Component-Oriented Modeling of a Micro-Scale Organic Rankine Cycle System for Waste Heat Recovery Applications
Round 1
Reviewer 1 Report
A non-regenerative, micro-scale 16 ORC system is tested in off-design conditions using R134a as the working fluid in this study. The experimental data are then used to tune the semi-empirical models of the main components of the system. This paper is well organized and written. The results are interesting and insightful. I only have the following suggestions on this paper.
- 1 illustrates the schematic and experimental flowsheet of the system. There are different state points in the schematic flowsheet. It would be clearer to readers if a T-S diagram is added in this paper.
- In Figure 18, 5 zones are indicated in the diagram. It is suggested that legends should be added to this figure.
Author Response
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Author Response File: 
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Reviewer 2 Report
The article tests ORC at various off design conditions. The article determines cycle efficiency and other things. The model produced accurately predicts the experimental data collected from the cycle.
The heat was provided by hot oil, I don't think the power needed by the oil pump was included. If this was hot air instead, there would be a power loss associated with the pressure drop of the hot air. The same can be said about the condenser. The power needed by the hot and cold fluid pumps might use up all the power made.
Can the system be made to change to be closer to design conditions through an accumulator, gearbox, etc.?
See attached file for other comments/questions/suggestions
In general I feel the paper is well written and should be considered for publication.
Comments for author File: 
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Author Response
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