Which of the following is a common effect of high pressure in refrigeration systems?

Higher energy consumption is a common effect of high pressure in refrigeration systems. When the pressure in a refrigeration system increases, the compressor must work harder to maintain the desired cooling effect. This elevated workload results in greater energy demand, which translates to increased energy consumption.

In refrigeration systems, higher pressure can also affect the overall thermodynamic cycle, potentially leading to inefficiencies. For instance, if the pressure is too high, the refrigerant may not adequately absorb heat in the evaporator, which is contrary to what is needed for efficient cooling. Therefore, as the compressor operates under increased pressure, it draws more electrical energy, leading to higher operational costs and reduced system efficiency.

Understanding this aspect is crucial for anyone operating or maintaining refrigeration systems, as it highlights the importance of keeping system pressures within specified limits to ensure optimal performance and efficiency.