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العنوان
Minimization of refrigeration losses in superconducting energy storage magnets/
الناشر
Omar Abd El-Rahman Okasha,
المؤلف
Okasha, Omar Abd El-Rahman.
هيئة الاعداد
باحث / عمر عبد الرحمن عكاشه
مشرف / M. E. Zein El-Din
الموضوع
Energy storage magnets.
تاريخ النشر
1978 .
عدد الصفحات
110 p.:
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الهندسة (متفرقات)
تاريخ الإجازة
1/1/1978
مكان الإجازة
جامعة الاسكندريه - كلية الهندسة - الهندسة النووية
الفهرس
Only 14 pages are availabe for public view

from 16

from 16

Abstract

In a superconductive energy storage system, large amounts of electrical energy would be stored in the magnetic field of a large superconductive inductor. Such a system would store energy during periods of low demand, at night, in which excess generator capacity is available. The stored energy could then be delivered to the power system during periods of peak demand in daytime.
Superconducting magnets in some cases require the extensive use of mechanical structs to the low temperature region (magnet) on one end while the other end of the struts rests on room temperature frames, One such extreme example occurs in the design of superconductive solenoids for use as enezgy storage magnets. In such magnets there will be
large radial and axial forces (IxB forces). Since, the cost of a cold structure would be excessiveb.4), it is necessary to support ouch solenoids in bedrock (which is cost free except for minor excavation charges) by means of epoxy—fiberglass struts. The heat leak through these supports (struts) is a major portion of the heat load. It is required that these aappox-tw have low thermal conduati¬vity as well as high strength. Fiberglass has a high strength to conductivity ratio and is less expensive than other materials with high ratios. Fiberglass was, thers¬fore, chosen for the support material.