What is the approximate heating value of dry wood bark?

The approximate heating value of dry wood bark is around 50,000 kJ/kg. This value represents the amount of thermal energy that can be obtained from burning wood bark under ideal conditions. Wood bark is often considered a high-energy biomass resource, primarily due to its composition of cellulose, hemicellulose, and lignin, which are all organic compounds that release a significant amount of energy when combusted.

This heating value is particularly important for applications such as biomass energy production, where efficient conversion of organic materials into energy is sought. The higher heating value signifies that dry wood bark can be a valuable source of energy, especially in sustainability-focused energy strategies where renewable resources are prioritized.

In contrast, lower heating values, such as those presented in the other options, include less energy potential per kilogram of bark, which may reflect the energy contained in other types of biomass or wetter materials that do not combust as efficiently. Understanding the heating value of different fuels is crucial for optimizing energy systems and improving combustion technology in power generation and heating applications.