ASHRAE PSYCHROMETRIC CHART NO.1 NORMAL TEMPERATURE BAROMETRIC PRESSURE: 101.325 kPa Copyright 1992 AMERICAN SOCIETY OF HEATING, REFRIGERATING AND AIR-CONDITIONING ENGINEERS, INC. SEA LEVEL 0 1.0 1.0 ∞ 1.5 2.0 4.0 -4 .0 -2 .0 -1 .0 - 0 .5 - 0 . 2 0 . 1 0 . 2 0 .3 0 .4 0.5...
199 ASHRAE 3736-1994 1994-01-01 English Psychrometric Chart 200 ASHRAE NO-94-28-1994 1994-01-01 English Laboratory HVAC Systems: Design, Validation, Commissioning 201 ASHRAE NO-94-29-1994 1994-01-01 English Validation of Pharmaceutical Clinical Supply Laboratories 202 ASHRAE NO-94-30-1994 1994-...
23、gure 1 A shows recommended temperature and humidity conditions for these classes on a psychrometric chart, and Figure 1 B shows allowable temperature and humidity conditions. Note that dew-point temperature and relative humidity are also specified.表1列出了一类、二类和NEBS的建议和允许环境要求,详...
betweentwospecificvariablesistobeexamined,thenasimplifiedThepsychrometricchartinFigure2showsaconstanttotal formoftheequationsuffices.Thetrade-offbetweenoperativeheatlosslineandtherelationshipbetweentheseindices.This temperatureandhumidityisoftenofinterest.Equation(28)canbelinerepresentsonlyonespecificskinwettednessandpermea...
Figure 2: ASHRAE Thermal Guidelines for Datacom Equipment fourth edition psychrometric chart in SI units at sea level. These conditions pertain to the air entering the IT equipment. Refer to [5] for additional footnotes, including altitude de-rating and ESD...
Find (1) the required amount of makeup and exhaust air and (2) the percentage of recirculated air. Solution: In this example, the humidity in each of the three airstreams is fixed; hence, the recycle ratio is also determined. Refer to ASHRAE Psychrometric Chart No. 1 to obtain the hum...
Environmental Specifica 23、tions 19.1.2 环境说明 Table 1 lists recommend and allowable conditions for Class 1, Class 2, and NEBS environments, as defined by the footnoted sources. Figure 1 A shows recommended temperature and humidity conditions for these classes on a psychrometric chart, and ...
Environmental Specifications 19.1.2 环境说明 Table 1 lists recommend and allowable conditions for Class 1, Class 2, and NEBS environments, as defined by the footnoted sources. Figure 1 A shows recommended temperature and humidity conditions for these classes on a psychrometric chart, and Figure 1 ...
The four data center classes including the two new ones (A3 and A4) are shown in the psychrometric chart below. A3 A4 A2 A1 Recommended Envelope Figure 2. ASHRAE Environmental Classes for Data Centers ASHRAE Classes A3 and A4 have been added to expand the environmental envelopes for IT ...
人力资源知识 ASHRAE 手册第章 数据处理和电信设施 CHAPTER 19 DATA PROCESSING AND TELECOMMUNICATION FACILITIES 第 19章 数据处理和电信设施 Design Criteria HVAC Load considerations HVAC Systems and Components Air Distribution Ancillary spaces Other Systems and considerations 设计标准 空调负荷注意事项 空调系统和组...