The trend towards decentralised electricity generation and combined heat and power (CHP) is continuously increasing. The transition towards a decentralised power system relies on small-scale and often intermittent generation, bringing new challenges such as matching the demand with supply. A possible solution is the use of renewable energy technologies able to accommodate the demand profile, such as biomass gasification. However, operation at part-load is required and thus limiting the gasification performance efficiency. In this paper, a novel experimental assessment and performance results of a biomass gasification system are presented, consisting on the evaluation of the system performance for steady-state conditions at different loads. Gasifier performance at steady-state conditions showed relatively stable reduction and throat temperatures, with average values of about 729 °C and 915 °C, respectively. These high temperatures assure a producer gas LHV of about 5.5 MJ/kg. Decreasing the gas flow rate resulted in a decrease of both reduction and throat temperatures. Nonetheless, the gas LHV increased until 62.5% where a maximum of about 6 MJ/kg was measured. Concerning the equivalence ratio, it decreased with load, attaining a minimum value at 80%, where the best cold gas efficiency results were found (74%).

分散发电和热电联产（CHP）的趋势正在不断增加。向分散型电力系统的过渡依赖于小规模且通常是断断续续的发电，带来了新的挑战，例如将需求与供应相匹配。一种可能的解决方案是使用能够适应需求曲线的可再生能源技术，例如生物质气化。然而，需要在部分负荷下运行，因此限制了气化性能效率。本文提出了一种新颖的实验评估和生物质气化系统的性能结果，包括对系统在不同负载下的稳态条件下的性能进行评估。稳定状态下的气化炉性能显示出相对稳定的还原温度和喉部温度，平均值分别约为729°C和915°C。这些高温确保了产气LHV约为5.5 MJ / kg。降低气体流速导致降低温度和降低喉咙温度。尽管如此，气体LHV升高到62.5％，此时测得的最大值约为6 MJ / kg。关于当量比，它随负载而降低，在80％时达到最小值，在该处发现最佳的冷气效率结果（74％）。