The domestic refrigerator is one found in almost all the homes for storing food, vegetables, fruits, beverages, and much more. This article describes the important parts of the domestic refrigerator and also their working.
We have seen various types of absorption refrigeration systems like simple absorption cycle, ammonia-water absorption cycle and also the vapor compression refrigeration cycle. Let us see the comparison of the vapor absorption cycle and vapor compression cycle.
This article describes International system of units, popularly known as SI system of units. It also describes the advantages of the SI units, the fundamental and derived SI units and the rules for writing the SI units.
This article describe fundamental or basic and derived units of measurement and the desired requirement of these units. It also describes systems of units like CGS, MKS, FPS and SI.
The use of computers for quality control of the product is called as the computer aided quality control or CAQC. This articles describes important aspects of CAQC including computer aided inspection (CAI) and computer aided testing (CAT)
This articles describes what the standard of measurement is and how National Bureau of Standards was found.
Ammonia or R717 is amongst the oldest of all the refrigerants and still used widely in the refrigeration applications. It is also the only refrigerant outside the halocarbons group. Let us the properties of ammonia refrigerant.
Refrigerant R134a is a hydrofluorocarbon (HFC) that has zero potential to cause the depletion of the ozone layer and very little greenhouse effect. Let us see the various properties of this refrigerant and how it replaces R12.
The chemical name of refrigerant R11 is trichloromonofluoromethane and its chemical formula is CCl3F. Refrigerant R11 is chlorofluorocarbon (CFC). R11 has the highest potential to cause the depletion of the ozone layer. Let us see more details about the refrigerant and its alternatives.
The most widely used refrigerant, R12 is a CFC and high potential to cause ozone layer destruction. The best replacement for R12 is R134a refrigerant. This article describes various replacement options for R12.
Refrigerant R12 or Freon 12 is said to be the most widely used of all the refrigerants being used for different applications. Let us see the properties, advantages and disadvantages of refrigerant R12.
The use of computers for process planning is called as Computer Aided Process Planning or CAPP. There are two approaches for computer aided planning process: retrieval type CAPP systems and generative CAPP systems.