Thermoeconomics of seasonal latent heat storage system

Yaşar Demirel, H. Hüseyin Öztürk

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

A simple thermoeconomic analysis is performed for a seasonal latent heat storage system for heating a greenhouse. The system consists of three units that are a set of 18 packed-bed solar air heaters, a latent heat storage tank with 6000 kg of technical grade paraffin wax as phase-changing material, and a greenhouse of 180 m2. The cost rate balance for the output of a unit is used to estimate the specific cost of exergy for a yearly operation. Based on the cost rate of exergy, fixed capital investment, operating cost, and economic data, approximate cash-flow diagrams have been prepared. The systems feasibility depends on the cost rate of exergy, operating cost, internal interest rate, and rate of taxation strongly. A cash-flow diagram based on exergy considerations may enhance the impact of thermoeconomic analysis in feasibility studies of thermal systems.

Original languageEnglish (US)
Pages (from-to)1001-1012
Number of pages12
JournalInternational Journal of Energy Research
Volume30
Issue number12
DOIs
StatePublished - Oct 10 2006

Keywords

  • Discounted cash-flow diagram
  • Exergy analysis
  • Latent heat storage
  • Thermoeconomics

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

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