ASHRAE Journal - October 2023 - 69

RESEARCH REPORT
in IAQ monitoring and integration into smart building systems. Status: Active Project. Still need
technical paper deliverable, TC Vote on fi nal report to close-out.
 1760-RP, Update of Clothing Database for Existing and New
Western Clothing Ensembles, Including Effects of Posture, Body,
and Air Movement
April 2018 - August 2021 (P); Loughborough University; Principal Investigator:
George Havenith; TC 2.1, Physiology and Human Environment
To improve the clothing database, to provide data that are not presently available for input into
Standard 55 and other models, and to make these standards and methodologies more accurate
in their application to situations where western attire is worn.
 1769-RP, Experimental Evaluation of the Effi ciency of Belt
Drives for Fans
September 2018 - August 2022 (P); AMCA International Inc.; Principal
Investigator: Mark DeRoo; TC 5.1, Fans
The results of this research effort will provide tools to air system designers to allow them
to separate out the impacts of belt part-load effi ciency on system effi ciency, to compare the
effi ciency levels of belt- and direct-driven fans, and to balance energy savings with other
requirements used in the fan system selection process. Status: Active Project. Still need
technical paper deliverable, and Disposition of ASHRAE Research Results form to close-out.
 1780-RP, Test Method to Evaluate Cross-Contamination of
Gaseous Contaminants Within Total Energy Recovery Wheels
April 2020 - December 2022 (P); University of Saskatchewan; Principal
Investigator: Carey Simonson, P.Eng., Ph.D., FASHRAE, Professor; TC 9.10
Laboratory Systems; Co-sponsors: TC 2.3 & SSPC 621.1
The Environmental Health and Safety professionals, laboratory designers and other ASHRAE
Members need reliable gaseous contaminant transfer data measurements methodologies to
complete the necessary risk assessment when evaluating energy recovery systems for their
laboratory ventilation projects. Technologies shown to limit contaminant transfer would allow
greater energy savings and reduce the carbon footprint. Compared to commercial buildings, the
opportunity for energy savings in laboratories is much greater. ASHRAE should play a leadership
role in optimizing the HVAC systems in laboratories while keeping safety a top priority. Status:
Active Project TC 9.10 is reviewing the draft fi nal report for approval. Still need TC approval vote,
technical paper deliverable, and Disposition of ASHRAE Research results form.
 1784-RP, Repeatability and Reproducibility Assessment of
ASHRAE Standard 52.2 as Currently Amended
April 2019 - September 2022 (P); Owen Air Filtration Consulting, LLC;
Principal Investigator; Kathleen Owen.
TC 2.4, Particulate Air Contaminants and Particulate Removal Equipment;
SSPC 52.2, Method of Testing General Ventilation Air-Cleaning Devices for
Removal Effi ciency by Particle Size
The purpose of this project is to determine the current variability of the ASHRAE 52.2
effi ciency and Appendix J tests especially related to the changes to the method since 1088-RP,
to produce repeatability and reproducibility statements, and to look for possible improvement to
the method if needed. Multiple labs will be engaged to run interlaboratory comparison testing
for at least 5 types of HVAC particle fi lters. QA data will be collected in addition to the standard
test data. This project will require good study design, test planning including making sure the
tests are run correctly, data analysis by experienced eyes and standard ASTM procedures, and
communicating the results through reporting, presentations, and change suggestions for the
method. Status: Active Project TC 9.10 is reviewing the draft fi nal report for approval. Still need
TC approval vote, technical paper deliverable, and Disposition of ASHRAE Research results form.
 1785-RP, Experimental Validation of Refrigerant Charge
Models in Coils for Residential Split Systems
August 2017 - January 2023 (P); Oklahoma State University; Principal
Investigator: Christian Bach; TC 8.11, Unitary and Room Air Conditioners
and Heat Pumps, Co-sponsored by: TC 8.4, Air-to-Refrigerate Heat Transfer
Equipment and TC 6.3, Central Forced Air Heating and Cooling Systems
This project will improve equipment models so that they may more accurately refl ect the real
performance of actual systems in the fi eld. This is of value to BEM practitioners as well as to
equipment designers. The ASHRAE Handbook of Fundamentals 2013 outlines several energy
modeling tools that are widely used in the industry (e.g., DOE2, EnergyPlus, TRNSYS) and the
current methodologies for equipment modeling (Regression Models and First-Principal Models).
Unitary split systems, especially heat pumps, which are used widely in both Residential and
Commercial applications pose unique challenges. Since not every rated split system match
is lab tested, modeling is leaned on heavily. A weak link in this process is refrigerant charge
inventory. Improving the robustness of charge migration modeling will result in greater
confi dence in the design and selection process for engineers in the fi eld, rating agencies, and
manufacturers.
 1789-RP, Optical and Thermal Performance of Hollow Glass
Block Units
Sep. 2022 - Oct. 2024 (P); University of North Texas; Principal Investigator:
Weihuan Zhao; TC 4.5, Fenestration
This research will provide useful results to update the section on HGB of the Fenestration
Chapter of future editions of the ASHRAE HOF by including performance data of current HGB
products. The aim of the project is to develop simplifi ed models for implementation in existing
fenestration design tools and building energy simulation software to enable glass block
industries, building design professionals and engineers generate design performance data and
comply with the requirements of relevant building energy effi ciency standards and building
energy codes.
 1800-RP, Spray Evaporation on Enhanced Tube Bundles with
Low GWP Pure Refrigerants and Refrigerant/Miscible Oil Mixture
September 2018 - February 2023 (P); Auburn University; Principal Investigator,
Lorenzo Cremaschi; TC 1.3, Liquid to Refrigerant Heat Exchangers; Cosponsored
by: MTG.LowGWP, TC 8.5, Liquid-to-Refrigerant Heat Exchangers
This study would help the industry to understand the physics of thin fi lm evaporation
phenomenon for pure low GWP refrigerants and refrigerant/miscible oil mixtures on structured
3-D enhanced tubes and help optimize such exchangers for air-conditioning and refrigeration
applications. The basic objective of this project will be to perform spray evaporation heat
transfer and pressure drop tests on a tube bundle with low GWP refrigerants and refrigerant/
miscible oil mixtures at various temperature and pressure conditions of interest to airconditioning
and refrigeration industry. The universal correlations and/or charts would be
developed for the general benefi t of the stakeholders. The investigator(s) is/are expected
to present the results of the study in a manner that clearly and quantitatively shows the
enhancement factors achieved compared to conventional fl ooded evaporators and its impact on
the overall COP of a chiller.
 1806-RP, Flammable Refrigerants Post-Ignition Simulation
and Risk Assessment Update
January 2017 - January 2023 (P); Gexcon, US; Principal Investigator: Scott
Davis; MTG.LowGWP
The objective of this project is to understand the severity of events where fl ammable
refrigerants are ignited under different scenarios for various HVAC&R products. Such
understanding will allow for the assessment of the overall risks of using fl ammable refrigerants
in HVAC&R products, considering both event Probability and Severity.
 1815-RP, Integrating Occupant Behavior Data into Building
Information Modeling for Performance Simulation
September 2022 - August 2024 (P); Carmel Software Corporation; Principal
Investigator, Stephen Roth; MTG.OBB: Occupant Behavior in Buildings;
Co-sponsored by: MTG.BIM, TC 1.5, Computer Application TC 4.7, Energy
Calculations & TC 7.6, Building Energy Performance
The objective of this RP is to assess the representation of building occupant behavior in
Building Information Modeling (BIM) and Building Energy Modeling (BEM) workfl ows and
develop proposals for implementation and adoption of data schema enhancements to leading
open standards bodies (i.e. - gbXML, IFC).
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ASHRAE Journal - October 2023

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