Humidity's impact on greenhouse gas emissions from air conditioning

被引：106

作者：

Woods, Jason ^{[1
]}

James, Nelson ^{[1
]}

Kozubal, Eric ^{[1
]}

Bonnema, Eric ^{[1
]}

Brief, Kristin ^{[2
]}

Voeller, Liz ^{[2
]}

Rivest, Jessy ^{[2
]}

机构：

[1] Natl Renewable Energy Lab, Golden, CO 80401 USA

[2] Xerox PARC, Palo Alto, CA 94304 USA

来源：

JOULE | 2022年 / 6卷 / 04期

关键词：

FLOOR AREA; VENTILATION; DESICCANT; EFFICIENCY; BUILDINGS; EXPOSURE; HVAC;

D O I：

10.1016/j.joule.2022.02.013

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The increasing need to cool the air in our built environment is both a cause and an effect of climate change. Air conditioning accounts for a large portion of global greenhouse gas emissions today, which we estimate at 3.9%; however, the role that humidity plays in these emissions is often overlooked. Here, we show that the emissions associated with reducing air humidity (i.e., removing water vapor from air) are larger than emissions associated with reducing air tem-perature (i.e., cooling air). We calculate these emissions for today and 2050 and show how dramatically humidity-related emissions will increase with rising cooling demand around the world. We also calculate the minimum separation energy for removing water vapor from air and find that this is at least an order of magnitude less than the processes used today.

引用

页码：726 / 741

页数：16

共 54 条

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