ILLUSTRATED HVAC LOAD CALCULATIONS AND SYSTEM DESIGN: Heating and Cooling Loads, Psychrometrics, Duct Sizing, and Equipment Selection for Residential and Commercial Buildings - Softcover

Inhaltsangabe

Most comfort complaints in a building trace back to one number that was estimated instead of calculated. When the heating or cooling load is wrong, the equipment is the wrong size, and no amount of adjustment in the field fully corrects it.

Many people who design or specify heating and cooling systems know that loads matter, yet fall back on rules of thumb scaled from floor area because a full calculation can feel abstract, scattered across disconnected sources, and hard to connect to the equipment decision at the end. Load calculation and system design are too often treated as two separate subjects.
This illustrated guide treats them as one continuous process. It develops each heat-transfer mechanism from its physical basis, assembles the parts into complete heating and cooling procedures, and carries the result forward into airflow, duct and pipe sizing, and equipment selection — so a single number travels from the design conditions to the finished equipment schedule. Fifty original figures explain each mechanism before it becomes an equation.

Inside, you will:

• Understand the difference between heat gain, cooling load, and coil load, and why it changes the way equipment is sized.
• Work through psychrometrics and the psychrometric chart, with every variable and unit defined.
• Calculate envelope, solar, fenestration, infiltration, ventilation, and internal-gain loads as connected parts of one result.
• Build cooling loads with heat-balance and radiant-time-series methods, and heating loads with clear residential and simplified procedures.
• Size ductwork and hydronic piping, and select fans, pumps, and heating and cooling equipment from performance data at design conditions.
• Check your work against independently computed worked examples and practice problems with a full answer key.
• Follow two complete case studies — a residence and a commercial building — from design conditions to a finished design.

The book covers both residential and commercial work, uses inch-pound units with SI equivalents throughout, and closes with reference appendices of notation, unit conversions, representative design data, and blank worksheets.
It is written for mechanical and HVAC design engineers, engineering students, candidates preparing for professional practice, and technically minded designers and contractors who want to replace guesswork with calculations they can stand behind. Each method is explained in plain physical terms first, so readers approaching from the trade side can follow the reasoning before the mathematics.

Open the book and begin developing the knowledge to calculate loads and design heating and cooling systems with greater clarity and confidence.

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