Abstract: A method for drying biomass fuel using waste heat of flue gas from a power plant. The method includes: 1) stepwise recovering, by multi-stage condensation, sensible heat of flue gas; stepwise heating air using the sensible heat, to yield first-stage dry air and second-stage dry air; 2) convectively drying and dehydrating biomass fuel using the first-stage dry air having a temperature of between 150 and 180° C.; 3) further convectively drying and dehydrating the biomass fuel using the second-stage dry air having a temperature of between 80 and 100° C.; and 4) drying and dehydrating the biomass fuel using the third-stage dry air having a temperature of less than or equal to 25° C.

Abstract: A seasonal heat-cold energy storage and supply pool, including a salt-free solar pool at the upper layer and an energy storage pool at the lower layer. The salt-free solar pool and the energy storage pool are separately connected to a water source. The salt-free solar pool includes a pool bottom and a pool wall. The pool bottom of the salt-free solar pool functions as a top cover of the energy storage pool. The energy storage pool includes a wall and a bottom which are a composite layer. The energy storage pool is provided with a heat exchange coil configured to implement heat exchange in the energy storage pool for supplying heat and cold for an external user. The salt-free solar pool and the energy storage pool are communicated through controllable valves at the pool bottom of the salt-free solar pool.

Abstract: A method for drying biomass fuel, including: 1) collecting and cutting raw biomass fuel into fragments; mechanically squeezing and dehydrating the fragments to yield biomass fuel in the form of filter cake; 2) mashing and loosening the biomass fuel in the form of filter cake; and loading the biomass fuel onto charging carriages of fuel transport vehicles; 3) connecting tails of the fuel transport vehicles and the carrier vehicle of drying equipment; moving the movable drying room of the carrier vehicle of drying equipment onto the fuel transport vehicles; 4) convectively drying the biomass fuel in the charging carriages; 5) exhausting air in the movable drying room following convective drying; and 6) moving the movable drying room to cover and seal the charging carriages of a next fuel transport vehicle following radiant drying. A mobile device for drying biomass fuel is also provided.

Abstract: An integrated solar energy drying system, including: a solar greenhouse, a solar energy storage bed, an air condenser, a wet dust collector, pipes, valves, and blowers. The solar greenhouse includes: a top side, three sunny sides, a shady side, floorboards, a gas inlet, and two gas outlets. The solar energy storage bed includes: an upper air box, a lower air box, a plurality of solar heat collecting-storing pipes, and a sealing chamber. Each solar heat collecting-storing pipe includes an air pipe. The air condenser includes: an air inlet, an air outlet, two gas chambers, and a bundle of gas pipes. The solar greenhouse, the solar energy storage bed, the air condenser, the wet dust collectors are connected via pipes. The valves and the blowers are disposed on the pipes.

Abstract: A method for supplying heat energy and carbon dioxide for vegetables and/or algae production using exhaust gas. The method includes: 1) introducing the exhaust gas to a primary heat exchanger to conduct a first indirect heat exchange between the exhaust gas and air from a vegetable greenhouse and/or an algae culturing house, thereby providing hot air for the vegetable greenhouse and/or the algae culturing house; 2) introducing part of the exhaust gas after the first indirect heat exchange to a secondary heat exchanger to conduct a second indirect heat exchange between the exhaust gas and outdoor air; 3) introducing the exhaust gas to a CO2 pressure swing adsorption device, separating and pumping carbon dioxide to a carbon dioxide storage tank for storage; and 4) supplying the carbon dioxide to the vegetable greenhouse and/or a carbon-absorption tank of the algae culturing house.

Abstract: A method for drying biomass fuel, including: 1) collecting and cutting raw biomass fuel into fragments; mechanically squeezing and dehydrating the fragments to yield biomass fuel in the form of filter cake; 2) mashing and loosening the biomass fuel in the form of filter cake; and loading the biomass fuel onto charging carriages of fuel transport vehicles; 3) connecting tails of the fuel transport vehicles and the carrier vehicle of drying equipment; moving the movable drying room of the carrier vehicle of drying equipment onto the fuel transport vehicles; 4) convectively drying the biomass fuel in the charging carriages; 5) exhausting air in the movable drying room following convective drying; and 6) moving the movable drying room to cover and seal the charging carriages of a next fuel transport vehicle following radiant drying. A mobile device for drying biomass fuel is also provided.

Abstract: A method for drying biomass fuel using waste heat of flue gas from a power plant. The method includes: 1) stepwise recovering, by multi-stage condensation, sensible heat of flue gas; stepwise heating air using the sensible heat, to yield first-stage dry air and second-stage dry air; 2) convectively drying and dehydrating biomass fuel using the first-stage dry air having a temperature of between 150 and 180° C.; 3) further convectively drying and dehydrating the biomass fuel using the second-stage dry air having a temperature of between 80 and 100° C.; and 4) drying and dehydrating the biomass fuel using the third-stage dry air having a temperature of less than or equal to 25° C.

Abstract: A solar composite tube, including a solar vacuum tube having two open ends; a water path; an adsorbent; and an adsorbate. The solar vacuum tube includes an outer metal tube and an inner metal tube which are coaxially disposed inside the solar vacuum tube. The water path is formed between the outer metal tube and the solar vacuum tube; the adsorbent is disposed between the outer metal tube and the inner metal tube and is configured to exchange heat with water in the water path outside the outer metal tube; the inner metal tube includes a plurality of through holes; the adsorbate is disposed in the inner metal tube; and the adsorbate and the adsorbent form an adsorption-desorption working pair. The invention also provides a solar composite bed including a lower header, an upper header, and the solar composite tube.

Abstract: A solar-assisted heat storage device, including at least one molecular sieve heat storage bed and a heat storage water tank. The molecular sieve heat storage bed includes a cylindrical housing and a plurality of heat storage pipes disposed in the housing. The heat storage pipe includes metal pipes having meshes and an adsorbent layer adhered to the surface of the metal pipes. The adsorbent layer includes a molecular sieve adsorbent material adapted to match with water to form a working pair for heat exchange. Two ends of the housing are both configured with sealing valves and respectively connected to an air inlet and an air outlet of an air preheater. One end of the housing is configured with a water inlet connecting to a water outlet of the heat storage water tank, and the other end of the housing is configured with a water outlet.

Abstract: A seasonal thermal energy storage system for heat supply and removal, including an energy-storage device, a solar collector, a refrigerating unit, and a water supply device in closed-loop connection to a user terminal. The energy-storage device includes at least a heat source storage pond and a cold source storage pond. The heat source storage pond and the cold source storage pond are connected to water source via first water pumps. The water supply device includes a hot water supply pool connected to the heat source storage pond and a cold water supply pool connected to the cold source storage pond. The solar collector is connected to the heat source storage pond and the hot water supply pool via second water pumps. The refrigerating unit is connected to the hot water supply pool and the cold water supply pool via third water pumps.

Abstract: An integrated solar energy drying system, including: a solar greenhouse, a solar energy storage bed, an air condenser, a wet dust collector, pipes, valves, and blowers. The solar greenhouse includes: a top side, three sunny sides, a shady side, floorboards, a gas inlet, and two gas outlets. The solar energy storage bed includes: an upper air box, a lower air box, a plurality of solar heat collecting-storing pipes, and a sealing chamber. Each solar heat collecting-storing pipe includes an air pipe. The air condenser includes: an air inlet, an air outlet, two gas chambers, and a bundle of gas pipes. The solar greenhouse, the solar energy storage bed, the air condenser, the wet dust collectors are connected via pipes. The valves and the blowers are disposed on the pipes.

Abstract: A seasonal heat-cold energy storage and supply pool, including a salt-free solar pool at the upper layer and an energy storage pool at the lower layer. The salt-free solar pool and the energy storage pool are separately connected to a water source. The salt-free solar pool includes a pool bottom and a pool wall. The pool bottom of the salt-free solar pool functions as a top cover of the energy storage pool. The energy storage pool includes a wall and a bottom which are a composite layer. The energy storage pool is provided with a heat exchange coil configured to implement heat exchange in the energy storage pool for supplying heat and cold for an external user. The salt-free solar pool and the energy storage pool are communicated through controllable valves at the pool bottom of the salt-free solar pool.

Abstract: A seasonal thermal energy storage system for heat supply and removal, including an energy-storage device, a solar collector, a refrigerating unit, and a water supply device in closed-loop connection to a user terminal. The energy-storage device includes at least a heat source storage pond and a cold source storage pond. The heat source storage pond and the cold source storage pond are connected to water source via first water pumps. The water supply device includes a hot water supply pool connected to the heat source storage pond and a cold water supply pool connected to the cold source storage pond. The solar collector is connected to the heat source storage pond and the hot water supply pool via second water pumps. The refrigerating unit is connected to the hot water supply pool and the cold water supply pool via third water pumps.

Abstract: A method for supplying heat energy and carbon dioxide for vegetables and/or algae production using exhaust gas. The method includes: 1) introducing the exhaust gas to a primary heat exchanger to conduct a first indirect heat exchange between the exhaust gas and air from a vegetable greenhouse and/or an algae culturing house whereby providing hot air for the vegetable greenhouse and/or the algae culturing house; 2) introducing part of the exhaust gas after the first indirect heat exchange to a secondary heat exchanger to conduct a second indirect heat exchange between the exhaust gas and outdoor air; 3) introducing the exhaust gas to a CO2 pressure swing adsorption device, separating and pumping carbon dioxide to a carbon dioxide storage tank for storage; and 4) supplying the carbon dioxide to the vegetable greenhouse and/or a carbon-absorption tank of the algae culturing house.