工程与知识

基础与工程

直接芯片液体冷却:高密度数据中心热管理的未来

数据中心的功率密度已飙升至每个机架 12-30 kW,因此液体冷却至关重要。了解单相和两相直接芯片系统的工作原理、制冷剂选择标准以及现代高密度数据中心中软管、管道和接头的关键设计注意事项。

风扇:第一道冷却线

风扇,就像冬天的风寒一样,流动的空气会迅速降低我们的皮肤温度,尤其是当包括汗液的蒸发时。即使使用空调的家庭也可以从使用风扇中受益。用风扇给我们的身体降温意味着我们可以调高空调的温度,从而整体节省能源。不同类型的风扇:便携式风扇、箱式或窗式风扇、吊扇、全屋风扇、阁楼风扇。 #粉丝 #Portablefans #盒子粉丝 #CeilingFans #WholeHouseFans #AtticFans #Destratification

风管气流平衡

Balancing air systems (ductwork) may be accomplished in various ways. The most common method to accomplish ductwork balancing is Proportional Method. Each diffuser is adjusted to supply the right percentage of total air volume in the ductwork.

暖通空调职业机会

The HVAC/R (heating, ventilating, and air conditioning / refrigeration) industry is rapidly changing due to advancements in technology being spurred on by the need for increased energy efficiencies. Accordingly, the career opportunities open to an individual seeking employment in HVAC fields can be divided roughly into four categories, each dependent upon a different type or degree of education and/or training.

阀门特性

为什么我们需要了解阀门特性?液体循环加热系统中的每个组件都会对液体循环加热系统的控制和性能产生一定程度的影响。阀门很关键,因为它们是传热关键区域的控制装置。

主要暖通空调系统和设备

所有主要 HVAC 系统类型和相关设备的综合列表

谷轮制冷手册下载

这是一个由五个系列的出版物组成的艾默生气候技术公司制冷手册。尽管每个单独的部分都涵盖了制冷理论和实践的特定领域,但每个后续出版物都假定您对前面各节中介绍的材料有基本的了解。

冰蓄冷系统

Thermal energy storage (TES) involves adding heat (thermal) energy to a storage medium, and then removing it from that medium for use at some other time. This may involve storing thermal energy at high temperatures (heat storage) or at low temperatures (cool storage).

制冷剂管道要求

This guide focuses on systems that use Refrigerant-22 (R-22). While the general requirements are the same for systems that use other refrigerants, velocities and pressure drops will differ.

生命周期成本分析法

The life-cycle cost analysis method is the most commonly accepted method to assess the economic benefits of energy conservation projects over their lifetime. Typically, the method is used to evaluate at least two alternatives of a given project (for instance, evaluate two alternatives for the installation of a new HVAC system: a VAV system or a heat pump system to condition the building). Only one alternative will be selected for implementation based on the economic analysis.


标准与合规性

HVAC 通风设计:按速率和 ACH 进行排气通风

Complete guide to HVAC exhaust air ventilation design using ASHRAE, CIBSE, and Carrier standards covering rate calculations, ACH requirements, and specialized applications for effective contaminant removal and energy efficiency.

HVAC Ventilation Design: Outdoor Air Ventilation By Rate and ACH

Complete guide to HVAC outdoor air ventilation design using ASHRAE, CIBSE, and Carrier standards covering rate calculations, ACH requirements, and building-specific applications for optimal indoor air quality.

HVAC Ventilation Design: Indoor Air Quality and Air Contaminants

Complete guide to HVAC indoor air quality and air contaminant management using ASHRAE, CIBSE standards covering contaminant identification, control strategies, and advanced treatment technologies for healthy indoor environments.

HVAC Ventilation Design: Air Intake Minimum Separation Distance

Complete guide to HVAC air intake minimum separation distances using ASHRAE 62.1 standards covering contamination source requirements, measurement methods, and compliance strategies for optimal outdoor air quality protection.

HVAC Ventilation Design: Air Classifications

Complete guide to HVAC air classifications using ASHRAE 62.1 and CIBSE standards covering air quality categories, contamination levels, filtration requirements, and ventilation strategies for optimal indoor environmental control.

HVAC Ventilation Design: General Schematic and Equations

Complete guide to HVAC ventilation design using ASHRAE 62.1 standards covering calculation procedures, system schematics, and modern ventilation strategies for optimal indoor air quality and energy efficiency.

HVAC Load Estimation: Fouling Factor

Complete guide to fouling factors in HVAC load estimation using Carrier water conditioning standards for accurate heat transfer equipment sizing and comprehensive water quality management strategies.

HVAC 负载估算:多样性因素

Complete guide to diversity factors in HVAC load estimation using CIBSE and Carrier standards for accurate system sizing that reflects realistic building operation patterns and prevents equipment oversizing.

HVAC 负荷估算:按建筑类型划分的室内设计条件和系统要求

Complete guide to indoor design conditions for HVAC load estimation covering temperature, humidity, air quality, and specialized requirements for residential, commercial, industrial, healthcare, and specialty building applications using ASHRAE, CIBSE, and Carrier standards.

HVAC 负载估算:渗透热增益和热损失

Complete guide to infiltration in HVAC load estimation using ASHRAE, CIBSE, and Carrier standards for accurate assessment of uncontrolled air exchange and its impact on heating and cooling loads.

以前

数字工具和资源

HVAC-R Load Calculator: Your Essential Tool for Accurate System Sizing

Our new web-based calculator combines sophisticated engineering principles with an intuitive interface, making accurate load calculations accessible to everyone from students to seasoned professionals. Unlike basic square-footage estimators, our tool considers the multitude of factors that influence heating and cooling requirements.

Interactive Psychrometric Chart

The aim of this web app is to create an interactive psychrometric chart on which you can project a range of comfort metrics as well as mapping weather data or room air conditions calculated using EnergyPlus. You can add or remove lines for a range of different metrics or highlight them individually to assist with dynamic explanations or presentations.

HVAC-R Financing Made Simple: Introducing Our Smart Equipment Calculator

we’ve developed a comprehensive HVAC-R Equipment Financing Calculator that goes beyond basic loan calculations to include industry-specific considerations like energy savings, equipment efficiency, and available tax incentives

Download Weather Design Conditions (ASHRAE)

Discover ASHRAE Handbook weather stations with our comprehensive search tool. Optimize HVAC and equipment design, sizing, distribution, and installation for residential, commercial, and industrial applications. Enhance your energy-related projects across various sectors, including agriculture, by leveraging accurate climatic data.

以前