In: Civil Engineering
A chemical company started producing a new chemical which produces cyanuric fluoride (C3N3F3) and diazomethane (CH2N2) as waste products. The process waste stream has a concentration of 200 mg/L cyanuric fluoride and 200 mg/L diazomethane. The flow rate of the waste stream is 1000 L/min. The effluent concentration limit is 5 micrograms/L for both of the waste products. Cyanuric fluoride undergoes a first-order decay at the rate of 0.5 min^(-1), while diazomethane undergoes a second-order decay at the rate of 0.5 L*mg^(-1)*min^(-1). The plant was debating between using a single-stream CMFR or PFR to treat the waste stream. Calculate the required volume for the CMFR and PFR to reach the effluent standards for both of those wastes.
In: Civil Engineering
Find the maximum bending moment and locate the point of inflection for a propped cantilever beam of span 8 m due to a uniformly varying load, whose intensity is 10 kN/m at the fixed support and 2 kN/m at the simple support
In: Civil Engineering
What are the significance and the accuracy of asphalt flash and fire test
In: Civil Engineering
■ Who were the BOLSHEVIKS and the MENSHEVIKS and what were their disagreements?
■ How did LENIN make use of the SOVIETS in challenging the
PROVISIONAL GOVERNMENT in Russia after the fall of the tsar?
■ What policies did the BOLSHEVIKS follow after seizing power in
Russia?
■ What were WOODROW WILSON’S GOALS at the negotiations for the
Versailles Treaty?
What treatment did germany recieve undwr thebterms of the yreaty of versailles?
In: Civil Engineering
Need answer for all the questions
Assessment 9.0: Soil Mechanics
Produce a 300 word report which identifies the cause and effect of slips in embankments and cuttings and the affect it might have on safety of the line.The report should include the theory behind soil mechanics – soil saturation, subsidence, inappropriate mineral extraction, overloading of embankment by neighbouring construction and subterranean fires. Include a range of potential solutions to embankment stability risks.
In: Civil Engineering
During your first month as an employee at
Greenfield Industries (a large drill-bit manufacturer),
you are asked to evaluate alternatives for
producing a newly designed drill bit on a turning
machine. Your boss’ memorandum to you has
practically no information about what the alternatives
are and what criteria should be used. The same task
was posed to a previous employee who could not
finish the analysis, but she has given you the following
information:Anold turning machine valued at $350,000
exists (in the warehouse) that can be modified for the
new drill bit. The in-house technicians have given
an estimate of $40,000 to modify this machine, and
they assure you that they will have the machine ready
before the projected start date (although they have
never done any modifications of this type). It is hoped
that the old turning machine will be able to meet
production requirements at full capacity. An outside
company, McDonald Inc., made the machine seven
years ago and can easily do the same modifications
for $60,000. The cooling system used for this machine
is not environmentally safe and would require some
disposal costs. McDonald Inc. has offered to build a new
turning machine with more environmental safeguards
and higher capacity for a price of $450,000. McDonald
Inc. has promised this machine before the startup date
and is willing to pay any late costs. Your company has
$100,000 set aside for the start-up of the new product
line of drill bits. Use the seven-step procedure from Table 1-1 to
analyze the situation
In: Civil Engineering
why is pressure negative in water filtration process?
In: Civil Engineering
Define Sustainable development. Is the planet on the path to sustainable development? Give at least two facts to support your opinion.
In: Civil Engineering
austral steel company has 2 re rolling plants locations P1 and P2with supply capacities of 100 and 120 tonnes rod (of fixed diameter) per day, respectively. Austral steel has 3 distribution centers at locations DC1, DC2 and DC3. the distribution centers need if possible, 80,120 ,and 60 tonnes of rod each day respectively to meet distribution demands. The shipping socts ($/tonne) is as follows:
From P1 to DC1 = 1
from P1 to DC2 = 2
From P1 to DC3 = 3
From P2 to DC1=4
from P2 to DC 2 = 1
From P2 to DC3 = 5
Develop a formulation for optimal solution to satisfy these constraints
In: Civil Engineering
What are the differences between centrifugal compressor and reciprocating compressor?
In: Civil Engineering
heat exchanger has water in the outer conduit and ethylene glycol in the inner. It is desired to have a Reynolds number of 1000 in the inner conduit and 15000 in the outer conduit. The inner conduit is 5mm inside diameter and the outer conduit is 12mm inside diameter. Specify the pressure drop per unit length in the each conduit (Pa/m). The inner conduit has a wall thickness of 0.75 mm.
In: Civil Engineering
Describe about the Spread Footings foundation?
Need explanation and step by step solution and without
plagrism
In: Civil Engineering
Given:
a. A 16 FT Column of A992 Steel.
b. Factored Axial Load (Pu) equal to 350 kips.
c. Weak Axis Fixities i. Rotation fixed and translation free at the top. ii. Rotation fixed and translation fixed at the bottom.
d. Strong-Axis Fixities i. Rotation free and translation free at top. ii. Rotation fixed and translation fixed at bottom.
e. Limit Column Selections to Table 4-1 of AISC Steel Manual. f. Show full Calculations are required for final validation.
In: Civil Engineering
How is life cycle assessment (LCA) used internationally to address the economic consequences of drinking water supply under climate change?
In: Civil Engineering