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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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 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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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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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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A constant temperature and humidity energy-saving unit for air conditioning systems that replaces traditional electric heating with a novel regenerative heat exchange system. The unit comprises an outdoor unit with condenser and evaporator heat exchangers, an indoor unit with regenerative heat exchangers, and a common expansion valve. The system creates a closed-loop circuit where the compressor, condenser, and evaporator operate in tandem, with the heat exchangers forming a continuous loop. This configuration eliminates the need for auxiliary heating in the indoor unit, achieving energy efficiency through the regeneration of heat energy.

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Energy-efficient refrigeration and heat exchange system that utilizes a novel configuration to enhance dehumidification efficiency. The system employs a refrigerant circuit with a compressor, condenser, and subcooler connected in sequence. The subcooler and reheat heat exchanger are positioned near the air inlet and outlet, respectively, while the evaporator is located near the air inlet. The system incorporates a heat pipe circuit with a pre-cooling heat exchanger and reheat heat exchanger, strategically placed between the evaporator and subcooling/reheat heat exchanger. This configuration enables the subcooler to pre-cool the refrigerant before it enters the evaporator, while the reheat heat exchanger re-heats the refrigerant after it exits the evaporator, thereby reducing the overall energy consumption and improving dehumidification efficiency.

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Energy-efficient constant temperature and humidity system that utilizes heat recovery sleeves and hot water coils to achieve optimal temperature and humidity control while minimizing energy consumption. The system employs sleeves and coils to recover heat from the exhaust air, which is then used to preheat the incoming air stream, significantly reducing the system's energy requirements compared to traditional methods. This innovative configuration enables precise temperature and humidity control while maintaining energy efficiency.

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Deep dehumidification air conditioning unit with stepless regulation and condensation heat recovery that maintains constant indoor humidity levels through precise control of both cooling and heating processes. The unit features a high-efficiency evaporator with a condenser heater located on the outlet side of the evaporator, connected in series to the condenser circuit. The evaporator flow regulator is positioned between the condenser heater and the throttle valve, enabling precise control of the refrigerant flow. This integrated approach enables the unit to maintain optimal humidity levels while minimizing energy consumption through optimized cooling and heating operation.

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Adjustable heat recovery type direct evaporative air conditioning unit that enables efficient operation by integrating heat recovery into the refrigeration cycle. The unit features a refrigerant circuit with a heat recovery condenser connected in series, an air flow adjustment device with two valves - one for reheating and one for heat recovery - positioned parallel to the evaporator. The air flow adjustment device allows precise control over the amount of air that needs to be reheated after cooling, while the heat recovery condenser absorbs excess heat from the refrigerant. This integrated approach enables the unit to achieve both cooling and heating through the refrigerant circuit, reducing energy consumption compared to traditional air conditioning systems.

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Energy-efficient air-conditioning system with a novel refrigerant flow configuration. The system employs a unique configuration where the first condenser, expansion valve, evaporator, and first circulating pump are integrated into a single unit. The first condenser, expansion valve, and evaporator are connected to a common refrigerant circuit, while the first circulating pump serves as the refrigerant pump. The second condenser and second heat exchanger are positioned after the first condenser, with their inlet connected to the refrigerant circuit. This configuration enables a single, integrated refrigerant flow path, reducing the number of components and increasing system efficiency.

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Integrated air conditioner with a compact indoor unit that houses all major components - evaporator, compressor, condenser fan, and expansion valve. The control box is positioned at the indoor unit, with the expansion valve connected to the evaporator and the condenser fan connected to the outdoor air inlet through the control box. This design enables a single indoor unit to handle both cooling and heating operations, reducing system complexity and energy consumption compared to traditional dual-unit configurations.

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Energy exchange device and heating/cooling integrative machine that enables efficient and optimized energy management through intelligent control of heat exchangers and refrigeration systems. The device integrates heating and cooling components into a single system, where the control module dynamically switches between different operating modes based on real-time temperature and capacity measurements. The system features a unique valve configuration that enables both direct switching between heating and cooling modes, as well as automatic cycle management. This integrated approach enables significant energy savings while maintaining comfort levels through intelligent temperature and capacity control.

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