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TASK4 OVERVIEW JAPAN NATIONAL TEAM

2016.02.11 WASEDA University

Kiyoshi Saito

TASK4 OVERVIEW JAPAN NATIONAL TEAM, 2016, 02, 11

CONTENTS FOR TASK4

2

• Goal • Scope • Questions Contents of R&D of DHW for country report • History of development • System technologies • Component technologies • Refrigerant

• End-user focused technologies • Installer focused technologies • Water quality management technologies • Smart technologies

• Other supportive technologies • Big public projects • Funding support


3

GOAL

• Share knowledges of state of the art technologies • Share knowledges to predict future technologies In this case, we have to consider Cost Size Efficiency Common or special technologies? for situation of each country

• Share some other supportive technologies or financial supports to develop of DHW


SCOPE

4

For heat pump technology itself • From elemental to system technologies • From conventional to future technologies

For total hot water supply system

• Including end-user focused technologies • Including installer focused technologies • Water quality management technologies • Smart technologies


QUESTION ABOUT CONTENTS

5

• Are there anything -custom or climate- to restrict the system development?

• What is suitable size and capacity for each country


HISTORY OF R&D

6

In Japan,

1986: Development of two stage compression system-Refrigerant was Freon

1995: Research on CO2 refrigerant system started

2001: CO2 refrigerant heat pump system started to be put on market

2013: 4 million systems CO2 refrigerant heat pump systems were in market


SYSTEM TECHNOLOGIES

7

Main system configuration In Japan, Most of water heater heat pump system consists of heat pump and thermal storage tank System is clasiffied by tank size

Manufactures • CHOFU • CORONA • Daikin • Denso • Hitachi • Mitsubishi • Panasonic • Toshiba


SYSTEM TECHNOLOGIES

8


SYSTEM TECHNOLOGIES

9

Smaller type

177L 370L Difference

Width ４３０㎜６３０㎜ ▲２００㎜

Depth ６３０㎜７６０㎜ ▲１３０㎜

Wight ５３㎏６８㎏ ▲ １５㎏

■Size, weight

About ２２％ lighter


SYSTEM TECHNOLOGIES

10

エコキュートの薄型タイプを貯湯タンクユニット寸法業界最薄「奥行寸法４３０mm」で開発。ターゲットを「都市部狭小地」とし、薄さにとことんこだわりました。

<Installation image>

Thin type unit whose depth is 430mm Since Japanese house is very small, we have to make system smaller


COMPONENT TECHNOLOGIES

11

A C B

CO2-水熱交換器 2003年

モデル～

ﾒｰｶｰ

圧縮機

多くのﾒｰｶｰに OEM

二段圧縮式 (中間圧はｹｰｽ内に)

スイング式 (ｼｰﾙは面接触)

ｽｸﾛｰﾙ式 (＋効率向上にｴｼﾞｪｸﾀ)

初号機はｷｬﾋﾟﾗﾘｰﾁｭｰﾌﾞの束を水ﾁｬﾝｴﾙが囲む方式

水配管に冷媒配管を埋込み

水配管に冷媒配管を巻き付け

D

冷媒配管

水配管（ツイスト管）

ロータリー式CO2圧縮機

ﾎﾟｷﾎﾟｷﾓｰﾀ

広げた鉄心にｺｲﾙを巻いてから丸める

（高密度で整列巻を容易に）

Compressor & Heat exchanger


COMPONENT TECHNOLOGIES

12

ＶＩＰ

EPS Type Insulator

Normal ＥＰＳ

Premium ＥＰＳ+ＶＩＰ+ＥＰＳ

Triple layer with ＥＰＳ and ＶＩＰ

内側のＥＰＳとその周辺を覆うＶＩＰのイメージです。実際にはさらにその外側にＥＰＳがあり、三重構造となっています。

■Image

※ＶＩＰ： Vacuum Insulation Panel EPS： Expanded Poly-Styrene

Thermal storage


REFRIGERANT

13

In Japan, • Refrigerant of most of DHW is CO2

• Recently, R32 system has been just put on market


END-USER FUCUSED TECHNOLOGIES

14

Multi function type Water supply + floor heating + air-conditioner

Floor heating

14



15

約０．０１ミリのマイクロバブル

花王株式会社との共同検証

三菱は花王バブが使えます。ホットあわーとも、相性バツグン！

×

浴槽内にも当社独自のマイクロバブルで快適バスタイム

【快適性向上～ラッセル円環図】

ホットあわー入浴を実施すると、さら湯と比較し湯上り後の快適感が持続！

【評価手法】入浴前を基準とした気分の変化をLikert法に基づくアン

ケート結果から得点として数値化。本データより２つの評価軸を抽出して心理学者ラッセルの感情円環モデルに当てはめて解釈し、マイクロバブルあり・なしで比較

関西学院大学長田典子教授との共同研究による。

In the DHW system, some bubble generates This gives the comfortableness



16

Color monitor indicates water usage in a week, some advice for energy saving and so on.



17

Tablet can be used to control DHW system


INSTALLER FOCUSED TECHNOLOGIES

18

Piping of hot water is easy to connect because space between each piping is wider


WATER QUALITY MANAGEMENT TECH.

19

マイクロバブル（直径0.1ミリ＝100㎛以下）

■バブルおそうじの原理（イメージ）通常の気泡マイクロバブル

〈バブル注水洗浄〉

〈バブル循環洗浄〉

マイクロバブルのＷ配管洗浄

バブルおそうじとは？

■マイクロバブル（イメージ）

入浴後お風呂の栓をポンッ！と抜くだけで、本体が浴槽内の水位変化を感知し、自動で洗浄が始まります。

Bubble cleans up piping between heat pump and bathtub


SMART TECHNOLOGIES

20

HEMS controller controls heat pump, air-conditioner, water heat and so on simultaneously - 16 systems can be connected -.

三菱ＨＥＭＳ

快適をつくる

省エネをすすめる

みんなが使える

業界最多の１６機種連結が可能！


21

OTHER SUPPORTIVE TECH.

Exp.

Cond.

Accum.

Comp.

Eva.

Controller

Simulation technologies


22

デモンストレーション

OTHER SUPPORTIVE TECH. Simulation technologies- Energy flow +M


PUBLIC SUPPORTS FOR R&D

23

NEDO (Governmental) Project


FINANCIAL SUBSIDY TO BUY H.P.

24

From 2002 to 2010, we had subsidy for CO2 heat pump water heater. 1/2 of difference balance between conventional water heater and CO2 heat pump water heater.

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