Integrated ORC-Adsorption cycle: A first and second law analysis of potential configurations

Roumpedakis, Tryfon C.; Christou, Thomas; Monokrousou, Evropi; Braimakis, Konstantinos; Karellas, Sotiriοs

doi:10.1016/j.energy.2019.04.069

Cited by 31 publications

(7 citation statements)

References 36 publications

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“…On the other hand, in an ORC electricity generation plant, replacing the VCC with ABS or ADS equipment allows cold generation by cogeneration [168]. In this sense, the results show a higher exergetic efficiency for the ORC-ADS equipment because the residual heat from the ORC feeds the ADS equipment [169]. Evaluation of the ORC-ABS configuration for cooling agricultural soil with a capacity of 3.5 kW and 7 kW allowed a payback of 9.4 years with the highest capacity [170].…”

Section: Cooling Heat/electricity Generation (Ch/e)mentioning

confidence: 89%

Review of Polygeneration Schemes with Solar Cooling Technologies and Potential Industrial Applications

et al. 2021

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The trend to reduce CO2 emissions in cooling processes has made it possible to increase the alternatives for integrating solar energy with thermal equipment whose viability depends on its adaptation to polygeneration schemes. Despite the enormous potential offered by the industry for cooling and heating processes, solar cooling technologies (SCT) have been explored in a limited way in the industrial sector. This work discusses the potential applications of industrial SCTs and classifies hybrid polygeneration schemes based on supplying cold, heat, electricity, and desalination of water; summarizes the leading SCTs, and details the main indicators of polygeneration configurations in terms of reductions on primary energy consumption and payback times. To achieve an energy transition in refrigeration processes, the scenarios with the most significant potential are: the food manufacturing industry (water immersion and crystallization processes), the beverage industry (fermentation and storage processes), and the mining industry (underground air conditioning).

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Section: Cooling Heat/electricity Generation (Ch/e)mentioning

confidence: 89%

Review of Polygeneration Schemes with Solar Cooling Technologies and Potential Industrial Applications

et al. 2021

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“…Another topic that is widely investigated is the performance of solar cogeneration (combined heat and power-CHP) and trigeneration (combined cooling heat and power-CCHP) systems including ORCs, which come in different varieties, depending on the employed cooling technology, which can be (among different solutions) a vapor compression cycle (VCC) [13], an absorption chiller [14] an adsorption chiller [15] or an ejector-based cycle [16] in different configurations. Some indicative examples are presented in the following.…”

Section: Introductionmentioning

confidence: 99%

Techno-Economic Optimization of Medium Temperature Solar-Driven Subcritical Organic Rankine Cycle

Roumpedakis

Fostieris

Braimakis

et al. 2021

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The present work focuses on the techno-economic assessment and multi-objective genetic algorithm optimization of small-scale (40 kWth input), solar Organic Rankine Cycle (ORC) systems driven by medium-to-high temperature (up to 210 °C) parabolic dish (PDC) and trough (PTC) collectors. The ORCs are designed to maximize their nominal thermal efficiency for several natural hydrocarbon working fluids. The optimization variables are the solar field area and storage tank capacity, with the goal of minimizing the levelized cost of produced electricity (LCoE) and maximizing the annual solar conversion efficiency. The lowest LCOE (0.34 €/kWh) was obtained in Athens for a high solar field area and low storage tank capacity. Meanwhile, the maximum annual solar conversion efficiencies (10.5–11%) were obtained in northern cities (e.g., Brussels) at lower solar field locations. While PTCs and PDCs result in similar efficiencies, the use of PTCs is more cost-effective. Among the working fluids, Cyclopentane and Cyclohexane exhibited the best performance, owing to their high critical temperatures. Notably, the systems could be more profitable at higher system sizes, as indicated by the 6% LCoE decrease of the solar ORC in Athens when the nominal heat input was increased to 80 kWth.

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“…organic Rankine cycle (ORC) system, uniquely suited for WHR and power generation from low and high temperature heat sources, is regarded as one of the most promising technologies [12,13]. With respect to ORC system researches, efforts are mainly focused on three topics: working fluid (WF) selection [14,15], heat and cold source (e.g., solar, industrial waste heat, geothermal, seawater and LNG cold) [16,17] and system configuration [18,19].…”

Section: Introductionmentioning

confidence: 99%

Multi-Objective Thermo-Economic Optimization of a Combined Organic Rankine Cycle (ORC) System Based on Waste Heat of Dual Fuel Marine Engine and LNG Cold Energy Recovery

et al. 2020

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In this paper, a combined organic Rankine cycle (ORC) system that can effectively utilize the cold energy of Liquefied Nature Gas (LNG) and the waste heat of dual fuel (DF) marine engine was proposed. Particularly, the engine exhaust gas and the jacket cooling water of the DF marine engine were used as heat sources. Firstly, a thorough assessment of thermo-economic performance was conducted for the combined ORC system using 11 environmentally friendly working fluids (WFs). Afterwards, the effects of evaporation and condensation pressures on the net output work, energy efficiency, exergy efficiency, total investment cost and payback period were examined. Furthermore, the thermo-economic performances of the ORC system were optimized via multi-objective optimization with a genetic algorithm. Finally, exergy destructions and investment costs of each component under the optimal operating conditions were analyzed to make suggestions for further improvement. The results show that R1150-R1234yf-R600a and R170-R1270-R152a are the two most promising WF combinations. The exergy destruction of the combined ORC system mainly exists in heat exchangers. Through WF optimization, the exergy destruction in the intermediate heat exchanger was reduced by 18.99%. The proportion of expanders investment cost could be greater than 50% and the payback period of the combined ORC system varies in the range of 7.68–9.43 years. This study demonstrated that the selection of WF and the optimization of operating conditions had important potential to improve thermo-economic performances of ORC systems.

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Integrated ORC-Adsorption cycle: A first and second law analysis of potential configurations

Cited by 31 publications

References 36 publications

Review of Polygeneration Schemes with Solar Cooling Technologies and Potential Industrial Applications

Review of Polygeneration Schemes with Solar Cooling Technologies and Potential Industrial Applications

Techno-Economic Optimization of Medium Temperature Solar-Driven Subcritical Organic Rankine Cycle

Multi-Objective Thermo-Economic Optimization of a Combined Organic Rankine Cycle (ORC) System Based on Waste Heat of Dual Fuel Marine Engine and LNG Cold Energy Recovery

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