摘要:
A cooling system is disclosed. The cooling system may have an evaporator, an evaporator fan, a condenser, and at least one compressor. The compressor may be either a single speed or a variable speed compressor. In addition, the system can use a mechanical or electrical pulsed operation refrigerant flow control valve for controlling refrigerant flow to the evaporator.
摘要:
Described is a ballistic composite having a front impact surface and a back surface comprising. The composite may include a plurality of layers of woven fabric of polarized ballistic fibers and a metal salt, oxide, hydroxide or hydride polar bonded onto the woven fibers. In addition, a substantially water impermeable coating composition can be applied onto the layers of the woven fibers and/or on the exterior of the composite. In addition, the layers of woven fabric adjacent to the front impact surface can differ in composition from the layers of woven fabric adjacent to the back surface. In addition, the weave fabric making up the composite may have a cover factor of between about 0.6 and about 0.98.
摘要:
An HVAC/R system is configured with a variable frequency drive power supply which provides power to both a three-phase motor and to a single-phase motor. In some embodiments, the three-phase motor is a compressor motor and the single-phase motor is a condenser fan motor.
摘要:
A penetration resistant composite comprises a substrate material comprising woven, layered or intertwined polarized strands of glass, polyamide, polyphenylene sulfide, carbon or graphite fibers, a salt, oxide, hydroxide or hydride of a metal selected from the group consisting of alkali metal, alkaline earth metal, transition metal, zinc, cadmium, tin, aluminum, double metal salts and/or mixtures of two or more thereof or a metal hydride polar bonded on the surface of said fibers and/or strands of fibers at a concentration of at least about 0.3 grams/cc of open substrate material volume, and a substantially water impermeable coating thereon.
摘要:
A thermal management method of operation to cool critical heat generating components and when a critical electronic component approaches its designated maximum operation temperature or its rate of temperature increase is determined to be in excess a predetermined level, its operating speed is reduced in small increments (1% to 5%), and/or a cooling fan speed it increased in small increments, (1% to 5%), and, if necessary, operation of a variable capacity heat transfer component is induced to cool the critical component.
摘要:
A sorber heat exchanger is provided with a substrate material incorporating a sorbent for reacting with a polar gas refrigerant or hydrogen. A preferred sorbent is a metal salt capable of reacting with the polar gas refrigerant to form a complex compound. The sorbent incorporating substrate is loaded into the reactor space between the heat transfer surfaces. Incorporating the sorbent into the substrate reduces sorbent migration thereby improving performance and life expectancy of the heat exchanger.
摘要:
A cascade heat pump system is configured with variable-speed compressors which allow operation at a high system coefficient of performance for a given thermal load. An electronic control module may be utilized to dynamically vary the speed of the compressors to achieve maximum energy efficiency. Variable-speed fans or blowers may also be used.
摘要:
An enclosure or shelter having an interior chamber for housing electronic components and equipment is provided with an HVAC/R system configured with a rechargeable DC power source for power back-up to maintain substantially uninterrupted power in the case of a main power failure. The system includes one or more variable frequency drives (VFD) controlled by a VFD controller and configured to provide three-phase power to one or more three-phase AC motors and single-phase power to one or more single-phase AC motors. The system also includes a power source controller configured to select and power sources based on availability of one or more power sources and other logic.
摘要:
A microgrid controller may control the generation, distribution, storage and use of electrical power on a microgrid. Embodiments of a microgrid controller may include inputs for different types of power (e.g. AC and DC) or power sources (e.g. wind and solar), an input for utility grid power, electrical equipment for conditioning the electrical power received from the multiple sources (e.g. rectifiers and inverters), outputs to multiple types of loads (e.g. three-phase AC and single-phase AC) and control circuitry designed to control the generation, storage, distribution and usage of electrical power on the microgrid. Embodiments of microgrid systems may include multiple types of electrical generation sources (e.g. wind, solar, electromechanical and fuel cell), multiple types of electrical loads (e.g. inductive and resistive), electrical storage units (e.g. batteries) and a microgrid controller.
摘要:
A heating, ventilation, air conditioning, and refrigeration system is includes one or more variable frequency drives (VFD) controlled by one or more VFD controller, which are configured to provide three-phase power to one or more three-phase AC motors and single-phase power to one or more single-phase AC motors. The system also includes a power source controller configured to select from a plurality of power sources based on availability of one or more power sources and time so as to maximize the economic efficiency of operating the system.