By Joseph M. Hendrie (auth.), Pamela L. Lassahn, Debu Majumdar, George F. Brockett (eds.)
Over the final 30 years, reactor security expertise has advanced now not quite a bit from a necessity to get over injuries or incidents, yet essentially from many teams within the nuclear group asking hypo thetical, looking (what if) ~uestions. This ~uestioning has certainly paid off in developing preventive measures for lots of sorts of occasions and strength injuries. stipulations, akin to reactivity tours, huge holiday, lack of coolant, center soften, and comprise ment integrity loss, to call a number of, have been all at one time issues of protracted discussions on hypothesized occasions. traditionally, a lot of those became multiyear, large-scale examine courses aimed toward resolving the "what ifs. " For the subject of expected and irregular plant transients, how ever, the looking ~uestions and the study weren't so prolific till the mid-1970s. at the moment, probabilistic probability methodolo gies started to let us know we should always swap our emphasis in reactor protection examine and improvement and concentration extra on small pipe breaks and plant transients. 3 Mile Island punctuated that message in 1979. The plant temporary subject region is a multidisciplinary topic regarding not just the nuclear, fluid move, and warmth move applied sciences, but in addition the synergistics of those with the reactor keep an eye on platforms, the protection s;,"stems, operator activities, upkeep or even administration and the commercial concerns of a given plant.
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Additional info for Anticipated and Abnormal Plant Transients in Light Water Reactors: Volume 1
Such cases provide one of the highest tests of managerial perception and capabilities. The options are (l) juggle existing resources and priorities to provide the needed action; or (2) provide a convincing story to chief executives -- and sometimes boards of directors -- why a budget exception may be prudent; (3) in some cases, limitations on resources are such that even added budget is not sufficient. In such cases, implementation must be delayed by a year or more, and an interim ''patch" is often advisable and practical.
14 OPPORTUNITIES FOR PRACTICAL IMPROVEMENTS IN THE MANAGEMENT OF PLANT TRANSIENTS(OPENING ADDRESS) Edwin L. Zebroski INPO; (currently at EPRI) Palo Alto, California INTRODUCTION There have been many meetings and publications on the data and analysis of transients. There have been few meetings and fewer publications on the combination of activities which are involved in improving our ability to recognize, diagnose, and manage safe and undamaging responses to transients. This conference brings together most of the activities involved.
Plant upsets are bound to occur, although not at the excessive rate that seems to be American standard practice. Since one of the principles of banquet speaking is to discover the obvious, I will point out that from a risk standpoint it is quite as good to diminish the rate of challenge to plant safety systems as it is to increase the likelihood of successfully meeting those challenges. I have been looking at some numbers for reactor trips that suggest 1983 is going to be a banner year for challenges to reactor protection systems.
Anticipated and Abnormal Plant Transients in Light Water Reactors: Volume 1 by Joseph M. Hendrie (auth.), Pamela L. Lassahn, Debu Majumdar, George F. Brockett (eds.)