Advanced Exergo-Environmental Assessments of an Organic Rankine Cycle as Waste Heat Recovery System from a Natural Gas Engine
نویسندگان
چکیده
This paper aims to present the real improvement opportunities of a simple organic Rankine cycle (ORC) as waste heat recovery system (WHRS) from exhaust gases natural gas engine using toluene working fluid, based on exergy and environmental point view. From energy balances, advanced exergetic analysis was developed determine irreversibilities for improvement. Since traditional exergo-environmental analysis, it found that component with greatest potential impact associated (bF = 0.067 mPts/MJ) per unit (ḂD 8.729 mPts/h) condenser, while exergy-environmental fraction presented in turbine (52.51%) pump-2 (21.12%). The showed is more operational behavior components, 75.33% impacts being endogenous nature, showing are generated reduced magnitude through interactions between components. However, identified much ITC 1 could be reduced, 81.3% these avoidable. Finally, sensitivity results revealed steel material components least impact.
منابع مشابه
Increasing waste heat recovery from an internal combustion engine by a dual-loop non-organic Rankine Cycle
This research proposes the combination of a dual-loop non-organic Rankine cycle (DNORC) with an internal combustion engine to increase the output power of the recovery system by focusing on the increase in the energy input and system efficiency. In doing so, it investigates the strategy of increasing the mean effective temperature of heat addition in the high-temperature Rankine cycle (HTRC) (t...
متن کاملDynamic modeling and simulation of an Organic Rankine Cycle (ORC) system for waste heat recovery
The paper proposes two alternative approaches for the design of a dynamic model for an Organic Rankine Cycle (ORC) to be used for the design of control and diagnostics systems. The model has been developed in Modelica language and simulated with Dymola. The two modeling approaches, based on moving boundary and discretization techniques, are compared in terms of accuracy, complexity and simulati...
متن کاملAnalyzing the Performance of a Dual Loop Organic Rankine Cycle System for Waste Heat Recovery of a Heavy-Duty Compressed Natural Gas Engine
A dual loop organic Rankine cycle (DORC) system is designed to recover waste heat from a heavy-duty compressed natural gas engine (CNGE), and the performance of the DORC–CNGE combined system is simulated and discussed. The DORC system includes high-temperature (HT) and low-temperature (LT) cycles. The HT cycle recovers energy from the exhaust gas emitted by the engine, whereas the LT cycle reco...
متن کاملWaste Heat Recovery of a PEMFC System by Using Organic Rankine Cycle
In this study, two systems are brought forward to recover the waste heat of a proton exchange membrane fuel cell (PEMFC), which are named the organic Rankine cycle (ORC), and heat pump (HP) combined organic Rankine cycle (HPORC). The performances of both systems are simulated on the platform of MATLAB with R123, R245fa, R134a, water, and ethanol being selected as the working fluid, respectively...
متن کاملOptimal Green Facility Planning - Implementation of Organic Rankine Cycle System for Factory Waste Heat Recovery
As global industry developed rapidly, the energy demand also rises simultaneously. In the production process, there’s a lot of energy consumed in the process. Formally, the energy used in generating the heat in the production process. In the total energy consumption, 40% of the heat was used in process heat, mechanical work, chemical energy and electricity. The remaining 50% were released into ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Energies
سال: 2023
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en16072975