Dolphin N2 Limited

Highview Enterprises Limited

Ceres Intellectual Property Company Limited

Robert Morgan

Andrew Farquhar Atkins

Paul Barnard

Stephen Gareth Brett

Adam Gurr

James Eatwell

Robert Leah

Nicola Castellucci

Matthew Keenan

Stuart Nelmes

Richard Osborne

Ken Pendlebury

Andrew Ward

James Devriendt

Christopher John Evans

Michael Dearman

Matthew Harrington

Mark Selby

Rhys Pickett

Bruce Girvan

Farzad Barari

John Daniel Alastair Harris

A split cycle internal combustion engine comprising a compression cylinder accommodating a compression piston; a combustion cylinder accommodating a combustion piston; a crossover passage between the compression cylinder and the combustion cylinder arranged to provide working fluid to the combustion cylinder; a controller arranged to determine a peak temperature of combustion in the combustion cylinder based on a received indication of a peak temperature of combustion in the combustion cylinder; and a coolant system arranged to regulate a temperature of the working fluid supplied to the combustion cylinder; wherein, in response to determining that the peak temperature of combustion exceeds a selected threshold, the controller is configured to control the coolant system to regulate the temperature of the working fluid supplied to the combustion cylinder so that a peak temperature of combustion in the combustion cylinder is less than the selected threshold.

Split cycle engine

A split cycle internal combustion engine includes a combustion cylinder accommodating a combustion piston and a compression cylinder accommodating a compression piston. The engine also includes a controller arranged to receive an indication of a parameter associated with the combustion cylinder and/or a fluid associated therewith and to control an exhaust valve of the combustion cylinder in dependence on the indicated parameter to cause the exhaust valve to close during the return stroke of the combustion piston, before the combustion piston has reached its top dead centre position (TDC), when the indicated parameter is less than a target value for the parameter; and close on completion of the return stroke of the combustion piston, as the combustion piston reaches its top dead centre position (TDC), when the indicated parameter is equal to or greater than the target value for the parameter.

A split cycle internal combustion engine apparatus includes a combustion cylinder accommodating a combustion piston and a compression cylinder accommodating a compression piston. The apparatus is arranged to provide compressed fluid to the combustion cylinder. The compression cylinder is coupled to a first liquid coolant reservoir and a second liquid coolant reservoir. A controller is arranged to receive an indication of at least one parameter associated with the engine, and control delivery of at least one of the first liquid coolant from the first liquid coolant reservoir and the second liquid coolant from the second liquid coolant reservoir to the compression cylinder based on the indication of the at least one parameter such that the at least one liquid coolant vaporises into a gaseous phase during a compression stroke.

Split cycle internal combustion engine

A liquid coolant injector for injecting a liquid coolant into a cylinder of a split cycle engine, wherein the liquid coolant has been condensed into a liquid phase via a refrigeration process, the injector comprising, a thermally insulating housing, a liquid coolant inlet, a liquid coolant outlet in fluid communication with the liquid coolant inlet via a liquid coolant flow path wherein the liquid coolant flow path extends through the thermally insulating housing, the thermally insulating housing configured to inhibit vaporisation of the liquid coolant within the liquid coolant flow path, a valve closure member, moveable between a first position in which the valve closure member blocks the liquid coolant flow path and a second position in which the liquid coolant may flow from the liquid coolant inlet to the liquid coolant outlet, and, a driver operable to move the valve closure member between the first and second position in response to a control signal.

Injector

A fuel cell system comprising a controller, a temperature sensor that has a physical presence in a conduit within the system to measure the temperature of the fluid at a point within the conduit (T) and a wall temperature sensor for sensing a temperature of a wall of the conduit (T). The controller takes Tand Tas inputs and applies an equation with known constants to calculate measurement error of Tbased on the local flow temperature and geometry and arrives at a calculated temperature. The equation may be applied iteratively until the difference between the calculated temperature and Tis below an acceptable value when the calculated temperature can then be assumed to be an accurate representation of the actual gas temperature at the Tmeasurement point. The direction of calculation is controlled by the relative difference between Tand T.

Temperature measuring method

Cryogenic energy storage systems, and particularly methods for capturing cold energy and re-using that captured cold energy, are disclosed. The systems allow cold thermal energy from the power recovery process of a cryogenic energy storage system to be captured effectively, to be stored, and to be effectively utilised. The captured cold energy could be reused in any co-located process, for example to enhance the efficiency of production of the cryogen, to enhance the efficiency of production of liquid natural gas, and/or to provide refrigeration. The systems are such that the cold energy can be stored at very low pressures, cold energy can be recovered from various components of the system, and/or cold energy can be stored in more than one thermal store.

Method and apparatus for power storage

Methods and apparatus for storing thermal energy are disclosed. The thermal energy may be hot or cold. The methods and apparatus allow the thermal store to be charged and discharged at different rates. The methods and apparatus also allow the thermal store to be charged and discharged with multiple and/or interrupted phases.

Method and apparatus for storing thermal energy in thermal masses for electricity generation

Cryogenic energy storage systems, and particularly methods for capturing cold energy and re-using that captured cold energy, are disclosed. The systems allow cold thermal energy from the power recovery process of a cryogenic energy storage system to be captured effectively, to be stored, and to be effectively utilized. The captured cold energy could be reused in any co-located process, for example to enhance the efficiency of production of the cryogen, to enhance the efficiency of production of liquid natural gas, and/or to provide refrigeration. The systems are such that the cold energy can be stored at very low pressures, cold energy can be recovered from various components of the system, and/or cold energy can be stored in more than one thermal store.

A boiler unit () housed in an enclosure, the boiler unit () configured to receive a solid state combined heat and power generating device (). The boiler unit () comprises a heating device () to produce heat; and a control unit () to independently control each of the heating device () and the solid state combined heat and power generating device (). The boiler unit () is operable without the solid state combined heat and power generating device () being present.

Boiler unit

There is disclosed a device and method for the generation of zero emission electricity that can be used to provide load balancing and emergency support to a electricity distribution network or back up electricity to a critical consumer such as a hospital or data center. The system uses a cryogenic fluid and a source of low grade waste heat. A cryogenic fluid is first evaporated by an evaporator () heated by a superheater () before entering an expansion turbine () to produce electricity.

Electricity generation device and method employing cryogenic fluid, evaporator, superheater, and expansion turbine

The present invention relates to methods of integrating one or more thermal processes with one another, wherein the thermal processes to be integrated have different supply and demand criteria for thermal energy. The method involves the use of one or more thermal stores.

Growing community of inventors

West Sussex, United Kingdom

Robert Morgan