1MYN743216-A RLLB 100 转换器单元用于转换通讯号 ABB
其从更少的瓦特和空气处理中获得更多的照明
使用较少的风扇、泵和
压缩机功率。这些代码大多基于美国
供暖、制冷和空调工程师学会
（ASHRAE）标准90.1。
在许多暖通空调设计涉及翻修和
旧建筑和系统的改造，有很好的机会
替换组件和系统概念，将提供：
通过使用较少的能量而获得类似或改善的舒适性。因此，我们建议
新建和改造建筑中的五个节能T：
1.关掉它！断开开关没有替代品。提供
关闭不使用能源的系统的机制
需要。
2.小声点！如果必须运行，则将其设计为在低级别运行
其仍将满足职责。尝试提供调制控制
对于所有能源消耗者。
3.调整一下！操作员：保持设备处于良好的运行状态。
设计人员：可靠性和可维护性设计。
4.转身！对于改装设计师：如果您找到一个系统
消耗过多的能量，改进它。
5.把它扔掉！如果一个系统是一个能源消耗者，并且不放贷
自己去康复，愿意把它拿出来。改造设计
从2000年到未来几十年的市场是一个主要的工业市场。
节能的一个好处是它几乎总是如此
自食其力。但有时需要一些教学和长远的眼光
需要将信息传递给控制钱包的人
串。
一句警告的话。节能在暖通空调设计中很重要，但不是暖通空调系统的目的或功能。暖通空调
系统旨在提供舒适或受控环境。
如果我们将能量保存到忽略系统
功能，那幺我们没有履行我们的职责。拥有没有荣耀
一座节能的建筑让租户远离，但
不舒服的暖通空调系统。也没有对能量的感激
电子工厂生产产量下降的经理
暖通空调工程基础：1部分
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暖通空调工程基础：1部分13
尽管能源成本较低，但缺乏适当的空气质量浪费
“不，不要”是能源格言使用你需要的，但需要什么
您使用“”是一个推论。有关此主题的更多信息，请参阅参考文献8。
1.11摘要
必须掌握工程基础的一手知识
暖通空调设计师。所有的问题都有一种能力帮助解决
清晰思考，从问题定义到识别
备选方案、备选方案评估、优选行动的选择和实施。了解政治约束（准则
和法规）以及技术和道德因素是设计师工具箱的重要组成部分。具备流体力学、热力学、传热等基础工程物理知识，
湿度测量和声音控制对于暖通空调来说是必要的
设计师系统设计中的节能已成为一种道德
迫切的了解这些基本原理将使
本书中处理的其他问题更容易理解。
工具书类
1.戴尔伊索洛、阿尔方斯、价值工程
1MYN743216-A RLLB 100 转换器单元用于转换通讯号 ABB
1MYN743216-A RLLB 100 转换器单元用于转换通讯号 ABB
which derive more illumination from fewer watts, and air-handling
systems which move more air and water with less fan, pump, and
compressor power. Most of these codes are based on the American
Society of Heating, Refrigerating, and Air-Conditioning Engineers
(ASHRAE) Standard 90.1.
In a time when much HVAC design involves the renovation and
retrofit of older buildings and systems, there is good opportunity for
substitution of components and system concepts which will provide
similar or improved comfort by using less energy. Thus we suggest the
five T’s of energy conservation in both new and retrofit construction:
1. Turn it off ! There is no substitute for the off switch. Provide a
mechanism to turn off energy-using systems when they are not
needed.
2. Turn it down! If it has to run, design it to run at the lowest level
which will still meet the duty. Try to provide modulating control
for all energy consumers.
3. Tune it up! To operators: Keep things in good operating condition.
To designers: Design for reliability and for maintainability.
4. Turn it around! For retrofit designers: If you find a system which
consumes disproportionate amounts of energy, improve it.
5. Throw it away! If a system is an energy hog and does not lend
itself to rehabilitation, be willing to take it out. The retrofit design
market for the year 2000 on into the next decades is a major industry market.
One good thing about energy conservation is that it nearly always
pays for itself. But sometimes a bit of teaching and long-term vision
are needed to get the message to the person controlling the purse
strings.
A word of caution. Energy conservation is important in HVAC design, but it is not the purpose or function of the HVAC system. HVAC
systems are intended to provide comfort, or a controlled environment.
If we conserve energy to the point that we lose sight of the system’s
function, then we have failed in our duty. There is no glory in owning
a building that drives tenants away with its energy-conserving but
uncomfortable HVAC systems. Nor is there gratitude to an energy
manager in an electronics plant where the production yield drops for
HVAC Engineering Fundamentals: Part 1
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HVAC Engineering Fundamentals: Part 1 13
lack of proper air quality even though energy costs are low. ‘‘Waste
not, want not’’ is the energy motto. ‘‘Use what you need, but need what
you use’’ is a corollary. See Ref. 8 for more on this topic.
1.11 Summary
A first-hand knowledge of engineering fundamentals is a must for
HVAC designers. All problems are helped toward solution by an ability
to think clearly, to move from problem definition to identification of
alternatives, to evaluation of alternatives, to selection and implementation of preferred action. Knowledge of political constraints (codes
and regulations) as well as technical and ethical factors is an important part of the designer’s tool kit. Knowledge of fundamental engineering physics in fluid mechanics, thermodynamics, heat transfer,
psychrometrics, and sound control is absolutely essential to the HVAC
designer. Energy conservation in system design has become a moral
imperative. An understanding of these fundamentals will make all
other issues treated in this book easier to understand.
References
1. Dell’Isolo, Alphonse, Value Engineeri
1MYN743216-A RLLB 100 转换器单元用于转换通讯号 ABB
1MYN743216-A RLLB 100 转换器单元用于转换通讯号 ABB
