摘要:
Composite materials for a cathode of an electrochemical cell. The composite materials comprise Li[M1−xLix]O2 or yLi2MnO3.(1−y)LiMO2 (M=Ni, Co, Mn, 0
摘要:
A circular utilization method in pulping and papermaking processes with straw Primary pulp is obtained by digesting straw raw material according to the ammonium sulfite method. Concentrated black liquor is extruded from the primary pulp; paper pulp and diluted black liquor. The concentrated black liquor and the diluted black liquor are mixed, and a contaminated condensate is obtained. A residual concentrate or the concentrated black liquor is used for preparing a fertilizer. The contaminated condensate is mixed with one or more of the waste material obtained from stock preparation, a crop byproduct or organic waste, and substrate or fertilizer is obtained by fermenting the nitrogen source of the contaminated condensate or ammonium sulfite, or using the contaminated condensate for desulfurizing flue gas. Ammonia and flue gas are reacted to obtain the ammonium sulfite as a digestion agent; and water from recycling is used in corresponding phases of the pulping process.
摘要:
Thermoelectric devices, intended for placement in the exhaust of a hydrocarbon fuelled combustion device and particularly suited for use in the exhaust gas stream of an internal combustion engine propelling a vehicle, are described. Exhaust gas passing through the device is in thermal communication with one side of a thermoelectric module while the other side of the thermoelectric module is in thermal communication with a lower temperature environment. The heat extracted from the exhaust gasses is converted to electrical energy by the thermoelectric module. The performance of the generator is enhanced by thermally coupling the hot and cold junctions of the thermoelectric modules to phase-change materials which transform at a temperature compatible with the preferred operating temperatures of the thermoelectric modules. In a second embodiment, a plurality of thermoelectric modules, each with a preferred operating temperature and each with a uniquely-matched phase-change material may be used to compensate for the progressive lowering of the exhaust gas temperature as it traverses the length of the exhaust pipe.
摘要:
A method of controlling engine exhaust flow through at least one of an exhaust bypass and a thermoelectric device via a bypass valve is provided. The method includes: determining a mass flow of exhaust exiting an engine; determining a desired exhaust pressure based on the mass flow of exhaust; comparing the desired exhaust pressure to a determined exhaust pressure; and determining a bypass valve control value based on the comparing, wherein the bypass valve control value is used to control the bypass valve.
摘要:
Thermoelectric modules are disposed to be connected to a vehicle coolant system and to an air handling system to provide localized climate control and passenger compartment climate control. Vehicle coolant acts as a heat sink in cooling mode and a heat source in heating mode in embodiments. A system controller in embodiments is disposed to monitor an input for a signal that a monitored climate characteristic has departed from a predefined range of values.
摘要:
A thermoelectric material includes a filled skutterudite crystal structure having the formula GyM4X12, where i) G includes at least two rare earth elements and an alkaline earth element, ii) M is cobalt, rhodium, or iridium, and iii) X is antimony, phosphorus, or arsenic. The subscript “y” refers to a crystal structure filling fraction ranging from about 0.001 to about 0.5.
摘要:
A method of generating electrical current in a system comprising a power-plant unit and/or hydrogen storage medium by transferring heat generated by the hydrogen storage medium and/or power-plant unit to a thermoelectric device, and converting the heat to generate electrical current using the thermoelectric device.
摘要:
A method for controlling temperature of a catalytic converter in an automobile exhaust system is disclosed. The method includes establishing a reference temperature for the catalytic converter, distributing a stream of exhaust gases through the catalytic converter, obtaining a measured temperature of the catalytic converter and converting thermal energy from the stream of exhaust gases into electrical energy when the measured temperature exceeds the reference temperature. An apparatus for controlling temperature of a catalytic converter in an automobile exhaust system is also disclosed.
摘要:
A circular utilization method in pulping and papermaking processes with straw Primary pulp is obtained by digesting straw raw material according to the ammonium sulfite method. Concentrated black liquor is extruded from the primary pulp; paper pulp and diluted black liquor. The concentrated black liquor and the diluted black liquor are mixed, and a contaminated condensate is obtained. A residual concentrate or the concentrated black liquor is used for preparing a fertilizer. The contaminated condensate is mixed with one or more of the waste material obtained from stock preparation, a crop byproduct or organic waste, and substrate or fertilizer is obtained by fermenting the nitrogen source of the contaminated condensate or ammonium sulfite, or using the contaminated condensate for desulfurizing flue gas. Ammonia and flue gas are reacted to obtain the ammonium sulfite as a digestion agent; and water from recycling is used in corresponding phases of the pulping process.
摘要:
A battery pack thermal management system includes a plurality of battery cells connected to at least one DC power bus. At least one thermoelectric device is operatively disposed in thermal contact with the plurality of battery cells. At least one temperature measuring device is operatively connected to the thermal management system, and configured to measure a temperature of a predetermined portion of the plurality of battery cells. A cell balancing circuit is operatively connected to the plurality of battery cells, and configured to selectively divert a portion of electric current from at least one of the plurality of battery cells to the at least one thermoelectric device. An electronic controller is operatively connected to the cell balancing circuit, and configured to control a flow of electric current to the at least one thermoelectric device.