Design, development and performance estimation of 110 kW kinetic heating simulation facilities for material studies–Phase I

2021 ◽  
pp. 17-28
Author(s):  
Aldin Justin sundararaj ◽  
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...  

In this work, a kinetic heating simulation (KHS) facility has been designed, developed and the performance estimation is carried out in Propulsion and High enthalpy lab held at Karunya Institute of Technology and Sciences. The main objective of developing a KHS facility is to study the material characteristics high temperature paints at elevated temperatures. The Kinetic heating simulation facility is developed for 110 kW power rating. The current facility is designed to hold maximum of 105 Infrared lamps with each lamp having a power rating of 1kW. Ceramic lamps are used for heating the specimen. 15 lamps are placed in a bank and each bank can be controlled individually with the help of controlling unit. A total of 7 banks are used in operation of the kinetic heating simulation facility. To estimate the performance of the KHS facility K-type thermocouple are used for feedback as well as to measure temperature. The KHS also has provision for heat flux measurement. Preliminary studies are carried out to estimate the performance of KHS facility for various ranges

AIP Advances ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 045210
Author(s):  
Yuan Wang ◽  
Xiaoping Li ◽  
Donglin Liu ◽  
Yanming Liu

2008 ◽  
Vol 135 ◽  
pp. 012064 ◽  
Author(s):  
Stefan Löhle ◽  
Jean-Luc Battaglia ◽  
Jean-Laurent Gardarein ◽  
Pierre Jullien ◽  
Bruno van Ootegem

Atmosphere ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 281
Author(s):  
Stuart L. Joy ◽  
José L. Chávez

Eddy covariance (EC) systems are being used to measure sensible heat (H) and latent heat (LE) fluxes in order to determine crop water use or evapotranspiration (ET). The reliability of EC measurements depends on meeting certain meteorological assumptions; the most important of such are horizontal homogeneity, stationarity, and non-advective conditions. Over heterogeneous surfaces, the spatial context of the measurement must be known in order to properly interpret the magnitude of the heat flux measurement results. Over the past decades, there has been a proliferation of ‘heat flux source area’ (i.e., footprint) modeling studies, but only a few have explored the accuracy of the models over heterogeneous agricultural land. A composite ET estimate was created by using the estimated footprint weights for an EC system in the upwind corner of four fields and separate ET estimates from each of these fields. Three analytical footprint models were evaluated by comparing the composite ET to the measured ET. All three models performed consistently well, with an average mean bias error (MBE) of about −0.03 mm h−1 (−4.4%) and root mean square error (RMSE) of 0.09 mm h−1 (10.9%). The same three footprint models were then used to adjust the EC-measured ET to account for the fraction of the footprint that extended beyond the field of interest. The effectiveness of the footprint adjustment was determined by comparing the adjusted ET estimates with the lysimetric ET measurements from within the same field. This correction decreased the absolute hourly ET MBE by 8%, and the RMSE by 1%.


2020 ◽  
Vol 1683 ◽  
pp. 022018
Author(s):  
S Z Sapozhnikov ◽  
V Y Mityakov ◽  
A Y Babich ◽  
E R Zainullina

1977 ◽  
Author(s):  
J. Wilkins ◽  
R.E. Witheridge ◽  
D.H. Desty ◽  
J.T.M. Mason ◽  
N. Newby

1998 ◽  
Vol 35 (1) ◽  
pp. 81-95 ◽  
Author(s):  
D W Sargent ◽  
R D Beckie ◽  
G Smith

This paper reviews the process used to design the construction dewatering system at the Influent Pumping Station at Annacis Island Wastewater Treatment Plant. The design process followed the "observational method," as applied to soil mechanics by K. Terzaghi and set out by R.B. Peck in the Ninth Rankine Lecture. The design was based on a working hypothesis of behaviour anticipated under the most probable conditions identified in the data gathering and assessment program. The sensitivity of the design was evaluated by considering potentially unfavourable conditions evident in the available data. The design development included a review of monitoring feedback obtained during the pumping-well installation, a pumping test, and the dewatering system start-up. The monitoring program and review process are presented.Key words: dewatering, observational method, case study, pumping test.


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