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J. Renewable Sustainable Energy 1, 043101 (2009); doi:10.1063/1.3166862 (7 pages)

Optimum sizing of air heating collectors

M. Söylemez

Department of Mechanical Engineering, University of Gaziantep, 27310 Gaziantep, Turkey Map This map

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A thermoeconomic feasibility analysis is presented yielding a simple algebraic optimization formula for estimating the optimum length of a typical air heating collector per unit depth. A simple economic optimization method is used in the present study by combining it with an integrated overall heat balance method for calculating maximum savings from the solar air heating. An optimum collector length was detected as a result of the present work. The number of payback years and critical length of an air heating collector were also determined by using the present optimization method.

© 2009 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. MATHEMATICAL FORMULATION
  3. RESULTS AND DISCUSSION
  4. SUMMARY
  5. NOMENCLATURE

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KEYWORDS and PACS

Keywords

heat transfer, life cycle costing, solar absorber-convertors, solar heating

PACS

  • 89.65.Gh

    Economics; econophysics, financial markets, business and management

  • 88.40.fc

    Modeling and analysis

  • 88.40.me

    Solar heating and cooling systems

  • 88.05.Lg

    Economic issues; sustainability; cost trends

ARTICLE DATA

History
Received 24 September 2008
Accepted 9 June 2009
Published 1 July 2009
Permalink
http://link.aip.org/link/JRSEBH/v1/i4/p043101/s1

PUBLICATION DATA

ISSN:

19417012 (print)  
19417012 (online)

Publisher:

$abstract.society.value is a Member of CrossRef American Institute of Physics

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  8. J. A. Duffie and W. A. Beckman, Solar Engineering of Thermal Processes (Wiley, New York, 1980).
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Figures (4) Tables (2)

Figures (click on thumbnails to view enlargements)

FIG. 1
Schematics of air heating collector.
FIG. 1 View Enlargement | Download High Resolution Image (.zip file)
FIG. 2
Schematics of an infinitesimal collector element.
FIG. 2 View Enlargement | Download High Resolution Image (.zip file)
FIG. 3
Net savings vs various collector length values.
FIG. 3 View Enlargement | Download High Resolution Image (.zip file)
FIG. 4
Optimum collector length vs various air mass flow rate values.
FIG. 4 View Enlargement | Download High Resolution Image (.zip file)

Tables

Table I. Net life cycle savings vs various collector lengths.
Table II. Optimum length of collector vs various mass flow rates of air collectors.

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