Hi Tareq,
SAP has not provided access to HANA server setup independently for developers. You may use the 2 options given at link below or buy a licensed HANA server as a customer.
http://scn.sap.com/community/developer-center/hana
Also, HANA runs on specific computer hardware specially designed for HANA software. Your deskptop/laptop may not support the installation.
Regards,
-Amol Gupta