摘要:
Proposed a gas heat-pump system including: a compressor compressing refrigerant and discharging the compressed refrigerant; an engine providing a drive force to the compressor; a radiator that cools coolant which is heated while passing through the engine; an indoor heat exchanger causing heat exchange to occur between indoor air and the refrigerant and thus cooling or heating an indoor space; an outdoor heat exchanger condensing the refrigerant; a four-way valve switching a flow direction of the refrigerant in such a manner that the refrigerant discharged from the compressor flows to the outdoor heat exchanger in a cooling operation mode and flows to the indoor heat exchanger in a heating operation mode; and a hot-water storage tank causing the heat exchange to occur between stored water and the refrigerant, and thus cooling the refrigerant in the cooling operation mode and heating the refrigerant in the heating operation mode.
摘要:
A gas heat pump air conditioning system includes: a gas engine that generates power by using gas as a fuel; a heat pump cycle including a compressor that is driven by the gas engine and at least one heat exchanger disposed in an interior space and air-conditioning the interior space by the heat exchanger; a power generator that is driven by the gas engine and generates electric power; and a local air conditioner that is disposed in the interior space in which the heat exchanger is disposed and that air-conditions the interior space by using the electric power generated by the power genera or.
摘要:
A control system and method are provided for the controlling of steam supplies used by a steam turbine driven chiller unit. The steam turbine can receive steam from a high pressure steam source and/or a low pressure steam source depending on the operating mode of the steam turbine. The high pressure steam is used for operating at the steam turbine at rated speed and to provide the breakaway torque when starting the steam turbine. The low pressure steam is used for extending idling of the steam turbine that enables the steam turbine to transition more quickly to rated speed when desired.
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:
The present invention provides a gas heat pump-type air conditioner that can reliably notify a user that the time for changing the engine oil of the gas engine that drives the compressor has arrived without stopping the operation of the gas engine. In a gas heat pump-type air conditioner that forms a cooling cycle by circulating refrigerant using a compressor having a gas engine as a drive source, when the cumulative hours of operation t of the gas engine reaches a second predetermined time T2 (S3), a warning display A is displayed while the operation of the gas engine continues, and thereby the user is notified that the time for changing the engine oil has arrived (S4), and at the same time, after the initial stop procedure is carried out subsequent to reaching the predetermined time T2 (S5), a warning display B is displayed (S6), and the warning restoration operation procedure (S7) is carried out.
摘要:
An air conditioning apparatus having an auxiliary air conditioning apparatus mountable on a structure connectible to a vehicle, such as a camper mountable on the vehicle or a trailer towable by the vehicle, or mountable on a larger vehicle such as a motor home or van having a primary and a secondary space which are preferably cooled by separate means. The auxiliary apparatus has an evaporator, means for circulating air from the interior of such structure or the secondary space of the large vehicle through the evaporator and back into the interior or such secondary space, and a condenser through which air from the atmosphere is circulated to cool refrigerant fluid; and a primary air conditioning apparatus mountable on the vehicle which includes a compressor, a primary condenser and a primary evaporator, the two condensers being connected in a series to cool the refrigerant fluid compressed by the compressor and the evaporators being connected in parallel and so arranged that both will always be supplied with liquid refrigerant during operation of the apparatus. The apparatus also includes suitable control means for selectively operating the auxiliary and primary air conditioning apparatus for cooling the interior of the vehicle and such structure or the primary and secondary spaces of a large vehicle, which may be the space occupied by the driver of the large vehicle and a separate or connecting secondary space, and means for independently operating the primary air conditioning apparatus without the auxiliary apparatus being physically connected thereto.
摘要:
An air conditioner is provided. The air conditioner may include at least one indoor device, an electric heat pump (EHP) outdoor device connected with the at least one indoor device, and having a first compressor driven using electric power and a first outdoor heat exchanger, and a gas heat pump (GHP) outdoor device connected with the at least one indoor device, and having an engine portion driven through a combustion gas, a second compressor driven by receiving a driving force from the engine portion, and a second outdoor heat exchanger. The GHP outdoor device may include an engine circulation pipe in which a refrigerant flowing through the EHP outdoor device may be introduced and then supplied to the engine portion.
摘要:
A mechanical leverage system comprising an expansive side and a compressive side, wherein the compressive side comprises a compressor which is in controlled fluid communication with a first evaporator and a first condenser, wherein the expansive side comprises an expander which is in controlled fluid communication with a second evaporator and a second condenser, wherein the second evaporator absorbs heat from a space such as an attic and drives the expander, and thus, the compressor to which the expander is connected, and wherein there is a difference between the properties of the refrigerant used in the expansive side and the compressive side, such that the difference in refrigerant properties influences the mechanical advantage ratio of the system.
摘要:
A mechanical leverage system comprising an expansive side and a compressive side, wherein the compressive side comprises a compressor which is in controlled fluid communication with a first evaporator and a first condenser, wherein the expansive side comprises an expander which is in controlled fluid communication with a second evaporator and a second condenser, wherein the second evaporator absorbs heat from a space such as an attic and drives the expander, and thus, the compressor to which the expander is connected, and wherein there is a difference between the properties of the refrigerant used in the expansive side and the compressive side, such that the difference in refrigerant properties influences the mechanical advantage ratio of the system.
摘要:
An engine driven heat pump includes a temperature switch that opens and closes in accordance with the peripheral temperature of an inverter and a control device that includes a signal reception unit, and a temperature open contact point that opens at a predetermined temperature or higher is provided in the temperature switch, and an abnormal-time open contact point that opens when abnormality occurs in a battery charging circuit is provided in the battery charging circuit, and a signal generation contact point that generates a state signal indicating a state of the inverter is provided in the inverter, and the temperature open contact of point the temperature switch, the abnormal-time open contact point of the battery charging circuit, and the signal generation contact point of the inverter are connected in series with respect to the signal reception unit of the control device.