Table of Contents
What is the cooling process of refrigerator?
Refrigerators work by causing the refrigerant circulating inside them to change from a liquid into a gas. This process, called evaporation, cools the surrounding area and produces the desired effect.
What is the complete cycle of how refrigerator works?
The refrigeration cycle works by transferring heat from inside of the unit to the outside using condensation and evaporation. For example, bacteria could spoil milk in just three hours if it is left out at room temperature. By refrigerating it, it can stay fresh for up to a few weeks.
What is the correct sequence in Vapour absorption refrigeration system?
The Vapor Compression Refrigeration Cycle involves four components: compressor, condenser, expansion valve/throttle valve and evaporator. It is a compression process, whose aim is to raise the refrigerant pressure, as it flows from an evaporator.
Which of the following is the correct sequence of processes involved in simple air cooling refrigeration?
Explanation: A simple air cooling system has 5 processes in T-S diagram namely ramming process, compression process, expansion process, refrigeration processes and cooling process.
What is the correct temperature for a fridge?
40° F
Keep the refrigerator temperature at or below 40° F (4° C). The freezer temperature should be 0° F (-18° C). Check temperatures periodically. Appliance thermometers are the best way of knowing these temperatures and are generally inexpensive.
Which is the cooling process?
Physical operation in which heat is removed from process fluids or solids; may be by evaporation of liquids, expansion of gases, radiation or heat exchange to a cooler fluid stream, and so on.
What is a normal refrigerator cycle?
It is typical for a refrigerator compressor to run anywhere between 4 to 8 hours straight before shutting off. In fact, newer refrigerators are expected to constantly run 80-90 percent of their lifetime.
Which cycle is used in refrigeration?
vapor-compression refrigeration
The vapor-compression refrigeration is the most widely used cycle for refrigerators, air- conditioners, and heat pumps.
What is the correct sequence in vapour absorption refrigeration system Mcq?
Solution: The correct sequence of VC, VA and SE in increasing order of COP is VA, SE and VC, the Value being of the order of 0.3 to 0.4 0.5 to 0.8 and 4 to 5 respectively.
Which of the following is correct sequence for flow of refrigerant in VCR system?
Answer: The vapour refrigerator cycle involves four components as a sequence are compressor, condenser, expansion and evaporater.
Which is the correct sequence of processes taking place in Bell Coleman cycle?
Explanation: The Bell-Coleman cycle has 4 processes namely isentropic compression process, constant pressure cooling process, isentropic expansion process and constant pressure expansion process.