Promotion of Highly Efficient Gas Heat Pump Air ConditionersTokyo Gas emphasizes the promotion of the GHP XAIR II series among its gas heat pump (GHP) air conditioners, which saves both electricity and energy. The series reduces 20% of annual primary energy consumption, the highest level of efficiency, compared to the previous XAIR. This is achieved by slowing down engine rotation speed during low load operation, which accounts for a significant portion of their running hours.
■Annual Energy Consumption Improvement by XAIR Series
■ENESINFO Optimally Controlling the Smart Multi
■Optimal Control by ENESINFO
Popularization of Air Conditioning to Use Water Evaporation HeatNatural chillers cool air inside rooms by producing cold water in a cycle of water evaporation, absorption, recovery, and condensation. The system uses water as a refrigerant and a lithium bromide*1 water solution as an absorbent that does not include fluorocarbons.
■How Natural Chillers Work
■Example of Combination
Cool Kitchens to Reduce Air Conditioning LoadWe recommend equipment that reduces kitchen heat. The so-called “cool kitchen equipment” reduces air conditioning load by 30%*1 compared to conventional kitchen equipment, and this helps to improve the kitchen environment while saving energy and cutting CO2 emissions.
■Air Conditioning Load Reduction Rate with Cool Kitchen Equipment
Promotion of Highly Efficient Burners for Industrial FurnacesRegenerative burner systems capture heat from exhaust gas into a heat storage unit and use it to preheat an air feed. They boast extremely high combustion efficiency and low nitrogen oxides (NOx) emissions. Also boasting energy savings up to 50%, they have been drawing attention as the ultimate industrial furnaces for reducing CO2 emissions.
Regenerative burner system
Reducing CO2 Emissions by Switching to Natural Gas, and Using it More Efficiently
Promotion of Highly Efficient Steam BoilersWe offer energy savings by replacing conventional large-capacity boilers with small, highly efficient once-through boilers and controlling multiple units. Tokyo Gas has already commercialized small, highly efficient once-through boilers in partnership with manufacturers and is also developing larger once-through boilers featuring outstanding efficiency and durability. We consistently meet the needs for saving energy, cutting CO2 emissions, and reducing costs by promoting and expanding the use of our Steam Fit energy service in combination with these boilers in order to provide an analysis of energy savings at each stage, from the installation of high-efficiency boilers and supply of steam to consumption by the end-user.
Multiple installation of small once-through boilers
CHP systems are energy distribution systems that generate electricity by natural gas-fueled highly efficient engines, turbines or fuel cells and supplies, as well as the steam or hot water produced by using the exhaust heat from power generation. The systems are eco-friendly, and also contribute to the business continuous plan and power reduction in an emergency.
Environmental Friendliness of CHP SystemsCHP systems achieve high energy efficiency because they generate power on users’ site, which realizes no transmission loss and effectively use of exhaust heat from power generation.
■Using Energy Effectively and Reducing CO2 Emissions with CHP Systems*1
Status of Diffusion of CHP SystemsAs of March 2018, CHP systems with a total output of 2,057,000 kW (excluding household units) are in operation in our service area. They are increasingly adopted across a wider range of fields, such as small- and medium-scale consumer use beyond residential use, owing mainly to the development of small models with an output of one kW to tens of kW, in addition to models chiefly designed for plants and commercial facilities with large heat loads.
■Diffusion of CHP Systems
Energy Savings Support Service by One-stop SolutionsWe strive to provide one-stop solutions for customer issues related to energy. Concluding package contracts that cover finance, design and construction work, equipment ownership, energy procurement, maintenance, and other matters allows us to address those issues and meet customer needs in order to save energy and cut CO2 emissions so we can provide an environment in which customers can focus on their business operations.
Energy-saving Services for PlantsWe provide various solutions to plants that not only save energy but also reduce CO2 emissions and costs. Our TG Miru-Net Service visualizes energy use with online measurement and analyses of equipment in order to save energy. The Steam fit service provides comprehensive, ongoing support for steam systems from design to operation. These menus meet the needs for saving energy, cutting CO2 emissions, and reducing cost with a variety of approaches.