Solar-Based Project: Making a Steam Engine to Generate Power

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Discussion Overview

The discussion centers around the feasibility of creating a solar steam engine for generating electricity, particularly focusing on the design and efficiency of using solar collectors to produce high-temperature steam. Participants explore various aspects of the project, including the potential for home use, cost-effectiveness, and the mechanics of steam generation.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Homework-related

Main Points Raised

  • One participant proposes using a parabolic trough collector and a compound parabolic concentrator to achieve high temperatures for steam generation.
  • Another participant asserts that generating high power steam is feasible, referencing its routine use in solar thermal power plants, but emphasizes the necessity of sunlight.
  • A participant expresses concern about the energy output of a miniature version of the steam engine, questioning its ability to generate sufficient energy to rotate the turbine effectively.
  • There is a suggestion to use a solar tracking device, but the specific mechanism remains unclear, prompting a request for guidance.
  • One participant mentions the possibility of bypassing a boiler by directing steam to the turbine through a venturi, raising questions about the validity of this approach.
  • A suggestion is made to perform calculations to optimize efficiency and power output.

Areas of Agreement / Disagreement

Participants express differing views on the feasibility of generating sufficient power with a solar steam engine, with some asserting it is possible while others remain skeptical, particularly regarding the limitations of a miniature design. The discussion includes multiple competing ideas about design and methodology.

Contextual Notes

Participants have not reached a consensus on the effectiveness of the proposed designs or the necessary components for achieving the desired steam pressure and energy output. There are unresolved questions regarding the mechanisms for solar tracking and the direct use of steam without a boiler.

Who May Find This Useful

Individuals interested in renewable energy projects, particularly those focused on solar power applications, as well as students working on related engineering or physics assignments.

jack001
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hello folks,
as a last year student i have told to submit a project and so I decided to work on a solar based project.

Finally i came up with an idea of making solar steam engine.

I will be using two different solar collector to gain high temperature of working fluid. It will be a parabolic trough collector and a compound parabolic concentrator(700cm dia) placed in series through a pipe carrying water.

This steam will rotate the turbine that inturn generates electricity.

I just want to know will it create a high power steam that will be capable of generating?

The answer was NO when i asked to one of my professor.

I want to make it as possible as cheap, mobile(if possible), and small in size.

My main aim to do this is one can have this at their home to generate their own electricity and gets rid of bills, low use of fuels good for eco. Please suggest a good design and of-course a feasible one.

Thank you.
 
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The answer is YES of course. It is done routinely at Solar thermal power plants.

The BUT is: you need Sunlight.

My suggestion: use a parabolic antenna from TV receivers. Coat it with a reflective layer, like: remove the paint, let deposit chromium.

With a simple boiler, you'll get saturated vapour, up to +374°C and 218b. Approximately bar = (°C/100)^4. This vapour will partially condense within the turbine, which is no big drawback. It happens at the high-pressure turbine of any pressurized water reactor.
 
hey enthalpy,
thank you for your reply.

I mean to say i am working on a miniature of that kinda plant. So it might won't be possible to generate that energy to rotate the turbine giving high rotation.

And one more thing i am confused about it is solar tracking device. What kindof mechanism should i use?

:)
 
hey and maybe i am not using boiler. I am just taking that steam to turbine directly which leads to high pressure(passing it through venturi). Please guide me if i am wrong.
 
I would work some numbers and see if you can optimize the efficiency and power output.
 
thank you edgepflow.
 

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