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2010 | 19 | 3 |

Tytuł artykułu

Micro heat and power plants working in organic rankine cycle

Autorzy

Języki publikacji

EN

Abstrakty

EN
Renewable heat sources are rarely suited to the temperature requirements of modern thermal power plants. Thus, our unique opportunity is to deliver to the market power plants optimized for these unused and overlooked thermal resources utilizing Organic Rankine Cycle (ORC). The ORC is similar to the cycle of a conventional steam turbine, except for the fluid that drives the turbine – a high molecular mass organic fluid, usually Freon or another low-boiling fluid. This paper analyzes micro combined heat and power plants (micro CHP) operating on ORC, which aims to replace conventional boilers in homes. The heat power of micro CHP is in the range of from ten to a hundred kilowatts, and electric power in the range of from a few to tens of kilowatts. Analysis concerns selection of a cycle, calculation of thermodynamic parameters, and determination of basic dimensions of heat exchangers: condenser and evaporator.

Wydawca

-

Rocznik

Tom

19

Numer

3

Opis fizyczny

p.499-505,fig.,ref.

Twórcy

  • Institute of Fluid Flow Machinery, Polish Academy of Sciences, Fiszera 14, 80-231 Gdansk, Poland

Bibliografia

  • 1. HARRISON J. EA Technology, presentation “Micro CHP in Europe”, National Micro-CHP Technology Pathways Workshop. The Greenbelt Mariott, Maryland, June 11-12, 2003.
  • 2. MAIZZA V., MAIZZA A. Unconventional working fluids in organic Rankine-cycles for waste energy recovery systems, Applied Thermal Engineering, 21, 381, 2001.
  • 3. SALEH B., KOGLBAUER G., WENDLAND M., FISCHER J. Working fluids for low-temperature organic Rankine cycles, Energy, 32, 1210, 2007.
  • 4. MIKIELEWICZ J., BYKUĆ S., MIKIELEWICZ D. Algorithm and a code for thermodynamical calculations of micro CHP for different working fluids, IFFM internal report, 2007.
  • 5. MIKIELEWICZ J., BYKUĆ S., MIKIELEWICZ D. Application of renewable energy sources to drive Organic Rankine Cycle micro CHP, Proc. of Heat Transfer and Renewable Sources of Energy, Międzyzdroje, pp. 329-336, 2006.
  • 6. Refprop 8.0, NIST, 2007.
  • 7. LOCKHART R.W., MARTINELLI R.C. Proposed correlation of data for isothermal two-phase two-component flow in pipes, Chemical Eng. Progress, 45, 39, 1949.
  • 8. CHISHOLM D. Pressure gradients due to friction during the flow of evaporating two-phase mixtures in smooth tubes and channels, Int. J., Heat Mass Transfer, 16, 347, 1973.
  • 9. FRIEDEL L. Improved friction pressure drop correlations for horizontal and vertical two-phase pipe flow, European Two- Phase Flow Group Meeting, Paper E2, Ispra, Italy, 1979.
  • 10. MIKIELEWICZ D., MIKIELEWICZ J., TESMAR J. Improved semi-empirical method for determination of heat transfer coefficient in flow boiling in conventional and small diameter tubes, Int. Journal of Heat and Mass Transfer, 50, 3949, 2007.

Identyfikator YADDA

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