Cost-optimality of an office building with different small scale biomass-based co-generation technologies

Ayman Mohamed, Ala Hasan, Kai Siren

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Abstract

The economic viability of using small-scale biomass -based co-generation heat and power (CHP) as a heating system for an office building, in Helsinki, Finland, using the Energy Performance of Building Directive (EBPD) comparative framework methodology is the aim of this study. Seven heating/cooling energy generation system package (H/C-EGSP) consisting of four CHP technologies with vapor compression refrigeration (VCR) cooling system comparing three conventional heating and cooling systems are investigated. The suggested energy efficiency measures consist of building structure measures; external wall insulation, window type, and envelope air-tightness, and system package of ventilation system, and daylight control getting 144 building combinations, and alongside the H/C-EGSPs, altogether 1008 cases. The res ults show that the investigated small scale biomass-based CHPs with low power/heat (P/H) ratio have cost optimal solution less than that with high P/H which have higher investment cost relating to higher associated electrical capacities as well as higher operational energy costs due to lower thermal efficiency. The pellet boiler and vapor compression refrigeration (PB-VCR) has the minimum cost optimal solution, among all H/C-EGSPs.These results are not affected when the sensitivity analysis is conducted under different real discount rates, different biomass-based CHP investment cost, and differ ent feed-in tariff for the surplus electricity exported in cases of the CHPs.
Original languageEnglish
Title of host publicationProceedings
Number of pages14
Publication statusPublished - 2015
MoE publication typeB3 Non-refereed article in conference proceedings
EventEuropean Nearly Zero Energy Buildings Conference - Wels, Austria
Duration: 26 Feb 201527 Feb 2015

Conference

ConferenceEuropean Nearly Zero Energy Buildings Conference
CountryAustria
CityWels
Period26/02/1527/02/15

Fingerprint

Office buildings
Biomass
Heat generation
Vapor compression refrigeration
Power generation
Costs
Cooling systems
Heating
Sensitivity analysis
Ventilation
Boilers
Energy efficiency
Insulation
Electricity
Cooling
Economics
Air
Hot Temperature

Keywords

  • cost optimality
  • office building
  • small scale biomass-based co-generation

Cite this

@inproceedings{4da949b96ad444559685d7502eeaea80,
title = "Cost-optimality of an office building with different small scale biomass-based co-generation technologies",
abstract = "The economic viability of using small-scale biomass -based co-generation heat and power (CHP) as a heating system for an office building, in Helsinki, Finland, using the Energy Performance of Building Directive (EBPD) comparative framework methodology is the aim of this study. Seven heating/cooling energy generation system package (H/C-EGSP) consisting of four CHP technologies with vapor compression refrigeration (VCR) cooling system comparing three conventional heating and cooling systems are investigated. The suggested energy efficiency measures consist of building structure measures; external wall insulation, window type, and envelope air-tightness, and system package of ventilation system, and daylight control getting 144 building combinations, and alongside the H/C-EGSPs, altogether 1008 cases. The res ults show that the investigated small scale biomass-based CHPs with low power/heat (P/H) ratio have cost optimal solution less than that with high P/H which have higher investment cost relating to higher associated electrical capacities as well as higher operational energy costs due to lower thermal efficiency. The pellet boiler and vapor compression refrigeration (PB-VCR) has the minimum cost optimal solution, among all H/C-EGSPs.These results are not affected when the sensitivity analysis is conducted under different real discount rates, different biomass-based CHP investment cost, and differ ent feed-in tariff for the surplus electricity exported in cases of the CHPs.",
keywords = "cost optimality, office building, small scale biomass-based co-generation",
author = "Ayman Mohamed and Ala Hasan and Kai Siren",
note = "Project code: 82593",
year = "2015",
language = "English",
booktitle = "Proceedings",

}

Mohamed, A, Hasan, A & Siren, K 2015, Cost-optimality of an office building with different small scale biomass-based co-generation technologies. in Proceedings. European Nearly Zero Energy Buildings Conference, Wels, Austria, 26/02/15.

Cost-optimality of an office building with different small scale biomass-based co-generation technologies. / Mohamed, Ayman; Hasan, Ala; Siren, Kai.

Proceedings. 2015.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

TY - GEN

T1 - Cost-optimality of an office building with different small scale biomass-based co-generation technologies

AU - Mohamed, Ayman

AU - Hasan, Ala

AU - Siren, Kai

N1 - Project code: 82593

PY - 2015

Y1 - 2015

N2 - The economic viability of using small-scale biomass -based co-generation heat and power (CHP) as a heating system for an office building, in Helsinki, Finland, using the Energy Performance of Building Directive (EBPD) comparative framework methodology is the aim of this study. Seven heating/cooling energy generation system package (H/C-EGSP) consisting of four CHP technologies with vapor compression refrigeration (VCR) cooling system comparing three conventional heating and cooling systems are investigated. The suggested energy efficiency measures consist of building structure measures; external wall insulation, window type, and envelope air-tightness, and system package of ventilation system, and daylight control getting 144 building combinations, and alongside the H/C-EGSPs, altogether 1008 cases. The res ults show that the investigated small scale biomass-based CHPs with low power/heat (P/H) ratio have cost optimal solution less than that with high P/H which have higher investment cost relating to higher associated electrical capacities as well as higher operational energy costs due to lower thermal efficiency. The pellet boiler and vapor compression refrigeration (PB-VCR) has the minimum cost optimal solution, among all H/C-EGSPs.These results are not affected when the sensitivity analysis is conducted under different real discount rates, different biomass-based CHP investment cost, and differ ent feed-in tariff for the surplus electricity exported in cases of the CHPs.

AB - The economic viability of using small-scale biomass -based co-generation heat and power (CHP) as a heating system for an office building, in Helsinki, Finland, using the Energy Performance of Building Directive (EBPD) comparative framework methodology is the aim of this study. Seven heating/cooling energy generation system package (H/C-EGSP) consisting of four CHP technologies with vapor compression refrigeration (VCR) cooling system comparing three conventional heating and cooling systems are investigated. The suggested energy efficiency measures consist of building structure measures; external wall insulation, window type, and envelope air-tightness, and system package of ventilation system, and daylight control getting 144 building combinations, and alongside the H/C-EGSPs, altogether 1008 cases. The res ults show that the investigated small scale biomass-based CHPs with low power/heat (P/H) ratio have cost optimal solution less than that with high P/H which have higher investment cost relating to higher associated electrical capacities as well as higher operational energy costs due to lower thermal efficiency. The pellet boiler and vapor compression refrigeration (PB-VCR) has the minimum cost optimal solution, among all H/C-EGSPs.These results are not affected when the sensitivity analysis is conducted under different real discount rates, different biomass-based CHP investment cost, and differ ent feed-in tariff for the surplus electricity exported in cases of the CHPs.

KW - cost optimality

KW - office building

KW - small scale biomass-based co-generation

M3 - Conference article in proceedings

BT - Proceedings

ER -