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    • 3. 发明申请
    • HVAC SYSTEM RELAY AUTOTUNING AND VERIFICATION
    • HVAC系统继电器自动化和验证
    • WO2013151646A2
    • 2013-10-10
    • PCT/US2013/028989
    • 2013-03-05
    • CARRIER CORPORATION
    • ZHAO, FutaoFAN, JunqiangMIJANOVIC, Stevo
    • G06F19/00
    • F24F11/006F24F1/02F24F11/30F24F11/62F24F11/63F24F11/72G05B13/0205
    • Systems and methods for autotuning a HVAC system controller. The method may include receiving a performance coefficient and providing a step-input using an autotuner relay to measure ultimate gain and ultimate period in a controlled HVAC system. The method may also include adjusting the ultimate gain and ultimate period to account for a relay hysteresis, and applying a tuning rule to derive a proportional gain and an integral time for a controller of the HVAC system control loop. The method may further include updating the controller with the proportional gain and integral time, and verifying the proportional gain and integral time. Verifying the proportional gain and integral time may include setting a performance envelope having a tightness related to the performance coefficient, applying a step-input to provoke a closed-loop response, and comparing the closed loop response with the performance envelope to determine whether the closed-loop response is within the envelope.
    • 用于自动调谐HVAC系统控制器的系统和方法。 该方法可以包括接收性能系数并使用自动调节继电器提供步进输入,以测量受控HVAC系统中的最终增益和最终周期。 该方法还可以包括调整最终增益和最终周期以解决继电器滞后,以及应用调谐规则来导出HVAC系统控制回路的控制器的比例增益和积分时间。 该方法还可以包括以比例增益和积分时间更新控制器,以及验证比例增益和积分时间。 验证比例增益和积分时间可以包括设置具有与性能系数相关的紧密性的性能包络,应用步进输入以引起闭环响应,以及将闭环响应与性能包络进行比较以确定闭合 循环响应在信封内。
    • 4. 发明申请
    • OPERATION OF A CASCADE AIR CONDITIONING SYSTEM WITH TWO-PHASE LOOP
    • 具有两相环的CASCADE空调系统的运行
    • WO2015057297A1
    • 2015-04-23
    • PCT/US2014/051029
    • 2014-08-14
    • CARRIER CORPORATION
    • FENG, YinshanWANG, JinliangZHAO, FutaoVERMA, ParmeshRADCLIFF, Thomas D.
    • F25B9/00F25B23/00F25B25/00F25B41/00
    • F25B7/00F25B9/008F25B23/006F25B25/005F25B41/00F25B2500/26F25B2500/27
    • A method of operating a heat transfer system includes starting operation of a first heat transfer fluid vapor/compression circulation loop including a fluid pumping mechanism, a heat exchanger for rejecting thermal energy from a first heat transfer fluid, and a heat absorption side of an internal heat exchanger. A first conduit in a closed fluid circulation loop circulates the first heat transfer fluid therethrough. Operation of a second two-phase heat transfer fluid circulation loop is started after starting operation of the first heat transfer fluid circulation loop. The second heat transfer fluid circulation loop transfers heat to the first heat transfer fluid circulation loop through the internal heat exchanger and includes a heat rejection side of the internal heat exchanger, a liquid pump, and a heat exchanger evaporator. A second conduit in a closed fluid circulation loop circulates a second heat transfer fluid therethrough.
    • 一种操作传热系统的方法包括开始运行包括流体泵送机构的第一传热流体蒸气/压缩循环回路,用于从第一传热流体排除热能的热交换器和内部的热吸收侧 热交换器。 封闭的流体循环回路中的第一导管将第一传热流体循环通过。 在开始第一传热流体循环回路的操作之后,启动第二两相传热流体循环回路的操作。 第二传热流体循环回路通过内部热交换器将热传递到第一传热流体循环回路,并且包括内部热交换器的排热侧,液体泵和热交换器蒸发器。 闭合流体循环回路中的第二导管使第二传热流体循环通过。
    • 5. 发明申请
    • TWO-PHASE REFRIGERATION SYSTEM
    • 两相制冷系统
    • WO2015057299A1
    • 2015-04-23
    • PCT/US2014/051031
    • 2014-08-14
    • CARRIER CORPORATION
    • FENG, YinshanWANG, JinliangZHAO, FutaoRADCLIFF, Thomas D.VERMA, Parmesh
    • F25B9/00F25B23/00F25B25/00F25B41/00
    • F25B25/005F25B9/002F25B9/008F25B23/006F25B39/00F25B40/02F25B41/00F25B49/022F25B2400/12F25B2400/121F25B2500/03
    • A heat transfer system includes a first two-phase heat transfer fluid vapor/compression circulation loop including a compressor, a heat exchanger condenser, an expansion device, and a heat absorption side of a heat exchanger evaporator/condenser. A first conduit in a closed fluid circulation loop circulates a first heat transfer fluid therethrough. A second two-phase heat transfer fluid circulation loop transfers heat to the first heat transfer fluid circulation loop through the heat exchanger evaporator/condenser, including a heat rejection side of the heat exchanger evaporator/condenser, a liquid pump, a liquid refrigerant reservoir located upstream of the liquid pump and downstream of the heat exchanger evaporator/condenser, and a heat exchanger evaporator. A second conduit in a closed fluid circulation loop circulates a second heat transfer fluid therethrough having an ASHRAE Class A toxicity and a Class 1 or 2L flammability rating.
    • 传热系统包括:热交换器蒸发器/冷凝器的包括压缩机,热交换器冷凝器,膨胀装置和吸热侧的第一两相传热流体蒸气/压缩循环回路。 封闭的流体循环回路中的第一导管使第一传热流体循环通过。 第二个两相传热流体循环回路通过热交换器蒸发器/冷凝器将热量传递到第一传热流体循环回路,包括热交换器蒸发器/冷凝器的排热侧,液体泵,位于 在液体泵的上游和换热器蒸发器/冷凝器的下游,以及热交换器蒸发器。 封闭的流体循环回路中的第二个导管使第二传热流体循环通过其中,具有ASHRAE A级毒性和1级或2L可燃性等级。