heating

A low energy office building in Frankfurt (Germany) with water heating/cooling from ceilings was submitted to detailed measurements during two years, in the frame of a demonstration project. Results are given showing thermal comfort and energy consumption data.

In air-based systems, ducts deliver heat and cool air to conditioned spaces. Taking extra time to properly seal ducts during the installation along with repairing and patching leaks in HVAC duct systems will save cooling, heating and fan energy. With aerosol-sealing technology higher performance ducts in new and existing buildings potentially exist.

This report describes the characteristics of a thermodynamic concept, exergy, in association with building heating and cooling systems. It introduces the various forms of exergy and the mathematical formulations used to evaluate them. It gives an example of exergy calculation for space heating systems.

The brochure describes the main characteristics and advantages of low temperature heating systems. It presents 8 buildings with such systems, briefly describing the building and its equipment.

More than three quarters of all consumed energy in buildings are used for heating, ventilation and sanitary hot water preparation. Energy conservation on these areas has a great potential for reduction of fossil fuels consumption and could greatly contribute to environmental assessment. In striving for reduction of energy use in buildings new criteria are enforced as a measure for energy use in buildings.

Three flow regimes encountered in hybrid ventilation systems, depending on the external temperature along with the imposed heating and cooling loads, are investigated . A theoretical model is used and small-scale laboratory experiments are visualised. The transitions between those naturally ventilated flows may vary according the seasons.

The article presents the scope and content of ISO 13790 standard which is intended to calculate the energy use for space heating of buildings. Information is given about the accuracy of the standard calculation method.

Individual heating systems have become more and more common in Italy in recent years, as a result of the development of a methane gas network and of general housing renovation. The research proposed some field studies to analyse the indoor climate for improving the heating system and indoor climate. Aims to correct the management of the heating systems to improve housing quality and occupant comfort.

Defines the fundamentals of heating systems, including components, features, common system types, ventilation, indoor air quality and air filtration. Discusses the important features of design and installation that are most commonly overlooked. Aimed at the homeowner. Contents include: heating fundamentals; heating system types; features to consider when choosing a heating system; common system types described; overview of ventilation systems and how they relate to heating systems; filtration.