At present, the focus is on distributed energy generation with low or negative carbon emissions as well as high conversion yields. In Romania, the renewable energy resource that can be used and produced when and where...At present, the focus is on distributed energy generation with low or negative carbon emissions as well as high conversion yields. In Romania, the renewable energy resource that can be used and produced when and wherever necessary is residual agricultural biomass with a potential of 31 million tons, which can produce over 40% of the national energy demand. Residual agricultural biomass is produced with an average energy efficiency of 6 kWh·bm/kWh input. The CHAB （combined heat and biochar production） concept produces high yield thermal energy as well as BC （biochar） with an average carbon footprint of 140 kg/ton biomass. If the energy produced is used to produce agricultural output, the negative carbon footprint increases by reducing the consumption of fossil fuels. It increases energy independence, the safety of agricultural production, the number of jobs, and regional economic development.展开更多
The paper presents a study on increasing energy independence of a 200 m2 horticultural hothouse, by means of heating it with thermal energy from a TLUD （top-lit-up-draft） gasification procedure of local residual agr...The paper presents a study on increasing energy independence of a 200 m2 horticultural hothouse, by means of heating it with thermal energy from a TLUD （top-lit-up-draft） gasification procedure of local residual agricultural biomass, chopped at 10-50 mm and dried at 10%-15% RH （relative humidity）. It produces an average of 14% higt quality biochar. Hot-air heating system and forced circulation are equipped with two GAZMER 40/150G energetic modules, which are rechargeable, simple, safe, efficient and environmentally friendly. They can gasify chopped or pelletised biomass. To study the microclimate evolution, it was used a complex numerical model for a 200 m2 hothouse for growing vegetables. Simulated experiments were carried out for frosty days and, estimated, for the whole warming period. Each year 13.44 t of biomass are consumed, resulting 1.78 t ofbiochar which, when introduced in soil, produces a -6.2 t/year negative balance of CO2.展开更多
文摘At present, the focus is on distributed energy generation with low or negative carbon emissions as well as high conversion yields. In Romania, the renewable energy resource that can be used and produced when and wherever necessary is residual agricultural biomass with a potential of 31 million tons, which can produce over 40% of the national energy demand. Residual agricultural biomass is produced with an average energy efficiency of 6 kWh·bm/kWh input. The CHAB （combined heat and biochar production） concept produces high yield thermal energy as well as BC （biochar） with an average carbon footprint of 140 kg/ton biomass. If the energy produced is used to produce agricultural output, the negative carbon footprint increases by reducing the consumption of fossil fuels. It increases energy independence, the safety of agricultural production, the number of jobs, and regional economic development.
文摘The paper presents a study on increasing energy independence of a 200 m2 horticultural hothouse, by means of heating it with thermal energy from a TLUD （top-lit-up-draft） gasification procedure of local residual agricultural biomass, chopped at 10-50 mm and dried at 10%-15% RH （relative humidity）. It produces an average of 14% higt quality biochar. Hot-air heating system and forced circulation are equipped with two GAZMER 40/150G energetic modules, which are rechargeable, simple, safe, efficient and environmentally friendly. They can gasify chopped or pelletised biomass. To study the microclimate evolution, it was used a complex numerical model for a 200 m2 hothouse for growing vegetables. Simulated experiments were carried out for frosty days and, estimated, for the whole warming period. Each year 13.44 t of biomass are consumed, resulting 1.78 t ofbiochar which, when introduced in soil, produces a -6.2 t/year negative balance of CO2.
