Mechanical Dehumidification Equipment and Heat Pipes
ASHRAE Technical Committee 8.10

Scope of TC 8.10

TC 8.10 is concerned with mechanical dehumidification equipment and heat pipes and their design performance, applications, and features.

This document of goals and objectives is intended to give the TC long-term, specific direction and help prioritize activities.


The ASHRAE Handbook is published in a series of four volumes, one of which is revised each year, ensuring that no volume is older than four years. The Handbook can be purchased at the ASHRAE Bookstore by clicking on this link.

TC 8.10 is responsible for "Mechanical Dehumidifiers and Related Components" chapter in the HVAC Systems and Equipment volume of the ASHRAE Handbook. We just recently completed the process of revising this chapter for the 2016 handbook volume. In addition, the Handbook Committee approved our proposal to create a new chapter, titled "Dedicated Outdoor-Air Systems," which is expected to be complete in 2017.

Comment on the Handbook: ASHRAE welcomes your comments on the Handbook or a specific Handbook chapter.  To submit a comment about any aspect or part of the Handbook series, you can use the Handbook Comment Form.

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Technical committees develop and sponsor technical sessions at the winter and annual conferences. Information about their future technical program is discussed at each TC meeting and at the TC’s Program Subcommittee meeting.

ASHRAE publishes papers and transactions from presentations at its conference events. In addition, ASHRAE records most of the seminar sessions from its conferences on DVD. These DVDs are ideal for use at chapter meetings, in university courses, or company lunch and learns. Products available from the most recent conference may be found here.

TC 8.10 regularly sponsors seminars or forums at the summer and winter ASHRAE society meetings. If you have an idea for a future program (seminar, forum, or transactions paper) send it to the TC 8.10 Chair (see contact info on the home page).


Technical Committees are responsible for identifying research topics, proposing research projects, selecting bidders, and monitoring research projects funded by ASHRAE. Information about their specific research program is discussed at each TC meeting and at the TC’s Research Subcommittee meeting.

TC 8.10 cosponsors the following research project (co-sponsors: TC 1.12, TC 5.5, and TC 8.12):

This book represents the most complete and up-to-date guidance on the design, installation, and operation and management of DOAS in non-residential applications. Guided by the information in this book, HVAC system designers will be able to optimally incorporate DOAS into their projects. Architectural designers, building developers and owners, maintenance professionals, students, teachers, and researchers may also find the contents useful. This guide was published in June 2017.


ASHRAE writes standards for the purpose of establishing consensus for: 1) methods of test for use in commerce and 2) performance criteria for use as facilitators with which to guide the industry. ASHRAE publishes the following three types of voluntary consensus standards: Method of Measurement or Test (MOT), Standard Design and Standard Practice. ASHRAE does not write rating standards unless a suitable rating standard will not otherwise be available. ASHRAE is accredited by the American National Standards Institute (ANSI) and follows ANSI's requirements for due process and standards development. Standards may be purchased at the ASHRAE Bookstore.

TC 8.10 is the cognizant committee for the following standards:
1) Standard 190: Method of Testing for Rating Indoor Pool Dehumidifiers
2) Standard 198: Method of Test for Rating DX-Dedicated Outdoor Air Systems for Moisture Removal Capacity and Moisture Removal Efficiency

Other Activities

TIP: If MTG involvement add here otherwise leave blank.

TC 8.10 participates on the following multi-disciplinary task groups:

Indoor Swimming Pool Air Quality and Evaporation
MTG.ISPAQE will coordinate  the research project which will assess/identify the factors affecting air quality problems at indoor swimming pools including: air handling/ air distribution system design and operation; water quality/water chemistry;  pool water treatment operation and maintenance; pool types( flat water, agitated water, hot water); bather load; and evaporation rates of indoor pools to recommend changes to the ASHRAE 62.1 ventilation rate and update the evaporation formula in the HVAC Applications  ASHRAE Handbook.

Low Global Warming Potential Alternative Refrigerants
MTG.LowGWP is established to coordinate TC/TG/TRG technical activities to help transition the HVAC&R industry to sustainable lower Global Warming Potential (GWP) alternative refrigerants. The MTG will further request participation from US EPA and AHRI. The MTG responsibilities include suggestions for research, development and presentation of technical programs of all types on alternative lower GWP refrigerants, suggestions for Life Cycle Climate Performance (LCCP) systems evaluation for different applications, development of lower GWP solutions for different applications, and a special publication detailing aspects of LCCP applied to the HVAC&R fields.


ASHRAE Technical FAQs are provided as a service to ASHRAE members, users of ASHRAE publications, and the general public. While every effort has been made to ensure their accuracy and reliability, they are advisory and provided for informational purposes only, and in many cases represent only one person’s view. They are not intended and should not be relied on as an official statement of ASHRAE. Technical questions not addressed may be submitted to the ASHRAE Technical Services department at