TECHNICAL NOTE. CONSTRUCTION AND PERFORMANCE OF THE ROCK-LINED AT TEKAPO B POWER STATION.

1979 ◽  
Vol 66 (4) ◽  
pp. 667-677
Author(s):  
DJE MALAN ◽  
BL HANCOCK
Keyword(s):  
Technical Note ◽  
Power Station ◽  
And Performance

scholarly journals Metrics of Success for Nearshore Nourishment Projects Constructed with Dredged Sediment

2021 ◽  
Author(s):  
Brian C. McFall ◽  
Douglas R. Krafft ◽  
Hande McCaw ◽  
Brooke M. Walker
Keyword(s):  
Performance Metrics ◽  
Technical Note ◽  
Sediment Management ◽  
Dredged Sediment ◽  
The Public ◽  
Local Stakeholders ◽  
And Performance

This Regional Sediment Management Technical Note (RSM TN) provides practical metrics of success for nearshore nourishment projects constructed with dredged sediment. Clearly defined goals and performance metrics for projects will set clear expectations and will lead to longterm project support from local stakeholders and the public.

scholarly journals Technical Note: Noble gas extraction procedure and performance of the Cologne Helix MC Plus multi-collector noble gas mass spectrometer for cosmogenic neon isotope analysis

2021 ◽  
Author(s):  
Benedikt Ritter ◽  
Andreas Vogt ◽  
Tibor J. Dunai
Keyword(s):  
Mass Spectrometer ◽  
Noble Gas ◽  
Primary Standard ◽  
Isotope Analysis ◽  
Extraction Procedure ◽  
Technical Note ◽  
High Mass ◽  
Experimental Setup ◽  
And Performance ◽  
The University

Abstract. We established a new laboratory for noble gas mass spectrometry that is dedicated for the development and application to cosmogenic nuclides at the University of Cologne (Germany). At the core of the laboratory are a state-of-the-art high mass resolution multicollector Helix MCPlus (Thermo-Fisher) noble gas mass spectrometer and a novel custom-designed automated extraction line. The Mass-spectrometer is equipped with five combined Faraday Multiplier collectors, with 1012 Ω and 1013 Ω pre-amplifiers for faraday collectors. We describe the extraction line and the automized operation procedure for cosmogenic neon and the current performance of the experimental setup. Performance tests were conducted using gas of atmospheric isotopic composition (our primary standard gas); as well as CREU-1 intercomparison material, containing a mixture of neon of atmospheric and cosmogenic composition. We use the results from repeated analysis of CREU-1 to assess the performance of the current experimental setup at Cologne. The precision in determining the abundance of cosmogenic 21Ne is equal or better than those reported for other laboratories. The absolute value we obtain for the concentration of cosmogenic 21Ne in CREU is indistinguishable from the published value.

scholarly journals Technical Note: REFIR-PAD level 1 data analysis and performance characterization

2008 ◽  
Vol 8 (1) ◽  
pp. 367-401 ◽  
Author(s):  
G. Bianchini ◽  
L. Palchetti
Keyword(s):  
Data Analysis ◽  
Far Infrared ◽  
Technical Note ◽  
Wave Radiation ◽  
Spectral Radiance ◽  
Data Analysis Procedure ◽  
Infrared Spectral ◽  
Stratospheric Balloon ◽  
Level 1 ◽  
And Performance

Abstract. The outgoing long-wave radiation from the Earth's atmosphere in the far infrared spectral region is mostly unexplored, while is well recognized that the water vapour contribution to greenhouse trapping is dominant in this region. The Radiation Explorer in the Far InfraRed (REFIR) study has proven the feasibility of a space-borne Fourier transform spectrometer able to perform the measurement in the 100–1100 cm−1 range with a resolution of 0.5 cm−1. Following this work a prototype of the spectrometer named REFIR-PAD (Prototype for Applications and Development) has been developed to observe the atmospheric radiance from both ground-based sites and from stratospheric balloon platforms. In this work we describe the REFIR-PAD level 1 data analysis procedure, that, starting from raw instrumental data produces the calibrated atmospheric spectral radiance. Performances of the procedure are also described.

Electrodialysis Reversal at Tutuka Power Station, RSA-Seven Years' Design and Operating Experience

1992 ◽  
Vol 25 (10) ◽  
pp. 277-289 ◽  
Author(s):  
M. Hughes ◽  
A. E. Raubenheimer ◽  
A. J. Viljoen
Keyword(s):  
Current Efficiency ◽  
Operating Experience ◽  
Feed Water ◽  
Total Production ◽  
Water Recovery ◽  
Plant Design ◽  
Power Station ◽  
Salt Rejection ◽  
The Past ◽  
And Performance

The operating and design experience gained during the past seven years of the Electrodialysis Reversal Plant at Tutuka Power Station was evaluated. Factors like plant design and performance measures such as water recovery, salt rejection, current efficiency and CaSO4 saturation were investigated. The valuable operating experience has led to several design improvements to the EDR units, the clean in place system and the feed water pretreatment. Water recovery of 75%, salt rejection of 65% and current efficiency of 86% were achieved. Water recovery and salt rejection can be improved upon as very low CaSO4 saturation analyses were recorded. Plant availability varied between 90% and 57% but is expected to return to 90% as throughput increases. Membrane life has proven to be in excess of guarantee figures. Total production cost of R361,82/M1 was achieved. In conclusion the plant has successfully achieved its aims during the past seven years.

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