Solar Kettle-Thermos Flask

by SOLARWYSE: http://www.freewebs.com/solarwyse/

1 Introduction

1.1 Thank you for choosing SOLARWYSE’s Solar Kettle-Thermos Flask (SK-TF).

The SK-TF is an innovative response to the challenge in providing pasteurized water in a renewable and sustainable way.
When water is heated to a minimum of 65° C for at least 6 minutes, it is pasteurized and rendered free from most water borne pathogens and thus safe for human consumption.
Currently almost half the world's population has no access to safe drinking water and the situation is expected to worsen with increasing global pollution.

2. Cutting Edge Technology

The SK-TF uses the newest solar thermal technology: Selective Coated Solar Vacuum or Evacuated Glass Tubes invented by the Australians in the early 1990s.
The SK-TF is made from strong borosilicate ("pyrex") glass and cutting edge manufacturing technology.

How the Solar Kettle-Thermos Flask Works

The SK-TF is a solar vacuum glass tube collector.
Vacuum Tube Technology is superior because vacuum insulates heat without blocking out sunlight: a prefect solar collector paradigm.
Infrared rays from sunlight pass through vacuum, hit the black coating on the outer side of the inner tube, and heat up the water in the inner tube.
Solar heated water in the inner tube remains hot, insulated by the vacuum.
The SK-TF is more than 70% efficient in converting solar infrared light into heat energy.
Like a thermos flask, hot water in the SK-TF remains hot overnight, delivering hot water early in the morning even before the Sun is up!

How to Assemble the SK-TF

Fix the lateral leg stabilizer to the legs.

Screw in the bolts on both the legs to the "O" ring, making sure that you have the washers in between the legs and the bolts.

Do not over tighten bolts; leave enough space for "O" ring to move freely yet restraining lateral stabilizer from falling off.

By loosening or tightening the screws on the "O" ring, insert the glass tube into the ring and secure the screw.

DO NOT over-tighten the screws or bolts.

Tighten bolts to "O" ring after having determined your desired angle of inclination (ideally matching the latitude you are situated) and point the bottom of the tube towards the Equator.

Tie the nylon string to the cork and the solar vacuum tube.

RINSE the glass tube, fill with water but leaving a space of at least 25mm from the cork.

Cork the opening and leave the whole SK-TF in the sun for 1 to 2 hours.

When steam appears, the water is ready to be used. By tilting the tube on its legs, carefully pour the hot water into a clean container.

To double up as a Thermos Flask, simply cork the opening of the tube and the water will remain hot overnight for use in the morning even before the Sun is up.