Fabio M. Clavijo, P.E.
Calle 145 # 15-59, Apt. 204
Bogota, DC 110121
Region: XII
Honorarium: None

Fabio began his professional engineering career 41 years ago in Tecnaire Ltda -HVAC Engineering and Contracting Company located in Bogota, Colombia, South America- initially as Junior Engineer and fulfilling over time challenging positions as Regional Manager, Technical VP and lately President/Owner since 1991. He obtained his bachelor degree in Industrial Engineering from Universidad Javeriana (1978) and followed complementary professional studies and advanced engineering programs including: .

He is a registered Professional Engineer in Colombia.

Following his active participation in the Contracting side of the HVAC engineering for more than 35 years in very diverse projects including; Data Centers, Hospitals, Airports, Industry and Commercial applications, in recent years he has dedicated mainly to advance as a Consultant Engineer, as well as, Energy and Environmental Assessment Audits. .

Fabio has attended several National and International Engineering Seminars and Conferences visiting several Latin American countries, New Zealand and United States as a Distinguished Lecturer. He has been guest professor at various Colombian Universities and is Director of ACAIRE HVAC Advanced Engineering Program in Bogota (2015-2019).

He was leading co-founder of ACAIRE -Colombian HVAC+R Association (1980) and has served at the Board of Directors in multiple periods including; Controller (2001-2005), Vice-President (2006) and President (2007-2008). Also, founder and President of ASHRAE Colombia Chapter (2010-2012, 2017-2019), and AEE -American Energy Engineers Assoc. Colombia Chapter (2016). .

Mr. Clavijo is ASHRAE member since 1983 and has been recipient of multiple awards and recognitions from National and International organizations including; ASHRAE Distinguished Service (2015) and Life Member (2017). Also ACAIRE Honorary Member (2014) and Distinguished Industrial Engineer by Universidad Javeriana, Bogota (2010). .

He led as ACAIRE Editing Director of the book “Air Conditioning and Refrigeration in Colombia” (2006), as well as, Research Project Director and Book author of “Chilled Water Systems - Energy Efficiency and Environmental Guide” (2013) and “Climate Design Conditions for HVAC+R projects for 16 Colombian cities” (2016). He is author of various technical articles published in several national and international engineering magazines and journals. .

Several Research projects and an International Technology Mission led by Fabio have been accomplished and recognized over the years, thru integration of joint efforts with Government agencies, Private sector and Universities in Colombia. .

Dehumidification - Basic Concepts

This presentation will guide attendants thru an extended understanding of the psychometric chart and those detailed humidity variables that are critical in humidity issues. The session will follow thru a deeper exploration of moisture concepts, loads and the resulting humidity impact on buildings, operational costs and comfort complains.

The evaluation of alternative solutions will lead to review building construction issues, HVAC equipment selection and associated ways to integrate temperature and humidity control along with building operation. Finally, a brief presentation of dehumidification technologies will close the session.

Dehumidification Processes

An analysis of psychrometric processes in medium and low humidity applications will guide attendants thru the moisture psychrometric and engineering analysis, as well as, equipment selection and control strategies. A detailed study of humidity sources and the associated effects will enhance opportunities to improve building construction, design and specifications in low and medium humidity applications.

Configuration of various system arrangements and technologies will extend the presentation to show energy and humidity control performance.

Indoor Air Quality And Ultra-Violate (Uvc) Technology

A brief review of air filtration technology followed by an analysis of microorganisms´ behavior and replication activity in buildings and A/C systems will follow the understanding of how microorganisms affects human health in buildings, creating IAQ problems.

Introduction of UVC history and recent technology developments will guide attendants towards a deeper understanding of ways to solve previous IAQ issues thru a further review of air handling systems selection, operation and maintenance, resulting in higher overall improved operation costs, as well as, building energy efficiency and performance.

Energy In Buildings – An Hvac Perspective For 21st Century
The increasing global warming effect and need to limit fossil energy use within the following decades, call for the engineering community to develop new technologies associated with high efficiency and clean energy solutions. The introduction of today´s incoming refrigerants used in the HVAC+R industry and their environmental impact, will be followed by a review of energy efficiency concepts in buildings, and also HVAC design, installation and operation opportunities and facts referenced by ASHRAE STD-90.1, ASHRAE STD-189.1 and green guides. The session will identify opportunities to improve building performance thru overall energy efficiency HVAC solutions supported by DOAS systems, energy recovery, thermal storage and renewable energy sources. Research presentations on Advanced Energy Design Guides (AEDG´s) as well as, Net Zero Energy Balance (NZEB) buildings developed by ASHRAE, will engage attendants with key opportunities to enhance building energy consumption and power generation, as well as, improved operational costs thru multidisciplinary work teams towards high energy performance buildings. ASHRAE bEQ and LEED certification processes presentation will focus on main efforts and decisions to strive toward key opportunities to reach Energy and Environmental (E+E) sustainable projects.

Last months since 2020 have accelerated the research activity within ASHRAE among many other technology conglomerates to understand initially the way COVID-19 made an impact on people´s health thru the various contamination routes.

Industry leaders and researchers have moved towards solutions to limit risks thru their many routes of daily activity while keeping viable HVAC standing systems under best possible adaptation possibilities.

The session will review microorganisms’ structure and replication viability, followed by accepted proved HVAC strategies and technologies that support improved Indoor Air Quality and safe health environments.

A presentation of ASHRAE position on Airborne Diseases will characterize technical solutions that promote safer environments within enclosed spaces.

Equatorial countries face, thru the year, sustained weather conditions driven by dry and rainy periods where small temperature variations are associated with ample variations in relative humidity. The session will explain how these conditions call for design criteria and systems operation control strategies capable of responding to comfort –temperature and humidity- conditions along with altitude while keeping acceptable humidity ranges under control. Such extreme hot and humid conditions at sea level, do have a negative impact in expected life cycle of buildings, furniture, and equipment when HVAC design parameters are underestimated. Such conditions call for the need to advance in the evaluation and integral solutions applied to Equatorial region from the early HVAC design, installation and operation stages while complying with acceptable annual energy performance. Research projects based on actual outdoor climate design conditions for HVAC systems in Equatorial Region countries will propose new design and building construction criteria based on actual climate data reports.
The initial part of the presentation will reference definitions, objectives, and methods to follow when complying with STD 90.1 is an objective. A detailed analysis of climate zones and façade construction thermal performance will provide deeper understanding of the standard complying options along with the building and the air conditioning system energy acceptable solutions. After the session, attendants will have a broad understanding of concepts and general criteria applicable to buildings in compliance with acceptable energy efficiency trends as well as those opportunities to improve performance over time.
Compliant Indoor Air Quality (IAQ) process follows alternative routes in STD-62.1. The session will allow attendants to understand design criteria, from the initial design stages, as well as, thru the operation and maintenance of HVAC systems to comply with IAQ requirements. The presentation will provide requirements and calculations to reach acceptable Indoor Air Quality along with design criteria and variables. Detailed practical information will be set under discussion to settle down engineering criteria to support professionals working either at the design, job installation and operation stages.
The Air Conditioning process follows multiple design criteria to provide acceptable comfort conditions for occupants. The presentation will expose variables and criteria under study to comply with this standard, as well as technical requirements and compliance routes that are acceptable at design, installation and operation stages.
The Energy Audit process of existing energy HVAC systems and buildings has advanced in recent years based on the need to improve and control Energy and Operation Performance. The process of documenting the auditing work based on the tasks and agreed objectives supports proposals to improve systems performance combining financial and operational opportunities. The presentation follows alternative auditing routes to advance in the process according to the situational client needs correlating energy and opportunities based on initial costs, operational savings and return on investment figures.