For a boiling process such as shown in Figure 1.5c, the ambient temperature T in Newtons law of cooling is replaced by the saturation temperature of the fluid Tsat. Consider a situation where the heat flux from the hot plate is q 20 105 W/m2 . If the fluid is water at atmospheric pressure and the convection heat transfer coefficient is hw 20 103 W/m2 K, determine the upper surface temperature of the plate, Ts,w. In an effort to minimize the surface temperature, a technician proposes replacing the water with a dielectric fluid whose saturation temperature is Tsat,d 52 C. If the heat transfer coefficient associated with the dielectric fluid is hd 3 103 W/m2 K, will the technicians plan work?
IT 100 (10/410/6) A. Storage & Databases a. Primary Storage (temporary storage)loses content when computer loses power. i. Volatile Storage ii. Temporary iii. Refers to random access memory (RAM) b. Secondary Storage (permanent storage) permanently saves info for future use. i. Nonvolatile storage stores programs & data as opposed to temporary RAM. ii. Characteristics 1. Media or medium what holds data 2. Capacity amount of storage held 3. Storage devices hardware that reads data 4. Access speed measures amount