摘要:
A composition comprising a particulate Solid, an organic medium and a compound with an alkyleneoxy compound with an inorganic acidic polar head group (Z), wherein the compound is defined by Formula (1) and salts thereof: U—(Y)x-T-N(G)r(B-Z)q (Formula 1) wherein U is independently R′—N—(C)-T′-O—, or R—O—; R or R′ may be the same or different and are independently H or C1-50-optionally substituted hydrocarbyl, or hydrocarbonyl group (acyl group), or the residue of an epoxide, or the residue of an optionally substituted (meth) acrylic ester or amide group; Y is C2-4-alkyleneoxy; T or T′ is independently C2-4 alkylene; B is an alkylene group, such as, methylene; Z is an inorganic acidic polar head group, such as, a sulphur or phosphorus acidic polar head group; G and G′ may be the same or different and are independently H or C1-50-optionally substituted hydrocarbyl or C1-50-optionally substituted hydrocarbyl or hydrocarbonyl group or the residue of an epoxide, or the residue of an optionally substituted (meth) acrylic ester or amide group; r is zero or 1; q is 1 or 2, with the proviso that when q is 2, r is zero; and x is from 2 to 90.
摘要:
An air conditioner is arranged so as to be able to accurately judge a refrigerant filling state within the air conditioner regardless of environmental and installation conditions. The air conditioner has a computing section 102 for computing a condenser liquid phase area ratio that is a value related to an amount of liquid phase portion of the refrigerant within a high pressure-side heat exchanger, based on refrigerant condensation temperature of the high pressure-side heat exchanger, outlet super-cooling degree of the high pressure-side heat exchanger, intake air temperature of the high pressure-side heat exchanger, a difference of enthalpy of inlet and outlet of the high pressure-side heat exchanger and specific heat at constant pressure of a refrigerant solution at the outlet of the high pressure-side heat exchanger and a judging section 106 for judging the refrigerant filling state within the air conditioner based on a comparison of the value computed by the computing section 102 with a predetermined value.
摘要:
An air conditioner is arranged so as to be able to accurately judge a refrigerant filling state within the air conditioner regardless of environmental and installation conditions. The air conditioner has a computing section 102 for computing a condenser liquid phase area ratio that is a value related to an amount of liquid phase portion of the refrigerant within a high pressure-side heat exchanger, based on refrigerant condensation temperature of the high pressure-side heat exchanger, outlet super-cooling degree of the high pressure-side heat exchanger, intake air temperature of the high pressure-side heat exchanger, a difference of enthalpy of inlet and outlet of the high pressure-side heat exchanger and specific heat at constant pressure of a refrigerant solution at the outlet of the high pressure-side heat exchanger and a judging section 106 for judging the refrigerant filling state within the air conditioner based on a comparison of the value computed by the computing section 102 with a predetermined value.
摘要:
An air conditioner is arranged so as to be able to accurately judge a refrigerant filling state within the air conditioner regardless of environmental and installation conditions. The air conditioner has a computing section 102 for computing a condenser liquid phase area ratio that is a value related to an amount of liquid phase portion of the refrigerant within a high pressure-side heat exchanger, based on refrigerant condensation temperature of the high pressure-side heat exchanger, outlet super-cooling degree of the high pressure-side heat exchanger, intake air temperature of the high pressure-side heat exchanger, a difference of enthalpy of inlet and outlet of the high pressure-side heat exchanger and specific heat at constant pressure of a refrigerant solution at the outlet of the high pressure-side heat exchanger and a judging section 106 for judging the refrigerant filling state within the air conditioner based on a comparison of the value computed by the computing section 102 with a predetermined value.
摘要:
An air conditioner includes: a heat source-side unit having a compressor, a heat source-side heat exchanger, a first throttle device and a super-cooling heat exchanger; a load-side unit having a second throttle device and a load-side heat exchanger; a switching device for switching connections of discharge and intake sides of the compressor between the heat source-side unit and the load-side unit; a refrigerant reservoir supplying refrigerant and connected to a refrigerating cycle between the first throttle device of the heat source-side unit and the heat source-side heat exchanger through a refrigerant filling switch valve; and a controller controlling the switching device, the first throttle device, the second throttle device and refrigerant filling switch valve.
摘要:
An air passage that connects an inlet port that sucks air from a dehumidification target space and an outlet port that supplies air to the dehumidification target space; a heating device that heats the air; a first moisture adsorption/desorption device releasing moisture into air that has a relatively low humidity and absorbing moisture from air that has a relatively high humidity; a second moisture adsorption/desorption device disposed so as to be spaced apart from the first moisture adsorption/desorption device, a cooling device cooling air that has been humidified; and switching devices switching between an air path passing air through the first moisture adsorption/desorption device, the cooling device, and the second moisture adsorption/desorption device in this order, and an air path in which the air passes through the second moisture adsorption/desorption device, the cooling device, and the first moisture adsorption/desorption device in this order.
摘要:
A refrigerating and air-conditioning apparatus including a refrigerant circuit, which in turn includes an outdoor unit, and an indoor unit, connected by an extension pipe. The apparatus further includes a control unit having a memory, and is configured to calculate an internal volume of the extension pipe and calculate a standard refrigerant amount, serving as a criterion for determining whether the refrigerant is leaked from the refrigerant circuit, on the basis of the calculated refrigerant extension pipe internal volume. The memory is configured to store the refrigerant extension pipe internal volume and the standard refrigerant amount. The control unit is configured to calculate a total amount of refrigerant in the refrigerant circuit on the basis of the refrigerant extension pipe internal volume stored in the memory and operation data measured during normal operation, and compare the calculated total refrigerant amount with the standard refrigerant amount stored in the memory to determine whether refrigerant is leaked.
摘要:
Provided is an air-conditioning and hot water supply combination system capable of maintaining a high hot water supply capacity and achieving high efficiency even under high-temperature outside air conditions by appropriately controlling the degree of superheat and the degree of subcooling of a heat exchanger. In an air-conditioning and hot water supply combination system, when an evaporating pressure or an evaporating temperature calculated from the evaporating pressure reaches a first predetermined value or higher, the degree of superheat of a refrigerant on a low-pressure gas side of a subcooling heat exchanger or the degree of subcooling of the refrigerant on a high-pressure liquid side of the subcooling heat exchanger is controlled by the opening degree of a low-pressure bypass pressure reducing mechanism, such that the evaporating pressure or the evaporating temperature calculated from the evaporating pressure is less than or equal to the first predetermined value.
摘要:
An air passage that connects an inlet port that sucks air from a dehumidification target space and an outlet port that supplies air to the dehumidification target space; a heating device that heats the air; a first moisture adsorption/desorption device releasing moisture into air that has a relatively low humidity and absorbing moisture from air that has a relatively high humidity; a second moisture adsorption/desorption device disposed so as to be spaced apart from the first moisture adsorption/desorption device, a cooling device cooling air that has been humidified; and switching devices switching between an air path passing air through the first moisture adsorption/desorption device, the cooling device, and the second moisture adsorption/desorption device in this order, and an air path in which the air passes through the second moisture adsorption/desorption device, the cooling device, and the first moisture adsorption/desorption device in this order.
摘要:
In a refrigerating cycle apparatus and control method thereof, a controller sets a high-pressure pressure target value from thermal load and temperature conditions based on refrigerant information that has been obtained from detectors, and controls at least one of a rotational frequency of a compressor, a degree of opening of an electronic expansion valve, a rotational frequency of an outdoor fan, or a rotational frequency of an indoor fan to match a high-pressure pressure to the high-pressure pressure target value that has been set. Here, a threshold value is set when the high-pressure pressure target value is set, and a method for setting the high-pressure pressure target value is modified depending on whether the high-pressure pressure is greater than or equal to the threshold value or less than the threshold value when the high-pressure pressure target value is decided.