Systems and methods are described for sequestering carbon stored in organic matter while minimizing the release of carbon dioxide (CO.sub.2) and methane (CH.sub.4) into the atmosphere, with the carbon (C) being stored as char or coal through the coalification process. Organic matter will be moved to submarine hydrothermal vent fields where the extreme heat in the water will drastically accelerate the degradation of the material and destroy microbes that normally consume the organic material and release the carbon as CO.sub.2 or CH.sub.4. The oxygen level in the heated water around the vents is extremely low. The water surrounding these vents can reach temperatures of 400° C. (750° F.). Exemplary implementations may include constructing hydrothermal borehole vents to harness the energy continuously released from the Earth's core in the form of volcanic heat.

An offshore power generation structure comprising a submerged portion having a first deck portion comprising an integral multi-stage evaporator system, a second deck portion comprising an integral multi-stage condensing system, a third deck portion housing power generation equipment, cold water pipe; and a cold water pipe connection.

An offshore power generation structure comprising a submerged portion having a first deck portion comprising an integral multi-stage evaporator system, a second deck portion comprising an integral multi-stage condensing system, a third deck portion housing power generation equipment, cold water pipe; and a cold water pipe connection.

An apparatus includes first and second tanks each configured to receive and store a refrigerant under pressure. The apparatus also includes a cylinder defining a space configured to receive the refrigerant from the first and second tanks. The apparatus further includes a piston passing into the cylinder and having a head, where the head divides the space within the cylinder into a first volume for the refrigerant from the first tank and a second volume for the refrigerant from the second tank. In addition, the apparatus includes a converter configured to translate linear movement of the piston into rotational motion and a generator configured to produce electrical power based on the rotational motion.

An apparatus includes first and second tanks each configured to receive and store a refrigerant under pressure. The apparatus also includes a cylinder defining a space configured to receive the refrigerant from the first and second tanks. The apparatus further includes a piston passing into the cylinder and having a head, where the head divides the space within the cylinder into a first volume for the refrigerant from the first tank and a second volume for the refrigerant from the second tank. In addition, the apparatus includes a converter configured to translate linear movement of the piston into rotational motion and a generator configured to produce electrical power based on the rotational motion.

The ocean thermal and hydraulic energy conversion system includes a closed loop assembly comprising a pipeline filled with a working fluid, a pump and a turbine. The system includes a first supply line to transport warm water to an evaporator and then to a junction, and a second supply line to transport cold water to a condenser and then to the junction. The evaporator evaporates the working fluid from a liquid into a vapor using the warm water and the vapor powers the turbine. A generator is connected to the turbine and generates electricity by the powered turbine. The condenser condenses the working fluid vapor to a liquid using the cold water. A hydraulic converter receives the warm and cold water from the junction and converts the hydraulic energy into electricity.

The ocean thermal and hydraulic energy conversion system includes a closed loop assembly comprising a pipeline filled with a working fluid, a pump and a turbine. The system includes a first supply line to transport warm water to an evaporator and then to a junction, and a second supply line to transport cold water to a condenser and then to the junction. The evaporator evaporates the working fluid from a liquid into a vapor using the warm water and the vapor powers the turbine. A generator is connected to the turbine and generates electricity by the powered turbine. The condenser condenses the working fluid vapor to a liquid using the cold water. A hydraulic converter receives the warm and cold water from the junction and converts the hydraulic energy into electricity.

The present application pertains to novel methods to generate power. In a representative embodiment, power is generated by warming a body of air having a temperature lower than the freezing point of liquid water by contacting the body of air with liquid water. The liquid water has a temperature greater than the freezing point of liquid water. Liquid water freezes thereby generating latent heat from freezing and thereby warming the body of air. The warmed body of air may be passed through an air turbine to generate power. Other methods and systems are described that use similar principles.

The ocean thermal and hydraulic energy conversion system includes a closed loop assembly comprising a pipeline filled with a working fluid, a pump and a turbine. The system includes a first supply line to transport warm water to an evaporator and then to a junction, and a second supply line to transport cold water to a condenser and then to the junction. The evaporator evaporates the working fluid from a liquid into a vapor using the warm water and the vapor powers the turbine. A generator is connected to the turbine and generates electricity by the powered turbine. The condenser condenses the working fluid vapor to a liquid using the cold water. A hydraulic converter receives the warm and cold water from the junction and converts the hydraulic energy into electricity.

The ocean thermal and hydraulic energy conversion system includes a closed loop assembly comprising a pipeline filled with a working fluid, a pump and a turbine. The system includes a first supply line to transport warm water to an evaporator and then to a junction, and a second supply line to transport cold water to a condenser and then to the junction. The evaporator evaporates the working fluid from a liquid into a vapor using the warm water and the vapor powers the turbine. A generator is connected to the turbine and generates electricity by the powered turbine. The condenser condenses the working fluid vapor to a liquid using the cold water. A hydraulic converter receives the warm and cold water from the junction and converts the hydraulic energy into electricity.