Subtask A: Ground Coupled Floor Slab Comparative Tests
Subtask Lead Country: United States
The objective of Project A is to assess the accuracy of building energy analysis tools that have incorporated detailed models for predicting ground-coupled heat transfer related to floor slab and basement constructions.
Subtask B: Multi-Zone and Airflow Comparative Tests
Subtask Lead Countries: Japan, United States
The objective of Project B is to specify a set of comparative test or analytical verification cases that investigate the comparability among simulation programs for modeling multi-zone configurations, including airflow test cases for both single-zone and multi-zone configurations.
Multi-Zone Building with Shading Element, Schematic Diagram
Combined Wind and Temperature Driven Airflow Test Case, Schematic Diagram
Subtask C: Shading/Daylighting/Load Interaction Empirical Tests
Subtask Lead Countries: Switzerland, United States
The objective of Project C is to collect empirical data for validating models of (1) thermal performance of windows, (2) illuminance calculations, (3) heating / cooling load of the room, (4) interaction between natural and electrical lighting and HVAC systems.
Left: EMPA Test Cells / Right: ERS Test Rooms
Subtask D: Mechanical Equipment and Controls Empirical Validation Tests
Subtask Lead Country: Germany
The objective of Project D is to specify a set of empirical validation test cases for chilled-water and hot-water hydronic components and systems, including tests for models of: chiller, boiler, hydronic network (piping, valves, etc.), the air/water heat exchanger (coil), and the entire system.
Selected Coil Control Strategies for the Test Cases
Subtask E: Double-Skin Building Empirical Validation Tests
Subtask Lead Country: Denmark
The objective of Project E is to assess suitability and awareness of building energy analysis tools for predicting heat transfer, ventilation flow rates, cavity air and surface temperatures, solar protection effect, and interaction with building services systems in buildings with double facade.
Left: Double-Skin Fašade Test Facility (Aalborg University) / Right: Double-Skin Fašade Schematics for Heating and Cooling Modes