tm545
commented
5 years ago Summer report comments round 2 - After Figure 1 (whose caption still isn't centered) you talk about the pros of the ACVRP but you should also mention some cons here I think to that you will be working to fix in the report, so you can introduce some of your challenges in the introduction.
Also just a random thought I just had. Your ram pump set up right now is built for the same flow at all times. In the plant the level of flow can be varied and depends on the influent supply. Additionally I don't think you can use the entire flow from a filter so you're probably splitting that flow at some point. Do you have a way to divert the required flow you would need to power the ram pump or can that also change? Sorry not related but was just wondering.
In your literature review you shouldn't go here's a statement (figure 2). You should organically mention your figure within the sentence. For example "As shown in figure 2 many water supply plants use horizontal ram pumps." You see how smooth that is in comparison to (figure 2).
Also another random thought if you increase the diameter of the drive pipe could you minimize some of the major frictional losses you're experiencing. If you're contracting into the smaller check valve diameter you would have a lot more minor losses which are proportional to the velocity squared so this might sky rocket but depending on your set up and the length of your drive pipe minimizing the major losses and increasing your minor might help? Dunno about this one either would need to do some quick maths if you send ur parameters.
Your figure 3 caption is centered and I'm really happy someone actually did this, proud of you guys.
I'm curious about the pulley system you mention in your previous work and how it worked. This could potentially be used to calculate the force necessary for the check valve to open/close?
Your schematic is a lot easier to understand from your method which is another improvement but I'm not sure if this is because I worked with you guys and have some background now but this is what might be necessary to fully understand the ram pump.
In your procedure possibly mention your change in how you pressurize the air chamber to avoid air bubbles in the one way valve chamber, not sure if you kept this change or if that was a dumb idea from me.
In your results you have a unlabelled figure of some code of you importing packages floating around also not sure if you even need that there or if its just in the wrong spot.
Before figure 6 that last sentence has a hiccup, also much better way of introducing the figure if you numbered it tho but you're getting better as I keep reading.
Try to not have naked code just sitting around and introduce what you're doing and why for example in your calculating static force on plant. You could also just do these calculations in latex to look better and then include this code in your appendix in case someone wants to look there.
Overall this version is a lot more understandable to me. I'd like to double check with someone who hasn't worked with ram pump for the last few weeks but I think it's well written and much better. It was a pleasure working with you guys.
Hello friends,
In your abstract you probably want to introduce the problem that ram pump is addressing. I understand what you mean when you talk about treated water flowing out to the distribution system but someone who is new to your subteam or is new to aguaclara would have trouble with this.
Introduction
Center your captions for figures.
You bring up the collection tank without really showing why it was needed or what it addressed. Please try to use past progressive instead of future which you use in the last paragraph of introduction.
Literature Review and Previous Work
Your previous work heading doesn't work. When you talk about the most efficient spring constant you don't really introduce how you're quantifying that efficiency.
Methods
You also talk more about efficiency in your experimental apparatus without defining it.
Experimental Apparatus is all wrong your effluent collection bucket is not present. Also describe how you keep the pressure up in the pressure chamber.
Procedure
The 6m head you bring up isn't fully explained for why it was brought up which would make sense to mention in your introduction.
You guys should use PID to keep up your air chamber at pressure.
Update your procedure to reflect your current procedure.
Results and Analysis
A lot of your math formatting looks spooky especially when you use the k' symbol it seems to mess up the other parts. Talk about if when you buy springs you are shown k' or k to justify why you're even calculating it. You do this later but possibly move this part to before.
Calculating Headloss Talk about derivation of terminal velocity before you introduce it as an experimentally derived parameter.
How is the diameter of the drive pipe smaller than the plate in waste check valve, seems spooky but I could see it happening, just seems spooky.
You seem to be rewriting parameters after just defining them, not sure if you mean to do this, seems like you forgot to comment out the old design.
Delete headloss calculation
Include theoretical pumped up volume, include amount of water pumped for actual viability of ram pump.
Better conclusion please.