Maximization of exergy gain in high temperature solar thermal receivers by choice of pipe radius

Journal Article · Wed May 01 00:00:00 EDT 1991 · Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States)

DOI:https://doi.org/10.1115/1.2910566· OSTI ID:5359677

Bannister, P ^[1]

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1. Australian National Univ., Canberra (Australia)

The problem of optimizing the radius of boiler tubes in a radiation-dominated environment such as a solar thermal power receiver is examined. The trade-off between heat transfer and pumping power is investigated, resulting in an explicit expression for the radius that maximizes the net exergy gain under turbulent flow conditions. The effect of the pumping power being generated on site is included, thus making the result particularly applicable to the design of stand-alone power systems. Examples using typical design values for small parabolic dish solar thermal collectors using water and steam as the working fluid are given to illustrate the characteristics of the problem.

• OSTI ID: 5359677
• Journal Information: Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States), Vol. 113:2; ISSN 0022-1481
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
SOLAR RECEIVERS
DESIGN
EXERGY
BOILERS
HEAT EXCHANGERS
OPTIMIZATION
PARABOLIC DISH COLLECTORS
RANKINE CYCLE
THERMAL RADIATION
TUBES
TURBULENT FLOW
CONCENTRATING COLLECTORS
ELECTROMAGNETIC RADIATION
ENERGY
EQUIPMENT
FLUID FLOW
PARABOLIC COLLECTORS
RADIATIONS
SOLAR COLLECTORS
SOLAR EQUIPMENT
THERMODYNAMIC CYCLES
141000* - Solar Collectors & Concentrators