Syngas heating value and cold gas efficiency which are the key parameters to evaluate syngas quality and performance of gasifier influenced the efficiency of whole IGCC power system directly.

Based on the influence of cycle period on gasification efficiency and the effect of lag time of programmed control valve, the optimal cycle period has been obtained as 120s.

On the base of principle of general gasification process, the gasification efficiency and thermal efficiency of high temperature air gasification in pebblebed are calculated by synthetic method.

Using coke not only increases the gasification efficiency by 25 percent and economic benefit by 14 percent but also decreases the operating difficulty and environmental pollution when the production load is seriously insufficient.

Experimental investigation on film cooling effectiveness of multi-hole at longitudinal wavy surface

Calculation results show that rotation causes film cooling effectiveness on the pressure surface to drop—the quicker the rotation the low.

The B-L turbulent model is employed to compute film cooling effectiveness of flat, concave and convex surfaces.

A three-dimensional steady and uncompressible N-S equation was discretized by volume-control method to simulate the effects of hole\'s geometry shapes on film cooling efficiency of turbine blade in combining with non-structural mesh and two-layer k-ε turbulence model,with blowing ratio of 0.