SCYC46020 58051217 自动化控制板进口 ABB
这种装置在亚利桑那州和内华达州等地区很常见，在这些地区，空气中的水分去除不是
以及从该系统添加到空气中的水分有助于提高低露点。启动
在外部空气入口，空气进入外部空气管道，并与来自空间的返回空气混合
过滤器（B）。混合后的空气通过一组过滤器排出杂质。然后空气就过去了
一组加热线圈（C），必要时将空气加热至所需温度。然后空气通过
通过蒸发介质（D）。该介质是一种采用蜂窝状设计的垫，充满了冷空气
IPI在环境中实施可持续节能战略的方法（2017年）
水当空气通过介质时，来自垫的水蒸发到空气中。此过程删除
来自空气的能量导致较低/较冷的温度，同时将水分添加到
通过空气，增加露点。接下来，空气被吸入送风机（E），送风机将推动空气通过
供应管道系统，通过扩散器进入空间。然后，回风机（F）将从
空间并将其推过回流管道系统。空气被排出或返回至待混合的装置
室外空气，重新开始循环。
制冷剂/冷却剂循环：
加热线圈由热源（例如锅炉或电力）供给。来自这些线圈的热量被传递
对经过它的空气。
蒸发介质是利用蜂窝设计的纤维素材料制成的垫。供应系统
通过向介质表面浇水或滴水来添加水。这些水沿着介质和
没有被吸收或蒸发到空气中的物质将收集在一个特殊的池中。水池里的水被泵回
直到介质顶部并重复使用。游泳池设计有一个浮子，以防止溢流和供水
如果游泳池水位过低，管线将替换任何损失的水。
系统变化：
1.系统可以具有多组过滤器以去除不同水平的杂质。
2.加热线圈可能不存在于每个单元中。
3.加热盘管可能位于管道系统中较远的管线下方，称为再热。作为线圈的再加热
将在空气从管道排出之前将空气加热特定空间。
4.每个装置中可能不存在回风机。如果送风机产生足够的吸力，它会吸走空气
穿过太空。
循环辐射热系统
（例如：底板、辐射地板、散热器等）
组件/布局：
安全阀
锅炉
抽水机
阀门
散热器
恒温器
IPI在环境中实施可持续节能战略的方法（2017年）
23
空气流量：
散热器是通过辐射传递一部分热量和一部分热量的散热单元
通过对流。与散热器接触的空气将通过对流吸收热量，而附近的物体
散热器将通过辐射吸收热量。内部线圈周围的框架或外壳将有助于引导热量
远离散热器的运动。用家具或窗帘遮挡或覆盖这些散热器将：
这妨碍了它们的效率。
热水辐射系统
该系统从在主要水源（锅炉、热水系统等）加热的水开始。这水变成
蒸汽（220°F）或热水（170°F）。有些系统甚至可能使用高温水（350°-450°F）
或中温水（250°-350°F）。高温和中温系统在高温下运行
压力以避免水闪蒸成蒸汽。
在热水系统中，水将通过供应管线从锅炉（B）泵送至散热器（E）。
水从一侧进入散热器，通过一条翅片覆盖的管道，热量来自水
当空气通过翅片时，空气从空间转移到空气中。当水通过散热器时
水的热量损失了。离开散热器的水比进入散热器的水冷。
在离开散热器时，较冷的水将串联连接到其他散热器或返回到锅炉，
这取决于系统的设计。
如果散热器串联连接，则w
SCYC46020 58051217 自动化控制板进口 ABB
SCYC46020 58051217 自动化控制板进口 ABB
s type of unit may be common in areas like Arizona and Nevada, where moisture removal from the air is not a
concern and where the moisture added to the air from this system helps to improve the low dew point. Starting
at the outside air intake, air enters the outside air duct and is mixed with return air from the space just before the
filters (B). The mixed air is pulled through a set of filters where impurities are removed. The air then passes over
a set of heating coils (C) where the air is heated to the required temperature if necessary. The air then passes
through the evaporative media (D). This media is a pad utilizing a honeycomb design that is saturated with cool
IPI’s Methodology for Implementing Sustainable Energy-Saving Strategies in Collections Environments (2017)
water. As the air passes over the media, water from the pad is evaporated into the air. This process removes
energy from the air resulting in a lower/cooler temperature, while at the same time adding moisture to the
passing air, increasing the dew point. Next, the air is pulled into the supply fan (E), which will push the air through
the supply ductwork, through the diffusers and into the space. The return fan (F) will then pull in air from the
space and push it through the return ductwork. Air is either exhausted or returned to the unit to be mixed with
outside air and start the cycle all over again.
Refrigerant/Coolant Cycle:
The heating coils are fed from a heat source such as a boiler or electricity. The heat from these coils is transferred
to the air passing over it.
The evaporative media is a pad made of a cellulose material that utilizes a honeycomb design. A supply system
adds water by pouring or dripping water onto the face of the media. This water cascades down the media and
what is not absorbed or evaporated to the air will collect in a special pool. Water from the pool is pumped back
up to the top of the media and reused. The pool is designed with a float to prevent overflow and a water supply
line will replace any lost water if the pool gets too low.
System Variations:
1. A system may have multiple sets of filters to remove different levels of impurities.
2. A heating coil may not be present in every unit.
3. A heating coil may be farther down the line in the ductwork in what is called a reheat. As a reheat the coil
will heat the air for a specific space just before it is discharged from the ducts.
4. A return fan may not be present in every unit. If the supply fan creates enough of a draw, it pulls the air
back through the space.
Hydronic Radiant Heat Systems
(ex: baseboard, radiant floors, radiators, etc.)
Components/Layout:
Relief Valve
Boiler
Pump
Valve
Radiator
Thermostat
IPI’s Methodology for Implementing Sustainable Energy-Saving Strategies in Collections Environments (2017)
23
Air Flow:
Radiators are heat emitting units that transfer a portion of their heat through radiation and a portion of their heat
by convection. Air that is in contact with the radiators will absorb heat through convection, while objects near
the radiators will absorb heat through radiation. Frames or casings around the inner coils will help direct the heat
movement away from the radiators. Blocking or covering these radiators with furniture or window coverings will
hinder their efficiency.
Hot Water Radiant System
This system starts off with water heated at a main source (boiler, hot water system, etc.). This water is turned into
either steam (220°F) or hot water (170°F). Some systems may even use high temperature water (350°-450°F)
or medium temperature water (250° - 350°F). The high and medium temperature systems operate under high
pressure to avoid the water flashing to steam.
In a hot water system, the water will be pumped from the boiler (B) through the supply lines to the radiators (E).
The water enters the radiators on one side traveling through a fin covered line where the heat from the water
is transferred to air from the space as the air passes through the fins. As the water passes through the radiators
heat from the water is lost. The water exiting the radiators is cooler than the water that entered the radiators.
Upon leaving the radiator the cooler water will either connect in a series to other radiators or return to the boiler,
depending on the design of the system.
If the radiators are connected in a series the w
SCYC46020 58051217 自动化控制板进口 ABB
