Clean & Renewable Energy
Energy Mixer

Brief

Harvesting energy from multiple energy sources

Technology Overview

There is a market need for energy harvesting technologies due to the increasing adoption of mobile and portable devices. The developed energy mixer enables energy harvest from multiple energy sources. The energy mixer is comprised of two active diodes coupled between separate input nodes and output nodes, two capacitors coupled between each input node and additional nodes, switching circuitry, and control circuitry.


Inventors
  • Baker Mohammad
  • Hani Saleh
  • Mohammed Elnaggar
  • Mohammad Al Hawari
Competitive Advantage
  • Enables efficient mixing of energy generated from multiple sources
  • Prevents system startup cycle in situations of insufficient voltage generation
  • Eliminates wasteful voltage drops
Market Application
  • Alternative energy
  • Energy harvesting/power management
  • Circuits
Intellectual Property

U.S. 9,973,007

Contact

ip@ku.ac.ae

Vibrational Energy Harvesting System

Brief

Self-power system to eliminate accessory charger forever

Technology Overview

An energy harvesting system had been developed to convert mechanical vibrations into electrical energy for the purpose of powering electronic devices. The design includes two energy harvesting units that convert mechanical vibrations into AC signals, AC-DC converters configured to convert the generated AC voltage to a DC voltage, and a DC-DC converter configured to receive and store energy from the regulated DC signal.


Inventors
  • Baker Mohammad
  • Mahmoud Al Ahmad
Competitive Advantage
  • Improves power management of electronic devices by harvesting energy from mechanical vibrations
  • Provides a self-contained, autonomous self-powered system
  • Designed for low-cost assembly at commercial scale
Market Application
  • Alternative energy
  • Energy harvesting/power management
  • Conversion of vibrations into electrical energy to power electronic devices
Intellectual Property

U.S. 9,748,872

Contact

ip@ku.ac.ae

Method for Conversion of Halophytic Biomass to Biogas via Thalassic Anaerobic Digestion

Brief

Sustainable method of producing biogas from saline organic solids

Technology Overview

Biofuel production using land crops is generally criticized due to environmental and economic limitations. The developed method converts halophytic plant biomass containing saline organic solids into biogas. The method involves the addition of a halophilic microbial culture to the halophytic plant biomass for digestion under anaerobic conditions to produce methane. In addition, the method could include pretreatment of the biomass under mild physicochemical conditions to improve yield.


Inventors
  • Jorge Rodriguez
  • Joao Uratani
Competitive Advantage
  • Operates with saline as liquid media
  • Improves energy production yields
  • Leads to biological conversion of organic matter into biogas
  • Increases the bioavailable fraction of the biomass for conversion into biogas
Market Application
  • Alternative energy
  • Biogas production
  • Halophyte substrates
Intellectual Property

U.S. 9,422,579

Contact

ip@ku.ac.ae

Apparatus and Method for Energy Harvesting

Brief

Converting vibrations into power for electronic devices

Technology Overview

An energy harvesting apparatus and method have been developed to convert environmental vibrations into electrical energy for the purpose of powering electronic devices. The design includes a piezoelectric component that can generate an AC voltage, an AC-DC converter configured to convert the generated AC voltage to a DC voltage, an output for sending the generated current to an electronic device, and a feedback loop.


Inventors
  • Irfan Saadat
  • Mahmoud Al Ahmed
Competitive Advantage
  • Improves power management of electronic devices by harvesting energy from environmental vibrations
  • Provides a self-contained, autonomous self-powered system
  • Designed for low-cost assembly at commercial scale
Market Application
  • Alternative energy
  • Energy harvesting/power management
  • Conversion of vibrations into electrical energy to power electronic devices
  • Wireless communication
  • Circuits
Intellectual Property

U.S. 9,455,649

Contact

ip@ku.ac.ae

Fault-Tolerant Wind Energy Conversion System

Brief

Enables widespread adoption of wind energy by improving reliability

Technology Overview

To improve the reliability of power systems with large-scale wind power integration, different countries have specified fault ride through requirements for wind turbines in their respective grid codes. The fault tolerant system has been developed for a wind-based generation system using a doubly-fed induction generator (DFIG). The system is comprised of a DFIG wind turbine with a rotor and a stator coupled to an electrical grid, rotor-side converters, and a nine-switch convertor circuit.


Inventors
  • Vinod Khadkikar
  • Bharah Ambatii
  • Parag Kanjiya
Competitive Advantage
  • Improves the reliability of power systems with large-scale wind power integration
  • Allows for seamless operation during a variety of grid faults and strictly satisfies grid code requirements
  • Enables generation of power with high-efficiency 
Market Application
  • Power generation
  • Power grids
  • Renewable energy – wind turbines
Intellectual Property

U.S. 9,425,726

Contact

ip@ku.ac.ae

Fault Handling System for Doubly Fed Induction Generator

Brief

Improves fault handling in grid-connected systems

Technology Overview

The system is a fault ride through (FRT) transient management system configured to enhance the FRT capability of doubly-fed induction generator (DFIG)-based wind turbines. The system is comprised of a DFIG wind turbine, rotor-side converters, grid side converters, power electronic switches for system reconfiguration, a series braking resistor, a shunt braking resistor, a low-pass LC filter, and a series transformer.


Inventors
  • Mohamed Moursi
  • Po-Hsu Huang
  • Weidong Xiao
Competitive Advantage
  • Utilizes a grid-side converter and transient management scheme using shunt and series grid interface topologies to improve FRT capability
  • Balance voltage regulation performance and transient stability margins with consideration for various operating conditions
  • Uses low component count and a simple protection structure
Market Application
  • Power generation
  • Power grids
  • Renewable energy (wind turbines)
Intellectual Property

U.S. 9,461,573

Contact

ip@ku.ac.ae

Tunable Ultrasound Transducers

Brief

Broadening market applications for ultrasound transducers

Technology Overview

Piezoelectric micromachined ultrasound transducers (PMUTs) have emerged as a substitute to conventional ultrasonic sensors. A typical PMUT is a suspended membrane clamped at its edges and driven through piezoelectric effect by the application of an AC voltage. The tunable ultrasound transducers developed provided a range of operating frequencies that cannot be optimally addressed by a single transducer.


Inventors
  • Firas Sammoura
  • Sang-Gook Kim
Competitive Advantage
  • Enables construction of a PMUT that can be tuned with an applied current or voltage
  • Addresses applications that have multiple operating frequencies or ranges of operating frequencies
  • Includes a variety of micromachined structures for a wide range of applications
Market Application
  • Medical imaging
  • Fingerprint sensing
  • Consumer electronics
  • Industrial applications
  • Automotive applications
Intellectual Property

U.S. 8,723,399

Contact

ip@ku.ac.ae

Radiometers for Measuring Circumsolar Profiles

Brief

Low-cost, portable, and reliable solution for radiation measurement

Technology Overview

Solar radiation on the earth’s surface is not only due to the direct radiation from the solar disk but also from an aureole around the solar disk. The inability to accurately measure radiation results in inefficiencies in solar power generation. The radiometers developed helps to establish optical design parameters that impact the thermodynamic performance, and consequently the economic outcomes, of solar power generation systems.

 


Inventors
  • Peter Armstrong
  • Ragini Kalapatapu
  • Matteo Chiesa
Competitive Advantage
  • Delivers accurate radiation measurements 
  • Provides a low-cost, reliable solution for routine use in solar resource assessment and atmospheric aerosol investigations
  • Enables use of portable field instruments for measuring sunshape profiles automatically and unattended
Market Application
  • Solar power generation
  • Radiometers
  • Portable field instruments
Intellectual Property
  • U.S. 8,981,272
  • U.S. 9,500,516
Contact

ip@ku.ac.ae

Biodegradable Composite Materials

Brief

Sustainable solution for product packaging and other applications

Technology Overview

The developed method can be used to make a biodegradable composite using an aqueous mixture comprised of partially hydrolyzed cellulose in a dissolution media; combing the mixture with a solution of an aliphatic polyester in a polar organic solvent; removing solvent and dissolution media to form a wet biodegradable composite; and drying the wet biodegradable composite to form a dry biodegradable composite.


Inventors
  • Raed Hashaikeh
  • Krishnamachari Parakalan
Competitive Advantage
  • Tunable process that can be used to create a broad range of composite materials
  • Yields significant improvement in the mechanical and thermal stability
  • Enhances the bonding of the material
Market Application
  • Biodegradable materials
  • Product packaging
  • Tissue engineering
Intellectual Property

U.S. 8,691,893

Contact

ip@ku.ac.ae