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@LittleInch There was not room to put tee and drain on the bottom of the flue. The side collection works because there is a "collection funnel" in the duct. But you think having the 2 lines Teed together is the cause of the problem? In other words, separate taps into the neutralization...

The attached photo shows the drain at the bottom of a PK boiler with a P-trap, and the drain at the "bottom" of the flue with a loop trap. There is a collection device in the flue to allow condensate to be collected at the point where the drain is located. The boiler has decolorization on the...

This should be an easy check with the manufacturer. I don't use metric units and don't have time to convert and double-check anything. But the nominal tonnage rating of a piece of equipment is based on certain flow and temperature conditions, and it is most likely based on straight water with...

So will all 4 heat exchangers be active all the time or will you be staging them? Your question seems to suggest that they will all be open, and you are worried about the closest one getting too much (or all) of the flow. If the load is small, you should only need one heat exchanger. There...

Air leaving a cooling coil is close to 100% RH (unless it is a dry climate). There seems to be confusion about that in some of these posts. You most likely do not have a reheat coil in the air handler and probably have them out in the ductwork (e.g. VAV boxes). So the air leaving the AHU is...

Thanks all for your input......even you MJCronin, in spite of your arrogance! People come to this forum for help. You could offer help without being rude. I have been involved with HVAC steam piping for almost 30 years, but I have never been involved with piping a turbine. In fact, I am...

I believe the main is 6" - same as the blow off. Don't know velocities. They want me to put an increaser and short run of larger pipe on the end to reduce velocity and hopefully noise. Planning to transition up to 14" for the discharge. There will be no silencer. I was able to get a little...

That's why I'm asking. Not my turbine.....I am not running the steam piping to it. I am only being asked to install this blow off piping for a 2-day test, and then the piping will be removed. The purpose is to blow out the crap before connecting to the turbine.

I have been asked to install a 6" blow out line for a 250 psi steam line that will be powering a turbine. The purpose is to blow out any slag in this temporary blow off line. basically, it will be a 6" line with a gate valve that will vent outside for a couple days worth of testing. I need...

Is there any agitation in the vessel? 50 L is not very large, but you have given no info on the contact surface area of the jacket. If the liquid in the vessel is stagnant, it will take longer. but again, this is a small vessel. More info is needed.

Is the room comfortable? That is the only thing that really matters. Trying to quantify the change in airflow before versus now is challenging. Bottom line, are there comfort issues now that you didn't have before? If not, don't worry about it.

I would be concerned that you truly have hydraulic separation with this. It would seem to me that the path of flow straight through the perforated pipe may have less resistance than existing through the perforations. Hard to say without knowing more. When you want considerably less flow in...

First cost? Operating cost? Too many variables. Is this just one large open space? Office? Warehouse? number of zones? Required ventilation? You need more information to make that decision.

I think one of your flow arrows is the wrong direction. otherwise, it makes sense to me. The tank should serve better than just a piece of pipe as a bridge. Do you have enough volume not to short-cycle the chiller?

yes, I was just going to say that to you. And a circuit setter on your pump loop. I think that's what the "M" was showing on MTES93's drawing

I like that idea @MTES93. Cross over bridges with the control valve in the bridge. That eliminates the differential pressure concern caused by the main pumps. Never heard of that combined domestic/heating system. Seems like it would be plagued with problems when there isa large domestic...

Are you saying that your BLDG HWS and BLDG HWR lines are carrying water that is used for both building heat and domestic hot water?

What plenum? Are these fan coils in individual rooms? How is the OA introduced - just into common spaces, or actually ducted into each fan coil?

OK, your building hot water supply and your fan coil hot water supply are too close for my thoughts. plus, I didn't realize you have multiple setups. I was hoping your fan coil supply temp would be significantly lower. I was going to suggest pulling both your supply and return branches off...

Thinking outside the box here.... What are the supply and return temps of your BLDG HW mains? What is the rough flow in the Bldg HW mains? What is the flow of your new pump? What supply and return temps do you want on the other side of the heat exchanger?