Results 1 to 14 of 14
  1. #1
    Join Date
    Apr 2009
    Location
    South Africa
    Age
    49
    Posts
    108
    Rep Power
    15

    Solar cooling plants and design.



    Solar cooling is an attractive idea because cooling loads and availability of solar radiation are approximately in phase. As the refrigeration system operates – small pump work neglected - without the need for mechanical or electrical power, it is independent of electrical grids and thus may prevent in remote rural regions the spoiling of agricultural products in storage due to the lack of refrigeration.

    That is why there is a high demand for application of solar cooling for decentralised cold storage of food in the countries of the sun belt of the earth.
    Solar cooling uses solar thermal energy to power a refrigerator, which in order to preserve food has to maintain temperatures lower than 5 °C in the storage room.

    Heat operated cooling systems are well known.
    Ammonia-water absorption refrigeration systems are normally preferred for low temperature applications.
    The heat input for this systems is required at temperatures higher than 90 °C. Therefore high performance solar collectors are needed to supply a sufficient solar energy input.
    This report presents two designed solutions using ammonia as refrigerant. The first refers to a 20 kW ammonia-water absorption system combined with evacuated tube collectors, which has been designed and preliminary successfully tested. Starting from this pilot plant, a cold storage depot has been designed to store fruit and vegetables at 4 °C, powered by solar energy only. Refrigeration load is 60 kW.

    This is a peace from a article I came upon searching for the know how of designing a solar absorption refrigeration plant.
    I hope this will bring apon the right people to help me design such a plant.
    Thanks
    LodieV
    Last edited by Brian_UK; 20-04-2013 at 10:43 PM. Reason: Tidied layout


    THE BEST WAY OF LEARNING IS TO DO IT YOURSELF!!!

  2. #2
    Join Date
    Apr 2009
    Location
    South Africa
    Age
    49
    Posts
    108
    Rep Power
    15

    Re: Solar cooling plants and design.

    Come now people lets step into the next century with this as co2 is to dangerous we need to develop other ways thats green and safe.
    THE BEST WAY OF LEARNING IS TO DO IT YOURSELF!!!

  3. #3
    Join Date
    May 2013
    Location
    USA
    Age
    36
    Posts
    4
    Rep Power
    0

    Re: Solar cooling plants and design.

    Quote Originally Posted by Lodiev View Post
    Come now people lets step into the next century with this as co2 is to dangerous we need to develop other ways thats green and safe.
    i agree with you

  4. #4
    Join Date
    Jul 2009
    Location
    Aden
    Age
    65
    Posts
    13
    Rep Power
    0

    Re: Solar cooling plants and design.

    Hi there, did you think about lithium bromide as absorption media,
    there are so much application in this type
    think about it

  5. #5
    Join Date
    Apr 2001
    Location
    New Port Richey, Florida - USA
    Age
    78
    Posts
    5,072
    Rep Power
    34

    Re: Solar cooling plants and design.

    Absorption systems are notoriously inefficient. The better way to go is conventional systems powered by photo voltaic panels. PV panel prices have been dropping at a rate of 15% per year and this trend is expected to continue. That means the price is cut in half every 3-4 years. Eventually it will be foolish not to have solar panels on your roof.

  6. #6
    Join Date
    Jul 2009
    Location
    Aden
    Age
    65
    Posts
    13
    Rep Power
    0

    Re: Solar cooling plants and design.

    good thinking to have a solar panel on your roof, can you help us by suggesting any suppliers for such panels ??


    regards

  7. #7
    Join Date
    Mar 2009
    Location
    KZN, South Africa
    Age
    63
    Posts
    2,212
    Rep Power
    20

    Re: Solar cooling plants and design.

    Agreed, Gary.
    Engineering Specialist - Cuprobraze, Nocolok, CD Technology
    Rarefied Technologies ( SE Asia )

  8. #8
    Join Date
    Dec 2010
    Location
    Toronto, Canada
    Age
    60
    Posts
    1,492
    Rep Power
    24

    Re: Solar cooling plants and design.

    Gary is a convert......yea

    Suppliers everywhere.....

  9. #9
    Join Date
    May 2013
    Location
    Australia
    Age
    39
    Posts
    3
    Rep Power
    0

    Re: Solar cooling plants and design.

    Installation need good quality of engineer.

  10. #10
    Join Date
    Apr 2001
    Location
    New Port Richey, Florida - USA
    Age
    78
    Posts
    5,072
    Rep Power
    34

    Re: Solar cooling plants and design.

    Quote Originally Posted by MikeHolm View Post
    Gary is a convert......yea

    Suppliers everywhere.....
    A convert? When have I ever been opposed to saving money? And when did I not want to thumb my nose at the big monopolies?

    Climate science is questionable and environmental politics is BS... but keep the prices dropping and eventually I will have panels all over my roof.

  11. #11
    Join Date
    May 2013
    Location
    madrid
    Age
    33
    Posts
    6
    Rep Power
    0

    Re: Solar cooling plants and design.

    this is an excellent idea, we need to cut our emmision co2 and other green house gases.
    every one must do their part to reduce co2 emmision.

    _____________
    India Tour | Event Management Companies in Delhi | Canada Immigration

  12. #12
    Join Date
    Apr 2001
    Location
    New Port Richey, Florida - USA
    Age
    78
    Posts
    5,072
    Rep Power
    34

    Re: Solar cooling plants and design.

    Quote Originally Posted by jamesmartin View Post
    this is an excellent idea, we need to cut our emmision co2 and other green house gases.
    every one must do their part to reduce co2 emmision.
    Really? Who are you to tell everyone what they must do?

  13. #13
    Join Date
    Dec 2010
    Location
    Toronto, Canada
    Age
    60
    Posts
    1,492
    Rep Power
    24

    Re: Solar cooling plants and design.

    Different motivations, same eventual conclusions. Go solar

    gary, I hope you live inland and at a slightly higher altitude. The sea is approaching, slowly but approaching.

  14. #14
    Join Date
    Apr 2001
    Location
    New Port Richey, Florida - USA
    Age
    78
    Posts
    5,072
    Rep Power
    34

    Re: Solar cooling plants and design.

    Hmmm... how about solar panels directly running a DC powered air conditioner, which has a hot water desuperheater? No inverter. No batteries.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •