ASHRAE Journal - October 2021 - 82

RESEARCH REPORT
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.
1784-RP Repeatability and reproducibility assessment of
ASHRAE Standard 52.2 as currently amended
April 2019 - June 2021; 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 Efficiency by Particle Size
The purpose of this project is to determine the current variability of the
ASHRAE Standard 52.2 efficiency 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 filters. 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.
1785-RP Experimental Validation of Refrigerant Charge
Models in Coils for Residential Split Systems
August 2017 - January 2021 (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
reflect the real performance of actual systems in the field. This
is of value to BEM practitioners as well as to equipment designers. The
ASHRAE Handbook-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-Principle 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 confidence in the design and selection process for
engineers in the field, rating agencies, and manufacturers.
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ASHRAE JOURNAL ashrae.o rg O CTO B E R 2021
1799-RP Validation of Extrapolation of Performance Rating
Test Results for Small Energy Exchangers to Large
Exchangers
May 2020 - January 2022; Intertek; Principal Investigator: Krishnan Gowri
The proposed research will increase the utility of ASHRAE Standard
84 by validating its applicability to large exchangers over a broad range
of conditions. Air-to-air energy recovery is an important tool for reducing
energy consumption in buildings and is now required in ASHRAE Standard
90.1-2013 in defined circumstances. The proposed research will support
further use of air-to-air energy recovery in Standard 90.1, helping to meet
the ongoing goals for reduced energy consumption in new and renovated
buildings.
1800-RP Spray Evaporation on Enhanced Tube Bundles
with Low GWP pure Refrigerants and Refrigerant/
Miscible Oil Mixture
September 2018 - February 2021; Auburn University; Principal Investigator, Lorenzo
Cremaschi; TC 1.3, Liquid to Refrigerant Heat Exchangers; Co-sponsored by: MTG.LowGWP, TC 8.5,
Liquid-to-Refrigerant Heat Exchangers
This study would help the industry to understand the physics of thin film
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 air-conditioning and refrigeration industry. The
universal correlations and/or charts would be developed for the general
benefit 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 flooded
evaporators and its impact on the overall COP of a chiller.
1801-RP Standardizing and Utilizing ASHRAE Online BIM
Data Exchange Protocols
September 2018 - August 2020 (P); Hitchcock Consulting; Principal Investigator, Robert Hitchcock;
TC 1.5, Computer Applications; Co-sponsor, MTG-BIM, MTG, Building Information Modeling &
TC 7.1, Integrated Building Design
The objective of this research project is to bring data exchange protocols
based on ASHRAE publications, to usable completion and availability by
aligning ASHRAE exchange protocols with relevant existing BIM standards,
creating neutral format data content downloadable from the new ASHRAE
data repository (data.ashrae.org) documenting end-user guidance to support
ASHRAE members in implementing these data exchange protocols in
the adoption of BIM in their professional practice. A long-term objective is
to use this example to encourage ASHRAE committees to develop additional
data exchange protocols based on their publications.
http://data.ashrae.org http://ashrae.org
ASHRAE Journal - October 2021

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