成果報告書詳細
管理番号20150000000532
タイトル*平成26年度中間年報 再生可能エネルギー熱利用技術開発 その他再生可能エネルギー熱利用トータルシステムの高効率化・規格化 都市除排雪を利用した雪山貯蔵による高効率熱供給システムの研究開発
公開日2015/9/1
報告書年度2014 - 2014
委託先名株式会社雪屋媚山商店 株式会社共同通信デジタル テコラス株式会社 株式会社環境技術センター 株式会社ズコーシャ 国立大学法人室蘭工業大学
プロジェクト番号P14017
部署名新エネルギー部
和文要約
英文要約2014 Project Overview Report

1. Development of heat collection method from snow ice and heat collection facilities that can use snow cleared away in a city.
We develop the heat exchanging system which collects cold energy from a soiled snow mound thrown away at the city.
It is necessary that the snow mound also functions as a snow dumping site and ensures the structural strength. Also it is necessary to develop the heat exchange system that can withstand impurities present in the cleared snow.
We looked into the possibility of developing the snow cooling system where the total installation cost is significantly reduced even after including the increase in construction cost due to the heat exchange system. Considering feasibility study about the system, we designed and prepared heat exchange paving of 10m X 10m module size as a small-scale experiment facility

2. Design of hybrid snow cooling system combined with free cooling.
We designed a hybrid snow cooling system that also included an air based cooling system (free cooling) and could change the cooling heat source according to air temperature.

3. Designing the method of combining hybrid snow cooling system - heating system that supports room heating demand in winter using server waste heat.
We carried out research and development so that cooling coils and pipes used for cooling the server could also be used for waste heat recovery from servers in winter with the help of snow cooling.

4. Trial calculation of expected cost reduction.
Based on the results of aforementioned system design, we summarized the economic feasibility of implementing in private companies and we demonstrated its economic superiority. With Bibai City, we studied the system using the snow cleared in the cities, and we confirmed that the snow collection cost could be handled within the range of Bibai City’s budget for clearing the snow up to 70,000 - 80,000 tons/year.

5. Consideration of the mutual supply type business model using the snow energy and industrial waste heat.
Structural formation of the “Crops cultivation system" is aimed in this study. This system is also to efficiently utilize industrial waste heat from a data center and cold energy derived from snow. A feasibility study was conducted to verify "the optimal heating and cooling system” and “possibility of cost reduction in the initial and running cost by 10% comparing to existent system”. Annual thermal load for land-based recirculating abalone aquaculture system was estimated in order to assess utilization of snow cooling and low-temperature waste heat from the data center. Three buildings of 1,000 m2 were assumed as a feasible facility scale.

6. Possibility investigation of the drying apparatus for the low temperature by the snow.
We investigated the drying apparatus by the snow on the basis on "Snow cooling". We found out that was possible to the prototype of the dry system using the snow mound using city snow disposal.

7. Feasibility study of all air type snow cooling system which is combined with outdoor air cooling and water spray cooling.
Because the storage installation of the snow can be drastically reduced by outdoor air cooling and water spray cooling in combination with snow cooling, the construction cost of the snow cooling system would become inexpensive. We also made it clear by economical evaluation that the running cost was fairly reduced by use of the renewable and unutilized energy.
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