Evaluation of the HFBR fuel shipping cask versus requirements of ERDAM 0529. Informal report

The HFBR Spent Fuel Shipping Cask as modified for shipping longer fuel elements is described in detail and evaluated against ERDAM 0529 standards for packaging; structural integrity under uniform loading or external pressure; criticality; normal transport conditions; hypothetical accident conditions; quality assurance; and operating procedures. (LCL

Direct efficiency measurement and characterization of residential heating equipment. Annual report, fiscal year 1979

Preliminary characterization results for hydronic (hot water) oil-fired systems are presented along with the results of other work conducted to fulfill commitments made under an earlier phase of the project. The first results from the fully operational warm air furnace test facility are included with a brief description of the equipment and the technique used in measuring furnace efficiencies. The laboratory data are then used to determine annual fuel consumption and fuel-weighted seasonal efficiency for each heating unit based on typical operating parameters (size of residence, geographic location, and usage). The results of the study include the evaluation of a wide range of hydronic burner-boiler systems. The combination of direct, accurate efficiency measurement and calculation of annual fuel use provides a standard method for comparison of individual heating units and retrofit modifications on a common and realistic basis

Inventaire préliminaire de la faune lombricienne dans la Réserve et Domaine de Chasse de Bombo-Lumene, plateaux Batéké (République Démocratique du Congo)

Preliminary Inventory of the Earthworm Fauna in the "Réserve et Domaine de chasse" of Bombo-Lumene Batéké Plateau (Democratic Republic of the Congo). The soil macrofauna is frequently cited for its important role in the physicochemical parameters of cultivated land. Moreover, the tillage frequency and the cropping intensity are key factors to be considered in the management of cropping systems. An inventory related to the changes in land use on the earthworm fauna was carried out. The diversity and the abundance of the harvested species were determined in savannah and in forest ecosystems. The study was conducted in the "Réserve et Domaine de chasse" of Bombo-Lumene located on Batéké Plateau in the Democratic Republic of the Congo. Six types of environments have been prospected: semi-deciduous dense forests, gallery forests, second-growth forests, grasslands, woodland savannas, and crop land. Collected earthworm species are presented according to their habitat, their feeding habit, the kind of prostomium, and their geographical distribution

Preliminary inventory of the earthworm fauna in the "Réserve et Domaine de chasse" of Bombo-Lumene Batéké Plateaus, Democratic Republic of the Congo

La macro faune du sol est régulièrement mise en avant pour son rôle sur les caractéristiques physiques et chimiques du sol, notamment des terres cultivées. De plus, la fréquence du travail du sol et l'intensité de l'exploitation culturale sont des facteurs importants à prendre en compte dans la gestion des sols agricoles. Le présent inventaire vise à étudier l'impact du changement d'usage des sols sur la faune lombricienne. Il présente la diversité et l'abondance des espèces de lombriciens dans des écosystèmes savanicoles et forestiers de la Réserve et Domaine de Chasse de Bombo-Lumene des plateaux Batéké en République Démocratique du Congo. A cet effet, six types d'environnements ont été explorés: les forêts denses semi-décidues, les galeries forestières, les recrûs forestiers, les savanes herbeuses, les savanes arborescentes, et les cultures. Les espèces lombriciennes récoltées sont présentées en fonction du biotope, du régime alimentaire, du type de prostomium et de la distribution géographique

Incidence de la déforestation sur les catégories écologiques des vers de terre dans le "Domaine et Réserve de Chasse" de Bombo-Lumene (Kinshasa)

Impact of deforestation on ecological categories of earthworms in the "Domaine et Réserve de Chasse" of Bombo-Lumene (Kinshasa). Earthworms improve soil productivity and contribute to sustainable functioning of all ecosystems where they can be found. The effect of different levels of degradation of the forest cover on the abundance and species diversity of earthworm populations was evaluated in the "domaine et réserve de chasse" of Bombo-Lumene. The results show a decrease in the average biomass of all ecological categories of earthworms with increasing degradation of forest cover. This degradation is also accompanied by a decrease of the relative frequency of epigeic earthworm populations of the investigated sites. Relations between earthworm fauna and soil fertility are discussed, particularly in the perspective of development of agroforestry systems

URANIUM-BISMUTH IN-PILE CORROSION TEST LOOP. RADIATION LOOP NO. 1

A loop was operated in the Brookhaven Graphite Research Reactor to determine the effect of in-pile irradiation on the corrosion of various materials by a U-- Bi solution. The loop wws fabricated of 21/4% chrome-1% Mo steel and contained, in the in-pile section, specimens of low-chrome steels, C steel, Mo, Be, Ta, and graphite. The U--Bi solution containing 869 ppm U/sup 235/ 98 ppm U/ sup 238/, 236 ppm Zr, and 346 ppm Mg was circulated at 51/4 gpm. A temperature difference of 75 deg C was maintained on the loop. The in-pile test section ran at 500 deg C and the finned cooler section at 425 deg C. The in-pile test section was exposed to a neutron flux of 4.4 x 10/sup 12/ neutrons/cm/sup 2/-sec which provided a fission density of 5.5 x 10/sup 10/ fissions/cm/sup 3/-sec. Metallographic examination indicated that the corrosion and/or erosion of the steel and graphite specimens was nil. Wetting of the specimens by the U-Bi solution was limited. Results indicate that in-pile and out-of-pile experimental results are similar and that fission fragment recoils did not contribute materially to either wetting or corrosion under the conditions imposed in this test. (auth

Brookhaven National Laboratory Reports

Report issued by the Brookhaven National Laboratory discussing uranium-bismuth corrosion test loops. Design, construction, and operation of the test loops are presented. This report includes tables, illustrations, and photographs