Steam Engines

It can be at any pressure less than the main steam pressure.

I've operated steam systems with condensate tanks at widely varying pressures. The pressure a condensate tank, (which condenses some steam, but typically takes returns from steam traps) is wholly dependent on the system is installed in. Some heating system condensate tanks are designed to handle no more than 30 psig (minimum design requirement) yet take condensate at 1 or 2 psi from the steam traps. Other high pressure production lines operating at 50 - 100 psig could discharge to a tank at 50 - 100 psi, though the actual pressure would be reduced by the length of pipe transferring it to the tank. And the highest pressure I've operated a condensate system at was 600 psig, the steam system drew the steam for process from an extraction stage on the turbine at nominally 600 psi, though at low loads it was typically a much lower pressure.

steam quality increase

There has to be a built in expansion chamber or release valve. Otherwise the expansion would cause an explosion.

The boiler circulating pump is essential for maintaining the flow of water or steam within the boiler system. Its primary function is to circulate water from the boiler to the heat exchanger and back, ensuring efficient heat transfer and maintaining the desired temperature and pressure levels. This circulation helps prevent overheating and ensures uniform heating throughout the system, contributing to overall operational efficiency and safety.

machines are used to work

The energy source in a steam engine is the heat source that converts water into steam thus creating pressure. The heat source itself can be a coal, wood, gas or petroleum burner but can also be something different like a solar panel or a nuclear reactor (most nuclear reactors are themselves steam engines-generators).

Benjamin Franklin Isherwood

Where it is not possible to bend a pipe due to lack of equipments or the thickness of the pipe, the miter bend is made by cutting the pipes at desired angles.

Gland steam always send from bottom because if we send the gland steam from top then it has a tendency to pass directly to the bottom (condenser) .Due to this reason gland steam is send from bottom so that it occupies total turbine inside vacuum space and seal it.

Because they convert heat to mechanical energy. In both cases they harnes the heat produced as fuel combusts and convert it to pressureized fluid. That fluid then either pushes a piston or pushes on turbine blades and spins a shaft creating usable mechanical energy. The only difference is where the combustion takes place, inside the engine (gasoline and diesel powere piston and turbines) or externally (wood, coal or other fuel powered steam turbines). Most fuels could be used for both internal and external combustion engines, the difference is if the fuel ever enters the engine itself or if only the steam or other working fluid enters the engine.

steam engine uses thermal energy to convert water into steam and then uses pressure of steam to move the engine .thus thermal energy into pressure and further pressure into mechanical energy.

Unless it is an electronic governor on the turbine, there is a mechanical overspeed trip device which closes the trip valve (or trip throttle valve [TTV] on small turbines). This device is a spring loaded weighted pin set into the turbine shaft. At a particular set speed (110% of maximum operating speed, typically) the pin overcomes the force of the spring, flying part way out of the shaft and striking the trip mechanism linkage. This linkage up to that point was holding the trip valve open, now with the release of the linkage the spring on the trip valve instantly closes the valve stopping all flow of steam to the turbine. On electronic governors, when the set point on the turbine speed is reached it opens a solenoid valve (which requires a manual reset) which dumps all hydraulic pressure from the trip valve, allowing it to close.

Because the steam expands as it passes through the turbine. The steam velocity through the turbine is constant from steam chest to exhaust hood (though it changes in each stage). Thus, the space needed for the steam to expand needs to be expanded to correspond with that expansion of the steam.

He was born and raised in Devon, England.

Two of the most common causes of pump cavitation are air in the pump or the fluid being pumped is too hot. Water at 180 degrees will cause the pump to cavitate (steam bubbles form in the eye of the pump on the suction side of the impeller) because of the drop in pressure created on the suction of the pump. This can be corrected by either pumping cooler water, or by raising the net suction head of the pump. Air in the pump can be corrected by venting the pump.