工程与知识

基础与工程

管道压降计算：基本方程和指南

Explore the essentials of pipe pressure drop calculations, including key factors affecting pressure drop, commonly used equations, and practical tips for optimizing fluid transportation systems. Learn about software and tools that can assist in streamlining your calculations and enhance the efficiency of your projects. In this blog post, we discussed the importance of understanding pipe pressure drop calculations and their relevance across various industries. We introduced key factors affecting pressure drop, such as pipe diameter, length, flow rate, fluid properties, and pipe roughness. We also examined several equations for calculating pressure drop, including the Darcy-Weisbach, Hazen-Williams, and Colebrook-White equations, discussing their applicability and limitations.

优化数据中心的 HVAC 系统：关键考虑因素

Efficient and reliable HVAC systems are crucial for data center operations. This article covers the key aspects of HVAC system design for data centers, including load calculations, air distribution strategies, cooling system options, humidity control, and integration with building automation systems. By addressing these considerations, data center operators can ensure optimal performance and minimize the risk of equipment failure or downtime.

HVAC 设计的最佳实践

In this blog post, we’ll discuss some of the key principles and best practices in HVAC design that every engineer should know. HVAC design is an essential aspect of creating comfortable and efficient indoor environments. As an HVAC-R engineer, understanding the principles of HVAC design is crucial for designing effective, reliable, and sustainable heating, ventilation, and air conditioning systems.

显热、潜热和总热

Sensible heat, latent heat, and total heat are important concepts in HVAC. Sensible heat is the heat that is transferred to or from a substance without causing a change in phase. Latent heat is the heat that is transferred to or from a substance during a phase change, such as from a liquid to a gas or from a gas to a solid. Total heat is the sum of sensible heat and latent heat.

HVAC 中的 R 值和 U 值

R-value and U-value are two important concepts in HVAC. R-value is a measure of a material’s resistance to heat flow, while U-value is a measure of its ability to transfer heat. The higher the R-value, the better the insulation, while the lower the U-value, the better the insulation.

HVAC 中的水流量计算

Water flow rate is an important parameter in the design and operation of HVAC systems. It is important to calculate the correct water flow rate to ensure that the system operates efficiently and effectively.

风冷式冷水机组与水冷式冷水机组：选择标准

Compare air-cooled vs. water-cooled chillers. Understand selection criteria to make the best choice for your cooling needs.

了解区域供暖：可持续城市应用的高效能源分配系统 - HVAC-R 专业人员的技术概述、安装、维护和标准

Discover the benefits of district heating in HVAC systems: efficient energy distribution, reduced costs, and integration with renewable sources for sustainable urban development.

冷却/加热系统的设计程序

Design Procedures for Cooling/Heating Systems: A Comprehensive 9-Step Approach

仅冷却系统的设计程序：8 步方法

Designing efficient cooling-only HVAC systems requires a structured approach to ensure optimal performance and appropriate equipment sizing. The following 8-step procedure provides a comprehensive framework for designing these systems, where peak cooling loads determine the airflow requirements for system components.

以前

标准与合规性

HVAC 规范标准参考 – 一般：建筑分类和占用要求

Essential guide to HVAC code standards for building classifications and occupancy requirements. Learn how to apply NFPA 101 and ASHRAE 62.1 standards for proper system design and code compliance.

了解区域供暖：可持续城市应用的高效能源分配系统 - HVAC-R 专业人员的技术概述、安装、维护和标准

Discover the benefits of district heating in HVAC systems: efficient energy distribution, reduced costs, and integration with renewable sources for sustainable urban development.

ASHRAE 暖通空调设备预期寿命指南

Explore ASHRAE life expectancy of HVAC equipment and learn how it guides maintenance and replacement strategies for efficient building management.

以前

数字工具和资源

Belimo SelectPro – 免费下载

免费下载 SelectPro 桌面应用程序。使用导出构建器、报价生成器和集中参考文档来调整和选择阀门、执行器和传感器。适用于 HVAC 工程师和承包商。

常见管道材料的热膨胀率

使用我们的交互式计算器轻松计算常见管道材料的热膨胀率。获取金属和塑料的准确数据、设计见解和可操作的表格，这对于关注系统可靠性和能源效率的 HVAC 工程师、设计师和顾问至关重要。

暖通空调设备预期寿命计算器

我们创建了专业的暖通空调设备预期寿命计算器。该应用程序提供了全面的计算，用于确定各种 HVAC 设备类型的剩余使用寿命。

适用于现代 HVAC 应用的 BIM 软件解决方案

As the HVAC industry continues to evolve in 2025, Building Information Modeling (BIM) has become an indispensable tool for professionals seeking to optimize design, installation, and maintenance processes. For HVAC engineers, contractors, and technicians, selecting the right BIM software can significantly impact project efficiency and outcomes. Let’s explore the most effective BIM solutions for HVAC applications.

McQuay软件下载

McQuay (As part of Daikin Industries) is one of the largest air conditioning, heating, ventilating and refrigeration companies in the HVAC/R industry. Therefore, we decided to make some softwares that this company has introduced to the industry based on their experience and knowledge available for download.

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.

Bell & Gossett 选择软件

#Xylem Bell & Gosset #Selection、#Sizing & #CAD 工具和 #Softwares

管道时间表表

Pipe Schedule (SCH) is a standard that measures the nominal wall thickness of a pipe. The pipe schedule number is non-dimensional and depends on the nominal pipe size, internal pipe working pressure, and the material used for the pipe wall.

Piping Tools (Excel Files)

More than 165 spreadsheets (excel xls files) for a comprehensive range of calculation in Fluid, Thermal and piping engineering.

大金 Revit 文件

大金应用资源库 – REVIT 文件 屋顶系统 空气处理器 – 室外风冷式冷水机 水冷式冷水机 风机盘管 自给式水源热泵机组 通风机