phân tích sự ảnh hưởng của việc góc mở sớm đóng muộn của xupap nạp và thải đến hiệu suất làm việc của động cơ

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.

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