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2016, Volume 10, Issue 2

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Frontiers in Energy >> 2016, Volume 10, Issue 2 doi: 10.1007/s11708-016-0406-x

CFD evaluation of pressure drop across a 3-D filter housing for industrial gas turbine plants

. Department of Mechanical Engineering, Michael Okpara University of Agriculture, Umudike, Umuahia 02155, Nigeria.. Department of Mechanical Engineering, Cross River University of Technology, Calabar 540252, Nigeria.. Department of Mechanical Engneering, Covenant Universiy, Ota 11001, Nigeria

Accepted: 2016-05-12 Available online: 2016-05-27
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Abstract

This paper investigated the flow distribution and total pressure drop across a designed 3-D filter housing integrated with a 3-stage filtration system using computational fluid dynamics (CFD). The filter housing model was proposed for a heavy-duty industrial gas turbine plant operating at an average ambient temperature of 20°C.The pressure drops across the classes of filters were 652.8 Pa, 2692.2 Pa, 887.8 Pa, 776.2 Pa and 2304.2 Pa for I-GB, GB-GA, GA-FA, FA-HA, and HA-O, respectively. The results obtained indicated an acceptable total pressure drop of 7.2% for the entire filter housing before filter clean-up. Although the CFD simulation result shows that small outlet flow velocity and transonic flows exist at the outlet of the filter housing, the designed filter housing was proved compatible with the studied GT, for inlet flow conditions between 600≤ ≤610 kg/s and 60≤ ≤70 m/s for the air flow rate and velocity, respectively. Furthermore, the designed filter housing could be adopted for the studied GT and locations of Usan and Maiduguri in Nigeria, and other locations with similar environmental conditions.

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