Nonimaging Fresnel Lenses Design and Performance of Solar Concentrators Your comments! And a list of errata

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This page is a collection of your comments (submit to ralfsun@yahoo.com), and a list of errata found in our book. Please do not hesitate to mail us with your comments and findings! Thank you.

Ralf Leutz, Akio Suzuki (2001)
Nonimaging Fresnel Lenses: Design and Performance of Solar Concentrators
Springer Verlag Heidelberg
ISBN 3-540-41841-5

The book can be ordered on the web using Springer Verlag's catalogue search at www.springer.de or using amazon.com.

Your comments

>>I read your book and forgot to get off at my station. I passed one stop and had to go back.<< L., Tokyo.
>>For sure, this 272-page, hardcover-bound, scientific book offers the reader interested in the field a high-quality and broad overview of this specialized subject of concentrating solar technology.<< From a review by V. Quaschning (Sonnenenergie (1):14, 2002; this is the official journal of the German section of the International Solar Energy Society ISES).

Errata

Science (our mistakes, omissions, and failures)

2.4 Nonimaging mirrors- p. 32, paragraph above (2.39) '...paraboloidal as primary and a nonimaging deviceas secondary...', where the device can be a CPC or a DTIRC (dielectric totally internally reflecting concentrator). For the latter, consider some additional references, besides [35, 65, 182]:
X. Ning; R. Winston; J. O'Gallagher. Dielectric totally internally reflecting concentrators. Applied Optics 26(2):300-305.
J.A. Soules; D.R. Buchele; C.H. Castle; R.P. Macosko. Design and fabrication of a dielectric total internal reflecting solar concentrator and associated flux extractor for extreme high temperature (2500 K) applications. NASA contract report 204145 prepared under contract NAS3-27600; National Aeronautics and Space Administration (NASA), Lewis Research Center; November 1997. ftp://ftp-letrs.lerc.nasa.gov/LeTRS/reports/1997/CR-204145.pdf. Note that there is a mistake in the equation in Fig. 8: use W_1 = h tan(Delta) instead.
H. Ries; A. Segal; J. Karin. Extracting concentrated light guide. Applied Optics 36(13):2869-2874.
4.2 Recent developments- p. 59, Table 4.1, and p. 64, Table 4.3: The given reference [172] Terao et al. (2000) may lead to the impression that their lens was the first utilizing total internal reflection (TIR) prisms, although we also mention the lens of Grilikhes et al. (1996) [50], p. 63, Table 4.2, which originally had a TIR section, before manufacturability problems caused it to be designed fully imaging. We were made aware of early developments as represented by the following references, the first of which deals with a TIR lens concentrator:
W.A. Parkyn, Jr.; D.G. Pelka; J.M. Popovich. Faceted totally internally reflecting lens with individually curved faces on facets. United States Patent 5,404,869. Filed 1992. The next reference deals with the implementation of a secondary under the TIR lens for flux redistribution (also found in [172]):
W.A. Parkyn, Jr.; D.G. Pelka. Auxiliary lens to modify the output flux distribution of a TIR lens. United States Patent 5,577,493. Filed 1994.
An important related reference is:
A. Rabl. Prisms with total internal reflection as solar reflectors. Solar Energy19:555-565, 1977.
4.4 Domed or Arched Fresnel Lenses- Fig. 4.9, the angles alpha and beta are mixed up (thanks to Mr Chen for finding out).
5.2 The optimum linear lens- p. 85, Eqn. (5.12). Correct to b = Delta beta_1 - a * alpha_1. Otherwise Newton's method will not work.
11.2 Design challenges in space- p. 255, under the list: About possible problems of charging and short-circuiting in high-powered satellites we refer to Boeing's HS 702 (Galaxy XI) writing '...has been operating flawlessly.' This seems to be no longer the case, as a problem with the satellites (there are six of them in GEO) emerged in September 2001. Sad quote:
'Boeing Satellite Systems spokesman George Torres said Boeing has isolated the problem to the reflectors attached to its satellites' solar arrays and will remove those reflectors from all future 702 satellites.'
(http://www.space.com/spacenews/satellitecomm/power_092701.html)
 

Style (often Latex things)

- preface, 2nd paragraph: in exactly, do not use \/ for spacing;
- p. 14, Table 1.4: 29 546 (\,);
- p. 27, (2.31): no preceeding empty line;
- p. 30, (2.35): no preceeding empty line;
- p. 119, Table 6.2: 13 131.56 (\,);
- p. 239, 2nd paragraph: exergy sink. Exergy
- p. 249, 3rd paragraph: Fig. 11.2a-c.