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Derek M
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Derek M
@derek-m
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Illustrious Member
Joined: Mar 4, 2021
Last seen: Sep 19, 2024
Profile Activity
Topics: 7 / Replies: 4405
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RE: SCOP and seasonal variations

Looking at the data it would appear that your heat pump is still working and maintaining the IAT during the setback period, so the setback does not ap...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: SCOP and seasonal variations

Quite some time ago I created an Excel Modeling Tool with which it is possible to approximate the operating parameters of a heat pump under varying op...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: SCOP and seasonal variations

Don't confuse SCOP with COP. You are indeed correct your costs will be much higher in Winter than in Summer, not just because you are using more ele...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: SCOP and seasonal variations

Having just read your original post I feel there is need for clarification. If my understanding is correct, SCOP is the 'seasonal' coefficient of pe...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: SCOP and seasonal variations

@graeme You may find the following link of use.

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: SCOP and seasonal variations

Improved insulation will have an impact on both COP and SCOP, since reducing the thermal energy demand should improve the efficiency. The simple fac...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New ASHP system - choices

In an ideal world a heat pump unit would contain two compressors, a nominal 12kW capacity heat pump having one compressor rated at 8kW and one compres...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP Advice: High Temperature vs. Low Temperature Heat Pump For Microbore

@jamespa I fully agree with James that a HT heat pump will probably be no more costly to run than a LT heat pump when operating at the same LWT. I...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Gas Combi to ASHP - Making sense of survey results and proposal.

It is difficult to assess from just a small section of the data, but the rated capacity of a heat pump is based upon the thermal energy output, not th...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Gas Combi to ASHP - Making sense of survey results and proposal.

@irmartini The heat loss calculation should detail the estimated amount of thermal energy required each hour to keep the rooms at the specified temp...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Delivering a smart and secure electricity system: government consultation

Some photo's of your system may be of use in resolving your problem. Before the system was changed did you have one dual rate meter or two single rate...

1 year ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: Delivering a smart and secure electricity system: government consultation

As more consumers install EV chargers, Heat Pumps and even battery storage, this may help reduce phase imbalance, if they are evenly spread across the...

1 year ago
Forum
Government Schemes, Regulations, Planning & Organisations
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