Online educational resource on achieving indoor environmental quality with radiant based HVAC systems
Not for profit educational resource on indoor environmental quality.
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Fundamentals of indoor environmental quality / thermal comfort and air quality solutions using radiant based HVAC

      

Figure 1. Task list for the Capstone Project: Overview of key learning objectives students will cover in the class.

 

Figure 2. Overhead view of project with required hybrid mechanical schematic. Students will learn how to calculate inside surface temperatures, mean radiant temperatures and operative temperatures and specify building and mechanical systems for thermal comfort; as well as evaluate interior finishes, air flow rates and filtration for indoor air quality. Additionally participants will learn about calculating pressures, flows and temperatures in ducts and pipes; and how to specify control valve characteristics and CV's, balancing valves and settings as well as determine mixed fluid temperatures for 2 pipe/4 pipe systems.

 

Figure 3. Students will be able to summarize performance and equipment specifications along with sample details typical of piping schematics.

 

Figure 4. Participants will learn how to use the ASHRAE Design Nomograph for radiant cooling and heating panels. This tool is used to establish operating fluid temperatures in the system based on panel characteristics, tube spacing, and building performance. Values derived from this tool will be used in the project spreadsheets for evaluating other space conditions.

 

Figure 5. Screen shot of page one worksheet - evaluates average unconditioned surface temperatures (AUST), mean radiant temperatures (MRT) and operative temperatures (top); plus it will be used along with the CBE Thermal Comfort Tool (Figure 6 below) for establishing compliance with ASHRAE Standard 55 Thermal Environmental Conditions for Human occupancy. Click for larger image.

 

Figure 6. Screen shot from the CBE Thermal Comfort Tool. This tool is used to evaluate the Capstone Project compliance with ASHRAE Standard 55. Students are required to become familiar with this tool throughout the course curriculum.

 

Figure 7. Screen shot from page two of the Capstone Project Excel calculator. This page is used to determine the performance requirements for the heating and cooling coil for sensible and latent loads on the dedicated outdoor air system; determine valve authority and specify valve CV's; as well for designing a radiant floor cooling and heating system. Click for larger image.

For a background on what this course covers see these free slide presentations:

Relationship Between Building Performance, Thermal Comfort, and Indoor Air Quality

Relationship between HVAC System Types and Energy and Exergy Efficiency, Entropy, Thermal Efficacy, IAQ and Thermal Comfort

 

Past students said...

Fantastic course, really enjoying the blend of breadth and depth!

My knowledge in heat transfer and building science principles is good. However, this week I learned the intricacies of integrating IEQ into the equation.

I am becoming more and more interested in this topic of exergy efficiency, mostly inspired by your graph and the readings in the course. Thanks!

Content is fantastic.

Overall, this is fantastic and timely material, I'm learning a lot and am thrilled I signed up.

I'm happy to be taking a class from you.

Thank you very much for accumulating all of this knowledge over the years and sharing it with us.

Online registration is now open for the March 2015 course.

If you have any questions about the course you can talk with us directly at our Linked-In discussion group or though the HeatSpring Learning Institute.

 

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