EXHAUST GAS SAMPLING APPARATUS

EXHAUST GAS SAMPLING APPARATUS

PROBLEM TO BE SOLVED: To adjust a diluted exhaust gas flow rate allowed to flow into an analytical instrument to a predetermined value in an exhaust gas sampling apparatus configured in such a way that a heat exchanger is not arranged on the upstream of a CVS.SOLUTION: The exhaust gas sampling appar...

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Hauptverfasser: NISHIMOTO AKIHIRO, ASAMI TETSUJI, HISAMORI YOSUKE
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INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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creator NISHIMOTO AKIHIRO
ASAMI TETSUJI
HISAMORI YOSUKE
description PROBLEM TO BE SOLVED: To adjust a diluted exhaust gas flow rate allowed to flow into an analytical instrument to a predetermined value in an exhaust gas sampling apparatus configured in such a way that a heat exchanger is not arranged on the upstream of a CVS.SOLUTION: The exhaust gas sampling apparatus includes: a main flow passage 4 in which diluted exhaust gas is caused to flow; a CVS 5 provided in the main flow passage 4; a diluted exhaust gas sampling flow passage 6 for introducing a part of diluted exhaust gas sampled from the main flow passage 4 into an analytical instrument 10; a flow rate control mechanism 7 for controlling a diluted exhaust gas flow rate sampled in the diluted exhaust gas sampling flow passage; and a control device 8 for setting a flow diversion ratio of the diluted exhaust gas flow rate sampled in the diluted exhaust gas sampling flow passage 6 to a diluted exhaust gas flow rate flowing in the CVS 5. The control device 8 sets a flow diversion ratio (Q/Q) so that diluted exhaust gas flow velocity (V) of diluted exhaust gas flowing into the analytical instrument 10 becomes a predetermined value by using a diluted exhaust gas flow rate (Q) flowing in the CVS 5 or a value (Tor P) related to the diluted exhaust gas flow rate (Q).
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subjects INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
title EXHAUST GAS SAMPLING APPARATUS
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