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Houses withous heating systems. Evaluation of the first winter

Twenty terrace houses without heating system has been built in Sweden. The houses are extremely well insulated and very airtight. They are also quipped with a high efficiency ventilation heat recovery system. The total electricity consumption and the air temperature in two positions has been monitored for each of the houses on an hourly bases. Further has the environmental conditions, i.e. outdoor temperature, wind, sun etc been monitored. In six of the houses separate measurements of electricity consumption for ventilation and hot water has also been performed.

Energy-efficient multistory apartment building in Moscow

The new perspective technology in building heat supply and climatisation, are given in this paper. The main energy-saving solutions are following: architectural and layout design taking into account the influence of solar radiation and wind direction; high thermal insulation of building envelope and glazing; mechanical supply-and-exhaust ventilation systems for each flat; Ground heat and exhaust air heat recovery for hot water supply; doublepipe heating system for each flat, horizontal, equipped with flat heat meters and thermostatic valves installed at each room heater.

Improved heat recovery & air conditioning heat pump - Application in a northern hospital

This paper presents the configuration and some experimental performance data for an improved, custom designed heat recovery & air conditioning retrofitting system, developed for a hospital located in a Canadian cold-climate environment. The two-stage heat recovery system includes a conventional glycol heat exchanger and a prototype of a reversible air-to-air heat pump between the exhaust and the fresh air streams.

Heating systems : energy savings and better comfort Heizen mit System : Energieeinsparung und Komfortgewinn

The article describes the advantages of heating designed as a system. It shows (among others) the features of balanced ventilation systems with heat recovery and compact ventilation appliances (heat recovery from ventilation exhaust air through a heat exchanger and a heat pump, to provide warm fresh air and domestic hot water).

Heat pumps in compact ventilation appliances for solar passive houses - Part 2 Kompressionswärmepumpen inLüftungs-Kompaktgeräten für Solar-Passivhäuser - Teil 2

Compact ventilation appliances appeared on the market for solar passive houses. They include a heat pump to transfer heat from ventilation exhaust air to fresh air and/or domestic hot water. This article is the second part of a serie of two. It continues to describe a model for simulating the operation and performance of such appliances which was developped to be used in the TRNSYS software environment. It compares the results of calculations with those of laboratory measurements.

Heating and domestic hot water in a low energy house - Part 2 - Heizung und Warmwasserbereitung im Niedrigenergiehaus

Dynamic simulation calculations were operated using TRNSYS software applied to a low energy house. This article is the second one of a serie of two. The first one was dealing with ventilation. This one mainly concerns heating system and domestic hot water production through a gas boiler. It also gives general conclusions, some of them dealing with ventilation.

Heat pumps in compact ventilation appliances for solar passive houses - Part 1 - Kompressionswärmepumpen inLüftungs-Kompaktgeräten für Solar-Passivhäuser - Teil 1

Compact ventilation appliances appeared on the market for solar passive houses. They include a heat pump to transfer heat from ventilation exhaust air to fresh air and/or domestic hot water. This article describes such systems and gives information about a model for simulating the operation and performance of such appliances which was developped to be used in the TRNSYS software environment.

Heating and domestic hot water in a low energy house - Part 1 - Heizung und Warmwasserbereitung im Niedrigenergiehaus

Dynamic simulation calculations were operated using TRNSYS software applied to a low energy house, fitted with a balanced mechanical ventilation system with heat recovery.

Heat recovery systems

Describes the two main systems used for ventilation heat recovery : static air-to-air plate heat exchangers, air to air rotary wheel heat exchangers. Indicates briefly their main characteristics.

Solar-Campus Juelich - Energy performance and indoor climate

The Solar-Campus Juelich consists of two buildings, as part of the University of Applied Sciences, Aachen, and student dormitories for 136 students (5 row houses), see Figure 1. In a general agreement, the overall energy demand for space heating of all buildings was limited to 40 kWh/m 2 a, which is less than 50% of the existing German national regulation (Wrmeschutzverordnung 1995). Extra costs were provided through the AG Solar of the German state North-Rhine-Westfalia.

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