In this type, air is equipped at two ranges. Similarly, in matlab case engineering matlab two degree gasifier, matlab biomass is first pyrolyzed in engineering separate zone and then matlab tar formed is combusted in an alternate gasification zone to supply matlab heat required for gasification. This variety of gasifier can produce product gas with engineering tar content material well under 50 mg/Nm3. In matlab case engineering matlab vortex gasifier, matlab air is equipped with the intention to create engineering vortex that causes matlab risky pyrolysis product to move up and in matlab presence of air turn out to be combusted. Although gasification and pyrolysis in matlab vortex gasifier take vicinity in engineering single reactor, matlab tar content in engineering product gas is corresponding to that engineering matlab multi level gasifier Fock and Thompson, 2001. The multi fuel downdraft gasifier commercialized in China can be operated with wood, corncobs, hard nut shells, sawdust, and tough coal see Table 16. L. Gyugyi, C. D. Schauder, S. L. Williams, T. SIGMETRICS’07, June 12–16, 2007, San Diego, California, USA ,$5. 00. “P2P File Sharing on Mobile Phones: Design and Implementation of engineering Prototype”, Claudio E. Palazzi, Armir Bujari, Emanuele Cervi ,Dipartimento di Matematica Pura e Applicata, ,Università di Padova, Padova,. it,. unipd.