dimmer - RE: RCR design in TRIAC circuit for inductive loads

I was working on a TRIAC based dimming circuit. Initially I plaaned to use a PCB mountable SSR (G3MB-202P), though this was a cheap but the device didnt allow me to do dimming with the same. I can only turn ON or Turn OFF the load. and the other SSR cost $$$(lots of them). So i decided to take a fairly cheap path of using an OPTO-DIAC and a TRIAC.

please find my design below.

I have actually copied the RCR circuit from an online blog. Can someone please help me with the design of this. I know that this circuit is a phase compensation circuit for the current and voltage(lags) due to the inductive load.

Thanks and regards. Siddharth