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[en] The HTR was brought to technical maturity during the last 15 years: AVR-reactor plant is operating since 1968; coolant outlet-temperatures of 950 °C have been succesfully demonstrated for many years by AVR. Apart from little R+D-effort, HTRs for electrical power and process steam generation can be built. But the long term strategic importance of HTR will be the real high temperature area, the task to reduce Germany's dependency on imported primary energy, especially crude oil and natural gas by refining our own reserves of primary energy. Our resources of ''dirty'' primary energy, hard coal and lignite, have to be converted into clean secondary energy carriers, as synthetic natural gas (SNG), methanol and hydrogen. This conversion has to be done with minimum environmental pollution. Conventional autothermal technologies of coal conversion are polluting the atmosphere to a remarkable extent.
[en] This project was initiated in response to expressed requirements by a number of utilities for a method to guide the scoping of a cost-effective preventive maintenance program for power plants. A guide was prepared and workshops were held to present the model reflected in the guide for developing a PM program. The model includes the identification of critical equipment items to be considered, the establishment of potential scope and frequency with which PM activities should be performed on this equipment, and the presentation of methods to perform cost/benefit and program optimization analyses consistent with the utility's level of resource commitment to PM. The guide also indicates the manpower requirements for developing a PM program using the model by skill level and number. (author)