Answer :
Superheat in refrigeration is defined as the difference between the actual suction line temperature and the evaporator’s saturation temperature. This can be expressed mathematically as:
[tex]$$
\text{Superheat} = T_{\text{suction line}} - T_{\text{evaporator saturation}}
$$[/tex]
Here, the suction line temperature is the temperature of the refrigerant vapor as it leaves the evaporator, and the evaporator saturation temperature is the boiling point of the refrigerant (at the evaporator pressure).
Given this method, the calculation is performed by subtracting the evaporator saturation temperature from the suction line temperature. This corresponds to the option:
[tex]$$
\textbf{By subtracting the evaporator saturation temperature from suction line temperature.}
$$[/tex]
Thus, the correct answer is option B.
[tex]$$
\text{Superheat} = T_{\text{suction line}} - T_{\text{evaporator saturation}}
$$[/tex]
Here, the suction line temperature is the temperature of the refrigerant vapor as it leaves the evaporator, and the evaporator saturation temperature is the boiling point of the refrigerant (at the evaporator pressure).
Given this method, the calculation is performed by subtracting the evaporator saturation temperature from the suction line temperature. This corresponds to the option:
[tex]$$
\textbf{By subtracting the evaporator saturation temperature from suction line temperature.}
$$[/tex]
Thus, the correct answer is option B.
