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Publication Title | World Overview of the Organic Rankine Cycle Market

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b Politecnico di Milano, via Lambruschini 4, 20156 Milano, Italy
Available online at ScienceDirect
EnerSgycPireocnedica e00D(20i1r7e) 0c00t–000 AvAavialailbalbeleonolninlieneatawt www.s.csiceinecnecdeidreircetc.ct.ocmom
Energy Procedia 00 (2017) 000–000
EnEenregrygyPrPorcoecdeidaia0012(290(1270)1070) 02–0900 IV International Seminar on ORC Power Systems, ORC2017
13-15 September 2017, Milano, Italy
IV International Seminar on ORC Power Systems, ORC2017 13-15 September 2017, Milano, Italy
A World Overview of the Organic Rankine Cycle Market The 15th International Symposium on District Heating and Cooling
A World Overview of the Organic Rankine Cycle Market
Thomas Tartièrea,*, Marco Astolfib
Assessing the fTehaosmibaislTitayrtioèfreu*s,iMngarcthoeAshtoelafit demand-outdoor
a, b
aPanevo, #606-505 Seymour St, Vancouver, BC, V6B3H7, Canada
temperature funcb Politecnico di Milano, via Lambruschini 4, 20156 Milano, Italy
I. Andrića,b,c*, A. Pinaa, P. Ferrãoa, J. Fournierb., B. Lacarrièrec, O. Le Correc AbsTtrhIaeNc+tOCregnatenrifcorRInannokvaintieon,CTyechlneol(oOgyRaCnd)PtoelcichynRoelsoeagrychi-sInastitruetloiaSbupleriworaTyécntoicoc,oAnv.vReorvtishcoeaPtaisin1t,o10e4l9e-0c0tr1icListybo,ne,Pitohreturgaflor
t demand forecast
o, #
renewable energy applications (biomass, geothermal, solar), or industrial energy efficiency. ORC systems range
bVeolia Recherche & Innovation, 291 Avenue Dreyfous Daniel, 78520 Limay, France
fromThme iOcrrog-asnciacleR(anfkeiwnekWCy)cfloer(dOoRmCe)stitcecchongoelnoegryatiosnatorellairagbelemwualtyi-mtoegcaownavtetrtgehoetahterimntaol peloewcterricpitlya,ntesi.thAefrtefroar srelonwewianbitliealesnteargt,ythaepptelcichantoiolongs y(bhiaosmeaxspse, rgienocthederma aml,ucsholsatrr)o, nogrerindeuvsetrloiaplmeennetrgsyinceefftihcieen1c9y7.0sO, RmCainsylystbeemcsaursaengoef efrcomnomicroi-nsceanletiv(easfeawndkWsu)rgfionrgdoenmeersgtyicpcroicgesn.erHatoiownevtoerl,arthge mlaurgltei-mraengaewoatft agpepoltihceartmioanls,pomwaenrupfalacntutsr.erAs,ftearnda
Département Systèmes Énergétiques et Environnement - IMT Atlantique, 4 rue Alfred Kastler, 44300 Nantes, France
sclouwntirnieitsiaml asktaerti,t thhaerdtetcohtnraoclokgtyhehaesvoelxuptieornieonfcethdeatemchuncholostgryonogverr dtheevewloprlmde. nt since the 1970s, mainly because of Abstract
ecoInofomrimcaitniocnenatibvoeust amndoresutrhgaing7e0n0erpgryojepcritcsehs.asHboeweenvecro,lltehcetelda,rgcerorsasn-vgaelidoaftianpgpl2ic7atmioannsu, fmacatunruefrasc’tudraetras, waintdh cpouubnlitcraietisomnsakaneditthesatridmtontireasc,kaltlhoeweivnoglutotiobnuioldf thetfeicrshtnroelloiagbyleovaenrdthexehwaoursltdiv.e database of ORC plants. As a result,
District heating networks are commonly addressed in the literature as one of the most effective solutions for decreasing the
thisInwforrmkaatinoanlysaebsouthtemeovroelutthiaon 7o0f0thperoOjeRcCtsmhasrkebteeonvecrotlhlectyeeda,rsc,rowssit-hvatloidatyin2g.727GWmanouffcauctmuruelarste’ddaintastawlliethd greenhouse gas emissions from the building sector. These systems require high investments which are returned through the heat
pcaupbaliciatyti.onAsfatenrd tienstrtiomduocninegs, athlleowOinRgCtotbeuchilndotlhoegyfirswtirtehliablfeoacnuds eoxnhauitstivheisdtoartyab, awseoorkfiOngRCprpinlacniptsl.eAasnadremsualitn, sales. Due to the changed climate conditions and building renovation policies, heat demand in the future could decrease,
tahpipsliwcaotrikonasn,athlyesecsurtrheentesvtoatleutaionnd othfethnewOtRreCndmsaorfkethteoOveRrCthmeayrekaertsa,rweipthrestoendtaeyd2w.7ithGaWdeotafilceudmaunlaltyesdisinosftaelalcehd prolonging the investment return period.
caappaliciatyti.onA. fTtehre einvtorloudtuiocninogf ethaceh OmRarCketeicshdnioslcougsysedwcitohnsaidefroincugsthoenprietsenhtisintosrtayl,lewd ocrakpiancgityp,rhinisctioprliecaal nddatamanind The main scope of this paper is to assess the feasibility of using the heat demand – outdoor temperature function for heat demand
ampapclrioca-eticoonnso, mthiec ctruernrednst. sFtiantaellayn,dfuthtuerenepwerstrpeencdtisvoesf tahnedOgRroCwtmhaprkoetetnatriealporfestehneteOdRwCitmh arkdetaairledevanalaulyatseisd,owf ietahcha forecast. The district of Alvalade, located in Lisbon (Portugal), was used as a case study. The district is consisted of 665
aspbepucliilidcaailntfgioscnut.hsTatohnveaWeryvaoisnltuebtiHotnheaoctofRneseatcrcuohcvtmeioraynrkappertpiloiisdcadatinisodcnutsy.speodlocgoyn. sTihdreereinwgetahtehepr rsecsenatrionst(alollwed, mcaepdiaucmit,yh, ihgihs)toarnidcatlhdreaetadiasntrdict mraecnroov-aetcionoscmenicartiroesnwdse.reFidneavlellyo,pfeudtu(srheaplleorws,peinctteirvmeesdaiantde, gdreoewp)t.hTpooteesntitmialteofthteherOroRr, Cobmtaainrekdethaeraet deevmalaunadtevda,luweisthweare spceocmiaplarfeodcuwsitohnreWsualtstefroHmeatdRyencamovicerhyeatpdpelmicantdiomnso.del,previouslydevelopedandvalidatedbytheauthors.
The results showed that when only weather change is considered, the margin of error could be acceptable for some applications © 2017 The Authors. Published by Elsevier Ltd.
© 2017 The Authors. Published by Elsevier Ltd.
(the error in annual demand was lower than 20% for all weather scenarios considered). However, after introducing renovation Peer-review under responsibility of the scientific committee of the IV International Seminar on ORC Power
Peer-review under responsibility of the scientific committee of the IV International Seminar on ORC Power Systems.
scenarios, the error value increased up to 59.5% (depending on the weather and renovation scenarios combination considered).
Sys©tem20s1. 7 The Authors. Published by Elsevier Ltd.
The value of slope coefficient increased on average within the range of 3.8% up to 8% per decade, that corresponds to the
KeyPwoeredrs-:rOeRvCie;wRanukninde;rgeroetshperomnasli;bhielaityrecofvetryh;ebisocmieasnst;imfiacrkceto;mmittee of the IV International Seminar on ORC Power decrease in the number of heating hours of 22-139h during the heating season (depending on the combination of weather and
renovation scenarios considered). On the other hand, function intercept increased for 7.8-12.7% per decade (depending on the
Keywords:ORC; Rankine; geothermal; heat recovery; biomass; market;
coupled scenarios). The values suggested could be used to modify the function parameters for the scenarios considered, and improve the accuracy of heat demand estimations.
* Corresponding author. Tel.: +1-604-349-8750.
© 2017 The Authors. Published by Elsevier Ltd.
E-mail address:
Peer-review under responsibility of the Scientific Committee of The 15th International Symposium on District Heating and * Corresponding author. Tel.: +1-604-349-8750.
1876E-6m1a0i2l ©ad2d0r1es7s:TtheoAmuatsh.toarst.iePrue@bligsmheadilb.cyomElsevier Ltd.
Peer-review under responsibility of the scientific committee of the IV International Seminar on ORC Power Systems. Keywords: Heat demand; Forecast; Climate change
1876-6102© 2017 The Authors. Published by Elsevier Ltd.
Peer-review under responsibility of the scientific committee of the IV International Seminar on ORC Power Systems.
1876-6102 © 2017 The Authors. Published by Elsevier Ltd.
Peer-review under responsibility of the Scientific Committee of The 15th International Symposium on District Heating and Cooling.
1876-6102 © 2017 The Authors. Published by Elsevier Ltd.
Peer-review under responsibility of the scientific committee of the IV International Seminar on ORC Power Systems. 10.1016/j.egypro.2017.09.159

Image | World Overview of the Organic Rankine Cycle Market

MicroAD: This research and pdf compilation was sponsored Infinity Turbine Turn your waste heat into energy to save on grid based power or sell back to the grid Organic Rankine Cycle utilizes waste heat to make power. Infinity Turbine Waste Heat to Power Solutions

RADIAL-OUTFLOW-TURBINE: In a radial outflow turbine the organic fluid enters the disk axially in its center and expands radially through a series of stages mounted on the single disk. At the discharge of the last rotor row the flow passes through a radial diffuser and is then conveyed to the recuperator and or condensa- tion section of the system, through the discharge volute. In the early 20th century, Parsons Siemens and Ljungstrom developed the first steam based radial outflow turbines. These early model turbines required a large number of stages. For very high enthalpy drop fluids, such as steam, a single-disk/multi stage configuration was therefore deemed not suitable due to the very large diameter disk necessary to accommodate all the required stages. No further development of the radial outflow turbines oc- curred, as they were phased out for steam applications by axial turbines.

The Geothermal Radial Outflow Turbine: An innovative turbine configuration for geothermal applica- tions was developed by the Italian turbine manufacturer EXERGY. The technology, known as the organic radial outflow turbine was designed, engineered, manufactured and tested in Italy. A 1 MWe geothermal organic Rankine cycle (ORC) equipped with the EXERGY radial outflow turbine has been in operation since early 2013. The radial outflow turbine is a new type of turbine that have the potential to increase the geothermal binary power plants ef- ficiency by increasing the turbine efficiency. The operational results has been positive and demonstrates the viability of the technology and the possibility to develop it for bigger sizes.

Preliminary Design and Off-Design Analysis of a Radial Outflow Turbine for Organic Rankine Cycles: Recently, the advantages of radial outflow turbines have been outstanding in various operating conditions of the organic Rankine cycle. However, there are only a few studies of such turbines, and information on the design procedure is insufficient. The turbine target performance could be achieved by fine-tuning the blade angle of the nozzle exit. In addition, performance evaluation of the turbine against off-design conditions was performed. Ranges of velocity ratio, loading coefficient, and flow coefficient that can expect high efficiency were proposed through the off-design analysis of the turbine.

Study on applicability of radial-outflow turbine type for 3 MW WHR organic Rankine cycle: The article presents the results of study on the reasonability of using radial-outflow turbines in ORC. Peculiarities of radial-outflow turbine design utilizing modern design technologies and application to ORC was considered in the first part of the paper. For this particular cycle design, turbines of radial-outflow type were chosen. Their application enables the increase of mechanical output power by 11 percent compared to original radial-inflow turbines.

LOSS GENERATION IN RADIAL OUTFLOW STEAM TURBINE CASCADES: Small high-speed technology based radial outflow steam turbines are characterised by ultra-low aspect ratios, which can lead to rapidly growing secondary losses. The prelimi- nary evaluation of turbine performance is usually based on axial turbine loss predictions, which can be a source of error. The main objectives of this work are to find out how the losses are generated in radial outflow turbines when the aspect ratio is markedly below unity and how accurately axial turbine loss models can predict the trends. To achieve these objectives, a radial outflow turbine cascade having a blade shape and aspect ratios comparable with a prototype machine is examined. As a result of the study, it is suggested that for the examined radial outflow cascade the axial turbine loss correlations can predict the trends reasonably well. The rapidly increasing secondary losses are connected to the merging of secondary structures and also incidence at off-design.

PRELIMINARY DESIGN OF RADIAL-INFLOW TURBINES FOR ORGANIC RANKINE CYCLE POWER SYSTEMS CONSIDERING PERFORMANCE AND MANUFACTURABILITY ASPECTS: In order to make organic Rankine cycle power systems economically feasible, it is essential to find a reasonable trade-off between the performance and the initial cost of system. In order to show its relevance in a practical application, the method is applied to two radial-inflow turbines cases: a state-of-the-art turbine using air and a turbine using the working fluid Novec 649 for a heat recovery application. The results indicate that there exists a trade-off between turbine performance and manufacturability, and that it is possible to develop turbine solutions with similar values of efficiency with improved manufacturability indicator by up to 14 to 15 percent.

DESIGN AND FLOW ANALYSIS OF RADIAL AND MIXED FLOW TURBINE VOLUTES: Radial and mixed flow turbines which are an important component of a turbocharger consist essentially of a volute, a rotor and a diffuser. Vaneless volute turbines, which have reasonable performance and low cost, are the most used in turbochargers for automotive engines. Care has to be done in the design of the volute, whose function is to convert a part of the engine exhaust gas energy into kinetic energy and direct the flow towards the rotor inlet at an appropriate flow angle with reduced losses.

An Exploration of Radial Flow on a Rotating Blade in Retreating Blade Stall: The nature of radial flow during retreating blade stall on a two-bladed teetering rotor with cyclic pitch variation is investigated using laser sheet visualization and particle image velocimetry in a low-speed wind tunnel. The velocity field above the retreating blade at 270◦ azimuth shows the expected development of a radially directed jet layer close to the blade surface in the otherwise separated flow region. This jet is observed to break up into discrete structures, limiting the spanwise growth of the radial velocity in the jet layer. The discrete structures are shown to derive their vorticity from the “radial jet” layer near the surface, rather than from the freestream at the edge of the separated region. The separation line determined using velocity data shows the expected spanwise variation. The results of this study are also correlated in a limited range of extrapolation to the phenomena encountered on a full-scale horizontal axis wind turbine in yaw.

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