Question

In engineering project for designing and manufacturing solar chimney, how can I answer this question and fill each phase?

Explain briefly the key steps, deliverables and the method/procedures to be adopted in each phase?

Phase 1:Project planning and gathering scientific/practical information

Phase 2: Generating the design concepts followed by concept evaluation.

Phase 3: Manufacturing of the system.

Phase 4: Experimental investigation of the system under real operating conditions.

Phase 5: Developing a mathematical model to study the thermal performance of the system

Answer 1

Phase 1:

Project planning: If this is hands on project experience - Make a timeline for different stages of the project.

In this step you need to mention week wise/ day wise objectives to finish project on time. We should also try to mention which is going to be prioritised in the initial stages and which isn't going to be.

I suggest you to draw an activity diagram to put forth this information clearly and crisply. ( This depends on feasibility and time on hand, so go ahead with your own activity diagram ) .

Gathering scientific/practical information:

First mention the basic process and princple of solar chimney and hoehit is designed:

First go on explaining from the structure of chimney and then why it is supposed to be in black colour? And why there should be two vents ? Any additional facts which you think is crucial about design or manufacturing.

Secondly, Use Conference papers/ Research papers to prove certain points about designing and manufacturing of solar chimney.

Phase 2:

Generating design concepts followed by design evaluation.

Mention 3 designs (for example) - take three concepts of designs which you feel are good and unique in a specific way.

Concept Evaluation:

Go ahead with key differences between three projects

Let's say

1) Design standards ( How robust is the design ?)

2) How efficient is the chimney ( How is the flow of air from inside to out and vice versa)

3) what is the cost associated ( which one is cost effective model ? )

4) which one takes less time to complete ?

5) what is the range of its effectiveness ? ( How much area can this particular chimney cover to serve )

These are a few basic points that would differentiate between the three models. Now go on with the best one according to pros and cons.

Phase 3:

Manufacturing of the system - After finalizing the activity diagram this should not be a complicated issue, so first go ahead with sections of design.

Section 1 followed by section 2 and section 3 manufacturing. We should able to represent this in a pictorial way. Choose the best possible representation among many possible ones.

Then go ahead with process. ( A simple flow chart is also for the sake of our own understanding and then try other methods to show it)

Phase 4:

Experimental investigation of the system under real operating conditions :

In these choose certain metrics to quantify the performance of the system.

Example:

Area covered -

Effectiveness (on scale of 1-10)-

Temperature change from the system (time taken,difference observed)-

Some of the basic ones

Also show a expected vs actual portrayal to clearly have an understanding of project. ( Use graphs or table or any other representations)

Phase 4:

Developing a mathematical model to study the thermal performance of the system :,

A basic model would look like

Temperature change over a stipulated time period (dt) ~ surface area of chimney exposed (s.a) , time taken per unit change in temperature (TT) , temperature outside, area of chimney open to outside ,distance between two chimney's

The variable to use will be clarified once you finalize the model and put it in to effect. This should not be a big problem.

I suggest simply have one key dependant variable to study the thermal performance of the system then observe what would be the independent variable's that would effect this dependant variable. Then you can form an equation to determine the same.