Abstract: Methods and devices for sealing a storage vessel or other apparatus are provided. A piston moves from a first position to a second position within a body to compress a sealing element, such as a metallic ring. One or more attachment elements connect the piston to the body. A removable pipe can be used for pump-out.

Abstract: There is provided an energy capture system. The system may comprise one or more rotor blades or solar panels and a compressor. The compressor is configured to be driven by the one or more rotor blades or solar panels to draw gas and to compress the gas, thereby producing a compressed material. The system further comprises a pressure receiver coupled to an output of the compressor and configured to receive the compressed material from the compressor. The system further comprises an energy recovery unit coupled to the pressure receiver and configured to receive the compressed material from the pressure receiver. The energy recovery unit is configured to generate mechanical and/or electrical energy using the compressed material.

Abstract: Storage systems and methods of manufacturing and using the same. A storage tank is provided with an inner vessel, an outer vessel, and a support system between the vessels. The support system may comprise a repeating pattern of openings that effectively lengthens the heat path between the inner and outer vessels.

Abstract: An anaerobic digestion system is provided. The system includes a biomass storage container and a cover positioned over the biomass storage container, where the cover is sealed at an outer edge of the anaerobic digester. Weights may be arranged on the surface of the cover, and the sealed edges may form a water collection region. Additional systems, including thermal management, gas processing, energy storage and recovery, and sensing can also be included.

Abstract: Systems and methods for the storage and delivery of fuel, such as methane. In certain aspects, a system is provided with an inner vessel, and outer vessel, and a rope suspension system connecting the two vessels. In certain aspects, the disclosed storage tanks operate at low pressure with long hold times, and have a non-cylindrical shape.

Abstract: Systems and methods for the storage and delivery of fuel, such as methane. In certain aspects, a system is provided with an inner vessel, and outer vessel, and a rope suspension system connecting the two vessels. In certain aspects, the disclosed storage tanks operate at low pressure with long hold times, and have a non-cylindrical shape.

Abstract: Systems and methods for storing materials, such as cryogenic materials, with inner and outer vessels of a storage tank that mutually support each other. An inner vessel may also have a webbing, such as a rope lattice, that provides additional support for the storage tank.

Abstract: An anaerobic digester is provided. The anaerobic digester includes a biogas storage container comprising a semi-permeable membrane separating the biogas storage container into a first space and a second space, such that the first space is configured to be methane enriched and the second space is configured to be CO2 enriched. The anaerobic digester further includes a cover positioned over the biogas storage container for protecting the biogas storage container against the elements.

Abstract: Systems and methods for growing vegetation are provided. The disclosed systems (100) and methods (1100, 1200) use rotating growth mats (102) and a cutting device (112). The rotating growth mats and cutting device can be coupled to an anaerobic digester (402) to generated methane gas using vegetation grown on the growth mats. The systems and methods may further use C artificial light sources (108) and a nutrients delivery system (110) to assist growth.

Abstract: Systems and methods use sound waves for evaluating a fuel. The fuel supplied from a storage tank to an engine by a feed pipe can be evaluated by determining its properties based on the velocity of one or more sound waves in the fuel.

Abstract: Systems and methods for the storage and delivery of fuel, such as methane. In certain aspects, a system is provided with an inner vessel, and outer vessel, and a rope suspension system connecting the two vessels. In certain aspects, the disclosed storage tanks operate at low pressure with long hold times, and have a non-cylindrical shape.

Abstract: Systems and methods for growing vegetation are provided. The disclosed systems (100) and methods (1100, 1200) use rotating growth mats (102) and a cutting device (112). The rotating growth mats and cutting device can be coupled to an anaerobic digester (402) to generated methane gas using vegetation grown on the growth mats. The systems and methods may further use C artificial light sources (108) and a nutrients delivery system (110) to assist growth.

Abstract: A linear motor (220) suitable for use with a cryogenic cooler is described. The arrangement comprises first and second annular magnets (100 and 110), which in the preferred embodiment are nested and share a common axis. A circular bore (190) is defined about the common axis and is able to receive a drive shaft (220). The drive shaft (220) is connected to a base member (210) which has an annular peripheral region (200) in which a coil (200) is defined. Coil (200) has poles (150 and 160). The coil (200) when energised causes reciprocal motion of the drive shaft (220). The coil (200) per se is able to move into and out of an annular cavity (170) defined between the nested magnets (100 and 110).