New answers tagged

4

This was my senior team project in engineering school, in 1974. Here were our findings: The power needed to run a small absorption refrigerator can be supplied by a solar collector of about 32 square feet, but the temperature required to boil the ammonia out of the water requires a concentrating collector (not a flat plate)- and hence requires an aiming ...


0

Stainless steel has an average life expectancy of about 50-100 years. Look no further than the two most famous stainless steel monuments, the St. Louis arch and Chrysler building. While Chrysler is made of a high nickel/chrome alloy than most. The Arch is a great example, Upclose it's kinda dingy after 50 years. Inspections show it to be structurally sound ...


4

It is a lot more efficient to convert the solar to electricity and run a decent heat pump for AC and normal refrigeration. Absorption refrigeration is expensive, bulky, not terribly versatile, and has poor thermal efficiency. The Coefficient of Performance of a large single stage absorption chiller is about 0.7. The conversion efficiency of solar electric vs ...


6

Strictly speaking, very few metals are "stable" in terms of the laws of thermodynamics. True chemical stability is when the atoms are in their lowest energy state. For most metallic elements, various oxides, sulfides, and chlorides are lower energy states than the pure or alloyed metal. This is why corrosion occurs in the first place--the atoms ...


2

It depends on the environment , relative to corrosion. Sea water is relatively corrosive to most metals, but again ,it depends. Splash zone is vey aggressive, low oxygen at great depth is relatively benign. What do you want the answer to be ?


1

Top 3 in Compendex database are Energies, and this one and this one. Only Energies has full Open Access, the other two supports Open Access but most articles are paid. ScienceDirect is just a Database used to find an article and read the abstract. For actual access, unless you have an institution credential, you'll have to Google the article and find it ...


Top 50 recent answers are included