Abstract
The geostationary engineering test satellite, type VI uses liquid apogee engines that run on hydrazene (N{sub 2}H{sub 4})/nitrogen tetroxide (NTO) as the storable bipropellant. The accuracy requirement for measuring the flow rate of this storable propellant system is {plus_minus} 0.25% of the nominal flow rate. To meet this requirement, an end-to-end calibration equipment was developed with the actual liquid in place using a turbine flowmeter to examine the calibration method and the calibration accuracy. When the results of the calibrations with NTO and water are compared using the values of calibration coefficients, an error of about {plus_minus} 0.5% was observed in the nominal flow rate, and about {plus_minus} 1% at the maximum in the flow rate regions below that flow. When the separation calibration and the end-to-end calibration were used to derive short time accuracies to compare both, the calibration accuracies were nearly the same. As a result of calibrating the flowmeter used in the combustion test with the proposed calibration method, the calibration accuracy achieved the required accuracy of {plus_minus} 0.25% or better. 6 refs., 12 figs., 10 tabs.
Kuroka, Y.: Tadano, M.;
Sato, M;
Kusaka, K;
Miyajima, H;
[1]
Nagashima, R;
[2]
Sato, M
[3]
- National Aerospace Laboratory, Tokyo (Japan)
- National space Development Agency, Tokyo (Japan)
- Ishikawajima-Harima Heavy INdustries, Co. Ltd., Tokyo (Japan)
Citation Formats
Kuroka, Y.: Tadano, M., Sato, M, Kusaka, K, Miyajima, H, Nagashima, R, and Sato, M.
Calibration of turbine flowmeters for storable bipropellant engines; Chozosei suishinyaku jitsueki ryuryo kosei.
Japan: N. p.,
1991.
Web.
Kuroka, Y.: Tadano, M., Sato, M, Kusaka, K, Miyajima, H, Nagashima, R, & Sato, M.
Calibration of turbine flowmeters for storable bipropellant engines; Chozosei suishinyaku jitsueki ryuryo kosei.
Japan.
Kuroka, Y.: Tadano, M., Sato, M, Kusaka, K, Miyajima, H, Nagashima, R, and Sato, M.
1991.
"Calibration of turbine flowmeters for storable bipropellant engines; Chozosei suishinyaku jitsueki ryuryo kosei."
Japan.
@misc{etde_10126810,
title = {Calibration of turbine flowmeters for storable bipropellant engines; Chozosei suishinyaku jitsueki ryuryo kosei}
author = {Kuroka, Y.: Tadano, M., Sato, M, Kusaka, K, Miyajima, H, Nagashima, R, and Sato, M}
abstractNote = {The geostationary engineering test satellite, type VI uses liquid apogee engines that run on hydrazene (N{sub 2}H{sub 4})/nitrogen tetroxide (NTO) as the storable bipropellant. The accuracy requirement for measuring the flow rate of this storable propellant system is {plus_minus} 0.25% of the nominal flow rate. To meet this requirement, an end-to-end calibration equipment was developed with the actual liquid in place using a turbine flowmeter to examine the calibration method and the calibration accuracy. When the results of the calibrations with NTO and water are compared using the values of calibration coefficients, an error of about {plus_minus} 0.5% was observed in the nominal flow rate, and about {plus_minus} 1% at the maximum in the flow rate regions below that flow. When the separation calibration and the end-to-end calibration were used to derive short time accuracies to compare both, the calibration accuracies were nearly the same. As a result of calibrating the flowmeter used in the combustion test with the proposed calibration method, the calibration accuracy achieved the required accuracy of {plus_minus} 0.25% or better. 6 refs., 12 figs., 10 tabs.}
place = {Japan}
year = {1991}
month = {Jan}
}
title = {Calibration of turbine flowmeters for storable bipropellant engines; Chozosei suishinyaku jitsueki ryuryo kosei}
author = {Kuroka, Y.: Tadano, M., Sato, M, Kusaka, K, Miyajima, H, Nagashima, R, and Sato, M}
abstractNote = {The geostationary engineering test satellite, type VI uses liquid apogee engines that run on hydrazene (N{sub 2}H{sub 4})/nitrogen tetroxide (NTO) as the storable bipropellant. The accuracy requirement for measuring the flow rate of this storable propellant system is {plus_minus} 0.25% of the nominal flow rate. To meet this requirement, an end-to-end calibration equipment was developed with the actual liquid in place using a turbine flowmeter to examine the calibration method and the calibration accuracy. When the results of the calibrations with NTO and water are compared using the values of calibration coefficients, an error of about {plus_minus} 0.5% was observed in the nominal flow rate, and about {plus_minus} 1% at the maximum in the flow rate regions below that flow. When the separation calibration and the end-to-end calibration were used to derive short time accuracies to compare both, the calibration accuracies were nearly the same. As a result of calibrating the flowmeter used in the combustion test with the proposed calibration method, the calibration accuracy achieved the required accuracy of {plus_minus} 0.25% or better. 6 refs., 12 figs., 10 tabs.}
place = {Japan}
year = {1991}
month = {Jan}
}