What are the characteristics and reasons of ancient energy structure?

Features: Our ancient ancestors developed and utilized four kinds of energy: biomass energy, mineral energy, natural energy and animal energy. Biomass energy, because of its easy acquisition and utilization, is the earliest energy source that our ancestors focused on developing and utilizing, and has always occupied a dominant position in the ancient energy structure. In the long-term production and living practice, the ancestors developed and utilized abundant biomass energy, including woody plants, herbs, charcoal, bamboo charcoal, bio-oil, animal manure, beeswax, insect wax, wine and so on. These different kinds of biomass energy constitute a relatively complete energy system, forming a special energy base, showing significant regional characteristics.

Reason:

Energy is the most basic motive force of the whole social development and economic growth, and it is the foundation of human survival and development. Since humans began to use fire, the real history of energy utilization began. Biomass energy, as an energy carrier resource to provide light energy and heat energy, is the earliest and most commonly used energy of ancient ancestors. Because of its variety, huge quantity, universality, accessibility, renewability and convenience, it has always been the most important production and living energy in ancient society.

Traditional biomass energy refers to biomass energy that is utilized by traditional technologies, such as direct combustion with tools such as inefficient stoves. Its advantages are easy combustion, less pollution and low ash content. Disadvantages are low calorific value and thermal efficiency, large volume, difficult transportation and large storage capacity. Our ancient ancestors developed and utilized a variety of biomass energy sources, such as herbs, woody plants, charcoal, bamboo charcoal, bio-oil, animal manure, wax, wine and so on. , mainly through the primitive and simple direct combustion to obtain the required light energy or heat energy, used in cooking, heating, lighting, medical care, handicraft production, military activities (such as fire fighting and signal transmission) and other social life and production fields.