This is the eighth quarterly technical progress report for a program in which the objective is to evolve and define an accessory drive system that will minimize system power consumption of driven accessories on an internal combustion engine in a passenger automobile. The initial program phases established concept feasibility, determined potential fuel savings, and selected a drive system design for concept mechanization. The current Phase IV carries the program through prototype fabrication and bench, engine, and vehicle tests. The final program objective is a detail drive system design and a demonstrated overall vehicle fuel savings potential. The major technical accomplishments during this reporting period were: the test vehicle was successfully driven to and from Ann Arbor, Michigan from Phoenix with the drive system installed; accessory drive hardware was calibrated, disassembled and reviewed for wear after round trip from Phoenix to Ann Arbor, Michigan; MADS governor performance was analyzed and parameters were varied to demonstrate flexibility available in modifying accessory drive input/output characteristics; and a task list that matched smaller, lower cost accessory components, with the accessory drive equipped vehicle, was prepared. Major emphasis during the remainder of the program will be in this area. (LCL)

Progress in setting up a remote data entry system for monitoring and recording electric power usage in selected commercial buildings in California is reported. This monitoring presents the 5 and 15-min KWH demand totals for each building or of the entire system. The data will be used to analyze the energy conservation potential and socio-economic impacts of electric power load-leveling strategies. (LCL)

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To demonstrate the enhancement of heat transfer in OTEC exchangers by means of fine, axial flutes on the heat transfer surfaces, experiments have been performed on single internally or externally fluted tubes of 1-inch diameter. Internal flutes provide water-side enhancement of both heat transfer and friction to about the same extent. At moderate water velocities heat transfer coefficients and friction factors are greater than those of the comparable smooth tube by a multiplying factor about equal to the fluted-to-smooth surface area ratio. Area ratios from 1.0 to 1.5 have been tested using two styles of flutes. Flute heights have ranged from 3 to 35 mils, tube lengths from 2 to 8 ft. Heat transfer experiments have been performed on Freon-11 moving in a thin layer under gravity down the outer surface of a smooth tube and of a tube having 26-mil external, axial flutes. Test lengths have averaged 4-/sup 1///sub 2/ ft. Enhancement of the local coefficient by 3 to 5 times has been observed during both evaporation and condensation. The effectiveness of the flutes is greatest in the range of laminar-turbulent transition.

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This report addresses a biphase turbine bottoming cycle for a diesel engine.

This report describes a successful test performed to determine the capabilities of a unique metal- cutting tool called the arc saw. The test was sponsored by the Contaminated Equipment Volume Reduction (CEVR) program being conducted for the Energy Research and Development Administraction by the Atlantic Richfield Hanford Company.