Figure P9.10D provides the schematic of an internal

Chapter 9, Problem 9.10D

(choose chapter or problem)

Figure P9.10D provides the schematic of an internal combustion automobile engine fitted with two Rankine vapor power bottoming cycles: a high-temperature cycle 1–2–3–4–1 and a low-temperature cycle 5–6–7–8–5. These cycles develop additional power using waste heat derived from exhaust gas and engine coolant. Using operating data for a commercially available car having a conventional four- cylinder internal combustion engine with a size of 2.5 liters or less, specify cycle working fluids and state data at key points sufficient to produce at least 15 hp more power. Apply engineering modeling compatible with that used in the text for Rankine cycles and air-standard analysis of internal combustion engines. Write a final report justifying your specifications together with supporting calculations. Provide a critique of the use of such bottoming cycles on car engines and a recommendation about whether such technology should be actively pursued by automakers.