Author(s)

Thaddaeus Julius¹, Tanimu Kogi Ibrahim¹, Emmanuel Okon Asukwo², Ezeaku Ikeokwu Innocent³

¹Federal University, Wukari, Nigeria.
²Nigeria Maritime University, Okerenkoko, Nigeria.
³Abia State University, Uturu, Nigeria.

This study explores the potentials of employing an Organic Rankine Cycle (ORC) system with variable inlet guide vanes (VIV) turbine geometry designed on a GT-Suite platform for effective exhaust heat recovery (EHR) application onboard passenger vehicles. The ORC model simulation was based on vehicle speed mode using R245fa as working fluid to assess the thermal performance of the ORC system when utilizing modified turbine geometry. Interestingly, the model achieved a very improved performance in contrast to the model without a modified turbine configuration. The results revealed the average 2.32 kW ORC net output, 4.93% thermal efficiency, 6.1% mechanical efficiency, and 5.0% improved brake specific fuel consumption (BSFC) for the developed model. As determined by the performance indicators, these promising results from the model study show the prospect of EHR technology application in the transportation sector for reduction in exhaust emissions and fuel savings.

Organic Rankine Cycle System, Variable Inlet Guide Vanes, Heat Recovery System, Mechanical Efficiency, Thermal Efficiency, Improved BSFC

Julius, T. , Ibrahim, T. , Asukwo, E. and Innocent, E. (2021) Performance Assessment of a Heat Recovery Unit Utilizing Turbine with Variable Inlet Guide Vanes Configuration for Application in Passenger Vehicles. Journal of Power and Energy Engineering, 9, 120-133. doi: 10.4236/jpee.2021.95008.