This talks about the Chemical Engineering Division thermochemical studies semiannual report

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Results of the heat exchanger tests conducted on a scale model of a heat exchanger that has been designed and fabricated for the Geothermal Test Facility show that this exchanger will lose 60% of its heat transfer capability and fall below design requirements after 92 hours of operation. When the test exchanger was clean and operating as close as possible to design conditions, its overall heat transfer coefficient was 426 BTU/hr-ft/sup 2/ - /sup 0/f. when calculating in the fouling factor of .0035 this gave a design coefficient of 171 BTU/hr-ft/sup 2/ - /sup 0/f which was reached after less than four days of steady state operation. Thermal shocking of the test heat exchanger once each hour while the exchanger was operating at design conditions had no effect on scale removal or heat transfer. Results of tube cleaning showed that chemical treatment with 30% hydrochloric acid followed by a high pressure water jet (6000 psig), was effective in removing scale from tubes contacted with geothermal brine. After cleaning, the tubes were examined and some pitting was observed throughout the length of one tube.

This report outlines a proposed temporary benefits increase for Social Security.

This report outlines major legislation concerning crime and criminal justice during the 92nd Congress.

This chronological survey is a history of developments in or affecting the international petroleum industry, with emphasis on relations between oil-producing and oil-processing companies, and the Middle East and North Africa.

This report is a bibliography of published materials concerning school finances from January to June of 1973.

This report is about fire research and safety and the present sate of the legislation.

This report is about the A National Materials Policy and resolving some of its selected issues.

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Document discussing Collingwood's Doctrine of Absolute Presupposition and theory of the nature of metaphysics.

Progress is reported for a program to demonstrate by 1976 an experimental gas turbine powered automobile which meets the 1976 Federal Emission Standards, has significantly improved fuel economy, and is competitive in performance, reliability, and potential manufacturing cost with the conventional piston engine powered, standard-size American automobile. Procurement delays have caused an additional one-month slippage in engine deliveries. All test cell conversion and preparation tasks are complete. Assembly, qualification, and delivery to NASA of Engine 3 were accomplished. Vehicle installation design tasks were completed. Vehicle structural modifications were completed. Initial operation of the first vehicle has slipped two weeks due to engine delivery schedule changes. The planned training activity for the NASA technician took place. Endurance activity has included continued testing of molded insulation and the start of testing of new coarse pitch regenerator drive gears. Testing of a variable geometry combustor for control schedule optimization started. The all-ceramic regenerator core program was formulated, and work started on design and fabrication or procurement of core, drive, and seal hardware required specifically for these cores. The integrated control system sub-contract is delayed pending resolution of the adjustments to the scope of work. An elasto-plastic stress analysis program is being written in …

Monthly newsletter of the High Plains Underground Water Conservation District No. 1, discussing the field of underground water. Topics include profiles of water conservation research, annual pre-plant soil moisture survey data, annual Winter Water Level measurement data, and information about the latest water conservation tips.

Magazine discussing natural resources, parks, hunting and fishing, and other information related to the outdoors in Texas.

Monthly newsletter of the Texas State Securities Board documenting authorization for the sale of securities in the state, listing the permit date, information about the company, and total offering for each one. It also includes other notices or updates about policy changes and the agency's activities.