Hiroto Takaguchi

STUDY ON ENERGY CONSERVATION EFFECTS OF HOUSING ELECTRICITY AND HEAT SOURCE EQUIPMENTS

This paper presents effects of housing electricity and heat source equipments. We studied about energy saving effects of 4 equipments, CO2 Heat Pump water heater (CO2-HP), Micro Gas Engine Co-Generation System (GE-μCGS), Polymer Electrolyte Fuel Cell Co-Generation System (PEFC-CGS), and Solid Oxide Fuel Cell Co-Generation System (SOFC-CGS). As the result, we have found that energy consumption and CO2 emission reduction rate is the highest in case of SOFC-CGS. Energy consumption is reduced by 17-20% using SOFC-CGS on Electric Power Load Tracking Operation, and 44-47% on Rated Operation. And CO2 emission is reduced by 5-20% on Electric Power Load Tracking Operation and 22-46% on Rated Operation.

Experimentation and Verification of the “Perfect Recycle House”

Abstract This paper proposes two typical environmentally symbiotic residences and verifies their validity. These residences are designed on the theme “resource circulation and reduction of environmental impact”. One of them is a wooden house based on the Japanese traditional timber frame house, and the other an industrial residence using modern technology and materials. The following results were obtained by the design of these two experimental residences (the Perfect Recycle House), through construction and verification. -It is necessary to establish “recyclable buildings” and ”recyclable facilities.” “buildings” means use of materials which are durable and capable of being recycled, and adoption of dismantling-friendly building methods, and“recyclable facilities” with the aim of establishing circulatory system from the site to the wide area. -Comparison of the W-PRH and S-PRH with conventional houses (wooden house and light gauge steel frame house)by the PRH value were very good; W-PRH shows 170 of PRH value and S-PRH of 402

Indoor Thermal Environments of Cambodian Houses

Currently, there are a variety of types of house from traditional stilt houses to contemporary town houses in Cambodia. Peoples have renovated their own houses based on their own needs or wants according to economic growth. Usually, they built a shading first for cutting direct sunlight and extend their space to outside for improving the quality of life. These actions for renovating their own houses, the quality of the indoor and outdoor environment, and occupant behavior influence each other. I report here about the difference in indoor temperature between several houses include the renovated house.

Energy Consumption and Indoor Temperature in Cambodian Houses

Cambodia is located almost at the center of the Mekong Delta. The largest lake in Southeast Asia, named the Tonle Sap, is located at the center of Cambodia. The Khmer dynasty had flourished in Cambodia, and economic growth has continued following the end of the civil war. There are four main types of housing in Cambodia. They include “town houses” (which are often called “shop houses”), “detached houses,” “traditional houses,” and “condominiums.” In this chapter, the energy consumption of these four types of houses is reported by use and by household income. The results are from several interview surveys that were conducted in Phnom Penh, Siem Reap, Kandal, and Takeo.

Study on effect of small scale wooden biomass Co-generation system

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