Performance and Temperature Change Characteristics of a Film Heater Attached to Substrates for Satellite Applications

Effect of Temperature Coefficient of Electric Resistance on Thermal Performance of Film Heaters for Satellite Applications

“…In satellite applications, no convection occurs and thermal radiation exists at the surface. The thermal contact resistance due to the adhesive (R t,c ) was obtained from previous studies [11]. R t,c was 6.67 × 10 −3 m 2 •K/W when the film heater was attached to CFRP or 2.11 × 10 −4 m 2 •K/W when the film heater was attached to Al 6061.…”

“…Equation ( 10) represents Newton's law of cooling, where q denotes the heat-flux density. The convective heat transfer coefficient was defined as shown in Equation (11), where Nu denotes the Nusselt number, k represents the thermal conductivity of the fluid (air), andL represents the characteristic length, which corresponded with the length of the film heater (152.4 mm). For free convection over a vertical plate, the Nusselt number follows Equation ( 12) [17].…”

“…Schlitt et al [10] measured limiting the power density by increasing the power after attaching a film heater from Minco Co., Ltd. to CFRP and aluminum substrates. Choi et al [11] developed a simulation technique to analyze the heat transfer characteristics of film heaters attached to CFRP or Al 6061 and the power-density requirements for stable heater operation under vacuum conditions.…”