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solar collector assemblies (SCA); generally, each 330-ft (100.6-m) row of collectorscomprises one SCA. The SCAs are mounted on pylons and interconnected withflexible hoses. An 80-MW field consists of 852 SCAs arranged in 142 loops. EachSCA has its own sun sensor, drive motor, and local c[r]

Loose sand 60–150 27.2–68.1 100 45.4Snow 25–50 9.1–22.7 — —Units are lb / 1,000 lb (kg / 454 kg) gross vehicle weight.formance curve for the proposed transmission must be available, usually from themanufacturer.The maximum tractive effort is limited by the pump relief-valve setting or wheelslip. For[r]

3. Compute the weight of the products of combustionFind the products of combustion by addition:Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright © 2006 The McGraw-Hill Companies. All rights reserved.Any use is su[r]

20.32Epicyclic Gear Train Speeds20.33Planetary-Gear-System Speed Ratio20.34ANALYZING GEARS FOR DYNAMIC LOADSA two-stage, step-up gearbox drives a compressor and has a lubrication pumpmounted on one of the gear shafts, Fig. 1. Tables 1, 2, and 3 show the spur-geardata, tolerances for tooth err[r]

With a capacity of W lb /h of water, the volume of a direct-contact or open-typeheater can be approximated fromv ϭW/10,000, wherev ϭheater internal volume,ft3. For this heaterv ϭ250,000/10,000ϭ25 ft3(0.71 m3).Related Calculations. Most direct-contact or open feedwater hea[r]

wells, Fig. 5. Note also that since K in different aquifers is not the same, the specificcapacities of wells in different aquifers are not always comparable.It is possible, with the use of the equation for Q above, to solve some problemsin gravity wells by measuring two or more rates