An Effective Method for Working Fluid Design of Organic Rankine Cycle
نویسندگان
چکیده
This paper addresses an effective method for the selection and design of optimal working fluids organic Rankine cycle (ORC) based on quantitative fluid rules, aiming to reduce complexity improve calculation efficiency model. In proposed method, critical properties given heat sources are first explored summarized relationship obtained by existing research simulations. Based concept substitution, pure then adopted target mixture solving a modified computer-aided molecular-mixture (CAMD) model ratio r pressure temperature is also strictly constrained ensure better fluid. The component composition are, thus, determined simultaneously. Results showed that both designed have performance than ones rules. targeted enables one achieve at least similar systematic exergy in ORC featuring properties. application finally verified via practical case study.
منابع مشابه
Selection of the optimum prime mover and the working fluid in a regenerative organic rankine cycle
A regenerative organic Rankine cycle (RORC) is modeled and optimized for the use of waste heat recovery from a prime mover (PM). Three PMs including, a diesel engine, a gas engine, and a microturbine are selected in this study. Four refrigerants including isobutane, R123, R134a, and R245fa are selected. The nominal capacity of the PM, PM operating partial load, turbine inlet pressure, condenser...
متن کاملEffect of Working-fluid Mixtures on Organic Rankine Cycle System Performance: Heat Transfer and Cost Analysis
A thermodynamic limitation of single-component working fluids in organic Rankine cycles (ORCs) is the large exergy destruction (and, consequently, useful power loss) associated with evaporation and condensation. Due to their non-isothermal phasechange behaviour, non-azeotropic working-fluid mixtures have shown reduced exergy losses, leading to improved cycle efficiencies and power outputs. Thes...
متن کاملComparative investigation of working fluids for an organic Rankine cycle with geothermal water
In this paper, the thermodynamic investigation on the use of geothermal water (130 ◦C as maximum) for power generation through a basic Rankine has been presented together with obtained main results. Six typical organic working fluids (i.e., R245fa, R141b, R290, R600, R152a, and 134a) were studied with modifying the input pressure and temperature to the turbine. The results show that there are n...
متن کاملNumerical Analysis of an Organic Rankine Cycle with Adjustable Working Fluid Composition, a Volumetric Expander and a Recuperator
Conventional Organic Rankine Cycles (ORCs) using ambient air as their coolant cannot fully utilize the greater temperature differential available to them during the colder months. However, changing the working fluid composition so its boiling temperature matches the ambient temperature as it changes has been shown to have potential to increase year-round electricity generation. Previous researc...
متن کاملSystematic Methods for Working Fluid Selection and the Design, Integration and Control of Organic Rankine Cycles—A Review
Efficient power generation from low to medium grade heat is an important challenge to be addressed to ensure a sustainable energy future. Organic Rankine Cycles (ORCs) constitute an important enabling technology and their research and development has emerged as a very active research field over the past decade. Particular focus areas include working fluid selection and cycle design to achieve e...
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: Processes
سال: 2022
ISSN: ['2227-9717']
DOI: https://doi.org/10.3390/pr10091857