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Thread: High Temp Compressor
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05-04-2010, 01:34 AM #1
High Temp Compressor
We are currently designing a heat pump to recover waste heat from a 55 C bath and pump it to a 95 C bath. We are looking at using a mixture of R152a and R245a. Which in studies has provided a good response in the 90-100C heating range. In the particular study the experiment was run using R 134a compressor. I’m wondering if anybody has any recommendations for 5-6 kW compressors that can handle discharge temps in the 100 C range.
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18-05-2010, 06:17 AM #2
Re: High Temp Compressor
Hitachi products may have this type.
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18-05-2010, 07:07 AM #3
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04-09-2010, 03:32 AM #4
Re: High Temp Compressor
I have a Bristol 12 ton r22 unit in a similar application running r 416. Was originally R12. The Manufacturer used a smaller displacement compressor due to the high head pressures and temp's. The Kiln manufacturer also used copemetics and Carlile compressors. I have recorded discharge temps of 127C with condenser ambient of 74C. Only one Compressor replacement since 1990. One evaporator, 4 expansion valves and one distributor.
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28-09-2010, 06:54 AM #5
Re: High Temp Compressor
i suggest you to use 2 stage compressor. its usually design as rotary type compressor (2 cylinder type)...
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28-09-2010, 08:06 AM #6
Re: High Temp Compressor
R744 transcritical compressors can handle discharge temperatures in excess of 150°C
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01-12-2010, 01:32 PM #7
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01-12-2010, 03:39 PM #8
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17-01-2011, 03:09 PM #9
Re: High Temp Compressor
helloooo guys,
suction pipeline is freezing most of the time & i notice thata the pressure @ low side is to low, how it is happen & whay? anyone can share the idea...
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17-01-2011, 03:18 PM #10
Re: High Temp Compressor
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17-01-2011, 03:20 PM #11
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19-01-2011, 07:08 PM #12
Re: High Temp Compressor
sounds like restricted evap air flow, maybe plugged filter, dirty coil anything causing low air flow.
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