47 results about "Specific consumption" patented technology

The invention seeks to reduce the specific fuel consumption Cs of a twin engine helicopter without compromising on the safety conditions regarding the minimum amount of power to be supplied for any kind of mission. To achieve this, the invention plans to make available special means capable of guaranteeing reliable in-flight restarts. One example of an architecture according to the invention involves two turbine engines (1, 2) each equipped with a gas generator (11, 21) and a with a free turbine (12, 22). Each gas generator (11, 21) is equipped with active drive means (E1, E2) capable of keeping the gas generator (1, 21) rotating with the combustion chamber inactive, and an emergency assistance device (U1, U2) comprising near-instantaneous firing means and mechanical means for accelerating the gas generator (11, 21).; The control system (4) controls the drive means (E1, E2) and the emergency assistance devices (U1, U2) for the gas generators (11, 21) according to the conditions and phases of flight of the helicopter following a mission profile logged beforehand in a memory (6) of this system (4).

An increment of a fuel consumption rate caused by power generation is determined from a difference in fuel consumption rate between a case of performing power generation of an alternator and a case of stopping the power generation. The increment of the fuel consumption rate is divided by a power generation amount of the alternator to determine an increment of a fuel consumption per unit power generation amount. A use-frequency of the electric consumption is determined and also a possible power generation amount and average consumption power are calculated. A target electric consumption is set based upon the use-frequency, the possible power generation amount and the average consumption power so that the charge and discharge balance of the battery becomes zero. The present electric consumption is compared with the target electric consumption to determine whether or not to perform the power generation of the alternator.

The invention relates to silicon carbide smelting, in particular to a process for smelting macrocrystalline green silicon carbide, which comprises the following: a, a step of preparing raw materials of quartz sand and petroleum coke in a ratio of 1.48 to 1.54; b, a step of material mixing; c, a step of furnace charge, in which homogenized raw materials are delivered to a material area (1) at the bottom of a furnace, a burden material subjected to secondary roasting is filled in reaction areas (3, 4 and 5) in the middle of the furnace, and a burden material subjected to primary roasting is filled in the external heat preservation areas (7 and 8); d, a step of smelting, in which the charged furnace is electrified for smelting for 32 to 36 hours, the power of a transmission transformer is 8,000 KVA, and after cooling for 72 hours, the materials are discharged and graded. By adopting a smelting process of roasting for two times, the process reduces the waste of primarily roasted material, the specific consumption of the petroleum coke, the quartz sand and power, and saves energy. Meanwhile, as a long-time lower power transmission is adopted, the reaction of grains is more uniform and complete and the structure of the grains is more compact and firm; and compared with products in the prior art, the product has higher hardness, larger grain size, higher content and more desirable powder grain form.

Methods and apparatuses are provided for simulating components and processes using discrete, variable-granularity, component-specific data relating to energy consumption or other sustainability factors. Simulations can be analyzed and optimized to facilitate forecasting of sustainability factors and determine advantageous modifications to the components or processes.

A method and system limiting specific consumption of an aircraft by matching sizing of a power supply to actual power needs of a cabin pressure control system. The method optimizes overall efficiency of energy supplied onboard an aircraft including, in an environment near the cabin, at least one main power-generating engine, sized to serve as a single pneumatic energy-generating source for the cabin and as an at most partial propulsive, hydraulic, and / or electric energy-generating source for the rest of the aircraft. The method minimizes power differential between a nominal point of the power sources when the sources are operating, and a sizing point of non-propulsive energy contributions of the sources when the main engine has failed, by equally dividing power contributions of the main engines and the main power generator under nominal operating conditions and in an event of failure of a main engine.

The invention relates to a method for optimising the specific consumption of a helicopter provided with two turboshafts (1, 2), each one comprising a gas generator (11, 21) provided with a combustion chamber (CC), each of said turboshafts (1, 2) being able to operate alone in the continuous flight mode, the other turboshaft (2, 1) being then in a so-called super-slow mode with zero power and with the combustion chamber lit, said super-slow mode being assisted by a mechanical rotation of the shaft (AE) of the gas generator in this mode, in such a way as to reduce the operating temperature and the fuel consumption of said gas generator.

The invention belongs to the technical field of agricultural IoT and specifically relates to an IoT-based farming comprehensive service system. The system includes a greenhouse production system, a processing system, a logistics system and a central control system. Multiple fields including modern agricultural production and supervision, agricultural product processing, logistics transportation, agricultural product consumption and the like are combined together through application of IoT technology. The establishment of an IoT-based agricultural IoT networking construction project agricultural product quality safety assurance system, technical support is provided for agricultural product communication and transaction informatization. Information share is achieved through an information interaction platform. Specific consumption information of agricultural products is collected through logistics transportation and is centralized to the information interaction platform for sorting, so that different demands for agricultural products of the market in current season can be concluded clearly and feedback can be sent to the greenhouse production system and the processing system. Therefore, combination of the market and production is tightened and a condition that production divorces from market is avoided.

The invention provides an improved regenerant for sodium ion softening water treatment. The regenerant has the advantage that: a certain amount of strong acid radical ammonium salt is added to a single sodium salt regenerant and an acid generated during ammonium salt decomposition can neutralize a base generated during sodium salt decomposition, thereby reducing the alkalinity of boiler water, preventing alkaline corrosion and caustic embrittlement and reducing excessive pollution discharge caused by excessive alkalinity; and NH3 generated during ammonium decomposition is carried in steam to neutralize CO2 in the steam, thus preventing the metal corrosion of steam equipment and a condensing water system and improving the recovery rate of condensing water. In the invention, a formula is provided to accurately calculate the proportions of the ammonium salts in the regenerants aiming at different water qualities, thereby optimizing the effects of the regenerant and reducing other adverseside effects. The regenerant provided by the invention can also contain a certain amount of complexing agent, thereby preventing the pollution of heavy metals on resin during the regeneration, improving the resin regeneration rate and reducing the specific consumption of the regenerant. The regenerant provided by the invention is simple to prepare, and is energy-saving, environmentally friendly, economical and practical.

The invention provides air filter paper, which is prepared from the following ingredients of 100 weight parts of body glass fiber, 10 to 20 weight parts of molecular sieve activation powder, 0.3 to 0.6 weight part of dispersing agents, 5 to 15 weight parts of wood pulp cellulose, and 5 to 15 weight parts of binding agents, wherein the body glass fiber consists of short cut continuous glass fiber and glass fiber cotton according to the mass ratio of (1 to 4):1. Compared with the prior art, the air filter paper provided by the invention uses the ingredients with the specific consumption; good mutual actions are achieved between all ingredients; the prepared air filter paper has good high-temperature-resistant performance, low wind resistance and high mechanical intensity; harmful particles can be effectively blocked; meanwhile, the whole filtering efficiency is high; in addition, acid gas such as hydrogen sulfide and carbon dioxide in the air can be efficiently filtered.