John twidell (95 resultados)

Paperback. Condición: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condición: Fair. 2. The item might be beaten up but readable. May contain markings or highlighting, as well as stains, bent corners, or any other major defect, but the text is not obscured in any way.

Paperback. Condición: Very Good. Retaining the successful format of the first edition and building on its solid grounding in the principles of renewable energy resources, this second edition has been revised in line with the latest advances in the field to include new technologies and an assessment of their impact. Considering each technology in depth from both scientific and environmental perspectives, it covers solar energy, photovoltaic, wind, wave, tidal and hydro power, biofuels, geothermals and more, as well as featuring a new chapter on institutional factors, including economics. In addition, extra worked problems and case studies are also provided to help readers put theory into practice. Reading and web-based material for further study is indicated after each chapter, making this text ideal, not only for practitioners, but also for students on multi-disciplinary masters degrees in science and engineering as well specialist modules in science and engineering first degrees. The book has been read, but is in excellent condition. Pages are intact and not marred by notes or highlighting. The spine remains undamaged.…

paperback. Condición: Good. Connecting readers with great books since 1972! Used textbooks may not include companion materials such as access codes, etc. May have some wear or writing/highlighting. We ship orders daily and Customer Service is our top priority.

Condición: Very Good. 2nd Edition. Former library copy. Pages intact with possible writing/highlighting. Binding strong with minor wear. Dust jackets/supplements may not be included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good. …

Condición: Good. 2nd Edition. Former library copy. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.…

Paperback. Condición: Fair. Book in Fair condition.

Paperback. Condición: Good. Book in Good condition.

Condición: Good. Former library copy. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

Condición: Acceptable. Used - Acceptable. Ex-library with wear - may contain significant amounts of highlighting and underlining in pen or pencil. Your purchase helps support Sri Lankan Children's Charity 'The Rainbow Centre'. Our donations to The Rainbow Centre have helped provide an education and a safe haven to hundreds of children who live in appalling conditions.…

Condición: Fair. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In fair condition, suitable as a study copy. Re-bound by library. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,800grams, ISBN:0419120106.…

Condición: Poor. This is an ex-library book and may have the usual library/used-book markings inside.This book has soft covers. Book contains pen markings. In poor condition, suitable as a reading copy. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,700grams, ISBN:9780419120100.…

Condición: Fair. This is an ex-library book and may have the usual library/used-book markings inside.This book has soft covers. In fair condition, suitable as a study copy. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,750grams, ISBN:9780419120100. …

Softcover. Condición: Fine. Leichte Kratzer / Abnutzungen / Druckstellen; Leichte Verformung / umgeknickte Seiten; Einriss bis 1 cm. "This second edition maintains the book's basis on fundamentals, whilst including experience gained from the rapid growth of renewable energy technologies as secure national resources and for climate change mitigation, more extensively illustrated with case studies and worked problems. The presentation has been improved throughout, along with a new chapter on economics and institutional factors. Each chapter begins with fundamental theory from a scientific perspective, then considers applied engineering examples and developments, and includes a set of problems and solutions and a bibliography of printed and web-based material for further study. Common symbols and cross referencing apply throughout, essential data are tabulated in appendices. Sections on social and environmental aspects have been added to each technology chapter." -- back cover.…

Hardback. Condición: Good. This enterprising book was intended as a practical guide to wind-energy generators up to 100 kW rated capacity. Very small machines such as battery chargers are included, though the main emphasis is on the 20 kW to 100 kW range. Wind-energy conversion systems are being purchased in increasing numbers in the UK. At the time of publication, they were used mainly in remote and island installations (especially on farms) to reduce dependence on conventional fuels such as oil and bottled gas. But the book was not just a practical handbook for those who already had a machine; it supplied sufficient information to allow potential purchasers to decide whether the installation of such a generator would be cost-effective in their own particular circumstances.…

hardcover. Condición: Very Good. 1987 Cambridge University Press. Pages are all clean tight and bright no marks and appears unread. Cover is clean with light shelf rub at top edge of front cover.

Hardback. Condición: Good. This enterprising book was intended as a practical guide to wind-energy generators up to 100 kW rated capacity. Very small machines such as battery chargers are included, though the main emphasis is on the 20 kW to 100 kW range. Wind-energy conversion systems are being purchased in increasing numbers in the UK. At the time of publication, they were used mainly in remote and island installations (especially on farms) to reduce dependence on conventional fuels such as oil and bottled gas. But the book was not just a practical handbook for those who already had a machine; it supplied sufficient information to allow potential purchasers to decide whether the installation of such a generator would be cost-effective in their own particular circumstances.…

Softcover. Condition: very good (cover creases). ISBN 0419120106.

Condición: Used - Good. Good hardback. 1st edition. Name on front board, & label on front free end paper; some fading to spine & board edges Used - Good. Good hardback.

Condición: good. A copy that has been read, remains in good condition. All pages are intact, and the cover is intact. The spine and cover show signs of wear. Pages can include notes and highlighting and show signs of wear, and the copy can include "From the library of" labels or previous owner inscriptions. 100% GUARANTEE! Shipped with delivery confirmation, if you're not satisfied with purchase please return item! Ships via media mail.…

Hardcover. Condición: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

Soft cover. Condición: Very Good. 1st Edition. pp.xx, 439 pages, numerous figures and tables in the text, paperback, a VG copy [0419120009].

Paperback. Condición: Very Good. FIRST THUS. First Edition Thus, First Printing. Not price-clipped. Published by E. & F.N. Spon, 1986. Octavo. Paperback. Book is very good with slight toning to top page ends, smudges, and shelf/edge wear. 100% positive feedback. 30 day money back guarantee. NEXT DAY SHIPPING! Excellent customer service. Please email with any questions. All books packed carefully and ship with free delivery confirmation/tracking. All books come with free bookmarks. Ships from Sag Harbor, New York.…

Condición: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has soft covers. In good all round condition. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,1850grams, ISBN:9780415584388.

Condición: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has soft covers. In good all round condition. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,1000grams, ISBN:9780415584388.

tapa blanda. Condición: 2ª Mano - Bueno. 2ª Mano. Tylor & Francis. 2005. Segunda edición. Idioma inglés. Ilustrado con forografias y gráficos en b/n. Lomo marcado por la lectura. Libro.

Paperback. Condición: New. Book in New condition.

Hardback. Condición: Very Good. 1st Edition. xii / 346 pp office stamp in front otherwise clean and sound with minor wear, no dust wrapper - POSTED FROM UK WITHIN 48 HOURS.

Condición: New.

Paperback. Condición: New. This enterprising book was intended as a practical guide to wind-energy generators up to 100 kW rated capacity. Very small machines such as battery chargers are included, though the main emphasis is on the 20 kW to 100 kW range. Wind-energy conversion systems are being purchased in increasing numbers in the UK. At the time of publication, they were used mainly in remote and island installations (especially on farms) to reduce dependence on conventional fuels such as oil and bottled gas. But the book was not just a practical handbook for those who already had a machine; it supplied sufficient information to allow potential purchasers to decide whether the installation of such a generator would be cost-effective in their own particular circumstances.…