…and inside the pipe!
A hallucinogenic, psychedelic,
like totally
far-out journey through time,
...
And The Wind Cries…
•  Heat Loss!
Welcome to
Hydronics Land…
What Does That Mean?
Next Step – Distribution Piping
So, What Size Pipe, Dude?
1”
What’s Next?
Why 12 PSI?
27.72’
Air Eliminators
Basic Air Scoop
How Does It Work?
Increased cross Vanes deflect bubbles
sectional area slows into uppe...
High Performance Air Removal
Point Of No Pressure Change
Pumping Toward Tank
4 psi
Circulator
0 psi 8 psi
differential d...
Pumping Toward Tank
0 psi
Circulator 8 psi
4 psi drop 18.5
...
Pumping Away from Tank
4 psi
8 psi
drop
12psi 1...
Pumping Away from Tank
8 psi
8 psi
drop
18.5 ’
...
Henry’s Law
Expansion & Diaphragm Tanks
Air
Water
How a Diaphragm Tank Works
Boyle’s Law
Sizing Expansion Tanks
Centrifugal Pump Basics
Centrifugal Pump
Circulator Anatomy
Impeller,
Engineered Plastic
Casing,
Cast Iron or
Bronze
Water Lubricated Cartridge
How The Water Moves
"Head"
2.31’
An Important Truth…
≠
Sizing A Circulator
Let’s Do One…
37,000
20 X 500
37,000
=
10,000
= 3.7
Series Loop Maximums
Tube Size BTUH/Ft Max BB Max BTUH
½” 600 25 feet 15,000
¾” 600 ...
Estimating Head Loss
Real Head Loss
Calculating Head Loss
Reading A Pump Curve
Head
Flow
But At Lower Flows…
Reading A Pump Curve
Head
Flow
Steep & Flat Curves
Variable Speed Pumping
The Power of Delta T
A Simple System…
Total heat loss: 75,000 BTUH
Each zone: 25,000 BTUH
Boiler S&R Mains: 1”
Zone Piping: ¾”
...
System Curve
System
15
Operating Point –
All...
When Zone Valves Close…
As Zone Valves Close…
System System
Operating P...
As Zone Valves Close…
System
Operating Point –
2 Zones C...
Universal Hydronic Formula
GPM
÷ 500
6.5
A Better Solution…
15
10
5
5 10 15 20 Taco 00-VDT
A Simple Solution
Peace, Love
& Hydronic Mixing…
Why Mix?
Mixing For The Radiant
Cv : flow
across a
piping
compo...
How Much Head?
Cv : flow
across a
piping
component
needed to
...
iValve Reset
How Does It Know?
720 – Design Outdoor Temp
Let’s Do One…
=
72 - 0
= 0.8
72
What Does 0.8 Mean?
Cast Iron Boilers
Cv Woes?
First, The Piping
Injection circulator
How Does It Work?
1300 Radiant
Supply
...
Let’s Figure It Out…
1300 Radiant
Supply
1800 Boiler
...
Some Baseboard Info…
And More…
Something Different…
Low temperature heating range
Naosm 09
Naosm 09
Naosm 09
Naosm 09
Naosm 09
of 69

Naosm 09

Presentation at NAOSHM Trade Show, Hershey, PA - 2009
Published on: Mar 3, 2016
Published in: Technology      Business      
Source: www.slideshare.net


Transcripts - Naosm 09

  • 1. …and inside the pipe! A hallucinogenic, psychedelic, like totally far-out journey through time, space and expansion tanks… May 19, 2009 Presented by Taco, Inc
  • 2. And The Wind Cries… •  Heat Loss! Welcome to Hydronics Land…
  • 3. What Does That Mean?
  • 4. Next Step – Distribution Piping
  • 5. So, What Size Pipe, Dude? 1”
  • 6. What’s Next?
  • 7. Why 12 PSI? 27.72’
  • 8. Air Eliminators
  • 9. Basic Air Scoop
  • 10. How Does It Work? Increased cross Vanes deflect bubbles sectional area slows into upper chamber velocity 18” straight pipe – creates laminar flow – air comes to the top
  • 11. High Performance Air Removal
  • 12. Point Of No Pressure Change
  • 13. Pumping Toward Tank 4 psi Circulator 0 psi 8 psi differential drop 18.5 ’ 12psi 12 psi off 12 psi tank
  • 14. Pumping Toward Tank 0 psi Circulator 8 psi 4 psi drop 18.5 8 psi differential 12 psi on 12 psi tank
  • 15. Pumping Away from Tank 4 psi 8 psi drop 12psi 18.5 ’ off
  • 16. Pumping Away from Tank 8 psi 8 psi drop 18.5 ’ 12psi on
  • 17. Henry’s Law
  • 18. Expansion & Diaphragm Tanks Air Water
  • 19. How a Diaphragm Tank Works
  • 20. Boyle’s Law
  • 21. Sizing Expansion Tanks
  • 22. Centrifugal Pump Basics
  • 23. Centrifugal Pump
  • 24. Circulator Anatomy Impeller, Engineered Plastic Casing, Cast Iron or Bronze
  • 25. Water Lubricated Cartridge
  • 26. How The Water Moves
  • 27. "Head" 2.31’
  • 28. An Important Truth… ≠
  • 29. Sizing A Circulator
  • 30. Let’s Do One… 37,000 20 X 500 37,000 = 10,000 = 3.7
  • 31. Series Loop Maximums Tube Size BTUH/Ft Max BB Max BTUH ½” 600 25 feet 15,000 ¾” 600 67 feet 40,000 1” 770 104 feet 80,000 1¼” 790 177 feet 140,000
  • 32. Estimating Head Loss
  • 33. Real Head Loss
  • 34. Calculating Head Loss
  • 35. Reading A Pump Curve Head Flow
  • 36. But At Lower Flows…
  • 37. Reading A Pump Curve Head Flow
  • 38. Steep & Flat Curves
  • 39. Variable Speed Pumping
  • 40. The Power of Delta T
  • 41. A Simple System… Total heat loss: 75,000 BTUH Each zone: 25,000 BTUH Boiler S&R Mains: 1” Zone Piping: ¾” Head Loss: 9’
  • 42. System Curve System 15 Operating Point – All Zones Calling 10 5 5 10 15 20
  • 43. When Zone Valves Close…
  • 44. As Zone Valves Close… System System Operating Point – Operating Point – 2 Zones Calling 1 Zone Calling 15 15 10 10 5 5 5 10 15 20 5 10 15 20 6.5 GPM 4 GPM
  • 45. As Zone Valves Close… System Operating Point – 2 Zones Calling ΔT x 500 15 ΔT x 500 10 5 5 10 15 20 6.5 GPM
  • 46. Universal Hydronic Formula GPM ÷ 500 6.5
  • 47. A Better Solution… 15 10 5 5 10 15 20 Taco 00-VDT
  • 48. A Simple Solution
  • 49. Peace, Love & Hydronic Mixing…
  • 50. Why Mix?
  • 51. Mixing For The Radiant Cv : flow across a piping component needed to create 1 PSI pressure drop
  • 52. How Much Head? Cv : flow across a piping component needed to create 1 PSI pressure drop
  • 53. iValve Reset
  • 54. How Does It Know? 720 – Design Outdoor Temp
  • 55. Let’s Do One… = 72 - 0 = 0.8 72
  • 56. What Does 0.8 Mean?
  • 57. Cast Iron Boilers
  • 58. Cv Woes?
  • 59. First, The Piping Injection circulator
  • 60. How Does It Work? 1300 Radiant Supply 1800 Boiler 1800 Supply 1200 Mixing Point 1200 Radiant Return
  • 61. Let’s Figure It Out… 1300 Radiant Supply 1800 Boiler Supply BTUH ΔT x 500 30,000 1200 Radiant 60 x 500 Return
  • 62. Some Baseboard Info…
  • 63. And More…
  • 64. Something Different… Low temperature heating range

Related Documents