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This article presents a photonic crystal fiber (PCF) sensor model with enlarged sensing performance for ethanol detection. Comsol Multiphysics (Version-5.2) is used to simulate the sensor model and MATLAB is used to plot expected sensing profiles. The proposed sensor model provides the sensitivity of around 54% at a wavelength of 1.6 . The sensor model also shows zero confinement loss till 1.6 and after that around 0.65 dB/m confinement loss is observed at a wavelength of 1.8 . Effective area is also investigated in this work and it is obtained around 19 at wavelength 1.6 . The proposed model is very simple and hopefully, possible to fabricate by using existing fabrication model.