What would a PV curve for a Quasiturbine engine look like?

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A discussion on the PV curve for a Quasiturbine engine highlights the challenge of visualizing its performance characteristics. Participants suggest exploring related resources, including articles and diagrams on Otto cycles, as a basis for understanding the Quasiturbine's PV curve. One user emphasizes the importance of considering temperature and entropy diagrams alongside the PV curve. The consensus is to adapt existing Otto cycle diagrams to better represent the Quasiturbine engine's unique features. Overall, leveraging existing resources and modifying them appears to be the recommended approach for the report.
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Im working on a report for my physics class on engines and I wanted to do a report on the quasiturbine engine but I can't figure out what a PV curve for a Quasiturbine engine would look like?
http://quasiturbine.promci.qc.ca/
 
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I'm not familiar with this engine, but just a thought: sometimes it's helpful to look at the temperature/entropy diagram as well.
 
disregard my last reply. I was just reading about this engine, and you probably want the P/V diagram, check out factbug.org

It says this engine operates around an otto cycle. I'm certain you can google a graphic of an otto cycle pv diagram. Then, perhaps modify it for your purposes?
 
The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

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