Analysis of the energetic and exergetic performance in condensers of thermal generation plant

Abstract

In the present study, the influence of the flow parameters of the cooling water on the operating conditions of the condenser is evaluated. The above, by simulating codes that represent the thermal behavior of the equipment. The study focuses on the influence of the temperature and the flow rate of the cooling water on the pressure, heat transfer coefficient, and exergy efficiency of the condenser. Additionally, mathematical correlations are made between these operating variables. The study shows that the flow of cooling water causes a reduction in the condenser pressure. However, it does improve its heat transfer capacity. On the other hand, a 2 °C increase in temperature produces a 6% increase in condenser pressure. Pressure levels above 8.5 kPa cause a considerable reduction in the energy and exergetic efficiency of the condenser. Similarly, the exergetic efficiency of the condenser is also affected by heat losses to the environment. Additionally, the increase in temperature allows the condenser to operate at a higher exergy efficiency. Finally, the development of the correlations carried out can become a tool for evaluating the performance of the condenser under different operating conditions.