A case study of the energy-technological complex seawater desalation on the basis of a heat pump. Part 1. Heat pump

This paper describes the operation of an energy-technological complex, including a heat pump, a photovoltaic panel, and a desalination plant. In describing the functioning of the complex as a whole, special attention is paid to the designs of the individual elements, the energy balance and the exergy method. The calculation allows the integration of additional components, such as a turbo-expander for the implementation of the organic Rankine cycle, a wind turbine, and a solar concentrator. The authors present developments to the design and operation of an energy-technological complex. A combination of the energy balance methods of thermodynamic analysis and the exergy method was used to determine the energy losses in the installation and to calculate the energy efficiency of the system. The exergies were calculated at key points of the cycle. The methodology allows the integration of various types of renewable energy sources into energy complexes and improving technological systems based on heat pumps and evaporation plants. The energy complex includes a scheme for an evaporative plant. The methodology and the calculation of the exergies of water and water vapor will be presented by the authors in the next part of the experimental study.