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Re: [TRNSYS-users] question about stratified storage tank



Fredery,
  The temperature of the storage tank depends on the thermal losses and gains to the tank. The water that goes to the load would probably be a great deal hotter than 20C but it may be that an external auxiliary heater brings the temperature up to the delivery set point or it may be that water is maintained at a higher temperature in a second tank. Ground water where I live is typically at about 10C so the bottom of a stratified storage tank could be as cold as that, at least temporarily until the solar collector or an an auxiliary heater warmed it up.
Cheers,
 David


At 02:41 6/27/2007, fredery lavoye wrote:
Dear TRNsys users,
I'm working on the modelisation of a solar system with stratified storage tank. I've seen on the example (name is SDHW) the repartition of the temperature in the tank. Is it normal that the temperature at the bottom of the tank is less than 20°C? Is it not dangerous for health to store domestic water at this temperature?
Thanks for your answer
Best regards
Fredery


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