Energy And Exergy Analysis of Organic Rankine Cycle with Parabolic Solar Collectors

Çelik, Serpil; Kabul, Ahmet

doi:10.5505/pajes.2018.70707

Cited by 2 publications

(2 citation statements)

References 10 publications

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“…In order to find the COP value of the feasibility system, 𝑄 = 𝑚. 𝑐. ∆𝑇 (𝑘𝐽) (7) In the most general terms, from the data sheets given by the manufacturer of the Gas Motor and Multi ABS Chiller, which we have chosen for the trigeneration system that we have made the feasibility of respectively, ➢ Jacket temperature of 1203 kW Gas Motor, ➢ It has been given that useful heat energy can be obtained from the exhaust gases [18], which are released as 421℃ with the operation of the 985 kW gas motor. ➢ For the Multi ABS Chiller, it is stated that 10.360 kg/h of waste heat (flue gas-exhaust gases) can circulate in the entire system per hour.…”

Section: Table 6 Exergic and Energy Analysis Findings In Case The Fea...mentioning

confidence: 99%

“…Many academic scientific articles have been published and studies have been conducted on energy and exergy analysis. As an example of these; Çelik S. and Kabul A., [7] carried out energy and exergy analyses by considering the modeling of a solar energy sourced cogeneration system in their study. It was determined that the collector efficiency of the examined system was 21%, and the thermal efficiency of the ORC system was 6%.…”

Section: Introductionmentioning

confidence: 99%

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Exergy and Energy Analysis for a Feasibility Trigeneration System at Kocaeli University Umuttepe Campus

Kadıoğlu

Altınay

2022

Preprint

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In this study, a feasibility of the trigeneration system, which is one of the on-site energy production methods, was prepared for Kocaeli University Umuttepe Campus, and energy and exergy analyses were made for each point of the system and exergy destruction in the lines was found. It is aimed to be able to produce the energy, which is the most basic indicator of sustainability, at the closest point to the consumption place, thus keeping the distribution and transmission losses at a minimum level and dimensioning the designed system. The key point of the gains, losses and efficiency analyses in the lines is presented with engineering calculations based on thermodynamic proofs, exergetic efficiency and losses, the energy and balance equations of the whole system, and the feasibility of the entire trigeneration system, including mathematical modeling, energy analysis, the whole system in II. Law Efficiency, COP, Thermal efficiency were calculated. The seasonal working methods were shown by the numerical analyses prepared in the summer and winter working disciplines of the system effectively and the seasonal working methods were found and the working conditions and operating load values suitable for the current season of the system were found. In addition, by performing separate mathematical models for summer and winter mode, in the light of the above-mentioned technical studies, both the reduction in the energy production costs of the country thanks to the energy that the university will produce in-house, the reduction of foreign dependency in energy demand, a feasibility report ready for investors and an academic. In this sense, it is aimed to present a ready-to-use design of a medium-sized power plant that will set an example for trigeneration studies. From the designed system; 66% exergic efficiency in winter, thermal efficiency 0.87411 with 2.05 MW thermal capacity, 63% exergic efficiency in summer, COP 0.82 and 1.5 MW cooling capacity, and 2.02 MWe instantaneous electrical power was found in summer and winter. The results have shown us that the designed system can be a facility that is open to development and worth establishing with the results obtained technically. Based on the current applications made so far, it has been determined that there are similar results between the studies in the literature and the exergy and energy analyses of the trigeneration system, which we have made feasibility in Umuttepe campus and are close to the findings obtained in the calculations in the literature.

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Section: Table 6 Exergic and Energy Analysis Findings In Case The Fea...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Exergy and Energy Analysis for a Feasibility Trigeneration System at Kocaeli University Umuttepe Campus

Kadıoğlu

Altınay

2022

Preprint

View full text Add to dashboard Cite

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Exergy–energy analysis for a feasibility trigeneration system at Kocaeli University Umuttepe Campus

Kadıoğlu

Altınay

2023

Applied Rheology

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In this study, the feasibility of the trigeneration system, which is one of the on-site energy production methods, was determined for Kocaeli University Umuttepe Campus, exergy and energy analyses were made for each point of the system and exergy destruction in the lines was found. The key point of the gains, losses, and efficiency analyses in the lines are presented with engineering solutions and thermodynamic proofs. The seasonal mathematical models covering the whole of the feasibility of the trigeneration system were carried out and the energy and equilibrium equations of the entire system were established. In addition, energy and exergy analysis, 2nd law efficiency, coefficient of performance (COP), and thermal efficiency were calculated for all the systems. The seasonal numerical analyses of the system have been prepared so that it can work effectively in two different working disciplines separately for summer and winter seasons. Thanks to these numerical analyses that are mentioned, the seasonal exergic destructions of the system are found, seasonal working methods are shown, and working conditions and operating load values suitable for the current season are determined. In addition, in the light of the technical studies mentioned above, both the hourly energy capacities and hourly consumption values that the university will produce after trigeneration have been compared by performing separate mathematical models for summer and winter modes. Thus, it has been aimed to reduce the energy production costs by selling the excess energy to the mains. It is for this reason that it is aimed to reduce the energy production costs of the country, to reduce foreign dependency to meet energy demand, to present both a ready to apply feasibility report to investors and a ready to use design of a medium-sized power plant that will set an example of trigeneration studies in academic terms. In today’s practical applications, it is known that the system efficiency of trigeneration systems can be between 70 and 80%. In the light of the studies, 66% exergic efficiency in winter, thermal efficiency of 0.87411 with 2.05 MW thermal capacity, 63% exergic efficiency in summer, COP of 0.82 with 1.5 MW cooling capacity, and 2.02 MWe instantaneous electrical power was found in summer and winter. It was decided that the system could be a facility that is technically open to development and worth establishing in the light of the exergic and energetic analyses results obtained in this study and the exergic system efficiency comparisons made in the literature. In this study, attention was drawn to the importance of exergy and energy analyses in deciding the installation of a trigeneration system, and it was shown that exergic and energetic analyses played a key role in the verification of decision mechanisms. In order to give an idea for other studies in the literature, it is aimed to draw attention to the need to perform seasonal exergy and energy analyses of the designed or desired trigeneration systems.

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Energy And Exergy Analysis of Organic Rankine Cycle with Parabolic Solar Collectors

Cited by 2 publications

References 10 publications

Exergy and Energy Analysis for a Feasibility Trigeneration System at Kocaeli University Umuttepe Campus

Exergy and Energy Analysis for a Feasibility Trigeneration System at Kocaeli University Umuttepe Campus

Exergy–energy analysis for a feasibility trigeneration system at Kocaeli University Umuttepe Campus

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