Carl H. Kraeling Papers, 1947-1955

This file contains a finding aid for the Carl H. Kraeling Collection. To access the collection, please contact the archivist ([email protected]) at the American Schools of Oriental Research, located at Boston University.This collection contains correspondence with other archeologists and ASOR associates regarding research, finances, and political conditions in the Near East. The records also include annual financial records, trustee meeting minutes and memoranda, and information on an ongoing microfilming project. Of particular interest is correspondence regarding the discovery, processing, interpretation, and public unveiling of the Fourth Dead Sea Scroll and correspondence with the Archbishop Athanasius Yeshue Samuel

Improvements in world-wide intercomparison of PV module calibration

The calibration of the electrical performance for seven photovoltaic (PV) modules was compared between four reference laboratories on three continents. The devices included two samples in standard and two in high-efficiency crystalline silicon technology, two CI(G)S and one CdTe module. The reference value for each PV module parameter was calculated from the average of the results of all four laboratories, weighted by the respective measurement uncertainties. All single results were then analysed with respect to this reference value using the En number approach. For the four modules in crystalline silicon technology, the results agreed in general within ±0.5%, with all values within ±1% and all En numbers well within [ 1,1], indicating further scope for reducing quoted measurement uncertainty. Regarding the three thin-film modules, deviations were on average roughly twice as large, i.e. in general from ±1% to ±2%. A number of inconsistent results were observable, although within the 5% that can be statistically expected on the basis of the En number approach. Most inconsistencies can be traced to the preconditioning procedure of one participant, although contribution of other factors cannot be ruled out. After removing these obvious inconsistent results, only two real outliers remained, representing less than 2% of the total number of measurands. The results presented show improved agreement for the calibration of PV modules with respect to previous international exercises. For thin-film PV modules, the preconditioning of the devices prior to calibration measurements is the most critical factor for obtaining consistent results, while the measurement processes seem consistent and repeatable.JRC.C.2-Energy Efficiency and Renewable