- Thermodynamics cycle in trnsys simulation generator#
- Thermodynamics cycle in trnsys simulation license#
The first phase of energetic and exergetic analysis was made on the processes of SG. The primary circuit diagram is shown in Figure 1. 2 Energetic and exergetic comparative analysis We analyzed both heat transfer processes, as well as thermodynamic energy conversion, separately and in their interconnection, by energetic and exergetic methods. The present paper analyzes the “secondary” circuit (for thermodynamic conversion of heat into mechanical work, and power) of a CSPP-SC with parabolic trough, which takes over a heat flow rate, averaged over the duration of a sunny day, of 100 MW.
Thermodynamics cycle in trnsys simulation generator#
The restrictions given by the concentration factor, and the physical properties of the silicone oil limits the maximum temperature in the primary circuit, while the shape of the heat transfer t-q diagram for Steam Generator (SG) restricts the parameters in the thermodynamic cycle. At medium power, the CSPP-SC uses parabolic trough solar collector and silicone oil. In this case, the primary circuit uses molten salts. The big CSP Plants with Steam Cycle (CSPP-SC) use heliostats and towers with a high concentrating factor, which allow temperatures over 550 ☌ and main steam parameters similar to those from classical TPP. Additional, use of a heat stock in the “primary” circuit, allows a delay between the solar energy capture and the power generation. In solar plants with thermodynamic cycle, it allows increasing their efficiency. The Concentrated Solar Power (CSP) technology gets to high temperatures, depending of capture system: heliostats and towers, or parabolic troughs.
Thermodynamics cycle in trnsys simulation license#
This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Cenuşă et al., published by EDP Sciences, 2016 The results showed that the simplified design achieves practically the same thermodynamic performances with the advanced one. We compared, energetic and exergetic, two types of cycles, using a numerical model with iterative structure, developed by the authors.
For increasing its efficiency, it has regenerative feed water preheating and steam reheating. We choose a water-steam cycle, type Hirn. The “primary” circuit uses thermal storage, allowing a delay between the power generation in rapport with the solar energy capture.
We study the case of parabolic trough solar collector using silicone oil in the “primary” circuit, which limits the peak temperature below 400 ☌. ⁎ e-mail: paper analyzes the “secondary” circuit (for thermodynamic conversion) of a Concentrated Solar Power (CSP) plant with thermodynamic cycle, whose mirrors field supplies a thermal power, averaged over a sunny day, of about 100 MW heat. Power Engineering Faculty, University Politehnica of Bucharest, Splaiul Independentei, 313, Bucharest 060042, Romania Victor-Eduard Cenuşă *, George Darie, Diana Tuţică, Mihaela Norişor, Florin-Niculae Alexe and Chiriţă-Mihai Muşat