Experimental investigation on a small pumpless ORC (organic rankine cycle) system driven by the low temperature heat source

Energy ◽  
2015 ◽  
Vol 91 ◽  
pp. 324-333 ◽  
Author(s):  
P. Gao ◽  
L.W. Wang ◽  
R.Z. Wang ◽  
L. Jiang ◽  
Z.S. Zhou
Keyword(s):  
Experimental Investigation ◽  
Low Temperature ◽  
Heat Source ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Cycle System ◽  
Temperature Heat

Development of micro-scale axial and radial turbines for low-temperature heat source driven organic Rankine cycle

2016 ◽  
Vol 130 ◽  
pp. 141-155 ◽  
Author(s):  
Ayad Al Jubori ◽  
Ahmed Daabo ◽  
Raya K. Al-Dadah ◽  
Saad Mahmoud ◽  
Ali Bahr Ennil
Keyword(s):  
Low Temperature ◽  
Heat Source ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Micro Scale ◽  
Temperature Heat ◽  
Radial Turbines

scholarly journals Investigation on a small-scale pumpless Organic Rankine Cycle (ORC) system driven by the low temperature heat source

2017 ◽  
Vol 195 ◽  
pp. 478-486 ◽  
Author(s):  
L. Jiang ◽  
H.T. Lu ◽  
L.W. Wang ◽  
P. Gao ◽  
F.Q. Zhu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Heat Source ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Small Scale ◽  
Temperature Heat

The Performance of the Kalina Cycle System 11(KCS-11) With Low-Temperature Heat Sources

2007 ◽  
Vol 129 (3) ◽  
pp. 243-247 ◽  
Author(s):  
H. D. Madhawa Hettiarachchi ◽  
Mihajlo Golubovic ◽  
William M. Worek ◽  
Yasuyuki Ikegami
Keyword(s):  
Low Temperature ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Inlet Pressure ◽  
Cycle Performance ◽  
Heat Sources ◽  
Kalina Cycle ◽  
Cycle System ◽  
Temperature Heat ◽  
Cycle Efficiency

The possibility of exploiting low-temperature heat sources has been of great significance with ever increasing energy demand. Optimum and cost-effective design of the power cycles provide a means of utilization of low-temperature heat sources which might otherwise be discarded. In this analysis, the performance of the Kalina cycle system 11 (KCS11) is examined for low-temperature geothermal heat sources and is compared with an organic Rankine cycle. The effect of the ammonia fraction and turbine inlet pressure on the cycle performance is investigated in detail. Results show that for a given turbine inlet pressure, an optimum ammonia fraction can be found that yields the maximum cycle efficiency. Further, the maximum cycle efficiency does not necessarily yield the optimum operating conditions for the system. In addition, it is important to consider the utilization of the various circulating media (i.e., working fluid, cooling water, and heat resource) and heat exchanger area per unit power produced. For given conditions, an optimum range of operating pressure and ammonia fraction can be identified that result in optimum cycle performance. In general, the KCS11 has better overall performance at moderate pressures than that of the organic Rankine cycle.

Thermodynamic and economic optimization of a double-pressure organic Rankine cycle driven by low-temperature heat source

2020 ◽  
Vol 147 ◽  
pp. 2822-2832 ◽  
Author(s):  
Qingxuan Sun ◽  
Yaxiong Wang ◽  
Ziyang Cheng ◽  
Jiangfeng Wang ◽  
Pan Zhao ◽  
...  
Keyword(s):  
Low Temperature ◽  
Heat Source ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Economic Optimization ◽  
Temperature Heat
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