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  • Users: BPLBPL
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  1. BPLBPL

    Vertical pipe run and pipe support

    Hello everyone, * In a solar hot water closed loop project, I intend to run the vertical raisers (carrying the hot and cold heat transfer fluid)inside a chimney chase 3ft x 3ft. The chase runs vertically from the boiler room to the roof and is about 80 ft long. The problem is how to support the...
  2. BPLBPL

    Closed loop - Gauge pressure vs fill volume

    Hi all, please help with the below question. Consider a 300ft , Dia = 1-inch ID copper pipe closed loop system laid horizontally i.e., elevation = 0. To fill the system fully with water we would need: System Volume= (3.14/4)x(D^2)x 300' = 1.636 ft^3 = 12.24gal A pressure gauge in the loop...
  3. BPLBPL

    Domestic Hot water Tank - Bacteria issue

    Hi all, I'm designing a solar hot water system similar to the below layout. http://www.solarforce.com/files/45-0147_MSTR_large.jpg The storage tank is large - 1000gal and is supposed to store domestic hot water at 120-140F. Should I be concerned about any bacterial growth in the tank, though...
  4. BPLBPL

    Flowrate issue through a 3/4" Cu pipe (solar)system

    Hi all, I'm currently trying to fix a badly designed closed-loop Solar thermal system running at the below conditions: 3/4 inch, 'L'-type Copper piping(0.785" inside dia) Flow rate = 2.2 gpm Pressure head @ 2.2gpm = 28 ft of H2O Tiny Grundfos pump = UPS 15-58FC The system is running into...
  5. BPLBPL

    Pressure drop in a closed piping system

    Hi all, this may be a trivial/dumb question. I have a simple, closed hydronic system of 2" pipe dia. with a SS tank in the loop. I'm trying to select a pump for this closed system. Tank dimensions = 16' length, 5' diameter System flow rate = 5 gpm System pressure = 12 psig The question is, how...
  6. BPLBPL

    SOLAR THERMAL TANK DESIGN ??

    Hi all, I'm designing a Solar domestic hot water system consisting of solar collectors, 2 flat-plate heat-exchangers and a 3,000 gal tank which stores the hot water from the collectors. The link below has the simple design layout and other details. Further discussion below are based on this...
  7. BPLBPL

    SOLAR THERMAL TANK DESIGN ??

    Hi all, I'm designing a Solar domestic hot water system consisting of solar collectors, 2 flat-plate heat-exchangers and a 3,000 gal tank which stores the hot water from the collectors. The link below has the simple design layout and other details. Further discussion below are based on this...

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