Rigorous approach to industrial sustainability under markets uncertainty.Assessment of economic and environmental sustainability by an innovative method.The MOO of a cumene plant allows discussing various optimal solutions in terms of economic and environmental concerns/criteria. The optimal solutions of the economic and environmental assessment lay on the Pareto line produced by the multi-objective-optimization (MOO) problem. The benefit of PCD consists in accounting for market uncertainty and prices/costs volatility of OPEX terms. The environmental assessment is based on the waste reduction algorithm and on the evaluation of the potential environmental impact. PCD accounts for both CAPEX and OPEX terms, which on their turn depend on dynamic econometric models of commodities and utilities. The methodology implemented for the economic assessment is the predictive conceptual design (PCD) that uses as indicator the cumulated dynamic economic potential over a long-term horizon. Specifically, we focus on the economic and environmental sustainability. The paper presents a methodology for the quantitative assessment of sustainability applied to the design of chemical plants. MSRP $750.PSE-Lab has just published a new paper on “Computers and Chemical Engineering” titled: A systematic approach to the optimal design of chemical plants with waste reduction and market uncertainty Piernico Sepiacci, Valentina Depetri, Davide Manca There are holes on the others for mounting a kickstand, but they didn’t have them included. These pictures don’t do this blue color justice…it’s a beautiful cornflower/baby blue in person. It uses the same big handlebar as the 02, and it adds a kickstand. The top-of-the-line Daily 01 gets an 8-speed internally geared hub with full chainguard and fenders. For most people, they’re probably adequate, though. The brakes are a little weak, but they are traditional road calipers, so you could put stronger brakes or better pads if you get serious about whipping around town at speed. The steering is quick thanks to a very upright, steep headtube, and it was fun. Like all the other Globe bikes, the headbadge is empty and lets you put your own artwork in there. I rode an XL Daily 02 about six miles over rolling bike paths and it was pretty sweet. Could have just been loose, but we’d still like to see the wood offered, at least as an option. Their product manager says they did it for eco reasons, but on a couple we rode there was a bit of rattling on one of them. Actually, for 2011, all Globe models are moving to aluminum trays to replace the better looking wood ones (our opinion). The handlebars are a bit bigger and taller, it keeps the full fenders, but uses a small rear rack with aluminum tray. The Daily 02 uses a traditional rear derailleur with a cuff protector chainring, and it upgrades to metal pedals. On the flats, though, it seemed to be just right. For hilly terrain, the gearing was a little steep for the climbs and a little quick for the descents…which is typically the case with singlespeed bikes. My friend Joseph rode this one and really enjoyed it. I didn’t ask to confirm, but there are threads on the other side of the hub, so you can likely run it as a fixed gear, too.Ĭheck out the rest after the break, along with a little ride report of two of the models… Shown above, the singlespeed Daily 03 men’s bike gets full fenders, a large front basket and a full length chainguard. All of them have full alloy frames with internal rear brake cable housing, with the upper models getting alloy forks (the lower end Daily 03 gets a steel fork). Specialized’s Globe brand of city and commuter bikes introduced their new 5-bike series of upright cruisers called Daily.Īvailable in three men’s and two women’s models, their trim levels are primarily differentiated by the drivetrain, but each has unique cargo methods, too.
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