AIVC Workshop: Ventilation for Indoor Air Quality and Cooling (Programme)

 

The programme of the AIVC Workshop: Ventilation for Indoor Air Quality and Cooling held in Sydney, Australia, on 23 March 2018.

AIVC Workshop: Ventilation for Indoor Air Quality and Cooling (Sessions 1 & 2)

Slides of the morning sessions at the AIVC Workshop: Ventilation for Indoor Air Quality and Cooling held in Sydney, Australia, on 23 March 2018:

  • Session 1: Ventilation for indoor air quality
  • Session 2: Ventilation for indoor air quality and health

 

AIVC Workshop: Ventilation for Indoor Air Quality and Cooling (Sessions 3 & 4)

Slides of the afternoon sessions at the AIVC Workshop: Ventilation for Indoor Air Quality and Cooling held in Sydney, Australia, on 23 March 2018:

  • Session 3: Ventilation for cooling
  • Session 4: Global performance of buildings and the role of ventilation

Influence of solar radiation data processing on building simulation results

A new set of climatic data for different kinds of calculations has been compiled for various Swiss localities. This includes the generation of new design reference year data sets with hourly values for e.g. building simulations. The procedure conforms to a set of new European standards describing the algorithms. One key element in this is the processing of solar radiation information, especially for the separation into direct and diffuse components. The most advanced methodology was used.

New EPBD related European standards and their relation to building and HVAC system simulation

In reaction to the European Energy Performance of Buildings Directive (EPBD), existing and newly lanced standard developments by CEN (European Committee for Standardization) were harmonized and synchronized, resulting in a set of about 50 standards addressing different aspects of the EPBD and the implementation of an overall building energy performance calculation method. A few of them address simulation issues: An overview of these is given, focusing on one standard covering system related aspects for buildings with cooling, humidification or dehumidification.

Hydronic radiant floor for heating and cooling coupled with an underground heat exchanger: Modeling approach and results

This paper explores the simulation of the thermal performance of a radiant floor for heating and cooling that is connected with an underground heat exchanger installed under the concrete floor of a house. In the heating season, an electric boiler is used to maintain the operative temperature at the set point value by varying the supply water temperature to the radiant slab. In the cooling season, the water from the radiant floor is circulated through an underground heat exchanger installed under the concrete slab.

Improving the Microclimate in a Dense Urban Area Using Experimental and Theoretical Techniques – The Case of Marousi, Athens

An urban heat island results in higher urban temperatures than the surrounding area and is considered as the most documented phenomenon of climate change. This increase in urban temperature has a serious impact on the energy consumption for cooling and also contributes to higher urban pollution levels. Athens suffers from high summer temperatures that affect the quality of life of citizens. In response to the problem, a major rehabilitation plan was designed and applied, based on the use of advanced mitigation techniques.

Estimation of Cooling Energy Reduction by Utilizing Cross-Ventilation in Detached Houses, within the Japanese newly introduced Energy Regulation - Evaluating Energy Consumption for Different Uses

The reduction of carbon dioxide emission due to energy consumption in the household sector is an urgent task, worldwide. As a measure to respond to the task, a new regulation has just been enforced since April 2009, in Japan. This regulation evaluates the energy performance of detached houses by estimating the primary energy consumption for different uses, namely, heating, cooling, ventilation, domestic hot water and lighting.

NEW EPBD RELATED EUROPEAN STANDARDS AND THEIR RELATION TO BUILDING AND HVAC SYSTEM SIMULATION

In reaction to the European Energy Performance of Buildings Directive (EPBD), existing and newlylanced standard developments by CEN (European Committee for Standardization) were harmonizedand synchronized, resulting in a set of about 50 standards addressing different aspects of the EPBDand the implementation of an overall building energy performance calculation method. A few of themaddress simulation issues:An overview of these is given, focusing on one standard covering system related aspects for buildingswith cooling, humidification or dehumidification.

SIMULATION OF A NOVEL HEAT PIPE/PCM SYSTEM FOR COOLING OF NATURALLY VENTILATED BUILDINGS

The paper describes the numerical simulation of a novel ventilation cooling system. The ultimate aimof the mathematical model is to facilitate the design of the system for specific buildings and climates.The model directly takes account of time dependency in that the diffusion equation for the heat flow inthe fabric of the room is solved. This approach means that important parameters (e.g. ventilationrates and internal heat gains) can be arbitrarily specified as functions of time.

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