Earth Notes: General Bibliography (woods2019HVAC)

• [woods2019HVAC] Woods, Jason and Bonnema, Eric, year=2019 Regression-based approach to modeling emerging HVAC technologies in EnergyPlus: A case study using a Vuilleumier-cycle heat pump (accessed 2025-01-20), Elsevier BV, Energy and Buildings, volume 186, ISSN 0378-7788, doi:10.1016/j.enbuild.2019.01.008, article/pages 195–207 (article) (BibTeX).
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  [[**CS1] Quote: "The purpose of this paper is (1) to describe a regression approach for simulating emerging technologies in EnergyPlus without changing the EnergyPlus source code ..." Quote: "The Vuilleumier system model was built in the Engineering Equation Solver (EES) framework, v10.231. This software is a convenient platform for modeling HVAC systems, with its built-in Newton-Raphson iterative solver, and fluid properties for water, air, and refrigerants." Quote: "We modeled the Vuilleumier-cycle system in EnergyPlus using the EMS user-defined coil object, which provides a template for creating custom heat exchange coils. The routine was written in the EnergyPlus runtime language (ERL), which EnergyPlus interprets and executes during the simulation. The ERL language was formulated using the operations manual for common commercial building automation systems, including the use of sensors that read internal EnergyPlus values from the current timestep, and actuators that set EnergyPlus values during that timestep." Quote: "We confirmed that the user-defined coil object in EnergyPlus can be used with regression equations or lookup tables to model non-traditional HVAC cycles, including a technology with mixed fuel use (gas and electricity). This approach is flexible and can be used when a new HVAC technology's performance can be estimated through laboratory data or a fundamental model. The approach is an alternative to co-simulation, or adding the detailed equations in the EnergyPlus source code, which is time consuming and requires an expert EnergyPlus user."]