Prince Mohammad Bin Fahd University

Muhammad Asad

Muhammad Azhar Ali Khan

Mushtaq Khan

Abdul Aziz Afzal

Muhammad Imran Khan

Shams Ameen Almomen

Leen Hassan Al Badah

Lina Ashraf Altahini

Ahad Khalid Alghamdi

Razan Salem Abuzaid

Mohammed Alhulaimi

Majed Inkis

Alanood Almoaikel

Lujain Alshuhail

Zainab Alsaigh

Bayan Aljishi

Zuhair Kanwal

Hisham Muhammad Imran

Sultan Abumustafa

Yousef Almulla

Abdulrahman Alghamdi

An electricity generation system including an electricity generating plant with a turbine, a dynamo and a solar power plant having an absorber tube for a parabolic trough solar power plant that includes a glass pipe which extends from a first end to a second end of a parabolic trough, a helical pipe enclosed within the glass pipe. A sand filled pipe is surrounded by the helical pipe. An inner pipe extends from the first end to the second end of the parabolic trough along the central axis of the glass pipe. A solenoid valve is configured to block the water from entering the inner pipe when the solenoid valve is closed and release the water to the inner pipe when the solenoid valve is opened. The turbine is fluidly connected to the solar power plant to receive the steam and produce mechanical energy which rotates the dynamo.

Solar steam electricity system

A self-operable centrifugally-activated brake system adapted for a wheeled device. The braking system includes a wheel having a hub, a rim, spokes extending between the hub and rim, and a rod extending between the hub and rim. A helical spring surrounds the rod, with a fixed end attached to the hub and a free end movable along the longitudinal direction of the rod. A brake mass structure is attached to the free end of the helical spring and includes a cylindrical pin structure. A main frame connects to the hub of the wheel. An extension structure extends from the main frame and includes a spacing segment and a hook segment having a groove configured to engage with the pin structure.

Centrifugally-activated brake system for a wheeled device

A wheelchair having an emergency brake system in which a wheel of the wheelchair has a hub, a rim, spokes extending between the hub and rim, and a rod extending between the hub and rim. A helical spring surrounds the rod, with a fixed end attached to the hub and a free end movable along the longitudinal direction of the rod. A brake mass structure is attached to the free end of the helical spring and includes a pin structure. A main frame connects to the hub of the wheel. An extension structure extends from the main frame and includes a spacing segment and a hook segment having a groove configured to engage with the pin structure. At a speed threshold, the pin structure engages the groove of the hook segment to prevent acceleration of the wheelchair.

Wheelchair with emergency brake system

A feeder system includes a donut-ring-shaped first wheel having a first groove recessed below its top surface, with a first hopper positioned above to receive material. A first conduit connects the hopper bottom to the groove, defining a feeding path. A mixer unit receives materials, connected to the first groove via a first suction head. A first motor rotates the first wheel, transferring material from hopper to groove to mixer unit. A donut-ring-shaped second wheel includes a second groove, second hopper, and second conduit. A second suction head connects this groove to the mixer unit, while a second motor enables wheel rotation for material transfer. The mixer unit combines both materials. The feeder system implements coaxial wheel arrangement with independent material flow control, enabling independent powder delivery for additive manufacturing applications.

Enclosed multi-disk powder feed system

A distributed electricity grid that includes solar powered energy producing facilities, substations, and electricity transmission lines. The solar powered energy producing facilities are in electrical connection with the substations through one or more of the electricity transmission lines. Each solar powered energy producing facility includes an electricity generating plant having a turbine and a dynamo that are mechanically connected, and a parabolic trough solar power plant that contains a glass pipe in a parabolic trough, a helical pipe enclosed within the glass pipe configured to hold water, a sand filled pipe surrounded by the helical pipe, an inner pipe centered within the sand filled pipe, and a solenoid valve connected between the helical pipe and the inner pipe.

Solar electrical grid with distributed solar generation

Stacked disk powder feed system

A bicycle having a brake system for emergency or backup braking. The brake system include a wheel having a hub, a rim, spokes extending between the hub and rim, and a rod extending between the hub and rim. A helical spring surrounds the rod, with a fixed end attached to the hub and a free end movable along the longitudinal direction of the rod. A brake mass structure is attached to the free end of the helical spring and includes a pin structure. A main frame connects to the hub of the wheel. An extension structure extends from the main frame and includes a spacing segment and a hook segment having a groove configured to engage with the pin structure. At a speed threshold, the pin structure engages the groove of the hook segment to prevent acceleration of the wheel.

Bicycle with backup braking

A multi powder mixing system includes first, second and third wheels each having a first groove recessed below its top surface, with first, second and third hoppers positioned above the wheels. First, second and third conduits connect the hopper bottoms to the grooves, defining feeding paths. A mixer unit receives materials, connected to the grooves via first, second and third suction heads. First, second and third motors rotate the respective wheels, transferring powdered materials from the hoppers to the grooves to the mixer unit. The mixing system has a coaxial wheel arrangement with independent material flow control providing controlled powder mixing.

Multi powder mixing system

A brake system includes a wheel having a hub, a rim, spokes extending between the hub and rim, and a rod extending between the hub and rim. A helical spring surrounds the rod, with a fixed end attached to the hub and a free end movable along the longitudinal direction of the rod. A brake mass structure is attached to the free end of the helical spring and includes a pin structure. A main frame connects to the hub of the wheel. An extension structure extends from the main frame and includes a spacing segment and a hook segment having a groove configured to engage with the pin structure. When the wheel rotates, the brake mass structure moves away from the hub along the rod. At a speed threshold, the pin structure engages the groove of the hook segment to prevent acceleration of the wheel.

Brake system for a wheeled device

A method for generating electricity with a system having a water tank, an electricity generating plant and a parabolic trough solar power plant including transferring water from the water tank to the solar power plant. The water is received in a helical pipe located within a glass pipe encasing an absorber tube of a parabolic trough solar power plant. The glass pipe and the helical pipe extend from a first end to a second end of a parabolic trough along a central axis of the glass pipe an. During periods of high irradiance the water is converted in the helical pipe to steam by focusing solar radiation on the absorber tube. A sand filled pipe extends from the first end to the second end of the parabolic trough along the central axis of the glass pipe Steam is expelled from the helical pipe. During periods of low irradiance the water is released the water within the helical pipe to the inner pipe located within the sand filled pipe, converting the water to steam with the heated sand in the sand filled pipe, expelling the steam, transferring the steam to a turbine to generate mechanical energy in the turbine, and transferring the mechanical energy to generate electricity.

Method for generating electricity with solar heat pipe absorber

Method for powder flow control

Powder flow feed system

A method and system for transporting and delivering fine solids in the form of powders includes a wheel-based coax control systems with individually controlled and motored wheels functioning to feed the solids. The apparatus includes a first wheel having a groove that permits powder flow. A hopper positioned above the wheel stores material to be fed to a conduit connected to the hopper thereby defining a feeding/flow path. A mixer unit is connected to the groove via a first suction head and a motor rotates the wheel, transferring powder from the hopper to the groove an into mixer unit. The method and system provide a coaxial wheel arrangement with independent material flow control.

Method and apparatis for transport of fine solids including powders

An absorber tube for a parabolic trough solar power plant is described. The absorber tube includes a glass pipe that extends from a first end to a second end of the parabolic trough. A helical pipe is enclosed within the glass pipe. The helical pipe is configured to hold water. A sand filled pipe is surrounded by the helical pipe. The absorber tube further includes an inner pipe, centered within the sand filled pipe and the inner pipe extends from the first end to the second end of the parabolic trough along a central axis of the glass pipe. A solenoid valve is connected between the helical pipe and the inner pipe. The solenoid valve is configured to block the water from entering the inner pipe during periods of high solar irradiance and release the water to the inner pipe during periods of low solar irradiance.

Growing community of inventors

Dhahran, Saudi Arabia

Muhammad Asad