Analysis of Combined Power and Refrigeration Generation Using the Carbon Dioxide Thermodynamic Cycle to Recover the Waste Heat of an Internal Combustion Engine

Figure 4

System layout and 𝑇-𝑆 diagram of SDF and DDF cycles.

(a) System layout of SDF cycle

(b) 𝑇-𝑆 diagram of SDF cycle

(c) System layout of DDF cycle

(d) 𝑇-𝑆 diagram of DDF cycle