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Optimization of geometrical parameters for Stirling engines based on theoretical analysis

Cheng, Chin-Hsiang; Yang, Hang-Suin - In: Applied Energy 92 (2012) C, pp. 395-405

This study is aimed at theoretical analysis of the effects of the geometrical parameters on the shaft work of the Stirling engines. The optimal combination of the phase angle and the swept volume ratio, that leads to maximization of the shaft work of the engine, is obtained under different...

Persistent link: https://www.econbiz.de/10011041073

Improved heuristics for the regenerator location problem

Duarte, A.; Martí, R.; Resende, Mauricio G. C.; Silva, … - In: International transactions in operational research : … 21 (2014) 4, pp. 541-558

Persistent link: https://www.econbiz.de/10010388509

Performance analysis of a novel power/refrigerating combined-system driven by the low-grade waste heat using different refrigerants

Li, You-Rong; Wang, Xiao-Qiong; Li, Xiao-Ping; Wang, … - In: Energy 73 (2014) C, pp. 543-553

increase. The use of regenerator can improve the system performance and reduce the optimal turbine inlet pressure. Under …

Persistent link: https://www.econbiz.de/10010906873

Effect of regeneration mode on the performance of liquid desiccant packed bed regenerator

Liu, X.H.; Jiang, Y.; Yi, X.Q. - In: Renewable Energy 34 (2009) 1, pp. 209-216

The regenerator is one of the key components in liquid desiccant air-conditioning systems, in which desiccant is … concentrated and can be reused in the system. The regeneration heat is supplied into the regenerator by either hot air or hot … hot air driven regenerator, the parallel-flow regenerator has the best mass transfer performance and the counter …

Persistent link: https://www.econbiz.de/10010805888

Performance of a beta-configuration heat engine having a regenerative displacer

Eid, Eldesouki - In: Renewable Energy 34 (2009) 11, pp. 2404-2413

fluid between expansion and compression spaces via the heater, the regenerator, and the cooler. In the present work … displacer and a regenerator simultaneously. The theoretical analysis of the engine is based mainly on Schmidt theory. The … optimum dimensions of the heater, cooler, regenerator, piston stroke and displacer stroke as dimensionless ratios of the bore …

Persistent link: https://www.econbiz.de/10010806294

Performance optimization of Stirling engines

Timoumi, Youssef; Tlili, Iskander; Ben Nasrallah, Sassi - In: Renewable Energy 33 (2008) 9, pp. 2134-2144

The search for an engine cycle with high efficiency, multi-sources of energy and less pollution has led to reconsideration of the Stirling cycle. Several engine prototypes were designed but their performances remain relatively weak when compared with other types of combustion engines. In order...

Persistent link: https://www.econbiz.de/10010806984

Comparison between the conventional and recirculation modes in desiccant cooling cycles and deriving critical efficiencies of components

Bourdoukan, P.; Wurtz, E.; Joubert, P. - In: Energy 35 (2010) 2, pp. 1057-1067

Desiccant evaporative systems are heat driven at moderate temperature and are usually coupled with solar collectors or with waste heat. The performance of desiccant systems is very sensitive to outside conditions and to the efficiency of the system components. In this paper the impact of these...

Persistent link: https://www.econbiz.de/10010809557

Performance analysis of a modified regenerative Brayton and inverse Brayton cycle

Goodarzi, Mohsen; Kiasat, Mohsen; Khalilidehkordi, Ehsan - In: Energy 72 (2014) C, pp. 35-43

cycle has been modified by partially bypassing the airflow entering the regenerator. The influence of the bypass mass flow …

Persistent link: https://www.econbiz.de/10010810156

Recent advancements in liquid desiccant dehumidification technology

Yin, Yonggao; Qian, Junfei; Zhang, Xiaosong - In: Renewable and Sustainable Energy Reviews 31 (2014) C, pp. 38-52

Liquid desiccant dehumidification technology is becoming increasingly attractive due to its high efficient utilization of low-grade heat and its effectiveness in dehumidification. Using this technology, energy-efficient air conditioning systems have been developed, which demonstrated superiority...

Persistent link: https://www.econbiz.de/10010744085

Experimental investigation of the heat and mass transfer between air and liquid desiccant in a cross-flow regenerator

Liu, X.H.; Jiang, Y.; Chang, X.M.; Yi, X.Q. - In: Renewable Energy 32 (2007) 10, pp. 1623-1636

The regenerator is one of the essential components in a liquid desiccant air-conditioning system, whose efficiency … directly influences the system performance. A performance test-bed for a cross-flow regenerator was established in the present … analysis. Celdek structured packings were used in the regenerator and LiBr aqueous solution was used as the liquid desiccant …

Persistent link: https://www.econbiz.de/10010803968