
Quality Operating System (QOS)
This describes a continuous improvement process. A central element of this is that employees know and perform their tasks and review and improve their performance. |
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| R |
Reaction plan
This specifies the action to be taken in accordance with the control plan when nonconforming product or unstable processes are identified. |
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| S |
SAT (Sensor Actuator Test)
Electrical test of sensors and actuators. |
Semifinished products or semis
Concept used by TK Krause Materials Management for discrete materials (products) used as initial materials in production. |
Steering spindle
Steering spindles are the torque-transmitting inner train of a steering column. ThyssenKrupp Technologies produces a wide range of different steering spindles. There are designs with steering column lock, friction clutch and vibration damper element and telescopic versions. |
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| T |
Three-step process
This is the stator section switching process with three line cable systems on the Transrapid. The stator sections, which are arranged separately on the left and right and mutually offset, are fed independently of each other and without a switchover interval. |
Tray
Load storage element in an automated warehouse. |
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| W |
Wearing part
Mechanical parts that come into contact with the workpiece and, owing to their production characteristics and stressing in service, undergo multiple scheduled replacement during the unit's planned service life. |
World-scale plant
Large production installations permitting production on a world scale. The more that is produced in such an installation, the lower the fixed costs per ton of product (economies of scale). |
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