K-COP

K Cop. ((jriffln] Copper-ammonium complex agtic. fungicide. 

The nonlinear optical teclmiques of up- and down-conversion are based on mixing optical beams in a suitable crystal (BBO, LiNbO, KDP, etc) witli tire generation of new optical frequencies tire physical principle is as follows. If two beams having optical frequencies cOp CO2 and wavevectors k, are mixed in a nonlinear optical crystal at tire appropriate angle, a new optical frequency co can be coherently generated witli tire following conditions satisfied ... 

For a Carnot cycle (where AQ = TA.s), the COP for the refrigeratiou apphcatiou becomes (note than T is absolute temperature [K]) ... 

Volume 39 Characterization of Porous Solids. Proceedings of the lUPAC Symposium (COPS I), Bad Soden a. Ts., April 26-29,1987 edited by K.K. Unger, J. Rouquerol, K.S.W. Sing and H. Krai Volume 40 Physics of Solid Surfaces 1987. Proceedings of the Fourth Symposium on Surface Physics, Bechyne Castle, September 7-11,1987 edited by J. Koukal... 

Volume 61 Natural Gas Conversion. Proceedings of the Symposium on Natural Gas Conversion, Oslo, August 12-17,1990 edited by A. Holmen, K.-J. Jens and S. Kolboe Volume 62 Characterization of Porous Solids II. Proceedings of the lUPAC Symposium (COPS II), Alicante, May 6-9,1990... 

In most of these instances the overall reduction in heat flowmay be small, but the cumulative effect within a system maybe enough to reduce the evaporating temperature by as much as 2 K, resulting in a loss in COP of some 6%. 

COPS III), Marseille, France, May 9-12, 1993 edited by J.Rouquerol, F. Rodriguez-Reinoso, K.S.W. Sing and K.K.Unger... 

Proceedings of the 5 " International Symposium on the Characterisation of Porous Solids (COPS-Vj, Heidelberg, Germany, May 30- June 2, 1999 edited by K.K.Unger,G.Kreysa and J.P. Ba lt Volume 129 Nanoporous Materials II... 

Tong Y., Kozai T., Nishioka N., Ohyama K. (2010). Greenhouse heating using heat pumps with a high coefficient of performance (COP). Biosystems Engineering, 106(4), 405-411. 

Fig. 10 a Co K-edge XAS spectrum for CoP collected in transmission mode, showing the approximate regions where XANES and EXAFS features are observed and the assignment of dipolar and quadrupolar transitions, b EXAFS (x) vs. k curve, c Fourier transform of EXAFS... 

Fig. 16 P K-edge XANES spectra for CoP and C00.80V0.20P- The inset highlights the absorption edges, located by their inflection points (vertical dashed lines). Reprinted with permission from [60]. Copyright Elsevier...

The measurement of performance for a refrigerator is called the coefficient of performance (COP), and is denoted by /6r. The coefficient of performance of a refrigerator is defined as the ratio of the desirable heat removed to the work input W of the refrigerator K = Qd -... 

In an ideal reciprocating Stirling refrigeration cycle, 0.01 kg of air at 235 K and 10 bars is expanded isothermally to 1 bar. It is then heated to 320 K isometrically. Compression at 320 K isothermally follows, and the cycle is completed by isometric heat removal. Determine the heat added, heat removed, work added, work done, and COP of the cycle. 

The mass flow rate (1 g/sec) of helium is compressed and heated from 100 kPa and 300 K in an Ericsson refrigeration cycle to a turbine inlet at 800 kPa and 100 K. Determine power required by the compressor, power produced by the turbine, rate of heat removed from the cooler, rate of heat added in the heater, and cycle COP. Draw the T-s diagram of the cycle. 

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