The Argonne National Laboratories, contracted with Arthur D. Little, Inc. (ADL), to perform a 6 week goal study for the purpose of evaluating the technical applicability and the economic viability of the compound parabolic concentrator (CPC) concept for all solar energy applications except large central power plants. During this period, we studied the use of CPC units in a large number of residential, industrial, and commercial applications. The predicted performance of CPC augmented solar collectors was compared with other available solar collectors. Application of the CPC to on-site power generation using solar Rankine power generation techniques was studied in detail. Techniques and costs for fabricating CPC collectors were studied. Collectors with insulation and with full-surface reflectors were studied along with the use of CPC augmentation for evacuated receivers with selective surfaces. Manufacturing costs are compared with those reported by others. A qualitative comparison was made between the various classes of solar collectors that are either presently available or are expected to become available in the near future. Comparative energy costs for various collectors are discussed based upon the predicted performance and the estimated costs for manufacture. The problems of introducing the CPC, or other advanced technology type of solar collectors, …

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The purpose of these tests was to validate the integrity of the Navy Heat Source after imposing conditions which might, in the extreme, be encountered singly or serially so that safety would be assured.

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General features of a vapor-droplet flow are discussed and the equations expressing the conservation of mass, momentum, and energy for the vapor, liquid, and mixture using the control volume approach are derived. The phenomenological laws describing the exchange of mass, momentum, and energy between phases are also reviewed. The results have application to development of water-dominated geothermal resources. (auth)

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The injection of frozen ammonia droplets in the Baseball II magnetic confinement system is discussed. Two ways to correct for random particle trajectories are described: (1) design non-turbulent orifices, and (2) design a trajectory correction system. (MOW)

A matrix scheme for evaluating complex tactical nuclear systems is proposed. Advantages resulting from consideration of system characteristics in peace and crisis as well as war include avoidance of scenario-dependent conclusions, ease of maintaining awareness of relationships between immediate concerns and the complex whole, and highlighting of areas or concerns that have been overlooked or neglected. (auth)

Mound Laboratory, Miamisburg, Ohio is operated by Monsanto Research Corporation and is responsible to the Albuquerque Operations Office. It is an integrated production and laboratory facility which performs production and process development for weapons programs and conducts research and development for several other ERDA programs. Its missions are directed toward explosives and nuclear technologies. Total authorized plant and equipment is valued at $105.3 million. Gross operating funds for FY 1975 are estimated at $42.5 million. FY 1975 employment at midyear was 1,699. This paper provides an overview of the staff and technical qualifications, and technical capabilities of the Mound Laboratory.

The influence of radioactivity on the behavior of aerosol particles is a subject of potential importance to scientists attempting to predict aerosol concentration levels in containments following postulated nuclear reactor accidents. The purpose of this report is twofold: (1) to postulate, in a general manner, possible physical mechanisms resulting from a particle's radioactivity which may influence its transport, deposition, agglomeration and possible resuspension in accident situations, and (2) to present order of magnitude calculations which demonstrate the importance of each mechanism in aerosol behavior predictions. The influencing mechanisms have been divided into three categories: internal heat generation, momentum exchange effects, and electrical charging effects. Aside from one possible mechanism due to electrical charging effects, each of the physical schemes presented as exerting possible influences on the behavior of aerosol particles in postulated accident situations have been found to be negligible. It is felt that localized ''hot spots'' within nonconductive dust layers or agglomerates may, in fact, lead to particle ejections. The scheme requires verification that, indeed, localized ''hot spots'' do exist in the dust layer and that the particles in the ''hot spots'' retain their charge for a sufficient length of time for the coulombic forces to overcome the London-Van …