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The current research is conducted with the aim of investigating a multi-generation energy system (MGS) for electricity, hydrogen, heating, cooling and hot water production using SRC, Kalina cycle and proton exchange membrane (PEM) electrolysis as the main subsystems. The thermodynamic analysis namely energy, exergy, and exergo-economic examination carried out. Analysis for each component is done after thermodynamic modeling. The exergy investigation showed that regenerator 2, vapor generator and condenser had the highest exergy destruction rate, respectively. A comparison was made between the current work and the basic system, and according to the results obtained, the system's ability to produce electricity, cooling, heating and hydrogen are calculated as 782 kW, 173.2 kW, 2265 kW and 0.01613 mol/day, respectively. Also, the energy and exergy efficiency of the proposed system increased by 3.13% and 5.37%, respectively. The optimization based on PSO method was carried out. The results of PSO optimization represented that in the case exergy destruction and exergy efficiency will be the optimization target these two outputs can reach the value of 2208 kW and 9.84%, while optimization based on exergy efficiency and production cost rate will lead to 9.86% and 166.6 $/h. • Simulation a CSP based system to design a poly-generation energy system. • Using PEM electrolyzer to generate hydrogen as an energy storage media. • The exergy efficiency of introduced system is 3.13% higher than basic system. • The output power of new plant is 1.54 MW higher than basic cycle. [ABSTRACT FROM AUTHOR]

The article focuses on diagnosing performance issues in air condensers at Elkem's plant. Topics include identifying fouling as the primary cause of heat transfer loss, the impact of undersized condensate lines, and the importance of thorough plant testing and thermal surveys in resolving condenser inefficiencies.

One of the new methods for ensuring that the battery in a thermal energy storage system is kept at the proper temperature is the heat pipe-based Thermal Management System (TMS). In this study, the improvement of cooling performance of a heat pipe based TMS is examined through the variation of condenser section length of heat pipes in an array. The TMSs with an array of heat pipes with different condenser section lengths are considered. The system performances are evaluated using a validated numerical method. The results show that a heat pipe-based TMS provides the best cooling performance when a wavy-like variation is employed and when the condenser section length of the last set of the heat pipe in the array is greater than that of the penultimate set. The maximum cell temperature and the maximum temperature difference within the cell of this TMS are decreased by 4.2 K and 1.1 K, respectively, when compared to the typical heat pipe based TMS with zero variation in its condenser section length. Conclusively, the strategy offers an improvement in the thermal uniformity for all the TMS cases. [ABSTRACT FROM AUTHOR]

This study focused on the optimal production feasibility of distilled water from the concentrate of a reverse osmosis device using an evacuated tube collector basin solar still. The characteristic effect of the device's condenser on the produced freshwater volume was evaluated to improve the performance of the solar still, resulting in productivity enhancement. The direct contact of two faces of the cubic condenser with water vapor results in the doubling of the effective surface area. However, freshwater production was decreased by eight times compared to the case where only one face of the condenser is in contact with water vapor. This reduction was attributed to the shorter path taken by the condensed droplets. At the bottom of the evacuated tube collector, some building mineral pumice was used to prevent the formation of large water vapor bubbles. According to this methodology, the average daily production of distilled water from the concentrate of the reverse osmosis unit with a total dissolved solids of 15200 ppm was achieved at 4.58 ± 0.12 L. m − 2 . The quality of produced distilled water revealed that solar desalination using an evacuated tube collector basin solar still can be a notable and economical solution for the concentrate treatment of reverse osmosis. [Display omitted] • The longer the droplets' path on the glass condenser's surface, the higher the freshwater production rate. • The movement path of liquid droplets to the outlet with angles of θ = 0 ° is equal to the length of the condenser. • The ETC has the potential to transfer part of the salty water by the rise of large water vapor bubbles. • Building mineral pumice can be used to prevent the formation of large vapor bubbles at the bottom of the ETC. • Modified ETC basin solar still can be a considerable solution for the desalination of RO concentrate. [ABSTRACT FROM AUTHOR]