SPD4121 HVAC Technology for Plumbing Engineers

SPD4121 HVAC Technology for Plumbing Engineers

Air conditioning processes and cycles

1. Psychrometric processes

    - Common processes
    - Typical devices
    - Calculations

2. Psychrometric analysis

    - External climate
    - Design strategies

[Powerpoint file in PDF format]

>>> Download lecture notes handouts (for self study):

Psychrometric Processes [DencoCH2.pdf]

Common Processes
Typical Devices

[Suggested solution to the quick revision exercise: DencoAnswers.pdf]

Video Presentation:

Psychrometric Chart - air conditioning processes (3:00) http://www.youtube.com/watch?v=C93mWf3rr30
An Example Using the Psychrometric Chart (6:25) http://www.youtube.com/watch?v=xzT9y0QZz20
Use Psychrometric chart for cooling moist air (9:45) http://www.youtube.com/watch?v=A6PVsARawvs

Further Reading:

Air Conditioning: Psychrometrics (pages 5 to 20) [BSE notes] http://www.arca53.dsl.pipex.com/index_files/psy1.htm
CIBSE Journal CPD Programme: http://www.cibsejournal.com/cpd/

The basic psychrometric processes (Oct 2009) http://www.cibsejournal.com/cpd/2009-10/
The psychrometrics of HVAC sub-systems (Dec 2009) http://www.cibsejournal.com/cpd/2009-12/
The psychrometrics of air conditioning systems (Mar 2010) http://www.cibsejournal.com/cpd/2010-03/
Travelling into time with psychrometry (Dec 2010) http://www.cibsejournal.com/cpd/2010-12/

References:

NPTEL E-learning course -- Refrigeration and Air Conditioning http://nptel.ac.in/courses/112105129/

Lesson 28 Psychrometric Processes http://nptel.ac.in/courses/112105129/28
Lesson 30 Psychrometry Of Air Conditioning Systems http://nptel.ac.in/courses/112105129/30

Gatley, D. P., 2005. Understanding Psychrometrics, 2nd ed., American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Atlanta, GA. [551.5710287 G2]
Sherif, S. A., 2002. Overview of psychrometrics, ASHRAE Journal, 44 (7): 33-39. [PDF]

Web Links:

Psychrometric Charts [Autodesk Sustainability W/S] http://sustainabilityworkshop.autodesk.com/buildings/psychrometric-charts
Psychrometrics and Bioclimatic Analysis for Hong Kong http://www.ad.arch.hku.hk/~cmhui/teach/65156-7e.htm

| Created: Jul 2016 | Update: 29 Jul 2016 |