Patents Assigned to GREENFIELD SOLAR CORP.
  • Publication number: 20100006139
    Abstract: System(s) and method(s) are provided for assembling and utilizing parabolic reflectors in a solar concentrator. Parabolic reflectors assembly starts with a low-cost, flat reflective material that is bent into a parabolic or through shape via a set of support ribs that are affixed in a support beam. The parabolic reflectors are mounted on a support frame in various panels or arrays to form a parabolic solar concentrator. Each parabolic reflector focuses light in a line segment pattern. Light beam pattern focused onto a receiver via the parabolic solar concentrator can be optimized. The receiver is attached to the support frame, opposite the parabolic reflector arrays, and includes a photovoltaic (PV) module and a heat harvesting element that enable dual-mode energy conversion operation. To increase performance of the parabolic solar concentrator, the PV module can be configured to advantageously exploit a light beam pattern optimization regardless irregularities in the pattern.
    Type: Application
    Filed: July 1, 2009
    Publication date: January 14, 2010
    Applicant: GREENFIELD SOLAR CORP.
    Inventors: Terry L. Zahuranec, Neil D. Sater, Bernard L. Sater
  • Publication number: 20100000519
    Abstract: A solar collector can be rotated and tilted about a polar mount. The solar collector can be designed such that the center of gravity of the collector is aligned with the axis of the polar mount facilitating the use of smaller positioning devices. The collector can be placed in a position to prevent damage by inclement weather and allow easy access for maintenance and installation.
    Type: Application
    Filed: July 1, 2009
    Publication date: January 7, 2010
    Applicant: GREENFIELD SOLAR CORP.
    Inventors: James Thomas Zalusky, Terry L. Zahuranec
  • Publication number: 20100000594
    Abstract: Systems and methods that regulate (e.g., in real time) heat dissipation from solar concentrators. A heat regulating assembly removes heat from the PV cells and other hot regions, to maintain the temperature gradient within predetermined levels. A control component can regulate (e.g., automatically) operation of valves (which the cooling medium flows through) based on sensor data (e.g., measurement of temperature, pressure, flow rate, velocity of the cooling medium, and the like throughout the system.
    Type: Application
    Filed: June 30, 2009
    Publication date: January 7, 2010
    Applicant: GREENFIELD SOLAR CORP.
    Inventors: James Thomas Zalusky, Neil D. Sater, Terry L. Zahuranec
  • Publication number: 20100004797
    Abstract: When using a solar concentrator to obtain energy collected by a sun, it can be beneficial to place the concentrator accurately. As the concentrator moves, a position of the concentrator with respect to gravity can be determined, commonly though use of an inclinometer. A comparison can be made of the determined position against a desired position can be made to determine if the concentrator should move. If a positive determination is made, then the concentrator can be moved accordingly.
    Type: Application
    Filed: June 30, 2009
    Publication date: January 7, 2010
    Applicant: GREENFIELD SOLAR CORP.
    Inventor: James Thomas Zalusky
  • Publication number: 20100000522
    Abstract: Provided is a solar collector assembly that can be manufactured, assembled, and maintained efficiently. A number of arrays that include one or more reflective material formed in a parabolic shape can be attached to a backbone. The backbone is attached to a polar support that is positioned at or near the center of gravity for the solar collector assembly. The polar support at or near the center of gravity allows the entire assembly to be tilted, rotated and/or lowered for various purposes (e.g., service, maintenance, safety). The solar collector assembly can be transported as modular units and/or in a partially assembled state.
    Type: Application
    Filed: June 30, 2009
    Publication date: January 7, 2010
    Applicant: GREENFIELD SOLAR CORP.
    Inventor: Terry L. Zahuranec
  • Publication number: 20100000517
    Abstract: Tracking the position of the sun is provided where light from sources other than direct sunlight can be ignored. In particular, lights from various sources can be passed through differently angled polarizers to determine radiation energies from the polarizers. This can indicate whether the original light is polarized or substantially non-polarized, like the sun. Additionally, the light can be passed through a spectral filter to reject light not falling within a spectrum of wavelengths or having weak intensity with respect to direct sunlight. Subsequently, the light can pass through a ball lens and quadrant cell configuration to optimally align a device or apparatus to receive the direct sunlight. Additionally, the size of a focus point of the light through the ball lens and onto the quadrant cell can determine a collimation of the light, which can indicate direct sunlight as well.
    Type: Application
    Filed: June 30, 2009
    Publication date: January 7, 2010
    Applicant: GREENFIELD SOLAR CORP.
    Inventor: James Thomas Zalusky
  • Publication number: 20100002237
    Abstract: A system (and corresponding methodology) for testing, evaluating and diagnosing quality of solar concentrator optics is provided. The innovation discloses mechanisms for evaluating the performance and quality of a solar collector via emission of modulated laser radiation upon (or near) a position of photovoltaic (PV) cells. The innovation discloses positioning two receivers at two distances from the source (e.g., solar collector or dish). These receivers are employed to collect modulated light which can be compared to standards or other thresholds thereby diagnosing quality of the collectors.
    Type: Application
    Filed: July 1, 2009
    Publication date: January 7, 2010
    Applicant: GREENFIELD SOLAR CORP.
    Inventor: James Thomas Zalusky