Blog Archives

Heat Pump or Heat Engine?

I haven’t bent any copper for a few weeks now.  Between the heat, a vacation, and some bad habits, the shop has barely been opened.  Part of the reason is due to a recent fascination with power plants.  Previously, in

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Posted in Personal, Refrigeration, The Squatch, Water

Ejector Assembly Construction

This is a three part series on refrigeration ejectors.  Part I on theory, is Ejectors in Refrigeration – an Expressor, and Part II on manufacturing techniques, Handmade Copper Ejector. There is a lot of video media, so I will jump

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Posted in Refrigeration

Ejectors in Refrigeration – an Expressor

Having developed a degree of confidence with copper brazing, and reaching the potential limits of what can be learned, I have decided to move past my original work with the Ebullator.  I document my progress with that device in Refrigeration

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Posted in Refrigeration

Cannibalizing the Ebullator

I’ve moved on, in regards to what I think can be learned from the first flooded evaporator system, I have been calling “The Ebullator”.  Far too many limiting features were preventing me from moving on to the next step in

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Posted in Refrigeration

Amateurish Refrigeration Research

I have a High School Diploma, and that is about the extent of my formal education.  My real education comes from years of mechanic jobs, fiddling with and fixing things around the house, building things I need rather than buying

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Posted in Hot Water, Refrigeration, Refrigerator

Refrigeration Test Bench – Part III

In Part I, I shared a lot of media relating to my efforts in building a refrigeration test bench.  I intended to build the whole thing from a DIY approach, and utilize a York 210 – Belt Driven Air Conditioning

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Posted in Refrigeration

The KillCap Catalogue

I enjoy designing vapor compression machines.  It all started with a refrigerator.  I have thought long and hard on how these mainstays of modern living could be improved and someday I will make some of them a reality.  In the

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Posted in Dehumidifiers, Hot Water, Philosophy, Refrigeration, Refrigerator

Future Plans

I’ve been thinking quite a lot about refrigerator designs and what steps I’m going to take in developing them.  I tend to take on a lot more than I can chew and then when it all becomes too overwhelming, I

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Posted in Philosophy, Refrigeration, Refrigerator

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

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

Some Old Refrigerating Machines

I recently purchased these two books from abebooks.com.  They are the second and fourth editions, 1926 and 1933 respectively.  I don’t remember what they cost, but I would have easily payed double.  They are filled with illustrations and descriptions of

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Posted in Old Refrigeration Texts, Refrigeration

Some Thoughts On Refrigerants

Refrigerants are the blood of a vapor compression system.  They are pumped round and round in an infinite loop of compression and expansion.  The types of materials selected for use in refrigeration are based on a number of factors, the

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Posted in Refrigeration

I Caught the Refrigerator Bug

I caught the refrigerator bug again.  It happens every few months, I get a job, I quit a job, I change  my musical taste, I read a few books; but then, it comes back with a fury.  That damned refrigerator

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Posted in Refrigeration, Refrigerator

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