By H.-G. Nüßer, A. Schmitt (auth.), U. Schumann (eds.)
This quantity comprises ten papers on air site visitors and the surroundings ready via invited specialists for a seminar equipped via the German Aerospace study institution (DLR) on November 15 and sixteen, 1990 in Bonn, Germany.
Read or Download Air Traffic and the Environment — Background, Tendencies and Potential Global Atmospheric Effects: Proceedings of a DLR International Colloquium, Bonn, Germany, November 15/16, 1990 PDF
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Extra resources for Air Traffic and the Environment — Background, Tendencies and Potential Global Atmospheric Effects: Proceedings of a DLR International Colloquium, Bonn, Germany, November 15/16, 1990
10 6 tce/a, makes a clear point: 185 • 106 tce/a are equivalent to just about two thirds of the end energy consumption of the FR Germany alonel A completely new hydrogen infrastructure would have to be implemented for the aviation industry, with support centers around the world similar to today's space centers in Cape Canaveral , USA or Kourou, French Guiana, or to the rocket test centers in Vernon, France or in Lampoldshausen, FR Germany (Figure 14), the last two being at present the largest European consumers of liquid hydrogen, using several 100m3 LHz per week.
In  a fair1y recent brief report about the NASP and its international competitors is given . -I - I VORTEX·POWERED GENERATOR Fig. 6 ! - 1~ 46' 6' -J . ut. PAYLOAO. LB. 185 Fr. AtTITUDE. Fig. LB. 000 ENouRANce . HRS. 8 Hydrogen-fueled Airbus (studies) Source : MBB-UT (1989) 28 Aerospace and hydrogen If in the aviation field it is only plans and proposals, or at best prototypes, which can be referred to, there is more to say about the space technology area: Space transportation is no longer conceivable without operational, high energy LH 2 ILOX engines .
The present and expected course of development of the turbine entry temperature and overall pressure ratio is shown in figure 13. As made clear in figure 14, the relationship between the two is thermodynamically justified, where their statistical development corresponds pretty well to the technical and economic optimum in that in forsaking the aerodynamically and technically difficult attainment of the pressure ratio most favourable as far as fuel consumption is concerned , somewhat lower pressure ratios are selected at the expense of somewnat higher specific fuel consumption.