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Dehumidification control in refrigerant vapor compression systems

A refrigerant vapor, compression system technology, applied in the control input involving system state, heating and ventilation control systems, refrigerators, etc., can solve problems such as difficulty in humidity control

Active Publication Date: 2012-11-14
CARRIER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the high end of the temperature range, it becomes more difficult to control the relative humidity to the desired low level

Method used

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  • Dehumidification control in refrigerant vapor compression systems
  • Dehumidification control in refrigerant vapor compression systems
  • Dehumidification control in refrigerant vapor compression systems

Examples

Experimental program
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Embodiment Construction

[0017] Referring first to the accompanying drawings figure 1 , an exemplary embodiment of a refrigerant vapor compression system 100 for supplying conditioned air to a climate-controlled space 110 is shown. Although climate-controlled spaces referred to herein are cargo storage spaces commonly referred to as "holds" in trucks, trailers, containers, etc., used for the transport of perishable / frozen items by truck, rail, ship, or intermodal container, The present invention is thus described, but it should be understood that the present invention may also be applied to refrigerants in air conditioning systems used to condition air supplied to climate-controlled comfort zones within residences, office buildings, hospitals, schools, restaurants, or other facilities. Dehumidification control aspects of vapor compression systems, and can also be applied to refrigerants on commercial refrigeration systems used to cool the air in display cases, merchants, freezers, cold rooms, or othe...

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PUM

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Abstract

A method and apparatus are disclosed for controlling dehumidification of an airflow to be conditioned for supply to a climate controlled space. The airflow to be conditioned is passed over a plurality of refrigerant conveying conduits of an evaporator of a refrigerant vapor compression thereby cooling the airflow. A controller operates the refrigeration vapor compression system to maintain the airflow at a set point air temperature indicative of a desired temperature within the climate controlled space. The controller also adjusts an evaporator expansion device for controlling the flow of refrigerant through the evaporator so as to reduce the temperature of the refrigerant within the refrigerant conveying conduits of the evaporator whenever further dehumidification of the air flow to be conditioned is desired.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] U.S. Provisional Application No. 61 / 251,462, filed October 14, 2009, and entitled "DEHUMIDIFICATION CONTROL IN REFRIGERANT VAPOR COMPRESSION SYSTEMS", and this application claims The priority and benefit of which is hereby incorporated by reference in its entirety. technical field [0003] The present invention generally relates to refrigerant vapor compression systems such as refrigeration systems and air conditioning systems. More particularly, the present invention relates to dehumidification control for conditioned air or air-gas mixtures supplied to climate-controlled spaces. Background technique [0004] Refrigerant vapor compression systems are well known in the art and are commonly used to condition air supplied to climate-controlled spaces. For example, refrigerant vapor compression systems are used to condition air supplied to climate-controlled comfort zones within homes, office buildings, hospitals, schoo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/02F24F11/00F24F3/14
CPCF24F3/14F24F11/0008F24F2011/0043F24F2011/0045F25B2600/21F25B2600/2513F25B2700/1931F24F2140/12F24F2140/20F25B41/34Y02B30/70
Inventor S.M.吴M.O.约翰森R.L.小森夫
Owner CARRIER CORP