am wrote:
mobile doesn’t mean pre-fab,
and vice versa

jt wrote:
they are both useless

am wrote:
obviously you’ve never been to burning man

jt wrote:
http://tw.youtube.com/watch?v=TC3PVt1_Jyc&feature=related

am wrote:
do i need to watch that?
i don’t know who that is?

jt wrote:
you might like it, he talks about prefab

am wrote:
since when do i like prefab!
i think those hold-punched trailers like that stan guy promotes are the
biggest scam since ‘naked lunch’

jt wrote:
who is stan?

am wrote:
stan allen?
maybe i am thinking of someone else.
i know it was one of those denari or lotek type of guys.

jt wrote:
xxxx xxxxxx

am wrote:
probably him.

why doesn’t coa have their new house on their site?
that blog only has construction pix;
surely they have some dwgs or renderings?

jt wrote:
architects websites are useless, at least coa isnt flash based…

Instant coffee is a beverage derived from brewed coffee beans. Through various manufacturing processes the coffee is dehydrated into the form of powder or granules. These can be rehydrated with hot water to provide a drink similar but generally regarded as inferior to conventional coffee. At least one brand of instant coffee is also available in concentrated liquid form.

…

Drying

This step is a very important one and two different methods are used in plants all over the world, freeze and spray drying, each has its own advantages and disadvantages.

Freeze Drying

The basic principle of freeze drying in the process for producing instant coffee is the removal of water by sublimation.

Since the mass production of instant coffee began in post-WWII America, freeze drying has grown in popularity to become a very common method. This is often because, although it is frequently more expensive than other methods of drying, it generally results in a higher quality product.

The Freeze Drying Process

1. Agglomerated wet coffee granules are frozen. For instant coffee this is a very important stage. Freezing too fast leads to large ice crystals and a very porous product and can also affect the colour of the coffee granules.
2. Frozen coffee is placed in the drying chamber, often on metal trays.
3. A vacuum is created within the chamber. The strength of the vacuum is critical in the speed of the drying and therefore the quality of the product. Care must be taken to produce a vacuum of suitable strength.
4. The drying chamber is warmed, most commonly by radiation but conduction is used in some plants and convection has been proposed in some small pilot plants. A possible problem with convection is uneven drying rates within the chamber, which would give an inferior product.
5. Condensation - the previously frozen water in the coffee granules expands to 10⁷ its volume, the removal of this water vapour from the chamber is vitally important, making the condenser the most critical and expensive components in a freeze drying plant.
6. The freeze dried granules are removed from the chamber and packaged.

Spray Drying

This method of drying is preferred to freeze drying in some cases because of its cost effectiveness, short drying time, usefulness when dealing with such a heat-sensitive product, and the fine, rounded particles it produces.

Spray drying produces spherical particles of size roughly equal to 300 µm with a density of 0.22 g/cm³ (ref 2). To achieve this, nozzle atomisation is used. Various ways of nozzle atomization can be used each having its own advantages and disadvantages. High speed rotating wheels operating at speeds of about 20,000 rpm are able to process up to 60,000 pounds (27 t) of solution per hour (ref 3). The use of spray wheels requires that the drying towers have a wide radius to avoid the atomised droplets collecting onto the drying chamber walls.

Typical Spray Drying Characteristics

* Completed in 5-30 seconds (dependent on factors such as heat, size of particle, and diameter of chamber).
* Moisture content change, IN = 75-85% OUT = 3-3.5%
* Air Temperatures, IN = 270 °C OUT = 110 °C

One drawback with spray drying is that the particles it produces are too fine to be used effectively by the consumer; they must first be either steam-fused in towers similar to spray dryers or by belt agglomeration to produce particles of suitable size.

From Wikipedia, the free encyclopedia

spatial arrangement

look up ehopper’s ‘automat’ to see full image (girl’s legs)

retaining 1 quart of coffee + soy in my bladder, listening to manes “under ein blodraud maane”, and hatching 184 grods