The disclosure relates to a method for increasing a temperature of a vehicle interior of a vehicle from a low temperature value to an increased temperature value, wherein the vehicle has a fuel cell system with a fuel cell stack and a compressor connected with the fuel cell stack at the cathode side, comprising: drawing in cathode gas via the compressor, and compressing and heating the drawn-in cathode gas. At least a portion of a cathode gas mass flow of the heated cathode gas is directed into the vehicle interior, and the temperature of the vehicle interior is raised to the increased temperature value. Moreover, the disclosure relates to a vehicle for implementing the method.

A system has a fuel cell. The fuel cell has a source of hydrogen and a source of oxygen containing gas. The hydrogen is connected for passage across the anode. The source of oxygen containing gas is connected to pass across a cathode. The fuel cell produces electricity. A catalytic oxidizer oxidizes hydrogen within the system. A cooling water circuit passes across cooling water passages in the fuel cell and cools the cathode. Cooling water downstream of the cooling water passages passes across the catalytic oxidizer to heat the catalytic oxidizer. An enclosed vehicle is also disclosed.

The present disclosure discloses a battery assembly and an electronic cigarette using the battery assembly, wherein the battery assembly comprises a main body and a cover, the main body is provided with a battery compartment with an opening, one end of the cover is rotatably mounted on the main body, and the other end is provided with a locking assembly, the end of the battery compartment close to the opening is provided with a limiting part, the cover is locked to the main body and covers the opening when rotating to the locking assembly to be fastened to the limiting part, the main body is further provided with at least one elastic assembly which elastically abuts against the cover when the cover covers the main body.

A power management method includes a step A of transmitting a power command message for controlling a distributed power supply from a power management server to a local control apparatus, the power management server managing a plurality of facilities, the distributed power supply being individually provided in each facility, and the local control apparatus being individually provided in each facility, wherein the step A includes a step of transmitting the power command message based on a specifying result or an estimating result of a local operation plan of the distributed power supply in each facility.

A power management method includes a step A of specifying an influence of a distributed power supply on a power demand-supply balance by a power management server, the power management server managing a plurality of facilities and the distributed power supply being individually provided in each of the plurality of facilities; and a step B of transmitting distributed power supply information from a local control apparatus to the power management server, the local control apparatus being individually provided in each of the plurality of facilities and the distributed power supply information including information indicating an operation state of the distributed power supply, wherein the step A includes a step of specifying the influence on the power demand-supply-demand balance based on the distributed power supply information.

A thermal management system and a method of heating a water-surface load or sub-water load. The system includes an electrochemical power source which generates electrical power and heat as a byproduct or coproduct. The electrolyte contained in the electrochemical power source is configured to transport the heat that is generated by the electrochemical power source to at least one water-surface load or sub-water load.

A fuel cell system includes a fuel cell for receiving hydrogen from a supply of hydrogen. The system comprises a heat exchanger for transferring heat to the hydrogen from a coolant fluid located in a cooling loop. The cooling loop comprises a number of cooling cores located in a conduit that supplies air to the fuel cell. A compressor compresses air cooled by the cooling cores to provide compressed air to the fuel call. The cooling cores may be de-iced by a coolant fluid that has been warmed by operation of the fuel cell. Fuel cell system efficiency can be increased by cooling the air to be supplied to the fuel cell before or after compressing it.

Provided is a cogeneration system that includes a plurality of fuel cell devices capable of supplying heat and power to a heat load and a power load and a control device connected to the fuel cell devices. The control device determines an operation mode on the basis of at least one of a heat demand value and a power demand value. The control device controls a power generation efficiency and a heat recovery efficiency by controlling the fuel cell devices on the basis of the operation mode determined.

A heater is described. The heater includes a fuel cell to produce heated air, electricity and water vapor. The heater further includes a heating element operatively coupled to the fuel cell to convert the electricity to heat and a control system operatively coupled to the fuel cell and the heating element, the control system being configured to monitor and control the fuel cell and heating element.

Systems and methods are provided for incorporating molten carbonate fuel cells into a heat recovery steam generation system (HRSG) for production of electrical power while also reducing or minimizing the amount of CO.sub.2 present in the flue gas exiting the HRSG. An optionally multi-layer screen or wall of molten carbonate fuel cells can be inserted into the HRSG so that the screen of molten carbonate fuel cells substantially fills the cross-sectional area. By using the walls of the HRSG and the screen of molten carbonate fuel cells to form a cathode input manifold, the overall amount of duct or flow passages associated with the MCFCs can be reduced.