OSA
WATER
WORKS

TECHNICAL INFORMATION

REFERENCES AND DATA SHEETS

The links below provide a series of helpful technical information useful for design and engineering.

Head losses in closed pipe--Graphical (1/2"-->8" Diameter)

Head losses in closed pipe--tables (3/8"-->6" Diameter)

Hazen-Williams head loss calculator

Water velocity in closed pipe

Periodic Table of the Elements:  Standard

Periodic Table of the Elements:  Dynamic

Conversion Calculator

Conversion Tables

THE GREENING OF COSTA RICA

A series of essays that focus on sustainable development, renewable resource, green engineering, and helpful tips for off-the-grid living and eco-friendly development in Costa Rica.

Costa Rica's call to lead sustainability in the Carbon Age:  July 21, 2008

Clearing the Air on the Biofuel Boondoggle:  July 20, 2008

Winds of change start at around nine miles per hour, July 25, 2008

Green-Go Industries, October 29, 2008

Home Energy Analysis, November 22, 2008

No Carbon for Me, Costa Rica, July 1 2009  (Published under the title Alternative energy sources for homes in Costa Rica by www.sellingcr.com on July 8, 2009.

Home Solar Power System Design:  Cookie Cutter Instructions  July 27 2009 (Part II of a solicited series on solar power)