Qualitätssicherung in der Produktentwicklung und Konstruktion

Review and evaluation of metal-hydride-based hydrogen sensors as safety devices for future sustainable aviation

“…These methods allow a holistic judgement to support the decision-making in case of various potential solutions. In addition, they enhance the plausibility and objectivity of the decision-making-process [35][36][37].…”

“…To be used in various stages of a development process, the evaluation method should not only be valid for quantitative criteria but also be suitable to rate qualitative criteria [36][37][38]. The general procedure of most such methods is illustrated in Figure 10 [35,36,38,39]. Each step of this procedure is covered in the following subchapters.…”

“…Before starting with the evaluation procedure, a group of people from different engineering fields should be consulted to ensure a wide range of expertise, especially when rating subjective, qualitative criteria. In addition, the solution options have to be provided in comparable development stages to counteract misevaluations caused by different degrees of detail [36].…”

Integrated Research as Key to the Development of a Sustainable Geothermal Energy Technology

“…[136] They need an uphole station with the wireline,w ireline handling, and ac ontrol cabin, and many similar downhole solutions, for example,f or the housing, heat management,a nd control of the probes.M any of the detailed solutions,s uch as seals,m ay vary only in diameter, or more generally in scalable parameters,b ut neitheri n the material nor in the fit tolerances.T his implies the idea of designing ac ommonp latform,s uch as ak it of reusable items for the constructiono fg eothermal borehole probes. ZWERG (which in English translatest o" dwarf") was designeda saframework for as ecure and straightforward designo fg eothermal probes.F ollowingt he idea of systematic designp ostulated by Pahl and Beitz, [137] the targeti ss orted into modules andp rimitivef unctions with well-definedi nterfaces ( Figure 36). In this analysis process,d ifferent solutions are workedo ut and suggested.M ost of the modules can be found in the ZWERG toolbox.…”

“…Figure 36. Systematic design analogous to that proposed by Pahl and Beitz: [137] analysis and synthetic process withthe use of the ZWERG toolbox. Fluid pressure and temperature enter into av ariety of geothermal production-operation calculations, including well drillinga nd completion, stimulation, controllingm ineral scaling, anda nalyzingp ressure-transient testd ata.…”