Open Access Digital Repository of Ministry of Earth Sciences, Government of India

Airborne electrical and microphysical observations in the environment of a thermal power station

Selvam, AM and Murty, ASR and Vijayakumar, R and Ramana Murty Bh., V (1976) Airborne electrical and microphysical observations in the environment of a thermal power station. Atmospheric Environment, 10 (11). pp. 957-961.

Full text not available from this repository. (Request a copy)

Abstract

Using aircraft, electrical and microphysical observations were made on a few occasions within 15 km upwind and downwind of a thermal power station under cloud free and in cloud conditions. The values of the parameters measured were found to be systematically higher in the downwind region than in the upwind. Under cloud free conditions, the concentrations of the cloud condensation nuclei and the computed cloud droplets were higher up to two times, the atmospheric electric field was higher up to seven times and the air temperature up to 2.3°C. Under in cloud conditions, the values of the electric field and droplet charge were higher up to two times, the measured droplet concentration was higher by one and a half times, the cloud air temperature up to 1.5°C and the liquid water content up to four times. However, these differences were in general within the spatial variability found outside the plume affected area. Using aircraft, electrical and microphysical observations were made, on a few occasions within 15 km upwind and downwind of a thermal power station under cloud-free and in-cloud conditions. The values of the parameters measured were found to be systematically higher in the downwind region than in the upwind. Under cloud-free conditions, the concentrations of the cloud condensation nuclei and the computed cloud droplets were higher up to two times, the atmospheric electric field was higher up to seven times and the air temperature up to 2. 3 degree C. Under in-cloud conditions, the values of the electric field and droplet charge were higher by one and a half times, the could air temperature up to 1. 5 degree C and the liquid water content up to four times. However, these differences were in general within the spatial variability found outside the plume affected area.

Item Type: Article
Additional Information: Copyright of this article belongs to Elsevier.
Uncontrolled Keywords: AIR POLLUTION - Control; ENVIRONMENTAL ENGINEERING - India; POWER PLANTS; THERMAL PLUMES, RAIN AND RAINFALL, air pollution; condensation nucleus; droplet size; electric power plant; methodology; temperature
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 18 Apr 2015 05:44
Last Modified: 18 Apr 2015 05:44
URI: http://moeseprints.incois.gov.in/id/eprint/1389

Actions (login required)

View Item View Item