An air-standard dual cycle has a compression ratio of 16. At the beginning of compression, p1 = 14.5 lbf/in.2, V1 = 0.6 ft3, and T1 = 500 °R. The pressure doubles during the constant-volume heat addition process. For a maximum cycle temperature of 4000 °R, determine (a) the heat added to the cycle, in Btu, (b) the net work of the cycle, in Btu, (c) the thermal efficiency, and (d) the mean effective pressure, in lbf/in.2.

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

Items are similar to the free issue items, but their access is limited. (clo5) a)-bin stock items free issue b)-bin stock controlled issue c)-critical or insurance spares d)-rebuildable spares e)-consumables

Compute the pressure drop of 30°c air flowing with a mean velocity of 8 m/s in a circular sheet-metal duct 300 mm in diameter and 15 m long. use a friction factor, f 0.02, and pair = 1.1644 kg/m a. 37.26 pa b. 25.27 pa n c. 29.34 pa d. 30.52 pa