The output from the steam dump controller was the
temperature error of the lead-lag compensated input signals, which determine the valve opening (see Figure 2), and the valve opening determines the steam dump flow.
Error input variables related to changes in temperature are formulated through finding the ratio for the difference of past and present
temperature error values in relation to sampling time ([DELTA]t), as expressed in (3).
Pilots of aircraft not equipped with an RNAV system capable of temperature compensation must use the ICAO Cold
Temperature Error Table found in the AIM at Para.
The systematic errors for the intake pressure transducer such as static accuracy, repeatability, long-term stability and
temperature error band provided by the manufacturer are listed.
For hotspot
temperature error [E.sub.h] in Table 3, the measured temperature values of hotpots with the modified algorithm are the closest to models' compared with LSA and RBF and the reconstruction accuracy is relatively improved (one-symmetrical: 1940.56[degrees]C, [E.sub.h]: 1.82%; two-asymmetrical: 1891.63[degrees]C and 1877.39[degrees]C, [E.sub.h]: 3.18% and 3.24%; three-asymmetrical: 1785.49[degrees]C, 1760.29[degrees]C, and 1893.12[degrees]C, [E.sub.h]: 3.48%, 3.38%, and 2.90%).
16: Temperature distribution for case-1 (one-half symmetry), a) ANN model, b) FEA simulation, c)
temperature error C[degrees]
The LTC2996 has a guaranteed
temperature error [less than or equal to] [+ or -] 1[degrees]C from 0[degrees]C to +100[degrees]C and <[+ or -] 1.5[degrees]C from -40[degrees]C to +125[degrees]C.
In the differential system, the compensation of
temperature error can be best illustrated by (4), which binds the output voltage with the resistance change of all the arms.
Piper N27 Bradford County SEGMENTS Temperature Intermediate Final Missed Appr -21C/-6F X -10C/14F X -18C/0F X -15C/5F X -24C/-11F X COLD
TEMPERATURE ERROR TABLE HEIGHT ABOVE AIRPORT IN FEET REPORTED TEMP [degrees]C 200 300 400 500 600 700 800 900 + 10 10 10 10 10 20 20 20 20 0 20 20 30 30 40 40 50 50 -10 20 30 40 50 60 70 80 90 -20 30 50 60 70 90 100 120 130 -30 40 60 80 100 120 140 150 170 -40 50 80 100 120 150 170 190 220 -50 60 90 120 150 180 210 240 270 REPORTED TEMP [degrees]C 1000 1500 2000 3000 4000 5000 + 10 20 30 40 60 80 90 0 60 90 120 170 230 280 -10 100 150 200 290 390 490 -20 140 210 280 420 570 710 -30 190 280 380 570 760 950 -40 240 360 480 720 970 1210 -50 300 450 590 890 1190 1500
This includes
temperature error, stability (drift), static pressure error and base accuracy.
It calculates the rate of change in building temperature for one hour periods, using the
temperature error (from the set points) to determine the required output from the heating and cooling plant over the next one hour period.
The
temperature error e(k), variation of
temperature error [DELTA]e(k), and air pressure variation [DELTA]P(k) at time k are the input signals of the proposed neural fuzzy network, where e(k) = T(k)-[T.sub.s], [DELTA]e(k) = e(k) - e(k - 1), and Ts is the set temperature of the etcher.
