final year project ideas in mechanical engineering

kameo

@jimgram: sir the idea of solar welding has been rejected by our project coordinator because he thought that he said the precision of welding is very poor and time required to get that much amount of heat is also high......... also regarding the conversion of solar energy into electricity using mirrors(heliostat field) a question arises that the solar energy will be maximum only between 11-3 and also during that time too the sun wont be stable and it will be moving in that case the mirror efficiency will be poor and we have to tilt the mirror according to the sun position................ so please guide me with some other ideas..........

jimgram

If you are still interested in direct solar energy (and ENTHUSIASTIC about it) you should do an Internet search. I think your project coordinator may be just a little biased OR - he may just want to see if you are willing to fight for your idea.

The argument regarding the time when solar power is at its maximum applies to all solar technology (as does the weather - clouds, rain, cleanliness of the absorber/mirrors, etc.). Even photo-voltaics must be adjusted for the angle of the seasonal changes in the position of the sun. Tracking mirrors is a fundamental challenge for a heliostat field - one that has been successfully addressed in several installations. A major innovation could be the development of a small tracking system which would require a compact (and economical) boiler, turbine, or steam engine (or maybe a yet to be thought of more direct way to utilize the heat from 10, 20, or even 100 suns (this is the way a heliostat field works: every mirror adds the equivilent area of the "sun" so that two mirrors combine to create concentrate the energy of two "suns": 1 sun = 1 kW/m^2). You'll see plenty of examples in the category of DIY innovators on the Internet and especially YouTube

kameo

@jimgram. sir i just want to tell you one thing i m still confident of doing project on solar energy or may be the renewable energy sources but the point is that not only the project coordinator or project guide said that the solar welding wont work. . . so i request you to suggest me some more ideas on solar energy or renewable energy sources other than that two(solar welding and energy conversion) ..........

jimgram

My suggestion for direct solar power has nothing to do with welding.....I agree that this would not be practical. I'm looking for advancements in the field of sun tracking and/or energy conversion (e.g. heat to electric)

kameo

please suggest some mechanical engineering project ideas

kameo

Oh i dropped dat solar welding plan........... my next project idea is that generating power from the industrial waste water....... we have a Waste water container, Rotating blades, Gear and wheel setup, Coil and permanent magnet.

The water falls on the vanes with high pressure. So the vanes in the turbine are rotated with constant speed. The gear setup can be adjusted to control the speed of the fly wheel. A magnet is connected with the gear. The magnet will be rotated when the fly wheel is rotated.

The coil is fixed around the magnet. When the fly wheel is rotated, the driver gear is rotated by one cycle and there by the driver gear is rotated 50 times.

According to Faraday's law, “As long as there is a change in magnetic flux linked with the coil, an emf is induced.” So, In each and every rotation, electricity is generated. Thus there is an alternate flow of electricity. Since this uses no fuel, this is very cheap and best....... so someone post the feasibility of this project and give me suggestions to finish thos [roject.................. quick replies pleaseeeeeeee

kameo

[QUOTE=Aero51;4082053]A any idea about my conversion of industrial waste water into electricity

kameo

please someone reply for this project: conversion of industrial waste water into electricity
the waste water is placed in the container having heater at the bottom so the temperature of the water keeps increasing and a pressure gauge is fixed at the top to regulate the pressure of the industrial water......... now the hot water goes through the nozzle during which its pressure will be raised. . it strikes the turbine blades causing the rotational motion of the blades then it is coupled with the dynamo and the moving coil produces an emf and this is utilised by using a rectifier and an inverter to run a cfl lamp........... please someone guide me in this project

Aero51

I think it would be a good idea but you need to pick a project that you think you would enjoy! Personally, I think the solar welder is much cooler, however if your group deemed it unfeasible then that sucks... Also, do you plan to heat the water via solar cells?

kameo

finally decided to do a project: COGENERATION WITH PETROL ENGINE ...........
i need some details about my project..... can it works with petrol engine and what type of heat recovery system we need to use ? is it a recuperator or heat exchanger..... and our incharge need to know what amount of electricity we can produce......... but how can we tell him without really doing it :/ we are gonna do the comparison by using leaded and unleaded petrol........ but how to calculate the efficiency in that......