My heatpump will run at three operating points. After adjusting with correction factors for evaporator temperature and pressure drop to match Sporlan components, these operating points are 2.0, 3.4, and 4.8 tons cooling. The balanced port TEV that I would like to use doesn't have this range...
I've been waiting on the Danfoss applications engineers for a week and a half to obtain a piston sizing chart for Chatleff pistons. I don't know why they don't just post it on their web site like Sporlan does.
Does anyone have a Chatleff piston sizing chart?
I've sized a water/refrigerant shell and tube heat exchanger. I need some practical advice how to configure the tube and baffle pattern. Here is a 3d model of my design:
The box is 14' x 3' x 7". The baffles for the water side are 16" apart, and 7 inches high. I choose this spacing based on...
For a heatpump project, I need to control the flow rate of hot water through a tube in tube desuperheater. Depending on the operating conditions, I need to regulate the hot water flow from 0.16 GPM to 1.5 GPM to heat it to 120°F. What are good ways to do this?
I'm extracting heat from a 37°F stream flowing at 220 gpm. I plan to use copper coils immersed in the open flow as an evaporator. Conventional wisdom suggests that I keep the evaporator temperature high enough to prevent icing. However, the limiting convection heat transfer coefficient is on the...
Is it possible to harness the latent heat of freezing in a heat pump?
I have a water source heat pump application. The water is 40 F. and limited in flow. Is there a way to freeze some ice crystals at the evaporator heat exchanger which could flow out the water source discharge, without...
I am designing and building a water to water heat pump to be directly driven (the runner is fixed to the end of an open drive compressor) by a turgo runner. I am looking for design resources for many aspects of this project.
A few initial questions:
1. Which open-drive or automotive compressor...
