139-2019

Method of Testing for Rating Desiccant Dehumidifiers Utilizing Heat for the Regeneration Process

139-2019 发布历史

This standard applies to desiccant-based dehumidifiers operating at atmospheric pressure. The dehumidifier shall use solid or liquid desiccants that are regenerated using heat energy. 2.2 Normally@ equipment within this standard would consist of one or more desiccant contact stations through which the air to be dehumidified is moved@ a means to expose the moistureladen desiccant to a source of heat energy for regeneration@ and a heating device. Ancillary devices are normally used to move air to be dehumidified through the device and to provide ventilation for regeneration@ but they are not a part of this standard. This standard is intended to a. describe a uniform method of testing for obtaining performance data@ b. reference and specify test instruments and apparatus@ c. describe and specify test data to be recorded@ and d. describe and specify calculations to be made from the test data. This standard does not apply to a. dehumidifiers operating at other than atmospheric pressure@ b. dehumidifiers not using a desiccant for dehumidification@ c. dehumidifiers not using heat for regeneration of the desiccant@ d. ancillary equipment that may be used in any dehumidification process@ such as fans or pre- or post-conditioning equipment@ or e. dehumidifiers using a sealing arrangement that results in leakage rates in excess of 1% of process flow PURPOSE The purpose of this standard is to provide test methods for determining the moisture removal capacity of heat-regenerated desiccant dehumidifiers@ as well as the coincident thermal energy performance@ so that comparative evaluations of capacity and performance can be made irrespective of the type or make of the device.

139-2019由ASHRAE - American Society of Heating@ Refrigerating and Air-Conditioning Engineers@ Inc. 发布于 2019-02-01，并于 2019-02-22 实施。

139-2019的历代版本如下：

• 1952年04月01日 139-1952
• 1988年06月09日 139-1988
• 1991年01月01日 139-1991
• 1998年01月21日 139-1998
• 2005年03月01日 139-2005
• 2007年06月23日 139-2007
• 2015年08月31日 139-2015
• 2019年02月01日 139-2019

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标准号

139-2019

发布日期

2019年02月01日

实施日期

2019年02月22日

废止日期

无

中国标准分类号

/

国际标准分类号

/

发布单位

ASHRAE - American Society of Heating@ Refrigerating and Air-Conditioning Engineers@ Inc.

引用标准

18

适用范围

This standard applies to desiccant-based dehumidifiers operating at atmospheric pressure. The dehumidifier shall use solid or liquid desiccants that are regenerated using heat energy. 2.2 Normally@ equipment within this standard would consist of one or more desiccant contact stations through which the air to be dehumidified is moved@ a means to expose the moistureladen desiccant to a source of heat energy for regeneration@ and a heating device. Ancillary devices are normally used to move air to be dehumidified through the device and to provide ventilation for regeneration@ but they are not a part of this standard. This standard is intended to a. describe a uniform method of testing for obtaining performance data@ b. reference and specify test instruments and apparatus@ c. describe and specify test data to be recorded@ and d. describe and specify calculations to be made from the test data. This standard does not apply to a. dehumidifiers operating at other than atmospheric pressure@ b. dehumidifiers not using a desiccant for dehumidification@ c. dehumidifiers not using heat for regeneration of the desiccant@ d. ancillary equipment that may be used in any dehumidification process@ such as fans or pre- or post-conditioning equipment@ or e. dehumidifiers using a sealing arrangement that results in leakage rates in excess of 1% of process flow PURPOSE The purpose of this standard is to provide test methods for determining the moisture removal capacity of heat-regenerated desiccant dehumidifiers@ as well as the coincident thermal energy performance@ so that comparative evaluations of capacity and performance can be made irrespective of the type or make of the device.

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