| Pump and
Plumbing Sizing for Solar Water/Space Heating Systems |
| Pump and
Plumbing Sizing for Solar Water or Space Heating System
Details on
solar pump/pipe sizing... |
 This
page covers the details of sizing the pump and the plumbing for a solar
space or water heating system so that the system efficiently transfers heat
from the collector to the storage tank without being excessively large.
Details on
solar pump/pipe sizing... |
| How to
Determine Collector Flow Rates |
 This
page takes you through how to determine flow rate for your collector, and
what the tradeoffs are ... |
| HVAC |
| Pipe
Flow Calculations
http://www.pipeflowcalculations.com
|
 Nice
set of calculators for pressure drop, airflow calculations, ... |
Air Duct Friction Loss Calculator
From The Engineering Toolbox
www.engineeringtoolbox.com/...
|
 A
simple calculator for calculating the pressure losses in air ducts.
Useful for sizing ducts and fans. |
| Air Friction chart for flex ducts
http://www.hartandcooley.com/flex/air_friction_chart.pdf
|
An easy to use chart to look up
friction losses for flex ducts. I find this one simple chart answers most
of my duct loss questions -- it even has a correction for bends at the
bottom. |
| Free Calc -- a variety of HVAC
calculators
http://www.freecalc.com/
|
Duct losses, fluid flow, heat
exchangers, ... |
|
Stack Effect Ventilation Calculator |
Estimates airflow for thermal
stacks |
| Friction loss in round or
rectangular ducts
www.engineeringtoolbox.com/ ...
Note: The Engineering Toolbox site
has a lot of useful stuff, but also has some very scummy popup windows -- so
beware. |
A very simple air duct pressure
loss calculator. The duct calculator at the link just above is will handle
a wider variety of conditions, but is more complex to use. |
| Air Density Calculator
http://www.denysschen.com/catalogue/density.asp
|
Calculates air density for the
temperature and altitude you input. |
Reynolds Number
Re
Calculator...
|
 A
nice and flexible calculator for Reynodls number -- accepts a wide variety
of units and flow conditions.
The fluid viscosity inputs that are needed can be looked up on the
Engineering Toolbox website. |
| Pipe Flow |
| Copper Pipe Pressure Drop
http://www.engineeringtoolbox.com
|
Handy pressure drop table for
copper pipe. Note: 1 psi = 2.3 ft of head
Other pressure drop tools on this site:
Engineering Toolbox -- Pipe Flow |
| Pipe Pressure Drop Online
Calculator
http://www.pressure-drop.com/
|
 Nice
online pressure drop calculator. Handles a wide variety of situations.
Also figures loss for bends, orifices, nozzles, ... |
| Pipe flow and Duct Flow Calculators
Mike Rocchetti
http://www.connel.com/freeware/index.shtml
|
Calculators for pressure loss in
pipes and ducts, steam tables, and a Psychrometric Calculator |
| Hydronic
Heaters -- Baseboard, ... |
| SlantFin Hydronic Baseboard
Radiator Output
Baseboard output at low temps... |
 SlantFin
manual on their hydronic baseboard units showing output at lower temps that
might be typical of what you would get on efficient solar heating systems. |
