The degree of superheat and evaporating temperature can vary with refrigeration load. When the refrigeration load increases, the degree of superheat also tends to increase. This is because as more heat is absorbed by the refrigerant in the evaporator, it requires a higher evaporating temperature to achieve the desired cooling effect.
On the other hand, the relationship between the degree of superheat, refrigerant flow rate, and evaporation temperature is as follows:
1. Higher refrigerant flow rate: When the flow rate of refrigerant increases, it results in a lower degree of superheat. This is because a higher flow rate allows the refrigerant to absorb heat more quickly, reducing the superheat level.
2. Lower evaporation temperature: If the evaporation temperature decreases, it leads to a higher degree of superheat. This occurs because a lower evaporation temperature means less heat is available for the refrigerant to absorb, resulting in a higher superheat level.
To visually represent these relationships, I am unable to provide a graph as it requires visual elements. However, imagine a graph with the degree of superheat on the y-axis and refrigeration load on the x-axis. As the refrigeration load increases, the degree of superheat will also increase. Additionally, you can visualize another graph with the refrigerant flow rate and evaporation temperature on the x-axis and y-axis, respectively. As the flow rate increases, the degree of superheat decreases, while a decrease in evaporation temperature leads to a higher degree of superheat.
I hope this explanation helps you understand the relationships between the degree of superheat, refrigeration load, refrigerant flow rate, and evaporation temperature.