Electrothermal Desiccant Regeneration Technique for Air Dehumidification

Round 1

Reviewer 1 Report

The article and the idea are interesting. I have few comments:

Line 12: „(…) to direct heat the desiccant.” I do not understand

Line 4-: What is CMM in kW/CMM?

Fig. 4: Drop point. Shouldn’t it be dew point?

Chapter 2.1: I think that the adhesive also provides some additional thermal contact with high resistance, but as the h_vol was found empirically I understand it does not influence the calculations.

Line 127: Please add information how did you estimate the area.

Figure 7: Please add information on how the regeneration time was calculated. (it is much much later in the text).

Line 206: Final values were chosen after the trial and error procedure?

Line 251 and table 3: Please change the unit of Pressure gauge into SI

Chapter 4: Please provide more detailed information on the method of temperature measurement: where exactly were the TCs positioned in the bed (was it in the channel or maybe on the wall, was this on the outer side of the bed or near the center?). Also where were the pressure gauges?

Line 283: Please provide more information on the refrigeration dehumidification. It is unclear whether it was used in all experiments and should be used in the the system?

Line 319: Please change the CMM to SI.

Fig. 16: Please provide more information on how the cooling of the bed was permormed.

Table 6: It is Heatless or heat loss?

Line 389: The 0% heat loses on pipe are due to not heating them, not due to the insulation on ETAU, so the sentence should be re-phrased.

The manuscript should be read once again to find some minor spelling issues (few times the lack of "space") and add few missing verbs like "be" in some sentences.

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Reviewer 2 Report

The review of

"Electrothermal desiccant regeneration technique for air dehumidification"

The authors present new electrothermal absorbent unit for drying compressed air. They describe in deatail its design and produce process as well as test procedure.

All the units should be in SI system. What unit  is denoted with "CMM"? Cubic milimeter?

 

The detailed comments

Line 23. Compressed air is no primary energy resource, for there is needed an external work to compress air; thus it may not be named as “primary power source” in contrast to the fossil fuels, radioactive elements, work of Moon’s gravitational field, etc.

 

Line 34. “MOF” should be defined.

Line 47 and all the text hereafter. There is a superfluous full stop after figure citation, e.g “Figure. 1” in line 47. Please remove these full stops in the all manuscript.

Line 76. It should be “Figure 3 shows” instead of “Figure. 3 showed”.

Line 79. “UIO” is not defined.

Figure 3 is a bit fuzzy. The text in the figure should be written in greater font. The text in Figure 3 (b) should be written in contrastive colors.

Lines 93-98. I assume this paragraph presents the aim of the investigation. However it is unclear, especially because of the pass tense in the line 96.

The text in Figure 5 (a) is a bit fuzzy.

Line 150 the equations numbers should be formatted to the right. Please change it in all the text.

Lines 156 and 157. A sketch defining the variables would be helpful in understanding these equations.

Figure 7. The text is a bit fuzzy.

Lines 209 and 210. There are needed formulas for Reynolds, Nusselt and Sherwood numbers with a list of substituted values.

Lines 212-213. The conclusions in this sentence have yet been not proved.

Section 4. A sketch with pressure drop measurement would be helpful.

Figure 14. The graphs are rather fuzzy.

Figure 15. The text is a bit fuzzy.

Line 389. Heat losses may not be 0 because of an insulation, for no insulation is able to stop heat transfer; heat transfer does not take place only under lack of temperature difference.

Author Response

Please see the attachment.

Author Response File: Author Response.docx