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The Influence of the Heat Source Temperature on the Multivane Expander Output Power in an Organic Rankine Cycle (ORC) System

Kolasiński, Piotr - In: Energies 8 (2015) 5, pp. 3351-3369

Organic Rankine Cycle (ORC) power systems are nowadays an option for local and domestic cogeneration of heat and … heat sources. Designing an ORC system dedicated to heat recovery from such a source is very difficult. Most important … adopted as turbine alternative in small-power ORC systems. However, these machines are complicated and expensive. Vane …

Persistent link: https://www.econbiz.de/10011265954

Exergy Assessment of Recovery Solutions from Dry and Moist Gas Available at Medium Temperature

Ayachi, Fadhel; Ksayer, Elias Boulawz; Neveu, Pierre - In: Energies 5 (2012) 3, pp. 718-730

The Agence Nationale de la Recherche (ANR-EESI) ENERGY ReCOvery from Low Temperature heat sources (ENERCO_LT) project is a waste heat recovery project that aims to reduce energy consumption in industrial gas production sites, by producing electrical power from exothermic processes discharges at...

Persistent link: https://www.econbiz.de/10011030792

Thermo-Economic Evaluation of Organic Rankine Cycles for Geothermal Power Generation Using Zeotropic Mixtures

Heberle, Florian; Brüggemann, Dieter - In: Energies 8 (2015) 3, pp. 2097-2124

We present a thermo-economic evaluation of binary power plants based on the Organic Rankine Cycle (ORC) for geothermal … economics of geothermal ORC systems. Additionally, the use of mixtures increases the spectrum of potential working fluids, which …

Persistent link: https://www.econbiz.de/10011203087

Modeling and Control of a Parallel Waste Heat Recovery System for Euro-VI Heavy-Duty Diesel Engines

Feru, Emanuel; Willems, Frank; Jager, Bram de; … - In: Energies 7 (2014) 10, pp. 6571-6592

This paper presents the modeling and control of a waste heat recovery systemfor a Euro-VI heavy-duty truck engine. The considered waste heat recovery system consists of two parallel evaporators with expander and pumps mechanically coupled to the engine crankshaft. Compared to previous work, the...

Persistent link: https://www.econbiz.de/10010945709

Experimental Investigation of Heat Transfer and Pressure Drop Characteristics of H-type Finned Tube Banks

Chen, Heng; Wang, Yungang; Zhao, Qinxin; Ma, Haidong; … - In: Energies 7 (2014) 11, pp. 7094-7104

H-type finned tube heat exchanger elements maintain a high capacity for heat transfer, possess superior self-cleaning properties and retain the ability to effect flue gas waste heat recovery in boiler renovations. In this paper, the heat transfer and pressure drop characteristics of H-type...

Persistent link: https://www.econbiz.de/10010945711

Linear Active Disturbance Rejection Control of Waste Heat Recovery Systems with Organic Rankine Cycles

Zhang, Jianhua; Feng, Jiancun; Zhou, Yeli; Fang, Fang; … - In: Energies 5 (2012) 12, pp. 5111-5125

In this paper, a linear active disturbance rejection controller is proposed for a waste heat recovery system using an organic Rankine cycle process, whose model is obtained by applying the system identification technique. The disturbances imposed on the waste heat recovery system are estimated...

Persistent link: https://www.econbiz.de/10010676106

Analyzing the Performance of a Dual Loop Organic Rankine Cycle System for Waste Heat Recovery of a Heavy-Duty Compressed Natural Gas Engine

Yao, Baofeng; Yang, Fubin; Zhang, Hongguang; Wang, Enhua; … - In: Energies 7 (2014) 11, pp. 7794-7815

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)...

Persistent link: https://www.econbiz.de/10011078508

Performance Analysis of the Vehicle Diesel Engine-ORC Combined System Based on a Screw Expander

Yang, Kai; Zhang, Hongguang; Song, Songsong; Zhang, Jian; … - In: Energies 7 (2014) 5, pp. 3400-3419

To achieve energy saving and emission reduction for vehicle diesel engines, the organic Rankine cycle (ORC) was … employed to recover waste heat from vehicle diesel engines, R245fa was used as ORC working fluid, and the resulting vehicle … diesel engine-ORC combined system was presented. The variation law of engine exhaust energy rate under various operating …

Persistent link: https://www.econbiz.de/10011030693

Multi-Stage Control of Waste Heat Recovery from High Temperature Slags Based on Time Temperature Transformation Curves

Sun, Yongqi; Zhang, Zuotai; Liu, Lili; Wang, Xidong - In: Energies 7 (2014) 3, pp. 1673-1684

This paper presents a significant method and a basic idea of waste heat recovery from high temperature slags based on Time Temperature Transformation (TTT) curves. Three samples with a fixed CaO/SiO2 ratio of 1.05 and different levels of Al2O3 were designed and isothermal experiments were...

Persistent link: https://www.econbiz.de/10011031092

Thermodynamic Analysis of a Ship Power Plant Operating with Waste Heat Recovery through Combined Heat and Power Production

Grljušić, Mirko; Medica, Vladimir; Račić, Nikola - In: Energies 7 (2014) 11, pp. 7368-7394

a CHP Plant with R245fa fluid using a supercritical organic Rankine cycle (ORC) is selected. All the ship heat …. However, a CHP plant with R245fa fluid using supercritical ORC meets all of the demands for electrical energy and heat while …

Persistent link: https://www.econbiz.de/10011031138