Universiti Teknologi Malaysia Institutional Repository

Solar thermal organic rankine cycle as a Renewable energy option

Cong, Cheng Eng and Velautham, Sanjayan and Darus, Amer Nordin (2005) Solar thermal organic rankine cycle as a Renewable energy option. Solar thermal organic rankine cycle as a (20). pp. 68-77.


Official URL: https://www.fkm.utm.my/~mekanika/


The objective of the paper is to study the feasibility of an Organic Rankine Cycle (ORC) driven by solar thermal energy as a renewable energy option for small and medium sized commercial usage, power generation of less than 10MW. ORC is principally a conventional Rankine Cycle that uses organic compound as the working fluid instead of water and it is particularly suitable for low temperature applications. Appropriate organic compound includes refrigerants and azeotropes. The ORC and the solar collector are sized according to the solar flux distribution in Malaysia. According to Malaysia Metrological Department, Kota Kinabalu has the highest yearly average of solar radiation in the country for year 2003, for this reason it is chosen for the location of study. The power generation system consists of two cycles, the solar thermal cycle that harness solar energy and the power cycle, which is the ORC that generates electricity. The solar thermal cycle circulates heat transfer fluid (HTF) in the cycle and harness thermal energy from the sun and transfers it to the organic compound in the ORC via a heat exchanger. Components in the power cycle or ORC include an ORC turbine for power generation, a condenser for heat rejection, a pump to increase the pressure and a heat exchanger. The HTF selected in this analysis is Therminol VP3, which is currently used for commercial solar thermal applications. For this research, 2 organic compounds were analyzed, R123 and isobutane. These two compounds are optimized for selection.

Item Type:Article
Subjects:T Technology > T Technology (General)
Divisions:Mechanical Engineering
ID Code:6697
Deposited By: Mohd Sharizan Abu Bakar
Deposited On:23 Oct 2008 02:49
Last Modified:08 Feb 2017 03:28

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