[Bldg-sim] Fw: [Building Simulation Users Group] BSUG March 24th

Agnes, Dylan (dagnes@uidaho.edu) dagnes at uidaho.edu
Mon Mar 8 14:19:05 PST 2021

Hello All,

We are excited to kick off the first half of BSUG! The first BSUG will be held on March 24th and will focus on radiant systems research by Carlos Duarte – Postdoctoral Scholar UC Berkeley. The lecture will focus on a simulation study investigating the feasibility of coupling cooling towers/fluid coolers with high thermal mass radiant systems in US climates. Please see the newsletter below to sign up.

In addition, the second BSUG will take place on April 28th and be presented by Ian Molloy. Ian will be discussing the recent developments utilizing the same analytical model as Insight but EnergyPlus through OpenStudio for the engine. The remaining BSUG lectures will focus on the following topics:

Passive Design Strategies – Climate Design Tools
Early Design Workflow
Data Visualization
LLLC’s Live Demo
Air Quality for Energy Efficiency

If you know someone who you think would be a good presenter, please let us know by emailing Dylan Agnes at dagnes at uidaho.edu<mailto:dagnes at uidaho.edu>


Research Scientist I

University of Idaho – Integrated Design Lab

322 E. Front St. Boise, ID. 83702

dagnes at uidaho.edu – www.idlboise.com<http://www.idlboise.com/>

W - 208.364.4622


From: idlboise.com <webmaster at idlboise.com>
Sent: Monday, March 8, 2021 3:08 PM
To: Agnes, Dylan (dagnes at uidaho.edu) <dagnes at uidaho.edu>
Subject: [Building Simulation Users Group] BSUG March 24th

BSUG March 24th

Presenter - Carlos Duarte
How High Can You Go?: Simulation study on high-temperature cooling for radiant systems

Target Audience:

Engineers, Architects, & Simulationists

Date and Time:

March 24th, 2021 – Noon to 1:00 p.m. MT


Zoom Webinar


WEBINAR Presentation Click Here<https://uidaho.zoom.us/meeting/register/tZcvfuqgqTssE9P01HtX3vwFP2kHgH_pB_yx>

The need for cooling is a major driver of energy consumption in buildings and is mostly handled using systems based on the refrigeration cycle, an energy- and cost-intensive process. In this presentation, we will go over a simulation study where we investigated the potential of eliminating the refrigeration cycle from the primary cooling system design in various US climates including all 16 California climate zones. We created single zone EnergyPlus models that use a high thermal mass radiant system (HTMR) as the primary cooling system and meet the climate zones’ energy code requirements. We iteratively simulated each test case on its climate’s cooling design day to determine the highest supply water temperature (SWT) to the HTMR that maintains comfortable conditions in the zone. The results show that HTMR can use SWT of 17.5, 20.8, 23 °C (63.5, 69.4, 73.4 °F) for the 25th, 50th, and 75th percentile, respectively, of test cases on the cooling design day, indicating a great potential of using HTMR coupled with low -energy and -cost cooling devices like evaporative cooling towers or fluid coolers.

Carlos Duarte
Carlos Duarte is a postdoctoral scholar at the Center for the Built Environment (CBE) at UC Berkeley. His research interest includes radiant heating and cooling, occupant behavior impact on building energy consumption, and the development of tools that help various building stakeholders. He is currently working on a project aimed to standardize semantic descriptions of equipment, control points, and locations along their relationships to make it easier to extract actionable information from the wealth of data that buildings’ systems produce. He will also contribute to a project aimed to reduce natural gas consumption in commercial building heating systems.

Carlos received his PhD in Architecture from the BSTS program at UC Berkeley in Summer 2020. He received his BS and MS in Mechanical Engineering from the University of Idaho in 2011 and 2013, respectively. During his MS studies, he worked for the Integrated Design Lab in Boise, Idaho, on projects that ranged from measurement and verification, development of calibrated whole-building energy models from existing buildings, and residential and commercial field studies.

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