Luo Jun-wei, Luo Xiang-long, Zheng Xiao-sheng, et al. A Simulation Study on Heat Exchanger of Organic Rankine Cycle[J]. 2022, 39(4): 128-134.DOI: 10.12052/gdutxb.200167.
A Simulation Study on Heat Exchanger of Organic Rankine Cycle
Organic Rankine Cycle have numerous potential applications in thermal power generation at medium-to-low temperatures. Heat exchanger is an important part of ORC
but the research on the off-design conditions performance of the heat exchanger is not enough. A simulation modeling approach of the heat exchanger under off-design conditions is proposed in this paper and the simulation model of the heat exchanger is established and verified by experiments. According to the verification
the maximum error of heat transfer quantity between simulation and experiment of evaporator and condenser is 3.74% and 3.20% respectively. On the basis of the model validation
the performance of the heat exchanger in ORC are evaluated
the off-design conditions performance and the thermal transfer area migration regulations of the heat exchanger are obtained
and the equivalent heat transfer coefficient of the heat exchanger is defined and obtained
which provides guidelines for the design of the heat exchanger and the application of the device in ORC.
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references
TU J P, HUANG J K, LUO X L, et al . An experimental study of axial uniform boiling heat transfer characteristics of r245fa in horizontal smooth tube [J ] . Journal of Guangdong University of Technology, 2020, 37(6): 71-77.
CAMPANA F, BIANCHI M, BRANCHINI L, et al. ORC waste heat recovery in European energy intensive industries: energy and GHG savings[J]. Energy Conversion and Management, 2013, 76: 244-252
QIU G F, LUO X L, CHEN J Y, et al . An off-design optimization of liquid separation condenser-based Organic Rankine Cycle under different ambient temperature [J ] . Journal of Guangdong University of Technology, 2019, 36(6): 99-104.
PARK B-S, USMAN M, IMRAN M, et al. Review of Organic Rankine Cycle experimental data trends[J]. Energy Conversion and Management, 2018, 173: 679-691
CHEN Q C, XU J L, CHEN H X. A new design method for Organic Rankine Cycles with constraint of inlet and outlet heat carrier fluid temperatures coupling with the heat source[J]. Applied Energy, 2012, 98: 562-573
CHEN J Y, ZHENG X S, GUO G Q, et al. A flexible and multi-functional organic Rankine cycle system: preliminary experimental study and advanced exergy analysis[J]. Energy Conversion and Management, 2019, 187: 339-355
LECOMPTE S, HUISSEUNE H, VAN DEN BROEK M, et al. Part load based thermo-economic optimization of the Organic Rankine Cycle (ORC) applied to a combined heat and power (CHP) system[J]. Applied Energy, 2013, 111: 871-881
WALRAVEN D, LAENEN B, D’HAESELEER W. Economic system optimization of air-cooled organic Rankine cycles powered by low-temperature geothermal heat sources[J]. Energy, 2015, 80: 104-113
ZHANG C, LIU C, WANG S K, et al. Thermo-economic comparison of subcritical organic Rankine cycle based on different heat exchanger configurations[J]. Energy, 2017, 123: 728-741
GMEZ ALEZ S L, BOMBARDA P, INVERNIZZI C M, et al. Evaluation of ORC modules performance adopting commercial plastic heat exchangers[J]. Applied Energy, 2015, 154: 882-890
JAFARI A, YANG C Y, CHANG C C. Optimization of heat exchanger size of a 10 kW organic Rankine Cycle system[J]. Energy Procedia, 2017, 129: 851-858
LEE Y R, KUO C R, LIU C H, et al. Response of a 50 kW organic Rankine Cycle system subject to influence of evaporators[J]. International Conference on Applied Energy, ICAE2014, 2014, 61: 635-638
ZHU K D, CEHN Y, CHEN J Y, et al . Thermodynamic performance evaluation of liquid-vapor separation plate condenser [J ] . Journal of Guangdong University of Technology, 2019, 36(5): 48-55.
LIANG Z Y, CHEN J Y, CHEN Y, et al . A study of the variable performance of multi-path liquid-vapor separation plate condenser [J ] . Journal of Guangdong University of Technology, 2022, 39(1): 99-106.
GARCÍA-CASCALES J R, VERA-GARCÍA F, CORBERÁN-SALVADOR J M, et al . Assessment of boiling and condensation heat transfer correlations in the modelling of plate heat exchangers [J ] . International Journal of Refrigeration, 2007, 30(6): 1029-1041.
AMALFI R L, VAKILI-FARAHANI F, THOME J R. Flow boiling and frictional pressure gradients in plate heat exchangers. Part 1: review and experimental database[J]. International Journal of Refrigeration, 2016, 61: 166-184
AYUB Z H. Plate heat exchanger literature survey and new heat transfer and pressure drop correlations for refrigerant evaporators [J]. Heat Transfer Engineering, 2003, 24(5): 3-16.
DESIDERI A, ZHANG J, KRN M R, et al. An experimental analysis of flow boiling and pressure drop in a brazed plate heat exchanger for organic Rankine Cycle power systems[J]. International Journal of Heat and Mass Transfer, 2017, 113: 6-21
LONGO G A, RIGHETTI G, ZILIO C. A new computational procedure for refrigerant condensation inside herringbone-type Brazed Plate Heat Exchangers[J]. International Journal of Heat and Mass Transfer, 2015, 82: 530-536
ZHENG X S, LUO J W, LU P, et al . An experimental study of zeotropic-mixture organic rankine cycle system utilizing r1234ze (e)/r245fa [J ] . Journal of Guangdong University of Technology, 2020, 37(3): 114-120.
ZHENG X S, LUO X L, LUO J W, et al. Experimental investigation of operation behavior of plate heat exchangers and their influences on organic Rankine Cycle performance[J]. Energy Conversion and Management, 2020, 207: 112528