Spatial Structure of a City with a District Heating and Cooling System Using Combined Heat and Power Generation and a Photovoltaic System for CO2 Emission Reduction

Abstract

The objective of this paper is to clarify how spatial structure of a city with a district heating and cooling (DHC) system using combined heat and power generation (CHP) and a photovoltaic (PV) system affects the amount of CO2 emission reduction. First, on the assumption that a district contains offices, residences, and stores, the author calculates CO2 reduction ratio and the amount of CO2 reduction per cost by installation of above systems to the district and compares their effects according to building use patterns and floor area ratio. Second, assuming the city consisting of above building uses and constraints in the city area, the author shows combinations of the DHC and PV districts in a city where the amount of CO2 emission is minimized.