A novel cascade organic Rankine cycle (ORC) system for waste heat recovery of truck diesel engines

Chen, Tao; Zhuge, Weilin; Zhang, Yangjun; Zhang, Lei

doi:10.1016/j.enconman.2017.01.056

Cited by 140 publications

(38 citation statements)

References 37 publications

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“…In order to improve adsorption system's efficiency, cooling, heating, and electricity should be produced simultaneously. So, expander power generation and organic Rankine cycle (ORC) is an alternative choice, because it can be driven by solar energy, waste heat, bio‐energy, and geothermal, etc . The researchers demonstrate one silica gel/water adsorption‐R141b ORC system.…”

Section: Introductionmentioning

confidence: 99%

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Experimental and simulation analysis of low temperature heat sources driven adsorption air conditioning, refrigeration, integrating ammonia, and organic expanding power generation

Wang

2018

Int J Energy Res

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Summary Adsorption cooling technology is an effective method to use low‐temperature heat sources, such as solar energy, waste heat from industry, etc. However, there exists one bottleneck in the adsorption system application, because of its low energy usage efficiency. In this paper, one novel integrated cycle is designed, investigated, and tested. It includes adsorption cooling cycle, ammonia expanding power generation, and organic Rankine cycle. By the performance comparison of 16 different organics, R600 is the most suitable choice for organic Rankine cycle in this system, due to its highest potential exergy and proper working pressure. The system total exergy efficiency can be improved significantly by the two parts of power generation. The results show that when the heating source, cooling water temperature, and evaporation temperature are approximately 120.1°C, 29.6°C, and −5.3°C, the specific cooling power, coefficient of performance, and total exergy efficiency can arrive at 351.4 W/kg, 0.17, and 0.34, respectively.

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Section: Introductionmentioning

confidence: 99%

“…So, expander power generation and organic Rankine cycle (ORC) is an alternative choice, because it can be driven by solar energy, waste heat, bio-energy, and geothermal, etc. 12,13 The researchers demonstrate one silica gel/water adsorption-R141b ORC system. The results illustrate that the system efficiency can be improved by 70% in the integrated system.…”

mentioning

confidence: 99%

Experimental and simulation analysis of low temperature heat sources driven adsorption air conditioning, refrigeration, integrating ammonia, and organic expanding power generation

Wang

2018

Int J Energy Res

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“…Zhao et al evaluated the performance of a diesel engine with ORC system and discussed the effects of the ORC system on the acceleration performance of the engine. Chen et al developed a confluent cascade expansion ORC system to recover engines waste heat. The system performance was evaluated under different engine operating conditions.…”

Section: Introductionmentioning

confidence: 99%

Simulation analysis of cooling methods of an on-board organic Rankine cycle exhaust heat recovery system

Zhao

Wei

et al. 2017

Int J Energy Res

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Energy saving and emission reduction of engines were taken seriously, especially for vehicular diesel engines.\ud Exhaust heat recovery based on organic Rankine cycle (ORC) system has been considered as an effective\ud approach for improving engine fuel economy. This article presents the investigation of water or air cooling\ud method for an ORC exhaust heat recovery system on a heavy duty truck through simulations. The models of\ud the truck engine and the ORC system were developed in GT-suite, and the integration system model was\ud developed in the Simulink environment. The validity of the models was verified experimentally. The\ud performance of the vehicular engine with ORC system using water or air cooling method was comparatively\ud analyzed. The simulation results indicated that water cooling method is more suitable for the vehicular ORC\ud system than air cooling method. The relation between benefit and penalty of the ORC system and cooling system\ud was discussed. The operating condition of the cooling system was confirmed having significant effects on the\ud combined system performance, especially the fan speed. The performance improvement of the engine with the\ud use of ORC system was further evaluated under different engine operating conditions and ambient temperatures.\ud Lower ambient temperature had positive impacts on the engine fuel economy. The mass flow rate of exhaust\ud gas for heat recovery should be regulated for better performance under high ambient temperature

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“…These cycles operate with a working fluid and heat exchangers, which absorb the heat of exhaust gases to change the fluid's state, which is then channeled towards a turbine for power generation. The most widely used thermodynamic cycles for this application are Rankine and Brayton, but in this particular work only the Rankine cycle is taken into consideration as the most widely-accepted and employed means of waste heat recovery [23,24]. A typical parameter that can predict the efficiency of a waste heat recovery system is the temperature of the exhaust gases, and as this temperature is increased, the amount and quality of energy that can be exploited will increase.…”

Section: Waste Heat Recoverymentioning

confidence: 99%

Hybrid Electric Vehicle Performance with Organic Rankine Cycle Waste Heat Recovery System

Andwari

Pesiridis

Karvountzis-Kontakiotis

et al. 2017

Applied Sciences

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This study examines the implementation of a waste heat recovery system on an electric hybrid vehicle. The selected waste heat recovery method operates on organic Rankine cycle principles to target the overall fuel consumption improvement of the internal combustion engine element of a hybrid powertrain. This study examines the operational principle of hybrid electric vehicles, in which the internal combustion engines operates with an electric powertrain layout (electric motors/generators and batteries) as an integral part of the powertrain architecture. A critical evaluation of the performance of the integrated powertrain is presented in this paper whereby vehicle performance is presented through three different driving cycle tests, offering a clear assessment of how this advanced powertrain configuration would benefit under several different, but relevant, driving scenarios. The driving cycles tested highlighted areas where the driver could exploit the full potential of the hybrid powertrain operational modes in order to further reduce fuel consumption.

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A novel cascade organic Rankine cycle (ORC) system for waste heat recovery of truck diesel engines

Cited by 140 publications

References 37 publications

Experimental and simulation analysis of low temperature heat sources driven adsorption air conditioning, refrigeration, integrating ammonia, and organic expanding power generation

Experimental and simulation analysis of low temperature heat sources driven adsorption air conditioning, refrigeration, integrating ammonia, and organic expanding power generation

Simulation analysis of cooling methods of an on-board organic Rankine cycle exhaust heat recovery system

Hybrid Electric Vehicle Performance with Organic Rankine Cycle Waste Heat Recovery System

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