Further interpreting of the Kelvin-Planck statement (single reservoir) Thermal reservoir Heat Atransfer W ycle System Boundary Mass "="only when no irreversibilities of any kind are present "<"associated with irreversibilities within the system of interest Assuming:thermal reservoir and the portion of the surroundings with which work interactions occur are free of irreversibilities. 上游充通大 Apr/5 Wed,2017 3 SHANGHAI JIAO TONG UNIVERSITYApr/5 Wed, 2017 3 Further interpreting of the Kelvin-Planck statement Assuming: thermal reservoir and the portion of the surroundings with which work interactions occur are free of irreversibilities. “<” associated with irreversibilities within the system of interest “=”only when no irreversibilities of any kind are present (single reservoir)