Monthly Archives: February 2013

“Free” as in “Freedom”

A part of technological design I think is important, is the distribution model chosen.  In a dominantly capitalist economic system, marketability seams to be a deciding factor in the success of an idea or even whether anyone bothers building something

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Posted in Philosophy, Refrigeration

A Philosophy Behind Technological Development.

I have a lot of technical designs I hope to apply to the real world, even if they only suit me personally because they are either too impractical or simply undesirable for most.  Anyone who has read any of my

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Posted in Philosophy, Refrigeration

Discourse On Dehumidifiers

I’d like to talk about dehumidifiers; what they are, how they work, design failures and improvements I’d make. The dehumidifiers I write of are a specific kind, but probably the most common.  They are the small white plastic towers people

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Posted in Dehumidifiers, Refrigeration

Excerpts from “Elementary Mechanical Refrigeration” by Fred E Matthews, 1912

The following are several pages taken from the above mentioned book.  A similar explanation is more or less copied in “Power’s Principles of Refrigeration” of which I have a 1921 copy.  Take special note of the beautiful illustration below.  Clicking

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Posted in Old Refrigeration Texts, Refrigeration

On the Subject of Compressors

The refrigeration compressor is where all the ‘magic’ happens.  To understand the process of compression is to understand the fundamental principles of mechanical refrigeration.  A compressor is the mechanism that allows us to reuse that same refrigerant over and over.

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Posted in Refrigeration

Recycling Hot Water

There are a number of different ways to heat domestic water for bathing, washing clothes, dishes and whatever else people need.  Electric Resistive, Natural Gas, Propane, Kerosene, BioMass, Solar, Heat Pumps and even Compost Heaps come to mind.  Obviously, some

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Posted in Hot Water, Refrigeration

Hand Crafted Refrigerators

I’ve been collecting antique refrigeration books for a little while now and so far, my favorites have been two editions of ‘Household Refrigeration’ by H.B. Hull.  It is a beautifully laid out book covering both thermodynamic engineering principles relating to

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Posted in Old Refrigeration Texts, Refrigeration, Refrigerator

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