Abstract: A liquid fuel combustion system is provided. The system comprises: a combustion stove, comprising a vaporization unit with a ring shape vaporization space, a burner assembly and a first pipeline; a liquid fuel storage tank, having a storage space; a second pipeline, having a third opening end open to the storage space and a fourth opening end open to the ring shape vaporization space; and a liquid fuel composition contained in the storage space, comprising a liquid fuel and an ignition promoter which provides a vapor pressure in the storage space, whereby the vapor pressure drives the liquid fuel composition to be delivered out the storage space through the second pipeline, vaporized in the ring shape vaporization space and then delivered by the first pipeline to the burner assembly.

Abstract: A hydrogen generator essentially composed of a first medium is provided, comprising: a reforming zone, a preheating zone and a heat source. The reforming zone is used for containing a reforming catalyst so as to perform a steam reforming reaction of a hydrogen-producing raw material to generate hydrogen; and the heat source provides heat to the preheating zone and reforming zone, so that the hydrogen-producing raw material is firstly preheated in the preheating zone and then performs the steam reforming reaction in the reforming zone. The reforming zone and preheating zone are divided with a shortest interval of at least about 0.5 mm with the first medium, wherein the first medium has a thermal conductivity (K) of at least about 60 W/m-K.

Abstract: A fluid delivery device is provided. The device comprises an internal container, an external container and a first delivery pipe. The internal container has a first space for containing a fluid to be delivered. The external container substantially surrounds the internal container to form a substantially sealed second space between the internal container and the external container, wherein the second space is for an assistant liquid. The assistant liquid is heated to raise the pressure in the second space, and then, the internal container is pressed, thereby driving the fluid out along the first delivery pipe.