Affiliation:
1. TPG-DiMSET, Universita` di Genova, Genova, Italy
Abstract
Microturbines have a less complex mechanical design than large-size gas turbines that should make it possible to fit them with a more straightforward control system. However, these systems have very low shaft mechanical inertia and a fast response to external disturbances, such as load trip, that make this very difficult to do. Furthermore, the presence of the recuperator requires smooth variations to the Turbine Outlet Temperature (TOT), when possible, to ensure reduced thermal stresses to the metallic matrix. This paper, after a brief overview of microturbine control systems and typical transients, presents the expected transient behavior of two advanced cycles: the Externally Fired micro Gas Turbine (EFmGT) cycle, where the aim is to develop a proper control system set-up to manage safe part-load operations at constant rotational speed, and a solar Closed Brayton Cycle (CBC), whose control system has to ensure the maximum efficiency at constant rotational speed and constant Turbine Inlet Temperature (TIT).
Subject
Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering
Reference20 articles.
1. Rodgers, C., “Microturbine Cycle Options,” ASME paper No. 2001-GT-0552.
2. Rowen, W. I.
, 1992, “Simplified Mathematical Representation of Single Shaft Gas Turbines in Mechanical Drive Service,” Turbomachinery Inter., 33, pp. 26–32.
3. Cerelli, E., “Theoretical Modelling and Experimental Measurements of Microturbine Cycles for Distributed Trigeneration,” 2002, Master thesis, TPG-DiMSET, Universita` di Genova, Italy.
4. Traverso, A., Magistri, L., Scarpellini, R., and Massardo, A. F., “Demonstration Plant and Expected Performance of An Externally Fired Micro Gas Turbine for Distributed Power Generation,” ASME Paper No. 2003-GT-38268.
5. Agazzani, A., and Massardo, A., 1995, “Advanced Solar Dynamic Space Power Systems, Part I: Efficiency and Surface Optimization,” ASME Trans. J. Solar Energy Eng., 117, pp. 265–273.
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