Chauffage connaissances

Jun. 27, 2007 – Based on the coabsorbent cycles, recently introduced by the author, a particular new technology can be developed for extremely efficient and feasible heat pumping applications. The paper presents model results of residential and district ammonia/water heating applications for coabsorbent hybrid and absorption heat pumps, supplied by different winter and summer heating [...]

Jun. 27, 2007 – Conventional thermally powered water heaters are 80 to 95% efficient. The new thermally powered heat pump (TPHP) reported herein is over 140% efficient. In addition, the cold end of this TPHP produces useful chilling. The amount of energy-free chilling is equal to the amount of heat pumping. The combination of the [...]

Jun. 27, 2007 – Canada Canadian sawmills traditionally deliver 72 million m3 of resinous lumber per year. About 2% are dried using low-temperature heat pumps and the rest through other technologies using bark-, natural gas- or oil-fired boilers as primary energy sources. However, such products are well suited to high-temperature drying. Two hybrid (electricity/fossil) industrial-scale [...]

Jul. 03, 2007 – Norway The use of naturally occurring and ecologically safe substances as working fluids in heat pumps represents an environmental friendly and long-term solution to the problems of HFCs. The most important natural working fluids include ammonia, hydrocarbons and carbon dioxide. This article discusses the main characteristics of ammonia heat pumps, and [...]

Sep. 06, 2007 – Austria – The association of Austrian Electricity Companies has funded a project with the aim of developing, testing and evaluating a standardised monitoring methodology for heat pump systems. The results should provide a base for heat pump manufacturers, installers, energy providers, stakeholders and funding agencies. In view of political aspirations particularly [...]

Oct. 10, 2007 – Netherlands – Energy Research SubsidyAs the Netherlands Government shifts its research strategy focus to the long term, it has identified the built environment as one of five energy research priority areas, now presented as formal energy research programmes. Long Term Research Programme: Built EnvironmentThe built environment research area covers both new [...]

Nov. 26, 2007 – Given the critical importance of energy and cost savings, the application of engineering and management principles has the potential to reshape the design of modern heat pump systems. Microchannel heat exchangers, ejectors, and injection-compressors are some of the latest more interesting developments in heat pump components that boost up the energy [...]

Jan. 18, 2007 – The Norwegian Commission on Low Emissions points to heat pumps as one of the technologies that could help cut Norwegian greenhouse gas emissions by 50-80 percent by 2050. The Norwegian Commission on Low Emissions was appointed by the Norwegian government on March 11, 2005. The Commission has been charged with the [...]