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Contenuto archiviato il 2022-12-27

UNIQUE INNOVATIVE COUPLING OF COMBINED HEAT AND POWER TO MINIMISE OVERALL ENERGY USAGE IN HOTELS

Obiettivo

To demonstrate the unique combination of a total computerised energy management system to control Combined Heat and Power Electrical kW, Thermal kW, Boiler Thermal kW, Electricity Utility kW inputs: Space Heating, Hot Water and Air Conditioning outputs, electrical consumption and maximum demand electrical tariffs. The energy management system will control and monitor the Combined Heat and Power to be used for maximum energy efficiency within two dissimilar hotels so as to optimise energy usage and minimise real consumption. The unique application of an energy management system to control all energy inputs and outputs within two dissimilar hotels with different energy requirements. To prove that energy costs to hotels can be controlled and monitored from one non dedicated PC with maximum savings on all energy usage. Payback period, on replication of similar project would be under two years.
Average availability for the small-scale CHP sets in the Burlington and Berkeley Court hotels is 96%, the remaining 4% being attributed to service maintenance and faults. The CHP in both installations is used as the lead thermal heat source and are sized to base Summer thermal heat demand, thereby ensuring maximum electrical efficiency at all times.
In conjunction with the energy management system, the CHP sets have reduced the Burlington and Berkeley Court's winter bi-monthly maximum demand electricity penalties by 420 kW and 110 kW respectively over the recorded period thusfar; Summer maximum demand penalties were reduced in the Burlington and Berkeley Court sites by 300 kW and 100 kW respectively over the corresponding period. The CHP set within the Burlington hotel produced 916,040 kWh over the 12 month monitoring period from May 91 - April 92. The CHP set within the Berkeley Court hotel produced 916,040 kWh over the 12 month monitoring period from May 1991 - April 1992. The CHP set within the Berkeley Court hotel produced 448,800 kWh over the same 12 month period. The CHP unit within the Burlington hotel produced 1.697,250 kW Thermal over the 12 month recording period, while the set within the Berkeley produced 821,250 kW Thermal over the same period.
Natural gas consumption within the Burlington decreased by 1 1/2% over the above 12 month period, while gas consumption within the Berkeley Court decreased by 12% over the same monitoring period. This decrease in gas consumption within both sites could not have been obtained were it not for the control and monitoring of energy inputs and outputs within both sites by the energy management system.
Significantly improvements in ambient conditions have been achieved in both hotels through the energy system a control and monitoring of some 26 space heating:air condition:hot water zones in the Burlington and by some 20 corresponding zones in the Berkeley Court.
Some 22 electrical appliances are load shed in the Burlington hotel during the Winter maximum demand monitoring periods and some 14 appliances are shed during the Summer maximum demand periods. Within the Berkeley Court site, the energy management system sheds 21 electrical appliances during the Winter maximum demand periods and some 12 appliances during the Summer monitoring periods. Energy cost savings totalling IRL 67,602.90 were achieved within the Burlington site over the 12 month monitoring period to April 1992. Similarly, monetary savings amounting to IRL 34,084.44 were achieved in the Berkeley Court hotel over the same monitoring period. The payback period will be 18 months for both installations.
The energy cost saving as detailed above and the reduction in gas usage within both sites were achieved eventhough degree days recorded during the 12 month monitoring period to April 1992 were 240 higher than those recorded during the 12 months immediately prior to the installation and commissioning of the energy systems withinboth sites.
Combined Heat and Power integrated with Energy Management System to be demonstrated in two dissimilar hotels with two different size of energy requirements. All energy inputs and outputs will be controlled from one central area by an energy management system. Control and monitoring will also be carried out from a local PC. From a remote PC, Temp Technology will control and monitor all energy inputs and outputs for the two dissimilar hotels.
Special emphasis will be placed on diagnostic fault reports on the Combined Heat and Power system and the maximum optimal use of the CHP set as the lead source of energy for electricity and thermal heat requirements. The CHP set will operate during the 15 hour period per day of higher electricity charges, 365 days of the year.
It will produce 131 TOE Electricity per annum and 207 TOE Thermal per annum. Previous energy consumption for both sites was 232 TOE Electrical per annum and 782 TOE Thermal per annum.
Total new energy management system has been developed. 1 CHP unit, sized 95 kWe and 150 kW Thermal has been installed in the Berkeley Court hotel. 1 CHP unit, sized 185 kWe and 310 kW Thermal has been installed in the Burlington hotel. Boiler sequencing of boilers with 4 motorised valves fitted and controlled by the energy management system. 2 Pulse meters have been fitted to link up electricity comsumption with the energy system.

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Invito a presentare proposte

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Meccanismo di finanziamento

DEM - Demonstration contracts

Coordinatore

TEMP TECHNOLOGY LTD
Contributo UE
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Indirizzo
UNIT 9 CHILDERS ROAD INDUSTRIAL ESTATE
LIMERICK
Irlanda

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Costo totale
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