Abstract: A method for removing and preventing discharge into the atmosphere of carbon dioxide from combustion gases and natural gas from installations for production of oil and/or gas, wherein the combustion gas is passed to an absorber containing a solvent, where carbon dioxide is absorbed in the solvent, and the thereby purified combustion gas, largely free of carbon dioxide, is released into the atmosphere, where the CO2 rich solvent is passed to a desorber where CO2 is removed from the solvent, and the thereby largely CO2-free solvent is recycled to the absorber, and the separated CO2 gas is passed to a compression stage for compression and utilization and/or disposal in a suitable manner, where membrane gas/liquid contactors are employed in both the absorber and the desorber, and that an external stripping steam is supplied to the desorber.

Abstract: The invention concerns a method for cooling containers, wherein cold is generated in a primary circuit containing a cooling medium. Cold is supplied via a heat exchanger to a cold carrier in a secondary circuit. The secondary circuit's cold carrier flows into a container through pipes with releasable couplings, transferring cold to the container through a heat exchanger. Cold is stored in one or more cold stores in the secondary circuit, in or outside the container, for subsequent emission in the event of an interruption in the cold supply. The invention also concerns a cooling system for implementation of the method.

Abstract: A yawing system for a wind turbine is provided. The system adjusts the wind turbine into a required wind direction against the wind by turning the turbine about a yawing axle (14) and counteracts periodic vibrations in a nacelle of the turbine as it turns around the yawing axle from being transmitted as pulsating moments to a tower structure. At least one hydraulic motor (34) turns the nacelle (12) about the yawing axle (14). A controllable throttle valve (50) is disposed in a parallel line to the hydraulic motor (34). A regulator (30) is capable of changing an opening diameter of said throttle valve (50) in accordance with a position of the nacelle in relation to the wind direction such that the periodic vibrations are utilized for turning the nacelle and correcting for changes in the wind direction during operation by a successive movement of the nacelle in small steps in the required wind direction during each periodic vibration around the yawing axle and at the same time as the nacelle is dampened.

Abstract: A control system for achieving optimum use of the energy from a vessel's main energy source. The vessel control system includes a main energy source, a generator device, at least one motor, and a power line network connecting the main energy source, the generator device and the at least one motor. The system further includes a maneuvering device for controlling the main energy source, the generator device and the at least one motor. A global positioning system is provided in the control system, together with a programmable logic control device for receiving information from at least one of the maneuvering device and the global positioning system, and for transmitting control impulses to the at least one motor for operation thereof based on an optimization data program for obtaining desired movement of the vessel.

Abstract: A power unit with a diesel free piston device which is fed with air from a compressor device (96), and whose exhaust gas runs a turbine (150). The device has a cylinder (12) with two pistons (24, 26) which are movable in anti-phase and which between them define a combustion chamber (54). The cylinder end sections (36, 38) comprise buffer end chambers (56, 58). An electronic device (160) controls the pressure of the air in the end chambers (56, 58, 256, 258). A central piston section (48, 50) of each piston together with a related cylinder section (40, 42) forms a piston pump chamber (68, 70) which supplies the device's inlet manifold (80) and a mixing chamber (148) with compressed air, exhaust gases and the compressed air being mixed in the mixing chamber before being passed to the turbine (150). The electronic device (160) also controls the pressure of the air in the compression chambers (68, 70) by means of the compressor device, valves, pressure sensors, etc.

Abstract: A method for removing and preventing emissions into the atmosphere of carbon dioxide (CO.sub.2) from exhaust gases from gas turbines for the production of oil and gas, comprising the following steps: (a) natural gas and air are introduced into a gas turbine in which natural gas is converted to mechanical energy; (b) the exhaust gas from the gas turbine is passed through a heat recovery unit for recovery of the heat content in the exhaust gas; (c) after emitting heat in the recovery unit whereby the temperature of the exhaust gas has been reduced to 20.degree.-70.degree. C., the exhaust gas is passed to an absorption column containing an absorption liquid, where the carbon dioxide is absorbed in the said liquid, and the thereby purified exhaust gas, essentially free of carbon dioxide, is vented to the atmosphere; (d) the absorption liquid which contains CO.sub.2 is passed to a stripping column where the CO.sub.2 is removed from the absorption liquid heated to a temperature of 120.degree.-150.degree. C.

Abstract: A chain link (1) consists of two loops (2a, 2b) and two sides (3a, 3b), and a post (5) welded in between the chain link's sides (3a, 3b). The post (5) has sections (7) of reduced thickness against the chain link's sides (3a, 3b) in order to produce weld grooves for welding the post (5) to the chain link's sides (3a, 3b) with a through-weld. A sacrificial anode (9) is affixed around the chain link's post (5), by means of casting, welding or clamping.

Abstract: A water jet propulsion unit for a waterborne craft comprising a propeller pump having a pump housing outside the outlet opening of which there is provided a steering portion which makes possible the turning of the vessel as well as the retarding and reversing thereof. The steering portion includes a support bearing structure mounted at the outlet opening to be swung about a vertical axis designed to have two parallel side plates between which a steering nozzle is pivotally mounted about a horizontal axis. Below the steering nozzle, designed to have a rectangular cross section and between the two side plates, a reversing bucket is pivotally mounted. This reversing bucket is link connected to the steering nozzle so that when the fore end of the steering nozzle is swung upwards, it will swing from a position up under the steering nozzle to a downwardly swung position.