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Book Photovoltaic Solar Panel Resistance to Simulated Hail Low Cost Solar Array Project

Download or read book Photovoltaic Solar Panel Resistance to Simulated Hail Low Cost Solar Array Project written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: As part of the Jet Propulsion Laboratory's Low-Cost Solar Array Project, test methods have been evaluated and procedures developed for testing photovoltaic flat-plate solar cell modules for resistance to impact by hailstones. Testing has included the use of simulated hailstones (frozen ice spheres projected at terminal velocity), steel balls, and other projectile types applied with three loading methods: pneumatic gun, gravity drop, and static loading. Results are presented that compare the advantages and disadvantages of the three test methods. Dropped-steel-ball tests are shown to exhibit little correlation with high-velocity ice-ball tests, whereas statically-loaded steel balls show a somewhat better correlation with ice-ball tests. Results are also presented on the hail impact strength of 16 flat-plate photovoltaic modules. The module designs tested have been shown to be capable of withstanding as large as 1-1/2-inch diameter and not capable of withstanding as small as 1/2-inch diameter simulated hail. The top surface material of the modules has a dominant influence on the hail impact resistance of the modules. In order of increasing impact strength for a given thickness, the top surface materials encountered in the modules tester were: clear silicone rubber, annealed glass, tempered glass, and acrylic sheet. The critical failure mechanism of each module type is explored and means for improving the hail resistance of future modules are described.

Book Photovoltaic solar panel resistance to simulated hail

Download or read book Photovoltaic solar panel resistance to simulated hail written by Donald Max Moore and published by . This book was released on 1978 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Photovoltaic Solar Panel Resistance to Stimulated Hail Low Cost Solar Array Project 5101 62 October 15 1978

Download or read book Photovoltaic Solar Panel Resistance to Stimulated Hail Low Cost Solar Array Project 5101 62 October 15 1978 written by United States. Department of Energy and published by . This book was released on 1978 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Photovoltaic Solar Panel Resistance to Simulated Hail

Download or read book Photovoltaic Solar Panel Resistance to Simulated Hail written by Donald Max Moore and published by . This book was released on 1978 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Solar Energy Update

Download or read book Solar Energy Update written by and published by . This book was released on 1979-10 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Energy Research Abstracts

Download or read book Energy Research Abstracts written by and published by . This book was released on 1980 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Monthly Catalog of United States Government Publications

Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1979 with total page 1250 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index

Book Monthly Catalogue United States Public Documents

Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1979 with total page 1256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Best Practices for Commercial Roof Mounted Photovoltaic System Installation

Download or read book Best Practices for Commercial Roof Mounted Photovoltaic System Installation written by Rosalie Wills and published by Springer. This book was released on 2015-05-22 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: This SpringerBrief presents information on a wide variety of hazards and the damage potential caused by installation of a photovoltaic (PV) system. The current installation practices for PV systems on roofs create electrical, fire, structural, and weather-related hazards that do not comply to current codes, standards and guidance documents. Potential dangers include structural loading, wind loads, hail, snow, debris accumulation, seismic hazards, firefighting hazards, and electrical hazards. Despite the increased popularity of PV systems after the environmental movement, research shows that the costs of installing PV systems outweigh the benefits. Hazards of PV systems on roofs have caused several incidents in the United States; the most notable in Bakersfield, California, and Mount Holly, North Carolina. Designed for fire engineers and professionals, Best Practices for Commercial Roof-Mounted Photovoltaic System Installation offers recommendations to set up PV systems safely and sustainably.

Book Fourth E C Photovoltaic Solar Energy Conference

Download or read book Fourth E C Photovoltaic Solar Energy Conference written by W.H. Bloss and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper is written in the belief that people are important and that equipment is to serve the needs of the people and therefore should be designed to meet their specific needs and environment. This is particularly important in the case of a developing country when a professional engineer accepts the responsibility to formulate policies evaluate equipment imple ment projects and train national people. 1. Government, geography and climate Papua New Guinea, an independent and self governing state since 1975, is located directly North of Australia above the North Eastern State of Queensland. The country extends from 141° east longitude, at the border with Indonesia (Irian Jaya) to 160° east longitude and between latitudes 1° and 12° south (see figure 1). Papua New Guinea is a parliamentary democracy, with a single legis lature known as the National Parliament (1). The State is divided into 19 provinces plus the National Capital District (Port Moresby) with de centralized Government established in each province. Before independence the country comprised the Australian territory of Papua in the southern regions and the United Nations Trust Territory of New Guinea in the North (1). Land area is 462,840 square kilometres This inclUdes the mainland, the three large islands of New Britain, ~ew Ireland and fiougainville plus 600 small islands and archipelagos. Approximate direct distances from the capital city of Port Moresby to some of the other centres are : Vanimo 990 km, Rabaul SOO km, Arawa 990 km and Lorengau S25 km.

Book Annual Book of ASTM Standards

Download or read book Annual Book of ASTM Standards written by ASTM International and published by . This book was released on 2004 with total page 1268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Government Reports Announcements Index

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1995 with total page 1108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Annual Book of ASTM Standards

Download or read book Annual Book of ASTM Standards written by American Society for Testing and Materials and published by . This book was released on 1986 with total page 1074 pages. Available in PDF, EPUB and Kindle. Book excerpt: