2consider airflow over a plate surface maintained at a temperature of 220°c. the temperature profile of the airflow is given as the airflow at 1 atm has a free stream velocity and temperature of 0.08 m/s and 20°c, respectively. determine the heat flux on the plate surface and the convection heat transfer coefficient of the airflow

Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature