As the evaporating temperature (suction temperature) decreases, the density of the refrigerant vapor at the compressor inlet also decreases. This means that there is less mass of refrigerant available for the compressor to draw in per unit of time. Consequently, the compressor’s ability to compress the refrigerant decreases, resulting in reduced volumetric efficiency.

As the ambient temperature increases, more energy the compressor has to use to compress the air, which reduces the efficiency of the compressor

The float chamber is used to maintain a constant level of refrigerant in the system. The float chamber is filled with refrigerant and oil. The high-side float chamber is located between the condenser and evaporator (high-pressure side) in a refrigeration system.

Sub-cooling is the process of cooling a liquid refrigerant below its saturation temperature. This is done by removing heat from the refrigerant after it has been condensed. In sub-cooling process does not involve any change in state. Therefore there is no change in pressure

The compression ratio is the ratio of the pressure of the refrigerant in the condenser to the pressure of the refrigerant in the evaporator. The higher the evaporating temperature, the more energy is required to compress the refrigerant, which increases the compression ratio.

Nitrogen is an inert gas, meaning it does not react with other substances. This makes it a good choice for purging air from refrigeration systems.

Miscibility refers to the ability of two substances to mix and form a homogeneous solution. Mineral oils are commonly used as lubricants in refrigeration systems. Most CFC refrigerants are miscible with mineral oils. Lack of miscibility may lead to several issues in refrigeration systems. It can result in inadequate lubrication of compressor components, which may lead to increased wear and tear, reduced efficiency, and potential compressor damage.

The condenser in the refrigeration system is responsible for removing heat from the refrigerant. The refrigerant enters the condenser as a high-pressure vapor from the compressor and is cooled by air or water at the condenser. As the refrigerant cools, it condenses into a high-pressure liquid.

The thermostatic expansion valve (TXV) is an important part of the refrigeration system which measures the temperature of refrigerant at evoparator and regulates the flow of refrigerant to evaporator helping to ensure that the evaporator is properly cooled. Thereby improving performance of refrigeration system

The specific volume of a vapor is the volume occupied by one unit mass of the vapor. The specific volumes of R-12 and R-22 are lower than the specific volumes of many other refrigerants, such as R-134a, R-410a, and R-404A.

If the discharge pressure of the refigerant is too low, the condenser will not be able to remove as much heat. This can lead to the refrigerant not being able to absorb as much heat in the evaporator, which results in reducion in the the cooling capacity of the system

Fluorocarbons are stable at room temperature, but they can decompose when exposed to high temperatures. When fluorocarbons decompose, they release harmful gases into the atmosphere. These gases can contribute to climate change and ozone depletion.

A solenoid valve is a type of valve that is controlled by an electric current. Solenoid valves are commonly used in refrigeration systems and are located in the liquid line to control the flow of refrigerant.

R401A is a HFC. It has similar properties to R-12, including a boiling point and a critical temperature. It is also non-ozone-depleting.