Heat gain is the heat accumulated from the sun in the system. Solar thermal heat is trapped using the greenhouse effect; the greenhouse effect in this case is the ability of a reflective surface to transmit short wave radiation and reflect long wave radiation.
Sponsored Topics. Schenectady ( /skÉnÉktÉdi/) is a city in Schenectady County, New York, United States, of which it is the county seat. As of the 2010 census, the city had a population of 66,135. The city of Schenectady is in eastern New York, near the confluence of the Mohawk and Hudson Rivers.
Dunkirk is a city in Chautauqua County, New York in the USA. It was officially incorporated in 1880, though it was first settled around 1805. The population was 13,131 at the 2000 census. Dunkirk is bordered on the north by Lake Erie. It shares a border with the Village of Fredonia to the south, and with the Town of Dunkirk to the east and west. Dunkirk is the westernmost city in the state of New York.[citation needed] According to the United States Census Bureau, the city has a total area of 4.6 square miles (11.8 kmÂ²), of which, 4.5 square miles (11.7 kmÂ²) of it is land and 0.04 square miles (0.1 kmÂ²) of it (0.88%) is water.