40,255 research outputs found

    Project Tyneside Case Studies

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    RUSAP: A computer program for the calculation of Roll-Up Solar Array Performance characteristics

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    RUSAP is a FORTRAN 4 computer program designed to determine the performance characteristics (power-to-weight ratio, blanket tension, structural member section dimensions, and resonant frequencies) of large-area, roll-up solar arrays of the single-boom, tensioned-substrate design. The program includes the determination of the size and weight of the base structure supporting the boom and blanket and the determination of the blanket tension and deployable boom stiffness needed to achieve the minimum-weight design for a specified frequency for the first mode of vibration. A complete listing of the program, a description of the theoretical background, and all information necessary to use the program are provided

    A deployment mechanism for the double roll-out flexible solar array on the space telescope

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    A roll-out flexible array which provides more than 4 kW of power for the space telescope was developed. The Array is configured as two wings. The deployment mechanism for each wing is based on flight-proven FRUSA design. Modifications have been incorporated to accommodate an increase in size and mission requirements. The assembly and operation of the deployment mechanism are described together with environmental and functional tests results

    Active heat exchange system development for latent heat thermal energy storage

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    Various active heat exchange concepts were identified from among three generic categories: scrapers, agitators/vibrators and slurries. The more practical ones were given a more detailed technical evaluation and an economic comparison with a passive tube-shell design for a reference application (300 MW sub t storage for 6 hours). Two concepts were selected for hardware development: (1) a direct contact heat exchanger in which molten salt droplets are injected into a cooler counterflowing stream of liquid metal carrier fluid, and (2) a rotating drum scraper in which molten salt is sprayed onto the circumference of a rotating drum, which contains the fluid salt is sprayed onto the circumference of a rotating drum, which contains the fluid heat sink in an internal annulus near the surface. A fixed scraper blade removes the solidified salt from the surface which was nickel plated to decrease adhesion forces. In addition to improving performance by providing a nearly constant transfer rate during discharge, these active heat exchanger concepts were estimated to cost at least 25% less than the passive tube-shell design

    Розробка технології збагачення розсипних титанових руд в умовах ТОВ ВКФ «Велта»

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    Об’єктом дослідження є технологія збагачення розсипних ільменітових руд. Предметом досліджень є ільменітові руди розсипного родовища. Метою дипломної роботи є зменшення втрат ільменіту з відходами магнітного збагачення розсипних руд Берзулівського родовища в умовах ТОВ ВКФ «Велта». В дипломній роботі запропоновано оригінальне рішення, яке полягає у застосуванні високоградієнтної магнітної сепарації з попереднім розділенням їх живлення на класи крупності -0,8+0,25 та -0,25 мм. Перший клас збагачується на роликовому сепараторі зі стрічкою, а другий – на сепараторі відхиляючого типу. Таке рішення дозволило підвищити ефективність схеми збагачення в цілому

    Applications technology satellite gravity gradient stabilization system Quarterly progress report, 1 Nov. 1966 - 31 Jan. 1967

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    Gravity gradient stabilization system for applications technology satellit

    A guide to the production of High-Quality Cassava Peel® mash as a feed for livestock

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    17. Issues for Nuclear Power Plants Steam Generators

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