The usage of low potential sources of heat for production of electricity and hot water
- Key words
- Low potential sources of heat, heat pumps, binary energy systems
- Conference
- International Geothermal Workshop, Russia
- Year
- 2003
- Session
- Technical and economical parameters of geothermal heat and p
- Language
- English
- Paper number
- W00021
Full text
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Abstract
By low potential heat (LPT) is meant different sources of temperature from 0 up to 160 C. This could be fresh or seawater, the drains of purifying systems, geothermal sources, the steam and exhausted gases of heat engines, and waste heat from cooling systems etc. This report considers the possibility of utilizing LPT for electrical energy production (binary energy system BES) and hot water for heating (heat pumps HP) by making use of industrial cooling equipment. This will allow the design and supply of new engines to a customer over a period of 12-24 months. BES uses low boiling liquids as a working agent, thereby enabling the creation of systems using temperatures from 80 to 160 C. The change of the apportioned effectiveness of systems according to the different external conditions of an individually designed BES are analyzed in this report. The effectiveness of a heat pump for the utilization of hot water depends on many factors that should be taken into consideration while the pump is being designed. Apart from construction considerations, these include the area taken up by its installation, the heating equipment, the quality of LPT, and also regional prices for fuel and electrical energy. In order to receive more efficiency, the approach as regards the design of a heat pump should be strictly individual as regards the conditions of each case in hand. Some examples of the efficient usage of heat pumps in different industries are considered in this report. In choosing BES and HP, the analysis of the choice of working agent was done according to the temperature and power of the heating source as well as the conditions of the cooling condensers.
Abstract file
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