Questions tagged [environmental-engineering]
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58 questions
0 votes
1 answer
57 views
How can I improve my skills in mass and energy balances after completing the course and practicing exercises?
I recently completed a course on mass and energy balances, and while I actively participated in exercises and tried to grasp the core concepts, I’m still facing challenges when it comes to applying ...
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56 views
Need help identifying this gas turbogenerator model (photo attached)
I’m trying to identify the technical specifications of these turbogenerator units (photo attached). My goal is to assess the environmental risk factors highlighted by their manufacturers, particularly ...
1 vote
1 answer
47 views
How to determine optimal DO and ORP sensor placement for a carousel-type oxidation ditch with fine bubble aeration
I’m working on a senior project that involves giving recommendations for the placement and control strategy of Dissolved Oxygen (DO) and Oxidation-Reduction Potential (ORP) sensors in an oxidation ...
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123 views
How can I improve this soil-retaining water diversion ditch design for a downhill lawn?
I'm a recent high school graduate with some foundational engineering knowledge, and I'm designing a ditch system for a homeowner who asked for: ...
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60 views
What type of a system is the methane concentration in the atmosphere with respect to our methane emissions? Is it IT1?
So, what type of a linear time-invariant system can be used to approximate the behaviour of atmospheric methane concentration with respect to our methane emissions? Let's assume the methane ...
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72 views
I am using a bag house filter to filter particulates in cement industry. suggest an economical combined technology to filter the gases as well
I have designed the baghouse filter but I don't know what device should I install in combination with the baghouse such that it filters the toxic gases too. I saw a lot of technologies but the cost is ...
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0 answers
388 views
Calculating Mass Transfer Coefficient for Vaporization Rate
I've been tasked with estimating the evaporation rate of a theoretical spill of 32% HCl solution for the purposes of estimating worst case impact to indoor air quality. The worst case approach would ...
0 votes
2 answers
86 views
Lead Cladding on Telephony (landline) copper cables. Any other early industrializers with this problem?
A recent environmental hazard has just been uncovered this past week by the Wall Street Journal: "America Is Wrapped in Miles of Toxic Lead Cables" https://www.wsj.com/articles/lead-cables-...
-1 votes
1 answer
61 views
Why regulations on refrigerant and not on efforts in preparing standard for leak proof refrigeration system?
Refrigerants from CFC series are banned due to environmental concerns,but why not focus on preparing a standard for registration system which minimize or eliminate leakage? It must be difficult to ...
3 votes
2 answers
230 views
Is the Stop-Start technology detrimental or good for the car?
I found a lot of articles on internet about how bad the stop-start technology is for your car and how it contributes to the faster wear of multiple parts, or how superb the feature is for the Sacred ...
0 votes
3 answers
368 views
Why not use sodium hydroxide to reduce carbon dioxide emissions?
The products of the reaction are useful. Renewables like solar power can be used for the electrolysis of brine. I don't understand why petrochemical companies are not using it as a scrubber?
1 vote
1 answer
54 views
what are some books/academic journals which I could read on renewable energy/technology? [closed]
Book suggestions on renewable energy technologies/sources
1 vote
1 answer
267 views
How much energy is needed for the USA to only use desalinated water?
What amount of energy would it take to replace the entirety of America's water consumption with desalinated water? And how does it compare with the country's current energy generation capacity? By &...
0 votes
1 answer
73 views
Is it possible to avoid the emission of CO2 and other greenhouse gases from thermoelectric plants?
Since the deleterious effects of greenhouse gases are well known, I was wondering if it is possible, for example, for thermoelectric plants to avoid this kind of emissions. More exact, I think it ...
1 vote
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58 views
Air Conditioner for an Acrobat Plane
What kind of Freon air conditioner would work upside down? Or somehow make it cut off and start working again when upright? I have a small cabin so it can be electrically driven. I know they have an ...