Can you mention what design parameters can be changed to make the process faster?How long will it take for the special mineral to diffuse to the top layer of the desalination tank ?

Imagine you are a consultant engineer. You have been invited to solve the scaling issues within a boiler in a thermal power plant.
a. At first you decide to trouble shoot the boiler system by checking the pressure within it. Assuming the water is pure, what would be the expected pressure value for a boiler operating at 150 ◦C.
b. Since you physically observe scaling over the boilers inner surface, you suspect the presence of some dissolved salts in the boiler feed water. Will the dissolved salts increase/decrease/not-affect the calcu- lated pressure in the above question? Lets say the deviation is as mentioned in table 1, what is the concentration of the salt in wt% ?
Upon further inspection you notice a fault in the desalination system due to which there is an uncon- trolled amount of salt in the boiler feed water. Therefore, at the desalination tank you decide to add some special home made mineral at the tank’s bottom, which has the ability to combine with the existing salt and precipitate it.
1
Assignment 2
c. If the container is left undisturbed, How long will it take for the special mineral to diffuse to the top layer of the desalination tank ?
d. Lets say you decide to increase the diffusion process by heating up the tank. To do so you use the waste steam from the turbines that could heat up the tank to 80 ◦C. What would be the percentage increase/decrease in the time calculated from the previous question.
e. Can you mention what design parameters can be changed to make the process faster? Also mention the associated dimensionless numbers that can be used to characterise/rationalise the changes made.

Briefly explain in what way markets can fail and what kind of activities should be performed by the state to address these inefficiencies.

Answer both questions. The answers should be 750 words for each question. Please provide correct citations for each resource where the examples are coming from.

Government intervention in a market economy is justified by market failure. Briefly explain in what way markets can fail and what kind of activities should be performed by the state to address these inefficiencies. Do governments respond to market failures to the same degree? Provide examples from different countries and time periods reported in journal articles, news stories or government reports. Make sure you critically discuss each example in detail and provide your own critical overview.

In the case of a negative externalityt kind of government policies can be used to achieve the social optimum? Critically analyse and compare these policies. Use government reports, journal articles and news stories to support your answer.

How a source fits into your study after summarizing and evaluating it. Was this information helpful to you? What role does it play in shaping your argument? How can you incorporate this source into your research? Has it influenced the way you think about your subject?

The Gig Economy in the United States

• Some annotations are nothing more than a summary of the source. What are the key points of contention? What purpose does this book or article serve? What are the topics covered? What would you say if someone asked you what this article/book is about? The length of your annotations will determine your summary’s level of information.

• After summarizing a source, it’s good to evaluate it. Is it a good resource? In what ways does it differ from the other sources in your bibliography? Is the information trustworthy? Is this a biased or objective source? What is the source’s purpose?

• How a source fits into your study after summarizing and evaluating it. Was this information helpful to you? What role does it play in shaping your argument? How can you incorporate this source into your research? Has it influenced the way you think about your subject?”

Give 4 of the best options people can take in order to start protecting themselves and their money against rising inflation. Do your best to explain each recommendation as straightforward & understandably as possible.

How To Protect Your Money From Inflation

Inflation has greatly been on the rise over the past few months, and even more so recently with the current Russian Oil Ban and increasing prices of gasoline.

Give 4 of the best options people can take in order to start protecting themselves and their money against rising inflation.
Do your best to explain each recommendation as straightforward & understandably as possible.

Determine rate law with integral method and with differential method. Discuss the results of these 2 different methods.

Reaction kinetics and engineering assignment

A reaction () was carried out in solution at room temperature.

The following experimental data was obtained:

t (s) 0 500 1500 2500 3500 4500 5500 6500 7500 (mol dm-3) 0.02 0.0175 0.0141 0.0117 0.0101 0.0089 0.0079 0.0071 0.0065

-Determine rate law with integral method and with differential method. Discuss the results of these 2 different methods.

-Using a feed volumetric flow rate of 0.01 dm3/s, what is the volume of a single ideal, steady-state mixed flow reactor required to reach a conversion of 75%?

-Using a feed volumetric flow rate of 0.01 dm3/s, what is the volume of a single ideal, steady-state plug flow reactor required to reach a conversion of 75%?

Calculate in how much time (s) the water layer evaporates if the layer is 0.4 mm thick.

Physical transport phenomena: mass transfer

Water layer on concrete

On a smooth floor in a factory lies a layer of water covering a rectangular area of 4 m length by 3 m width. Air is blown over the surface in a longitudinal direction, at a velocity of 50 km/h, so the water evaporates.

The air is dry, at 1 atm and at 30°C. The diffusion coefficient of water vapor in air in this situation is 2.6×10-5 m2/s.

Calculate the convective mass transfer coefficient of water evaporating into air (m/s)). Look up the required formula to calculate Sherwood number for this situation. Also look up the necessary data of air to be able to calculate the relevant dimensionless numbers. Mention the sources where you found the data.

Calculate in how much time (s) the water layer evaporates if the layer is 0.4 mm thick. You will need to look up the saturation density of water vapour at 30 oC and 1 atm. Mention the source where you found the data.

What sectors of the economy contribute to GHGs in the US? Which nations are the top 5 emitters of GHGs?

Policy Tools to Reduce GHGs in the US: Vig and Kraft state “The scientific debate about the reality of human-induced climate change is settled, but significant disagreements remain among countries and public and private sector actors about allocation of costs and responsibilities for cutting GHG emissions and switching to cleaner technology” .

Answer the following questions:

1.What sectors of the economy contribute to GHGs in the US? Which nations are the top 5 emitters of GHGs?

2. Select one sector in the US– and describe 2 environmental policy instruments or tools that you would suggest be applied to encourage or require reductions in GHGs within the sector you have selected.

3. What policy-tool selection criteria would you use to select these 2 policy instruments?

4 What level of government – federal, state or local – may be most effective in implementing these GHG reduction policy instruments? Please justify your answer.

 

Do you research on Food Fable “How to Drink and Not Get Drunk? Research may include the historical origin, the country and/or countries where the Fables/Charts/Boxes originate.

Food History

Do you research on Food Fable “How to Drink and Not Get Drunk? Research may include the historical origin, the country and/or countries where the Fables/Charts/Boxes originate.

The paper should be 2-3 pages long, 12-point font, include a heading . Do include any research citations and a reference page with the resources used in addition to the text.

How could the study have been made better? What did you learn from this case study?

Cost benefit analysis for clean water

Report Number

A short description of the report

How important was the study? What purpose(s) did it serve?
What challenges are faced while conducting the study
Ways used for overcoming those challenges
How could the study have been made better?
What did you learn from this case study?
Include any other pertinent issue that you would like to bring .
Overall comment on the case study that you would like to make but are not asked .

Which lockdown policies are more effective on reducing the spread of Covid-19 in ASEAN countries?

Health Economics or Developmental economics

Covid-19 began in China and then spread into other countries. It caused a pandemic that made a lot of damage to the health of people and the economy of countries all over the world. Governments have applied different policies to control the spread of this Covid-19 pandemic. Among those approaches were the lockdown policies. With lockdown policies, governments would like to decrease the social contacts between citizens to reduce the spread of virus.
Association of Southeast Asian Nations include 11 countries in Southeast Asia: Brunei,
Cambodia, Indonesia, Laos, Malaysia, Myanmar, Philippines, Singapore, Thailand, Timor-Leste and Vietnam. This region is next to China and is the home of 647 million people. Because this region is next to China, it was affected by the Covid-19 very soon. In ASEAN countries, the governments applied lockdown policies very soon with the intension to prevent the spread of this virus in their countries. With lockdown policies, a lot of people could not come to schools and workplace, and a lot of businesses went bankrupt. Therefore, it is necessary to do research to understand which lockdown policies are effective to prevent the spread of Covid-19.
2 Research questions
We would like to do this research to answer two following questions:
Do lockdown policies have any effect on reducing the spread of Covid-19 in ASEAN countries?
Which lockdown policies are more effective on reducing the spread of Covid-19 in ASEAN
countries?