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Delil, A.A.M. (author), Woering, A.A. (author), Pohl, M. (author), Verlaat, B. (author), Boer Rookhuizen, H. (author), Perrin, E. (author), Battiston, R. (author)The Alpha Magnetic Spectrometer AMS-2, planned for a five years mission as attached payload on the International Space Station ISS, is an international experiment searching for anti-matter, dark matter, and missing matter. AMS-2, an improved version of AMS-1 flown on STS 91, consists of various particle detector systems, one of these being the ...report 2001
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Delil, A.A.M. (author)Paper presented at the 1st International Conference on Heat Transfer, Fluid Mechanics, and Thermodynamics, Kruger Park, South Africa, 8-10 April 2002.report 2001
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Delil, A.A.M. (author)The work described was done during a five months stay as visiting professor at the Institute of Space and Astronautical Science, in Sagamihara, Japan. The research concentrates on pulsating and oscillating heat transfer devices, being of interest for applications in spacecraft thermal control in microgravity, in planetary partial gravity and...report 2001
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Delil, A.A.M. (author)The rationale behind the CIMEX-3 experiment is explained. It is justified (supported by many references) why such an experiment shall be carried out, by discussing its historical background, its objectives and its preliminary configuration. It is shown that CIMEX-3 is not intended only as an experiment to get a better knowledge of the physics of...report 2000
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Delil, A.A.M. (author)Multiphase flow, the simultaneous flow of the different phases (states of matter) gas, liquid and solid, strongly depends on the level and direction of gravitation, since these influence the spatial distribution of the phases, having different densities. Many investigations concern behaviour of liquid-solid flows (e.g. in mixing, crystal growing...report 2000
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Delil, A.A.M. (author)Future (commercial) satellites will require accurate propellant gauging systems, in order to meet the end-of-life reorbiting requirement and the need for replacement planning. A capacitivc Gauging Sensor Unit is currently being developed for the Meteosat Second Generation spacecraft. Its measurement principle is based on the difference of the...report 1997
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Delil, A.A.M. (author)Capillary pumped two-phase systems are considered to be: - Prime candidates to provide efficient thermal management systems for future advanced spacecraft. - Promising candidates for the thermal control of advanced larger instruments (e.g. laser-based earth observation instruments) or microgravity experiments. In such capillary pumped two-phase...report 1996
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Delil, A.A.M. (author), Heemskerk, J.F. (author), Mastenbroek, O. (author), Pauw, A. (author), van Put, P.A.G. (author), Voeten, R.G.H.M. (author), Jacobs, R.H.M. (author), Muller, R. (author), Ebeling, W.D. (author), Beckmann, M.M. (author)Capillary pumped two-phase systems are considered to be: -Prime candidates to provide efficient thermal management systems for future advanced spacecraft. -Promising candidates for the thermal control of advanced larger instruments (e.g. laser-based earth observation instruments) or microgravity experiments. In such capillary pumped two-phase...report 1996
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Delil, A.A.M. (author), Heemskerk, J.F. (author), Mastenbroek, O. (author), Supper, W. (author)This paper describes all analytical and experimental activities (of NLR, prime contractor, and the subcontractors Bradford Engineering and Daimler Benz Aerospace-Space Infrastructure) to develop a high efficiency low pressure drop condenser and to bring it up to pre-qualifïcation level: - The inventory, dedicated to a literature review of...report 1996
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Delil, A.A.M. (author)Condensers are crucial components of two-phase heat transport systems envisaged for future large spacecraft. To properly design such condensers, one uses experimental data, obtained from ground testing and reduced gravity aircraft and rocket flight testing, plus results of thermal modelling and scaling calculations. A frequently reported result...report 1992
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Delil, A.A.M. (author), Heemskerk, J.F. (author)Two mechanically pumped two-phase test rigs were built at NLR in order to experimentally study critical issues of spacecraft two-phase thermal management systems: - a 5 kW, 31 mm ID, freon loop, focusing on the critical components of the ESA Two-Phase Heat Transport System. - a 30000 W, 4.93 mm ID, ammonia loop, to support the development of the...report 1990
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Vreeburg, J.P.B. (author), Krinkels, M.C.J.M. (author), Heemskerk, J.F. (author), Delil, A.A.M. (author)Acoustic techniques for the tracking of a tracer particle in a liquid have been detailed for a specific problem. The liquid is a molten metal in a crucible in a precision furnace; the tracer particle could be a bubble. The acoustic hardware is exterior to the furnace and is coupled to the sample via a small number of liquid-filled waveguides...report 1989
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Delil, A.A.M. (author), Heemskerk, J.F. (author)The monitoring of the quality of the two-phase mixture at various locations in the system is a valuable, possibly indispensable, part of the control system needed to properly operate a two-phase heat transport system for large spacecraft. Based on a trade-off of various quality monitoring concepts, NLR started to develop a dedicated quality...report 1988
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Delil, A.A.M. (author)Two-phase heat transport systems are currently considered for the thermal management of large power spacecraft. The monitoring of the quality of the two-phase mixture at various locations in the system is a valuable, possibly indispensable, part of the control system needed to properly operate such a two-phase loop. Concepts for quality...report 1988
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Delil, A.A.M. (author), Heemskerk, J.F. (author)This memorandum contains the original issue of the NLR contribution to ESA Columbus Resource Module Activities (Phase B2X Extended). The work has been carried out as subcontractor of Fokker Space & Systems with Dornier Systems and Aerospatiale as the element (prime) and cocontractors respectively.report 1988
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Delil, A.A.M. (author), Schmeitink, C.A. (author)This memorandum contains the original issues of the two NLR contributions to ESA Columbus Polar Platform (Phase B2) activities i.e. - COL-TN-PO-PF-TC-021: "ORU Thermal Control: Performance calculations & budget estimates". - COL-TN-PO-PF-TC-024: "ORU Thermal Control: Design and definition". The work has been carried out as subcontractor of...report 1987
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Delil, A.A.M. (author)A possible solution to handle the heat dissipated by the batteries of the Columbus Polar Platform is to equip each battery ORU (Orbital Replacement Unit) with a dedicated heat pipe radiator. Such a radiator, being stowed during launch, has to be deployed in orbit and might be chosen to be steerable to achieve maximum radiator performance, hence...report 1987
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Delil, A.A.M. (author)Two-phase flow heat transport systems for the Columbus Space Platform and the Space Station are expected to incorporate systems to control the liquid flow rates into evaporative cold plates. Candidate components for such a control system are sensors monitoring the (very high) mixture quality at the cold plate exit lines, control algorithms and...report 1987
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Delil, A.A.M. (author)Two-phase heat transport systems are currently considered for the thermal management of future large power spacecraft. The monitoring of the quality, being the relative vapour mass content, of the two-phase mixture at various locations in the system, is valuable - possibly indispensable - for the proper operation of such a system. This paper...report 1986
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Delil, A.A.M. (author)Different concepts for a moveable thermal joint are described and discussed with respect to the applicability in a dedicated deployable or steerable heat pipe radiator system to handle the waste heat of the NiH batteries of the Polar Platform. Concepts which are identified as possible candidates for near-term deployable radiator development are:...report 1986