摘要:
A cogeneration system includes a compression air conditioner including a compressor, a first heat exchanger and a second heat exchanger; an absorption air conditioner including a regenerator, an absorber, a third heat exchanger and a fourth heat exchanger; a generator which generates electricity; a drive source which drives the generator to generate the electricity for operating the compression air conditioner and the absorption air conditioner and generates waste heat when driving the generator; and a waste heat recoverer which recovers the waste heat of the drive source and supplies the recovered waste heat to at least one of the compression air conditioner and the absorption air conditioner.
摘要:
An airconditioning generation system capable of solving an unbalanced phase, and a method for solving the unbalanced phase are disclosed. The airconditioning generation system includes one or more indoor units (111, 112, 113, 121, 122, 131, 132, 133), one or more outdoor units (110, 120, 130), a generator (70) for providing the indoor and outdoor units with a power-supply signal, and a distribution unit (80, 80′) for detecting an individual-phase power value consumed by the indoor units, changing a phase of the power-supply signal transmitted from the generator (70) to the indoor or outdoor units, and establishing three-phase equilibrium. Therefore, if an unbalanced phase occurs in the three-phase power-supply signals applied to an airconditioner, the system solves the unbalanced phase, such that it prevents a product from being damaged and increases product reliability.
摘要:
An air-conditioner having multiple compressors includes: an indoor heat-exchanger disposed indoors and heat-exchanging indoor air; an outdoor heat-exchanger disposed outdoors and heat-exchanging a refrigerant with external air; four compressors for compressing the refrigerant to change the refrigerant to have a high temperature and high pressure; and three accumulators disposed at a suction side of the four compressors and separating the refrigerant into a gas and a liquid to supply a gaseous refrigerant to the compressors. Oil can be uniformly supplied to each compressor, thereby enhancing reliability of compressors, and since the three accumulators are small with low capacities, their installation space can be easily secured.
摘要:
A cogeneration system is disclosed. The cogeneration system includes a heat pump type air conditioner, a waste heat recoverer to recover waste heat of a drive source, a waste heat supplying heat exchanger, which is heated by the waste heat recovered by the waste heat recoverer, and a bypassing unit, which causes the waste heat supplying heat exchanger to function as an evaporator during a heating operation of the heat pump type air conditioner. In accordance with this arrangement, it is possible to enhance the heating capacity of the heat pump type air conditioner irrespective of outdoor temperature, to prevent damage of compressors, and to minimize power consumption.
摘要:
A cogeneration system including an engine, which drives a generator to generate electricity, a cooling/heating unit, which includes at least one compressor, a four-way valve, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger, to establish a heat pump type refrigerant cycle, and a refrigerant over-heating unit to supply heat of cooling water used to cool the engine to a suction-side refrigerant line of the compressor of the cooling/heating unit, and to supply heat of exhaust gas discharged from the engine to the suction-side refrigerant line of the compressor and to a discharge-side refrigerant line of the compressor. In accordance with the cogeneration system, it is possible to maximize absorption of the waste heat of the engine while preventing compressor malfunction, and thus, to increase the refrigerant condensing temperature of the indoor heat exchanger. Thus, an enhancement in heating performance is achieved.
摘要:
A cogeneration system including an engine, which drives a generator to generate electricity, a cooling/heating unit, which comprises at least one compressor, a four-way valve, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger, to establish a heat pump type refrigerant cycle, and an exhaust heat consuming heating unit to supply heat of exhaust gas discharged from the engine to a heat exchanging zone of the indoor heat exchanger of the cooling/heating unit, and thus, to heat a confined space. Since waste heat generated from the engine is directly used in the cooling/heating unit, an enhancement in indoor heating efficiency is achieved.
摘要:
A cogeneration system including an engine, which drives a generator to generate electricity, a cooling/heating unit, which comprises at least one compressor, a four-way valve, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger, to establish a heat pump type refrigerant cycle, a cooling water heat supplier to supply heat of cooling water used to cool the engine to a suction side of the compressor of the cooling/heating unit and to pre-heat air passing through the outdoor heat exchanger, and a discharge-side refrigerant over-heater to supply heat of exhaust gas discharged from the engine to a discharge side of the compressor. In accordance with the cogeneration system, it is possible to maximize absorption of the waste heat of the engine while preventing compressor malfunction, and thus, to increase the refrigerant condensing temperature of the indoor heat exchanger and the refrigerant pre-heating temperature of the outdoor heat exchanger. Thus, an enhancement in heating performance is achieved.
摘要:
A stack for a fuel cell includes a first collecting plate having a first electric polarity, a second collecting plate having a second electric polarity different from the first electric polarity, and at least one electricity generator located between the collecting plates. The at least one electricity generator is for generating electric energy due to electrochemical reaction between hydrogen and oxygen to be collected by the collecting plates. Coupling members press the at least one electricity generator in an airtight connection between the collecting plates. A terminal member protrudes from the second collecting plate and is electrically connected to the first collecting plate and insulated from the second collecting plate, such that the terminal member is used as a first terminal having the first polarity. The second collecting plate or a second terminal member may also be used as a second terminal having the second polarity.
摘要:
An air supply system for a fuel cell and a fuel supply system with the same include a housing having an inlet hole and an outlet hole for respectively allowing inward and outward flow of a fluid; an air pump inserted and installed into the housing and having an inlet tube into which the fluid flows and an outlet tube through which the fluid flows out; a filtering portion installed between the inlet hole and the outlet hole within the housing and filtering particulate contaminants and chemical contaminants in the fluid; and a soundproofing member installed between the outlet tube and the outlet hole within the housing.
摘要:
An optical payment transceiver and an optical settlement system using the same uses a personal portable terminal incorporated with an optical transceiver as a card substitute payment unit for settlement. Here, card information is incorporated in a personal portable terminal incorporated with an optical transceiver such as a portable phone or a PDA and the optical transceiver is connected to a card inquiry machine to thereby optically transmit and receive card information. The card inquiry machine recognizes the received card information in the same manner as that of the card reader reading a magnetic card, and transmits the card information to a VAN company server or a card company server, to then request for an approval and settle transactions. The present invention is applied to most fields where financial transactions are performed as in a general commerce, a toll gate fee or tunnel passage fee collection system, a subway or bus fare levying system, a gas station, a department store, a drive-thru ordering system, a vending machine, and a fee payment system of kiosks. Also, the present invention can be applied to an entrance/exit security system requiring personal identification. Thus, the present invention can use a portable terminal as a payment unit without carrying a cash or cards, to thereby provide an effect of performing a safer and more reliable credit transaction.