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  1. E

    Refrigeration question

    using R-22 for example...what my question means is that to design a refrigeration cycle u select the pieces according to capacity, but what makes sure they wil operate at a certain condensing temp and evap and not another?
  2. E

    Refrigeration question

    Hey All Suppose ur designing a refrigeration cycle. if u go to the market to choose parts for an 18000BTU/h circuit. The compressor has different ratings according to the entering temp and exit temp, then u have the thermal expansion valve which is also rated in BTU/hr depending on entry and...
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    A question professor couldnt solve!

    know the L'Hopital theorem?? can't we use it here?
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    The power of a fan

    usually power is Voltage x Current...but i don't know if there's an addition to that for AC current
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    Masters in Sustainable Energy Engineering

    Hey all I just got accepted to KTH which i hear is one of the best universities in Sweden, unfortunately i'm in a dilemna. I have a great job and good salary and the company would soon become dependant on me after the main engineer leaves in the coming week and my salary can go as high as my...
  6. E

    Solar Water Heater

    ok point taken...but if u want to buy it? do u have an idea what it would cost?
  7. E

    Solar Water Heater

    Just curious...how much would it cost you to install a solar water heating system ($/Watt) where u live?
  8. E

    Can't go back to sleep

    yep ziad u got what i mean :)
  9. E

    Can't go back to sleep

    when i can't sleep i listen to the news.... since lebanese news is so hilarious when u watch 2 waring tv stations, it can give u good value for ur time, beat paramount by miles :P
  10. E

    Working in a nuclear power plant

    well in the end u can always sell yourself to Iran..they would take u :P
  11. E

    New coke bottles

    i'm so with 20 Liters, the 2 Liter bottle just vanishes quickly, especially while working on a pc...and i don't want to start smoking until the doctors forbid me to drink soda :)
  12. E

    How to make clear ice.clear ice

    pouring a thin slow moving water over a special evaporator plate would freeze the water fast and u would have a collecter that removes the ice off the evaporator and guides it into a dispenser..
  13. E

    Balloon Car

    internal combustion engine, or propulsion?
  14. E

    News Are americans more ignorant than europeans?

    i wonder about the chances of him attacking iran instead of iraq.. :P
  15. E

    News Are americans more ignorant than europeans?

    i know that...it was just an example
  16. E

    News Are americans more ignorant than europeans?

    actually learning facilities in the US are really great...i was talking about the general public with all its constitutents.i mean take an example how many ppl in the USA would now were Mongolia would be? or even Iraq? George Bush propably still doesn't know were Iraq is...i've seen it once on...
  17. E

    How to make clear ice.clear ice

    what is the ice to be used for? or what is the size of ice u want? i think i have ur solution.
  18. E

    Heat transfering issue

    yes actually the answer should take account both reasons..deltaT and the radiation emmissions which vary propotional to T^4 and that's a lot of difference with a small temperature change. and the surrounding temperature of the environment.
  19. E

    News Are americans more ignorant than europeans?

    looooooooooooooll....ok i don't think that all americans are stupid, anyway if americans were smart they would really disown bush, this guy is dumb seriously dumb. As for americans in general they are not stupid, they are ignorant to their surrounding because of lack of interest, and again this...
  20. E

    Evaporator terms

    well i got the book before u answer...its magnificent, what i was looking for all the way..thnx
  21. E

    Evaporator terms

    does dossat's book guide u through the whole evaporator and condenser designs?
  22. E

    Evaporator terms

    thank you, i will check the book out..
  23. E

    Enthalpy of Formation

    Electronegativity is the pull that a certain atom has to attract another atom...i think u can get a better definition from Wikipedia i would really be surprised if the heat of formation had nothing to do with electronegativity, but there mayb another factor, there should be another factor actually
  24. E

    Which language sounds the nicest?

    i wonder, how they expect us to learn chinese, when they can't understand each other !! :)
  25. E

    Evaporator terms

    thnx russ.. about the 10 tons, the performance of the heat exchanger lies in tubing, and gases flowing, and so and so...i felt its wierd that they rates the compressor as if it was the only defining principle in the heat exchanger. but i guess ur right.
  26. E

    Which language sounds the nicest?

    lol yeah...or english subtle jokes translated to french on french channels :)
  27. E

    Which language sounds the nicest?

    yeah i think ur right about that, some translations definitely don't work..especially if its a comedy :)..
  28. E

    Which language sounds the nicest?

    u know i'm starting to think that ur right about english, but it seemed easier to me from french even though french was my first language, and is still easier to me than arabic even though i'm lebanese, i also tried german and italian. german is difficult, italian is easy because its like french...
  29. E

    Which language sounds the nicest?

    the good thing about english is that it is adapting with our needs and pronounciations. lebanese arabic flows well because it is a mixture between western tongues and arabic tongues very different from other arabic accents and simple to use but still hard grammar. and yes hebrew seemed to stay...
  30. E

    Which language sounds the nicest?

    ever tried another language?
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