Papers by Keyword: Specific Area

Abstract: The incremental digital PID technology and pressure regulating technology are adopted for this thermostat. The results show that it can be better stabilize the temperature and can control the residuals between ±1 degrees Celsius. The experiment in transformation between solid and liquid of ice is designed on this basis. By changing the temperature and specific area, the law about melting time and rate between temperature and specific area is discussed and the proper empirical equations are obtained by using the MATLAB. Finally the result is that temperature and specific area can influence the process with power function relationship.

Abstract: Five kinds of carbon black filled natural rubber were prepared, and thermal conductivity was studied considering two factors, which include temperature and volume percent of the filler. It was found that thermal conductivity had relevance to temperature and volume percent of carbon black, besides, structure and specific area of carbon black were also very important influencing factors. Moreover, reuniting phenomenon of nanometer grade of carbon black has much effect on thermal conductivity.