In the present work, an improved Entropy Generation Minimisation (EGM) approach aiming at minimising the revised entropy generation number which is the non-dimensionalised entropy by the ratio of heat flow to the input temperature of the cold fluid is developed for a plate-fin heat exchanger design with multiple design variables with the help of genetic algorithm. It is found that the approach can decrease the total fan power dramatically and improve the exchanger effectiveness simultaneously. Finally, this approach is applied to a heat recovery system where the heat exchanger works as a component of the system.
- Inderscience Publishers
- The Entropy Generation Minimisation based on the Revised Entropy ...
24kW Ground Source Heat Pump In Essex - Case Study
The space heating and hot water for this property was previously done by an oil boiler. The client was considering a ground source heat pump in order to lower running costs and benefit from tariff payments under the Renewable Heat Incentive (RHI). Better Planet carried out a room by room heat loss calculation. This is required in order to size the heat pump correctly, but it is also an input in the assessment of the heating distribution system – in this case a combination of underfloor heating and radiators....
A Guide to District Heating Ireland
Following on from last week’s conference, please find below the link to A Guide to District Heating Ireland, which has been developed by Dublin’s energy agencyCodemaon behalf of theIrish Bioenergy Associationand Tom Bruton of BioXL. The guide aims to understand district heating and its benefits and presents learnings for the Irish context from case studies of existing systems and techno-economic analyses of planned systems to be carried out.The guide can be downloaded hereAlso, some participants were...
Getting an air source heat pump from Better Planet – from first discussion to finished project
Initial contact The initial contact is often on the phoneand we try to establish if an air source heat pump makes sense from a financial and technical point of view. Heat pumps makes sense for most new built projects. For retrofits, heat pumps makes most sense for properties not connected to the gas grid. If you are connected to the gas grid, you should only consider a heat pump if your property is well insulation and you have a heating distribution system allowing you to operated the system with low flow...
Case study - Even during the cold period I turn off heating at day 13!
Two years ago Mr. Piljan from Boljevci in Serbia bought a DACS ventilation system for one of his existing 4 houses. The aim was to find out which ventilation system to choose for his new houses that he was about to build.- I cannot say that I was dissatisfied as such with the existing ventilation system as what I had was a systemsimilar to that of all my colleagues: minimum/medium ventilation through side wall inlets and tunnel ventilation and cooling pads for maximum ventilation.Still Mr. Piljan was struggling...
District heating points way forward for energy prepayment revolution
Ofgem, which has called energy prepayment the option of `last resort`, has announced a price cap for customers until the roll-out of smart meters in 2020. But smart metering is already being widely used in the district heating sector, where it is revolutionising prepayment and reducing energy bills. Customer friendly smart meters are fast making prepayment the first choice option for thousands of residents connected to community heating schemes. Technology from metering and billing specialist Switch2 Energy is...