Nêu đặc điểm cấu tạo của dầm bê tông cốt thép: các loại tiết diện dầm bê tông cốt thép thường gặp, các loại cốt thép trong dầm và vai trò của từng
loại

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater

Water at 55c flows across a flat plate whose surface temperature is held constant at 95c. if the temperature gradient at the plate's surface for a given value of x is 18 c/mm, find a) local heat transfer coefficient. b) heat flux

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.