-KW Stirling engine based on a testing -constant, and electrical heating was ctive efficiency was about 25.4%. Copyright © 2012 Universitas Ahmad Dahlan. All rights reserved. -V and T-S diagrams for Stirling engine

Measurements were performed to characterize the performance of a Free Piston Stirling Cooler over a wide range of temperatures and heat lifts. The temperature range investigated was from –120°C to +5°C on the cold head side and from 30 to 60°C at the warm head, while heat lifts from 10 to 100W were evaluated. The publication discusses aspects of the experimental part of the investigation, inclu...

In recent years, using new methods in utilization of energy resources has become necessary due to environmental pollution and restriction of energy resources. The hybrid system presented in this article produced power with SOFC and Stirling engine. The purpose is to analyze a 50 kW Solid Oxide Fuel Cell that could produce enough thermal energy for a 10 kW Stirling engine working in the hybrid s...

For a simple finite graph G denote by { G k } the number of ways of partitioning the vertex set of G into k non-empty independent sets (that is, into classes that span no edges of G). If En is the graph on n vertices with no edges then { En k } coincides with { n k } , the ordinary Stirling number of the second kind, and so we refer to { G k } as a graph Stirling number. Harper showed that the ...

This article describes a simple model obtained from a commercial Stirling engine and used for heating a caravan. The Stirling engine has been tested in the lab under different electrical load conditions, and the operating points obtained are presented. As an application of the model, a series of transient simulations was performed using TRNSYS. During these simulations, the caravan is traveling...

The notion of the negative q-binomial was recently introduced by Fu, Reiner, Stanton and Thiem. Mirroring the negative q-binomial, we show the classical q-Stirling numbers of the second kind can be expressed as a pair of statistics on a subset of restricted growth words. The resulting expressions are polynomials in q and 1 + q. We extend this enumerative result via a decomposition of the Stirli...

We introduce a new encoding of the face numbers of a simplicial complex, its Stirling polynomial, that has a simple expression obtained by multiplying each face number with an appropriate generalized binomial coefficient. We prove that the face numbers of the barycentric subdivision of the free join of two CW -complexes may be found by multiplying the Stirling polynomials of the barycentric sub...

We investigate the diagonal generating function of the Jacobi-Stirling numbers of the second kind JS(n+ k, n; z) by generalizing the analogous results for the Stirling and Legendre-Stirling numbers. More precisely, letting JS(n + k, n; z) = pk,0(n) + pk,1(n)z + · · ·+ pk,k(n)z, we show that (1− t)3k−i+1 ∑ n≥0 pk,i(n)t n is a polynomial in t with nonnegative integral coefficients and provide com...

Abstract In this paper we study natural reconfiguration spaces associated to the problem of distributing a fixed number resources labeled nodes tree network, so that no node is left empty. These turn out be cubical complexes, which can thought as higher-dimensional geometric extensions combinatorial Stirling partitioning set named objects into non-empty parts. As our main result, prove these co...

Stirling JW, Woods A. Transmission electron microscopy: diagnostic applications. In: Bancroft JD, Gamble M, eds. Theory and Practice of Histological Techniques, 5th ed. London: Churchill Livingstone; 2002:701-728. JOHN W STIRLING Principal Medical Scientist, Electron Microscope Unit, Anatomical Pathology, Flinders Medical Centre, Bedford Park SA 5042 Australia and Co-Convener RCPA QAP EM progra...