Energy Efficient HVAC Evaporator Coil Design

A refrigeration system and control method that optimizes energy consumption by dynamically controlling the bypass branch configuration. The system incorporates a main refrigeration circuit with a compressor, condenser, and evaporator, along with a first bypass branch that connects to the compressor's exhaust port, a second bypass branch that connects to the condenser's output, and a second throttling device that controls the bypass branch flow. The control system monitors the heating device's power consumption and adjusts the bypass branch parameters based on the system's current temperature conditions, enabling energy savings when the system reaches set temperature.

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Temperature control method for dual-channel refrigeration systems that improves energy efficiency and reduces waste. The method enables precise temperature control by dynamically switching between the two refrigeration channels based on the load condition. The system achieves this through a unique configuration where the first channel provides a controlled load, while the second channel operates as a no-load buffer. The temperature difference between the two channels is monitored, and when the load exceeds a predetermined threshold, the system automatically adjusts the target temperature. This approach eliminates the need for a compressor in the no-load state, significantly reducing energy consumption and improving overall system efficiency.

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Energy-efficient constant temperature and humidity air conditioning system that reduces energy consumption through advanced compressor design. The system employs a variable frequency compressor with integrated oil separator, four-way valve, and gas-liquid separator, along with a condensation heat recovery heat exchanger and first heat exchanger. The system's design features a pressure balance circuit and oil return system to optimize compressor performance.

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A system for reducing energy consumption in air conditioning systems by utilizing the heat energy generated by the evaporator and compressor. The system integrates the compressor and turbine into a single electric motor, where the compressor's work is converted into electrical torque. This enables the compressor to operate at lower speeds, reducing energy consumption while maintaining cooling performance. The system can be applied to all air conditioning systems, including residential and commercial units, by replacing the conventional compressor and turbine configuration with a single motor-driven system.

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A condensation heat recovery system for constant temperature and humidity devices that enables efficient energy conservation through the recovery of waste heat. The system comprises a device with a solenoid valve, condensation heat recoverer, and one-way valve connected in series. The condensation heat recoverer captures and condenses the waste heat from the device, while the one-way valve allows the recovered heat to be reused as a temperature compensation source. This approach enables the device to recover and reuse heat that would otherwise be wasted, significantly reducing energy consumption.

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A novel constant temperature and humidity air conditioning system that minimizes energy consumption by optimizing both cooling and dehumidification operations. The system employs a unique configuration of solenoid valves, filter, and thermal expansion valve, which enables the unit to maintain a constant setpoint temperature while simultaneously achieving the desired humidity level. This integrated approach eliminates the need for separate heating and cooling cycles, thereby reducing overall system energy consumption.

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Refrigeration device with enhanced energy efficiency through optimized heat transfer and temperature management. The device comprises a variable temperature evaporator, temperature-changing air ducts, and a variable temperature door, all integrated into a single system. The evaporator's heat transfer is enabled by a fixed heat pipe arrangement near the condenser, while the temperature-changing air ducts distribute cooled air to temperature-controlled spaces. The system incorporates a variable temperature door that allows controlled access to the evaporator while maintaining temperature stability. This design enables precise temperature management and efficient energy consumption, particularly in applications requiring variable temperature control.

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Temperature and humidity adjustment device for refrigeration equipment that enables precise control of refrigerant flow and evaporation conditions through automated regulation of return air pressure and compressor flow. The device features a sensor at the evaporator outlet to monitor evaporator pressure or temperature, and a controller controls the return air pressure regulating valve and compressor flow based on these parameters. This enables the device to maintain optimal refrigerant flow and evaporation conditions within the specified temperature and humidity range, thereby significantly reducing energy consumption and improving system efficiency.

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Energy-saving air conditioning system that accurately controls both temperature and humidity of the supplied air. The system uses a two-stage air handling process. First, fresh air is cooled and dehumidified in an evaporator. Then, condensation heat from the refrigerant is used to reheat the air in a separate heat exchanger. This allows precise temperature control without needing external heating sources. The evaporator temperature is adjusted to match desired humidity levels. The reheating air volume is varied to fine-tune supply air temperature.

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Power-saving constant temperature and humidity chamber that maintains internal conditions using a heating heater, humidification heater, and separate heat exchanger. The heat exchanger is positioned away from the humidification heater's operating area, allowing precise control of refrigerant flow based on setpoint temperature. This enables direct control of the heat exchanger's temperature, minimizing the need for the heating heater to compensate for excessive cooling. The chamber's internal temperature and humidity are continuously monitored and adjusted by the control unit to maintain precise conditions.

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System for maintaining balance between heat pump evaporator and condenser in low-temperature storage facilities. The system integrates a heat pump, condenser, and dryer in a single system, utilizing waste heat from the condenser for drying operations. The system employs a unique four-way heat circulation pattern, with the condenser serving as an additional heat source for both evaporator and dryer operations. This configuration ensures continuous heat delivery while maintaining optimal balance between the evaporator and condenser.

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A constant temperature and humidity (CTH) system for air conditioning that optimizes energy efficiency through advanced control strategies. The system employs a unique hybrid approach combining both electric heating and cooling, with precise temperature and humidity control. In winter, electric heating is used to maintain setpoint temperatures, while in summer, the system switches to a more energy-efficient cooling mode. This dual-mode operation enables optimal performance while minimizing energy consumption, particularly in applications where electric heating dominates.

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Low power consumption constant temperature and humidity machine suitable for low load or zero load environments. The machine uses multiple indoor condensers connected to a central refrigeration unit and external heat exchanger. It allows selective switching between the indoor condensers and external heat exchanger to efficiently cool and dehumidify in low load conditions. This reduces power consumption compared to always using the external heat exchanger.

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Constant temperature and humidity unit with enhanced energy efficiency. The unit employs a novel combination of electric heating and evaporative cooling, leveraging the lower energy requirements of evaporative cooling while maintaining constant humidity levels. This configuration reduces the overall energy consumption of conventional units, particularly during winter operation when electric heating is typically utilized.

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Low-power constant temperature and humidity machine for maintaining set temperature and humidity levels in environments with minimal ambient heating. The machine employs a unique four-way valve switching strategy that enables continuous operation between refrigeration and dehumidification modes, eliminating the need for heating and dehumidification cycles. The system achieves this through an integrated circulation loop configuration where refrigerant and dehumidifying fluids flow through both internal and external paths, allowing continuous operation while maintaining set conditions.

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A multi-connected heat pipe precision air conditioner that optimizes refrigerant flow through a network of interconnected heat exchangers. The system integrates multiple heat exchangers into a single unit, with each heat exchanger connected to a common refrigerant collection line. The system features a network of sensors and control components that monitor refrigerant flow and temperature distribution across the network, enabling real-time control of the refrigerant flow through the network. This approach eliminates the need for separate pressure sensors and enables more cost-effective and efficient refrigerant flow management compared to traditional multi-pump configurations.

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Control method for air conditioning systems to optimize energy efficiency through coordinated compressor and condenser operation. The method involves joint control of the compressor and condenser to achieve a common operating point, thereby reducing energy consumption by minimizing the difference between compressor and condenser temperatures. This approach enables the system to operate at a more efficient temperature range, which is typically the optimal operating point for both components.

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Air conditioning unit that optimizes energy efficiency through strategically arranged components. The unit features a unique configuration where the compression refrigeration evaporator and heat pipe evaporator are positioned obliquely relative to the vertical direction, while the air inlet and outlet are positioned at a 90-degree angle to each other. This configuration enables the air conditioning unit to achieve optimal performance while minimizing the energy required for air flow and heat transfer.

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Control method and device for vehicle air conditioning systems that optimizes energy consumption and comfort. The control method enables the system to dynamically adjust its operation based on real-time vehicle load conditions, rather than relying on fixed parameters. The control device achieves this through advanced energy management algorithms that continuously monitor and adjust the air conditioning system's compressor, fan, and refrigerant flow rates in response to the vehicle's load requirements. This adaptive control enables optimal energy efficiency while maintaining vehicle comfort.

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Energy-efficient constant temperature and humidity system for industrial and scientific applications. The system employs heat recovery sleeves and hot water coils to maintain precise temperature and humidity levels within a controlled fluctuation range. The sleeves and coils work together to recover heat from the system's hot water streams, reducing energy consumption while maintaining optimal environmental conditions. This innovative configuration enables the system to achieve higher accuracy and reliability compared to conventional systems, particularly in applications requiring precise temperature and humidity control.

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