Energy recovery using a heat pump in heating and air conditioning systems.

In this paper, theoretic review of a heat pump use and operation is given. Further, the possibilities of a heat pump use in heating and air-conditioning is analysed, especially considering the tourist and catering facilities. The economic and environment protecting effects of a heat pump use as an energy source (conditionally speaking) in the air-conditioning process is pointed out. It is shown that these effect make a heat pump use justifiably attractive.

Standards for heating energy use in Russian buildings: a review and a report of recent progress.

A knowledge of Russian building thermal-energy codes in effect in the post-World War II era is necessary for estimating the performance of the existing building stock, quantifying the impact of energy conservation retrofits, and estimating the benefits of more stringent codes. This paper begins with a thorough review of the prescriptive-based national codes that applied to heated buildings constructed in the Soviet era. The codes defined all envelope thermal performance requirements for space heating.

Retrofitting halves school's heating bill.

The Jandel school in southern Sweden was thoroughly retrofitted in 1994-95. Both lighting and ventilation systems have been designed for high energy efficiency. New windows with excellent insulating performance have been installed. A before and after comparison shows that the energy required for heating has been reduced from about 210 k Wh/m2 to about 94 k Whlm2 a year, i.e. a reduction of about 55%. Electricity for building services systems has decreased by about 20%, despite the fact that considerably more computers are used in the school today than prior to rebuilding.

Condensing boilers in local authority family housing.


Condensing boilers in smaller homes.

This demonstration hosted by the Vale of White Horse District Council at Drayton, Oxfordshire, examined the type of building and occupancy pattern most likely to benefit from the installation of the current range of gas-fired condensing boilers. Specifically, the aims of the project were to examine the variations in space heating and domestic hot water load and the effect of building fabric insulation on these loads.