Hetrick david l (9 risultati)

Condizione: Very Good. Pages intact with possible writing/highlighting. Binding strong with minor wear. Dust jackets/supplements may not be included. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

Hardcover. Condizione: Acceptable. No dust jacket. Some water damage is present near the spine. The page edge is tanned. The copy shows minor external wear, but is otherwise in clean condition.

Condizione: good. May show signs of wear, highlighting, writing, and previous use. This item may be a former library book with typical markings. No guarantee on products that contain supplements Your satisfaction is 100% guaranteed. Twenty-five year bookseller with shipments to over fifty million happy customers.…

hardcover. Condizione: Good. Ships in a BOX from Central Missouri! May not include working access code. Will not include dust jacket. Has used sticker(s) and some writing or highlighting. UPS shipping for most packages, (Priority Mail for AK/HI/APO/PO Boxes).

Encuadernación de tapa dura. Condizione: Bien. Condizione sovraccoperta: Bien.

Condizione: good. May show signs of wear, highlighting, writing, and previous use. This item may be a former library book with typical markings. No guarantee on products that contain supplements Your satisfaction is 100% guaranteed. Twenty-five year bookseller with shipments to over fifty million happy customers.…

hardcover. Condizione: Acceptable. Acceptable. Dust Jacket NOT present. CD WILL BE MISSING. SHIPS FROM MULTIPLE LOCATIONS. book.

Hardcover. Condizione: Good. Good. Dust Jacket NOT present. CD WILL BE MISSING. . SHIPS FROM MULTIPLE LOCATIONS. book.

Hardcover. Condizione: Very good. Condizione sovraccoperta: Good. Presumed First Edition, First printing. x, 542 pages. Formulae, Figures. Tabular Data. Bibliography. Author Index. Subject Index. Black mark on bottom edge. Bridging the gap between the view of the reactor physicist and that of the control engineer, this text gives particular attention to lumped- parameter dynamic equations, or the point-reactor model, though careful attention is paid to the derivation of this model from neutron diffusion and transport theory. The reader is brought up to date in the field of space-dependent effects, and the dynamics of large reactors, pulsed neutron techniques, and a brief introduction to neutron waves are included as examples. Dr. David Leroy Hetrick was the Distinguished Professor of Nuclear Engineering at the University of Arizona. He was born on January 26, 1927, in Scranton, Pennsylvania. He received his Bachelor's and Master's degrees in physics from Rensselaer Polytechnic Institute and his Ph.D. in theoretical physics from the University of California at Los Angeles. His definitive textbook, Dynamics of Nuclear Reactors, was published in 1971. He served for 28 years as an administrative judge for the United States Nuclear Regulatory Commission and as a consultant in nuclear reactor dynamics and reactor safety. He retired from the University of Arizona in 1992. He will be remembered for his dedication, his service, and his ethics and integrity. This is a nuclear reactor dynamics textbook suitable for undergraduate seniors and graduate students in science and engineering. The topic of reactor dynamics, particularly in the form necessary to understand the computation that occurs both in control system analysis and safety analysis, was treated only incompletely in previous texts and is given complete attention here. One of the book's important features is that it bridges the gap between the viewpoints of the reactor physicist and the control engineer. It brings them together in such a way that the reader will be able to communicate in the language of either persuasion, and more importantly, communicate between them. A nuclear reactor is a device used to sustain a controlled fission nuclear chain reaction. They are used for commercial electricity, marine propulsion, weapons production and research. Fissile nuclei (primarily uranium-235 or plutonium-239) absorb single neutrons and split, releasing energy and multiple neutrons, which can induce further fission. Reactors stabilize this, regulating neutron absorbers and moderators in the core. Fuel efficiency is exceptionally high; low-enriched uranium is 120,000 times more energy-dense than coal. Heat from nuclear fission is passed to a working fluid coolant. In commercial reactors, this drives turbines and electrical generator shafts. Some reactors are used for district heating, and isotope production for medical and industrial use. After the discovery of fission in 1938, many countries launched military nuclear research programs. Early subcritical experiments probed neutronics. In 1942, the first artificial[note 1] critical nuclear reactor, Chicago Pile-1, was built by the Metallurgical Laboratory. From 1944, for weapons production, the first large-scale reactors were operated at the Hanford Site. The pressurized water reactor design, used in about 70% of commercial reactors, was developed for US Navy submarine propulsion, beginning with S1W in 1953. In 1954, nuclear electricity production began with the Soviet Obninsk plant. Spent fuel can be reprocessed, reducing nuclear waste and recovering reactor-usable fuel. This also poses a proliferation risk via production of plutonium and tritium for nuclear weapons. Reactor accidents have been caused by combinations of design and operator failure. The 1979 Three Mile Island accident, at INES Level 5, and the 1986 Chernobyl disaster and 2011 Fukushima disaster, both at Level 7, all had major effects on the nuclear industry and anti-nuclear movement. As of 2025, there are 417 commercial reactors, 226 research reactors, and over 200 marine propulsion reactors in operation globally. Commercial reactors provide 9% of the global electricity supply, compared to 30% from renewables, together comprising low-carbon electricity. Almost 90% of this comes from pressurized and boiling water reactors. Other designs include gas-cooled, fast-spectrum, breeder, heavy-water, molten-salt, and small modular; each optimizes safety, efficiency, cost, fuel type, enrichment, and burnup.…