tailieunhanh - Material Science_ Vol 2 of 2 - US DOE (1993) WW part 3

Tham khảo tài liệu 'material science_ vol 2 of 2 - us doe (1993) ww part 3', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Thermal Shock DOE-HDBK-1017 2-93 OBJECTIVES TERMINAL OBJECTIVE Without references DESCRIBE the importance of minimizing thermal shock stress . ENABLING OBJECTIVES IDENTIFY the two stresses that are the result of thermal shock stress to plant materials. STATE the two causes of thermal shock. Given the material s coefficient of Linear Therma 1 Expansion CALCULATE the thermal shock stress on a material using Hooke s Law. DESCRIBE why thermal shock is a major concern in reactor systems when rapidly heating or cooling a thick-walled vessel. LIST the three operational limits that are specifically intended to reduce the severity of thermal shock. DEFINE the term pressurized thermal shock. STATE how the pressure in a closed system effects the severity of thermal shock. LIST the four plant transients that have the greatest potential for causing thermal shock. STATE the three locations in a reactor system that are of primary concern for thermal shock. Rev. 0 Page v MS-03 DOE-HDBK-1017 2-93 Thermal Shock Intentionally Left Blank. MS-03 Page vi Rev. 0 Thermal Shock DOE-HDBK-1017 2-93 THERMAL STRESS THERMAL STRESS Thermal stresses arise in materials when they are heated or cooled. Thermal stresses effect the operation of facilities both because of the large components subject to stress and because they are effected by the way in which the plant is operated. This chapter describes the concerns associated with thermal stress. EO IDENTIFY the two stresses that are the result of thermal shock stress to plant materials. EO STATE the two causes of thermal stresses. EO Given the material s coefficient of Linear Thermal Expansion CALCULATE the thermal stress on a material using Hooke s Law. EO DESCRIBE why thermal stress is a major concern in reactor systems when rapidly heating or cooling a thick-walled vessel. EO LIST the three operational limits that are specifically intended to reduce the severity of thermal shock. Thermal