113results about How to "Improve energy performance" patented technology

A computer-implemented method for modeling and/or improving operational performance of an energy system includes providing a graphical user interface configured to allow a user to manipulate equipment icons into an energy system model representation, using modular, piece-wise linear equipment models to simulate non-linear behavior of equipment represented by the manipulated equipment icons to solve an energy system model represented by the manipulation, and displaying a solution of the energy system model.

An apparatus for providing a building energy consumption diagnosis and a real-time commissioning processing, includes a database section configured to store building related information; a real-time commissioning section configured to diagnose energy efficiency and obstruction of the mechanical facilities using the building related information. Further, the apparatus includes a building energy consumption information analysis section configured to determine an energy consumption references and diagnose energy consumption of the buildings to be commissioned using the building related information, the real-time operation information and the measured information on the basis of the determined energy consumption reference.

A separator for an energy storage cell having a microporous matrix including a reversible porosity-controlling agent. The porosity-controlling agent is selected from the group consisting of agents that change size as a function of temperature, agents that change size as a function of electrolyte concentration, and agents that change size as a function of temperature and electrolyte concentration to provide a change in an overall porosity of the separator.

The invention discloses receiving equipment, and a method, a device and a system for controlling the video refreshing rate, wherein the method comprises the following steps that: video stream and the first refreshing frequency of the video stream are received, and the video stream comprises one or more video frames; the video stream is saved to a frame buffer area; and each video frame in the frame buffer area is transferred, and the output time of each video frame is controlled by the second refreshing frequency, wherein the first refreshing frequency is higher than the second refreshing frequency. According to the method, the energy performance on a panel side can be improved, and the power consumption of a whole display system is reduced.

A building includes exterior walls that form spaces which are selectively vented under control of a control system. Vents are operated to retain trapped air or exhaust trapped air to improve the energy performance of the building. Vents with selectively operable dampers may be located proximate a top of a wall or wall section of wall. Vents may also be located proximate a bottom of a wall or wall section to allow drainage of liquid and circulation of air. Various specific wall constructions provide for an air gap between layers of exterior sheathing of the exterior wall. The air gap may be in addition to a space between interior and exterior sheathing, which space may include a thermal insulation material (e.g., fiberglass batting).

The disclosed technology enables manufacturers to efficiently design and manufacture structural wall panels, floor panels and roof panels from cold-formed steel for use in residential and commercial construction. The panels are individual components that can be installed at a building site to form a structure that includes walls, floor and a roof. Structures may be manufactured in a manufacturing facility and delivered to a construction site for installation.

The invention provides a double-restraint self-reset buckling-proof energy-dissipation support. The support consists of a novel disc spring self-reset assembly and a buckling-proof support assembly, wherein the self-reset assembly has a friction energy dissipation function, great self-reset performance under the action of medium and small earthquakes and an excellent energy dissipation capacity; the buckling-proof support assembly consists of a core plate, a limiting plate, constraint channel steel and a bolt, wherein the core plate adopts a linear section-variable form, and carbon fiber clothis stuck to the core plate locally to form a local reinforcing section in order to achieve the effect of a preset necking section. By fully utilizing the energy dissipation performance of the core plate in a necking stage of the steel, the accumulated energy dissipation capacity and hysteresis performance of the core plate are improved, and the performance of the core plate shows that a multi-wave buckling phenomenon of the support core plate is obviously inhibited and the accumulated ductility of the core plate is obviously improved. The double-restraint self-reset buckling-proof energy-dissipation support has good self-reset performance and great energy-dissipation performance and is simple in structure, convenient to install and easy to popularize.

The invention discloses a multiple controller energy saving optimization method based on data surface flow prediction. The method creates a mode for controllers in a cluster to mutually communicate on the problem of flow, and dynamically regulates the quantity of movable controllers among cluster controllers based on flow prediction and flow bearing recording, so as to realize energy conservation and environment protection of the cluster controllers. According to the invention, when a network is in an idle state, the method can improve energy saving performance of SDN cluster controllers, and make the cluster controllers more environmentally friendly. A present SDN cluster controller, such as OpenDaylight, does not consider the problem of extra energy consumption of surplus controllers caused by reduced network flow. Accordingly, a present SDN cluster controller can employ the method to improve network energy saving performance. The method realizes reasonable arrangement of controllers in a distributed software-defined network, and avoids energy waste of excessive low load controllers in the software-defined network, thereby realizing network energy conversation.

The invention relates to a high-strength electric-control solid propellant which comprises the following components in percentage by mass: 10-20% of adhesive, 60-80% of main oxidizer, 5-20% of auxiliary oxidizer, 1-2% of crosslinking agent, 0.1-0.5% of coupling agent and 1-5% of fuel additive. The adhesive is water-soluble polyvinyl alcohol (PVA); the main oxidizer is hydroxylammonium nitrate (HAN); the auxiliary oxidizer is one or combination of ammonium nitrate (AN) and ammonium perchlorate (AP); the crosslinking agent is one or combination of boric acid and borax; the coupling agent is a silane coupling agent; and the fuel additive is one or combination of cyclodextrin, sodium alginate, polyvinylpyrrolidone (PVP) and gelatin. The normal-temperature tensile strength of the electric-control solid propellant can be obviously enhanced, and the maximum normal-temperature strength can reach 8 MPa or above. The electric-control solid propellant is suitable to be used as an attitude control or orbit control propellant with higher requirements for normal-temperature strength.

The disclosed technology enables manufacturers to efficiently design and manufacture structural wall panels, floor panels and roof panels from cold-formed steel for use in residential and commercial construction. The panels are individual components that can be installed at a building site to form a structure that includes walls, floor and a roof. Structures may be manufactured in a manufacturing facility and delivered to a construction site for installation.

A binary composition of 1,3,3,3-tetrafluoropropene and ammonia, as well as to the use thereof, in particular as a heat-transfer fluid. The composition may include from 40% to 99% of ammonia and from 1% to 60% of 1,3,3,3-tetrafluoropropene; preferably from 60% to 98% of ammonia and from 2% to 40% of 1,3,3,3-tetrafluoropropene; preferably from 70% to 95% of ammonia and from 5% to 30% of 1,3,3,3-tetrafluoropropene; preferably from 75% to 90% of ammonia and from 10% to 25% of 1,3,3,3-tetrafluoropropene; preferably from 78% to 85% of ammonia and from 15% to 22% of 1,3,3,3-tetrafluoropropene. The 1,3,3,3-tetrafluoropropene may be in the cis form or in the trans form or is a mixture of cis form and trans form and in which, preferably, at least 80% or at least 90% or at least 95% or at least 98% or at least 99% of the 1,3,3,3-tetrafluoropropene is in the trans form.

A composition includes between 11 and 13 wt. % of difluoromethane; between 58 and 62 wt. % of pentafluoroethane; between 18 and 29 wt. % of tetrafluoropropene; and between 0 and 7 wt. % of propane. The tetrafluoropropene can be 1,3,3,3-tetrafluoropropene or 2,3,3,3-tetrafluoropropene. The composition can be used as a heat transfer fluid in a vapour compression circuit.

An electric generator based on a thermoelectric effect includes at least a heat source, a heat dissipator and a thermoelectric converter provided with at least two areas respectively in contact with the heat source and the heat dissipator. The heat source is the center of an exothermic chemical reaction, such as the catalytic combustion of hydrogen. The heat dissipator is the center of an endothermic chemical reaction, at least one product of which forms one of the reagents of the exothermic chemical reaction. Once it is formed by the heat dissipator, said product is then directed towards the input of the heat source in order to react there. The endothermic chemical reaction is more particularly a steam reforming reaction for methanol.

The invention relates to a boron-containing fuel-rich propellant for a ramjet engine. Core-shell type composite boron powder containing a boron-metal oxide core-shell structure is adopted to replace apart of common boron powder; boron is taken as the core of the composite boron powder, a transition metal oxide is takenas a surface layer, in the combustion process, boron is combusted, the metal oxide is reduced into simple substance metal or a low-valence oxide, and then a reduction product is oxidized again by oxygen in the environment to generate the metal oxide. The metal oxide is taken asthecarrier of oxygen, so that oxygen transfer is promoted, and boron combustion is improved. The problem that the combustion efficiency of the boron-containing propellant is low due to insufficient boron combustion is solved, and the process performance and the combustion performance of the propellant are improved on the premise that the comprehensive performance of the propellant is not affected.The problem that a ramjet engine needs a high-performance fuel-rich propellant can be solved, and the application prospect is wide.

Embodiments of the invention provide a quartz vibrator, including a long side in a Y′ axis direction, a side in the Y′ axis direction including a first crystal face and a second crystal face formed thereon, and another side including an AT-cut quartz piece including a first crystal face and a second crystal face formed thereon and electrode layers formed on the AT-cut quartz piece.

A magnetic axial bearing arrangement in a reciprocating hermetic compressor, comprising: a cylinder block (20) and a radial bearing hub (40); a crankshaft (50) securing a rotor (61) of an electric motor (60), said arrangement comprising at least one magnetic axial bearing assembly (100) formed of a pair of magnet elements (101), a magnet element (101) of each pair being mounted to a respective part of at least one of the pairs of parts of crankshaft (50) and cylinder block (20), of cylinder block (20) and rotor (61), or of crankshaft (50) and external bearing (120), the parts of at least one of the pairs of parts carrying respective confronting mechanical stops which are maintained spaced apart by an axial gap (FA) smaller than a magnetic axial gap (FM) higher than zero and to be maintained between the magnet elements (101) of a magnetic axial bearing assembly (100).

The invention discloses a solid propellant formulation energy optimization design method based on a genetic algorithm. The method comprises a first step of modeling, and building an energy characteristic calculation model of solid propellant according to a minimum free energy principle; a second step of setting and storing initial parameters, inputting component species used by the solid propellant, and a chemical formula and a quality proportion range of each component, and inputting species of combustion products produced by the solid propellant after being combusted, and chemical formulas and relative molecular mass of all the combustion products or selecting all the combustion products in a combustion product data base; and a third step of calling a genetic algorithm module by a data processor, and conducting optimization design to quality proportion of the designed solid propellant. The solid propellant formulation energy optimization design method based on the genetic algorithm is simple in steps, reasonable in design, convenient to achieve, good in using effect, capable of fast obtaining an optimum proportion of highest specific impulse of the solid propellant and effectively overcoming the defects, existing in an existing solid propellant compound design process, of being high in energy characteristic test cost, long in period, large in test dose, and the like.