Response test

Chlorine Institute. Members of the Chlorine Institute are required to reaffirm their commitment to the Institute s safety pledge, including prevention of chlorine releases. The safety pledge also includes aimual safety audits, aimual emission and ha2ard evaluations of chlorine operations, periodic emergency-response test drills, and coordination with local officials for protection of the community (32) (see Alkali AND CHLORINE PRODUCTS). 

An open-loop frequency response test on an unknown system produced the following results ... 

Keywords Geothermal response test, ground thermal conductivity, line source, GENOPT, TRNSYS, borehole heat exchanger... 

During the many tests we performed we found that that ground water flow will significantly affect results of the In Situ Geothermal Response Test. This is especially clear in the CUSUM graphs, that show an increasing estimate of ground thermal conductivity with time. The reason for this is that the effect... 

Figure 55. Geothermal response test with combined heat extraction/heat injection and different energy levels, shown are the borehole heat exchanger flow and return temperatures and the calculated heat flux. Borehole flow rate is not shown in the graph...

The Geothermal Response Test as developed by us and others has proven important to obtain accurate information on ground thermal properties for Borehole Heat Exchanger design. In addition to the classical line source approach used for the analysis of the response data, parameter estimation techniques employing a numerical model to calculate the temperature response of the borehole have been developed. The main use of these models has been to obtain estimates in the case of non-constant heat flux. Also, the parameter estimation approach allows the inclusion of additional parameters such as heat capacity or shank spacing, to be estimated as well. 

Eklof, C., and S. Gehlin, 1996. TED—A mobile equipment for Thermal Response Tests, Master s Thesis 1996 198E, Lulea University of Technology, Sweden. 

Gehlin, S., 1998. Thermal Response Test, In-Sim Measurements of Thermal Properties in Hard Rock, Licentiate Thesis, No. 37, Lulea University of Technology, Department of Environmental Engineering, Division of Water Resources Engineering, 41 pp. 

Gehlin, S., and P.E. Hellstrom, 2003. Comparison of four models for thermal response test evaluation, ASHRAE Trans., 109 (1), 1-12. 

Wagner, R., and C. Clauser, 2005. Evaluating thermal response test using parameter estimation on thermal conductivity and thermal capacity, J. Geophys. Eng., 2, 349-356. 

Figure 70. Result (average circulation medium temperature with LN(time)) of the In Situ Thermal Response Test for the Croydon test site...

In the boreholes, which are placed at a parking lot, single U-pipes are installed. There is no back filling, but the holes are filled with ground water. The boreholes are drilled through 65 m of clayey soil and 135 m of shale. The thermal conductivity has been measured with a Thermal Response Test (TRT) to be approx. 2.8 W/m K. 

Before the calculation of performances, heating and cooling loads which can be covered by the Energy Pipe System are evaluated. Total amount of heating and cooling is 230 GJ and 75.6 GJ, respectively, and peak loads are 50 kW for heating. On the other hands, average effective thermal conductivity was measured by the on-site thermal response test and it was 2.2 W/(mK). 

Figure 9-4 Too Little Phase Margin Shows Up in a Step-Load Response Test...

One additional strategic issue must be recognized in drug development. Submission of data to support the use of a medicine response test must be coordinated with the submission of the application for marketing of the medicine. In the U.S., both centers are under the umbrella of the FDA, but this is not necessarily true in all countries. The timing of these submissions is critical to ensure that the test will be available at the time of the approval of the drug. Furthermore, as mentioned above, for maximum efficiency in the approval of subsequent test improvements, DNA samples of patients whose data support the claims for the medicine response test need to be maintained according to GLP. 

There will be a number of people who will be concerned about whether patients and health care providers are ready for medicine response tests and... 

US-EPA (1996) Office of Solid Waste and Emergency Response. Test methods for evaluating solid waste (SW-846)... 

Frequency response testing mesures the amplitude, r, and the phase angle, . These involve the parameters of the transfer function so this mode of testing can identify two such parameters. The relationship depends on the properties of complex numbers. 

Portier, C.J. and Bailer, A.J. (1989). Testing for increased carcinogenicity using a survival-adjusted quantal response test. Fundam. Appl. Toxicol. 12 731-737. 

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