By Rex Miller, Mark Richard Miller, Edwin P. Anderson
Understand how to place a sit back within the air
Here eventually is a reference guide dedicated solely to refrigeration, either domestic and advertisement. starting with the basic physics and math, it offers an entire direction in holding, troubleshooting, and repairing either new and classic refrigeration platforms for domestic and light-weight undefined. You'll locate the solutions you wish, even if you're a pupil, apprentice, cost-conscious home-owner, or expert technician.
* know the way forms of refrigerants are used and the way to deal with them safely
* practice regimen upkeep on quite a few kinds of compressors
* try for leakage and unravel universal difficulties equivalent to freeze-ups
* fix and change fridge cupboard parts
* Troubleshoot universal issues of domestic freezers
* comprehend the operating elements of either electrically pushed and absorption-type refrigeration units
* learn how to troubleshoot and retain the big variety of automobiles utilized in cooling devices
* provider and service automated icemakers, water coolers, and reveal situations
Read Online or Download Audel Refrigeration: Home and Commercial (5th Edition) PDF
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Additional info for Audel Refrigeration: Home and Commercial (5th Edition)
Example text
Mass is a property of all matter. Gas, air, water, and metals have mass. The weight of a substance is caused by the Earth’s attraction on a substance (gravity). The only condition in which a substance has no weight is when it is falling in a perfect vacuum under the influence of gravity. At all other times it has weight. 2 ft/s 2 The unit of mass is the slug. 505 kilograms. 2 Table 1-5 shows the metric units of weight and their conversion to the English system. Before defining specific gravity, it should be explained that there must be a certain temperature used in arriving at specific gravity because liquids, solids, and gases will expand when heated and contract when cooled.
Since heat and solid are only relative to our senses, materials immersed in a pan of water will lose heat to it, and the heat extracted will be taken up by the water and used to generate steam. Through the extraction or flow of heat from objects so immersed, the water (assumed to be under the same normal sea-level pressures) would remain at 212◦ F, which would be cooler than the atmospheric temperature of our hypothetical planet. Fortunately for Earth dwellers, other liquids boil at temperatures much below that of water.
It has not been used much in home refrigeration and is not being used today to any degree. 4)—Ethyl chloride has been practically eliminated from the refrigeration field. 8)—Sulfur dioxide was once used 2 to a large degree, but it is very toxic and the only places that you will encounter it are in very old domestic refrigerators. 5)—Carbon dioxide is not used 2 in domestic refrigerators. 0)—Freon-12 was very popular for a long time. 7)—Freon-22 is no longer allowed to be used in domestic freezers.