Household domestic refrigerators typically employ which type of compressor____________________?
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Answer: D. piston type reciprocating
Explanation
Household domestic refrigerators typically employ a hermetically sealed, miniature reciprocating piston-type compressor. This sealed design encloses both the electric motor and compressor mechanism within a welded steel shell to prevent refrigerant leaks. Reciprocating piston technology provides reliable pressure generation and quiet operation suitable for residential kitchen environments. Hermetic compressors eliminate rotating shaft seals, which are common sources of refrigerant leakage in open-type compressors. Reciprocating compressors use a crankshaft and connecting rod mechanism to drive pistons within cylinders for vapor compression. Domestic refrigeration units operate intermittently, controlled by thermostats sensing internal food compartment temperatures.
Option A centrifugal compressors are utilized in large commercial water chillers rather than small household refrigeration units. Option B axial compressors are designed for high-flow gas turbine engines rather than domestic vapor-compression systems. Option E none of the above is incorrect because piston-type reciprocating compressors are the standard industry choice.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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