Wolf Gereon WEDEL, Annelies VANDERSİCKEL, Hartmut SPLİETHOFF

7580

Benchmarking and Potential of Heat Pumps for Flue Gas Condensation

The use of environmental or waste heat with heat pumps, open absorption cycles or sorption heat pumps is an option for low carbon or high efficiency heat supply for industrial use. For one of the mentioned technologies to experience wide spread use it must offer economic advantages compared to other technologies. The evaluation of the economic viability is strongly dependent on boundary conditions.This work presents a method for the comparison of available technologies with regard to economics and potential for exhaust heat use. Calculations comparing the effects of different exhaust gas compositions resulting from technology specific air ratios for combustion in combination with different return and process heat temperatures are performed in order to quantify the potential of condensing technology. The herein developed specific annuity difference method allows evaluating the impact of improving technology specific parameters, such as temperature spread and coefficient of performance (COP), enabling to identify future research needs and to benchmark the technologies with e.g. a gas heater. The risk posed by uncertain future developments, such as gas price development and increasing prices for carbon emissions, possible taxation of these and emission trading, influences the economic evaluation and can motivate investment in active condensing technology, even if economic viability under current circumstances is not given.
Keywords:

condensing technology energy efficiency, heat pump, waste heat,

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International Journal of Thermodynamics-Cover
  • ISSN: 1301-9724
  • Yayın Aralığı: 1
  • Başlangıç: 1998
  • Yayıncı: -
Arşiv
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