Basis, definition, and determination of the LOFT primary system minor primary pressurization cycle are presented. Example pressure-time plots are given which illustrate recognition of the minor primary pressurization cycle during typical plant operations.

The data processing guide provides information on the availability and use of computer facilities for Environmental Sciences Division (ESD) personnel. This guide addresses recent data processing developments in ESD, little-known capabilities for handling data and using programs, and illustrates the mechanics of these developments and capabilities. Some of the specific developments are: storing data or source code on tape or disk for insertion into a computer job stream, creating a DECSYSTEM10 file from punched paper tape, data storage and input using a computer terminal with cassette tapes, and generation of microfiche output.

The development of a research program to study coatings for control of impurities originating from the first wall of a Tokamak reactor is extensively discussed. The first wall environment and sputtering, temperature, surface chemical, and bulk radiation damage effects are reviewed. Candidate materials and application techniques are discussed. The philosophy and flow chart of a recommended coating development plan are presented and discussed. Projected impacts of the proposed plan include benefits to other aspects of confinement experiments. A list of 45 references is appended. (RME)

Three massive hydraulic fracture experiments for natural gas stimulation were conducted by Halliburton for AMOCO in the Wattenberg field northeast of Denver, Colorado. The experiments were conducted on three wells--Martin Hart ''E'' No. 1, Salazar G.U. No. 1, and UPRR-22P. All three wells were open hole and the fracture zone was located at a depth of approximately 8000 ft. All were treated with approximately 300,000 gal of fluid and 600,000 lb of proppant. The surface electrical potential technique was used to attempt characterization and mapping of the fracture. The noise perturbating the system consists of telluric currents, currents from industrial sources, and natural local currents. It is difficult to determine the exact signal-to-noise ratio or the exact origin of the noise without exhaustive field measurements and data analysis. However, improvements have been made in the surface potential gradient technique since the early developmental stage of the diagnostic program. To aid in the interpretation of the field data, mathematical modeling efforts have been undertaken. The model utilizes the Green's function integral equation approach where the so-called half-space Green's function is used. The model calculates the potential difference that exists at the surface as a function of fracturing conditions. Data analysis indicates …

Rain simulation systems have been designed for field and greenhouse studies which have the capability of reproducing the physical and chemical characteristics of natural rainfall. The systems permit the simulation of variations in rainfall and droplet size similar to that of natural precipitation. The systems are completely automatic and programmable, allowing unattended operation for periods of up to one week, and have been used to expose not only vegetation but also soils and engineering materials, making them versatile tools for studies involving simulated precipitation.

This report is an expansion of the basic information given in the Fortune 500 listing for 1975 as published in the May 1977 issue of Fortune magazine.

This quarterly report is the fifth in a series intended to provide information on research and engineering activities being performed to improve the processing of irradiated reactor fuels, the production of plutonium, and the management of resultant chemical wastes.

The Solar Total Energy System will operate as follows: A heat transfer fluid (Therminol 66) is heated in the receiver tubes of the solar collectors by reflected and focused solar radiation. This fluid is pumped to the high-temperature storage subsystem. Fluid is extracted from this storage on a demand basis and pumped to the heat exchanger which produces superheated toluene vapor to power the turbine/generator. The boiler can also be operated from a fossil fuel-fired heater to insure continuity of operation during extended cloudy periods. Turbine condenser coolant is pumped to the low-temperature storage tank and becomes the energy source for heating and air-conditioning components of the system. Progress is reported on the design, fabrication, installation, and checkout of the first 200 m/sup 2/ collector field quadrant, a high-temperature stratified storage tank, a 32-kW turbine/generator and Therminol-to-toluene heat exchanger, an instrumentation and control subsystem, a cooling tower, the turbine and control building, and all necessary pumps and fluid loops to interconnect these subsystems. Also, experience with operating the facility in accordance with a detailed test plan to provide performance data on all subsystems and to accumulate operating and maintenance experience which can provide a basis for the design of large-scale …

Condensation of a pure, saturated vapor onto a vertical, melting substrate is analyzed for both one- and two-material situations. Examination of the one-material situation indicates that the solution to the full transient condensation-induced melting problem may be approximated by using a transient, conduction-only model for short times and a steady-state, flowing-film model for long times. This concept is extrapolated to the two-material situation in order to obtain a simulation of the transient solution. The models are applied to the specific case of uranium dioxide condensing onto solid stainless steel. Condensate solidification occurs for this pair of materials; however, this solidification may be neglected without introducing a serious error in the other phase-change rates. The condensation heat flux for this pair of materials is a very weak function of the initial substrate temperature and the vapor temperature. The results of this analysis have applications in the area of LMFBR accident analysis.

Progress is summarized in the following study areas: accident energetics; core debris behavior; sodium containment and structural integrity; research for elevated temperature design criteria; fuel motion detection; and ACPR fuel motion detection system.

The purpose of this compilation is to present, in a central reference document, all of the individual annual reports summarizing the results of the environmental monitoring programs conducted at each of the Energy Research and Development Administration (ERDA) sites having a potential for environmental impact or which release a significant quantity of radioactivity or nonradioactive pollutants. Data on the levels of radioactivity and nonradioactive pollutants in effluents and the environs at each site are given, and effluent and environmental measurements and sampling results are evaluated in relation to the appropriate standards for environmental protection, including estimates of potential radiation exposures offsite. It is noteworthy that, in most cases, the potential offsite exposures are so low they cannot be determined by direct measurement methods but must be estimated by calculational techniques. All potential offsite exposures to members of the public from routine effluent releases in 1976 were less than 5 mrem/yr (i.e., less than one percent of the established radiation protection guidelines for exposure of the public). Additionally, the estimated collective man-rem dose potential to all members of the public within an 80 Km radius at all ERDA sites is less than .02 percent of the estimated man-rem dose due to …